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Lotus Service Notes Section EMP - lotus vehicle service information
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1. Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied mms OGC O poss Pedal Position Sensor E Circuit Low P2127 Description Two potentiometers are built into the throttle pedal unit in order to provide a throttle demand signal to the ECU Note that the potentiometers operate on 5 volts Enable Criteria None Disable Criteria None Potential failure modes Signal short circuit lt 0 283 V Reference voltage open circuit Reference voltage short to ground Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied Pedal Position Sensor E Circuit High P2128 Enable Criteria None Disable Criteria None Potential failure modes Signal open circuit gt 4 487 V Reference voltage open circuit Reference voltage short to ground Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied Throttle Position Sensor A B Voltage Correlation P2135 Description Two potentiometers are built into the throttle actuator unit in order to provide a throttle position signal to the ECU Two processors within the ECU compare the two output signals which sh
2. ENGINE MANAGEMENT SECTION EMP Sub Section Page Diagnostic Trouble Code List EMP 1 Diagnostic Scanner Tools EMP 2 Engine Management Component Location EMP 3 Mechanical Throttle Setting Procedure EMP 4 2006 Model Year Electronic Throttle Control EMP 5 Diagnostic Trouble Code Supplement 06 M Y EMP 6 Diagnostic Trouble Code Supplement 2011 M Y Elise Euro 5 EMP 7 Basic Functions of Lotus Scan 3 Tool EMP 8 Updated 12th September 2011 Page 1 3 43 47 48 49 50 58 133 EMP 1 DIAGNOSTIC TROUBLE CODE LIST DTC P0011 P0012 P0076 P0077 P0101 P0102 P0103 P0106 P0107 P0108 P0111 P0112 P0113 P0116 P0117 P0118 P0121 P0122 P0123 P0128 P0131 P0132 P0133 P0134 P0135 P0137 P0138 P0139 P0140 P0141 P0171 P0172 P0201 P0202 P0203 P0204 P0300 P0301 P0302 P0303 P0304 P0324 P0327 P0328 P0335 P0340 P0351 P0352 P0353 P0354 P0420 P0441 P0442 m Page 2 Fault description Camshaft Position Timing Over Advanced or System Performance Camshaft Position Timing Over Retarded Intake Valve Control Solenoid Circuit Low Intake Valve Control Solenoid Circuit High Mass or Volume Air Flow Circuit Range Performance Mass or Volume Air Flow Circuit Low Input Mass or Volume Air Flow Circuit High Input Manifold Absolute Pressure Barometric Pressure Circuit Range Performance Manifold Absolute Pressure Barometric Pressure Circuit Low Input Manifold Absolute Pressure Barometric
3. P0107 Manifold Absolute Pressure Barometric Pressure Circuit Low Input P0108 Manifold Absolute Pressure Barometric Pressure Circuit High Input Description The barometric pressure sensor is located internally within the ECU and measures atmospheric pressure This parameter is required to compensate the mass air flow when the vehicle is operated at higher altitudes P0107 P0108 Monitor e Continuous Enable Criteria e Engine running Disable Criteria None Malfunction Criteria e P0107 Voltage at ECU lt 1 08V for time gt 1 5 secs e P0108 Voltage at ECU gt 4 98V for time gt 1 5 secs Potential failure modes e Sensor failure Diagnostic Mask e The MIL will be illuminated if the faults are present for 2 consecutive trips Intake Air Temperature P0112 P0113 P0112 Intake Air Temperature Sensor 1 Circuit Low P0113 Intake Air Temperature Sensor 1 Circuit High Description The combined sensor which measures both Mass Air Flow MAF and Intake Air Temperature IAT is incorporated into the air box The IAT sensor is a thermistor device which changes resistance with tempera ture As air intake temperature decreases the thermistor resistance value increases and conversely as air temperature increases so the thermistor resistance value decreases Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 IAT Signal E3 48 Way Centre 2 IAT Ground J3 48 Way Centre 3 Battery Voltage 4 MAF Grou
4. P0300 P0301 P0302 P0303 P0304 Misfire faults Potential failure modes e Exhaust system leak e Oxygen sensor faults e Oxygen sensor heater failure e Catalyst failure Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips e Further information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 86 to DI 88 Evaporative Emission Control Leak Detection System P0441 P0442 P0455 P0456 P0441 Evaporative Emission System Incorrect Purge Flow P0442 Evaporative Emission System Leak Detected small leak P0455 Evaporative Emission System Leak Detected large leak P0456 Evaporative Emission System Leak Detected very small leak Description During an Evaporative Emission System Leak Detection check the vacuum in the system is monitored by ECU using the fuel tank pressure sensor At the appropriate time the test starts with the ECU closing the canister closure value and opening the purge solenoid with the appropriate duty cycle This allows the engine to draw a vacuum on the entire evaporative emission system After a calibrated vacuum level is achieved the purge solenoid is closed sealing the system A leak is detected by monitoring any decrease in vacuum level over a calibrated period of time Sensor component connections Vapour Pressure sensor Connector Pins Description ECU Pin ECU Connector 1 Ground 78 L4 28 Way Left 2 Signal 75 C1 28 W
5. Engine Cooling Fan Control P0480 Fan 1 Control Circuit P0481 Fan 2 Control Circuit Component connections Sensor Connector Description 2 ACCM 2 Relay 1 3 ACCM 2 Relay 2 ACCM A C Control Module Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes e A C Control Module failure e ECU output circuit failure Notes P0480 P0481 ECU Pin ECU Connector 67 J2 28 Way Left 06 M Y in brackets 60 J3 28 Way Left No MIL will be illuminated for this failure Vehicle Speed Sensor P0500 P0500 Vehicle Speed Sensor A Description The ECU uses the left rear wheel speed sensor to determine vehicle speed This output to the ECU is via the ABS module Sensor connections ABS Control Unit Description ECU Pin ECU Connector 3 Wheel Speed 3 from ABS LR 77 B4 28 Way Left 06 M Y in brackets Sensor characteristics Hall Effect sensor Malfunction Criteria e TPS lt 0 8 e Engine speed gt 1800rpm and lt 5010rpm e Baro gt 756 mbar Monitor Continuous Potential failure modes e Open or short in vehicle speed sensor circuit e Build up of debris in the sensing plate on the wheel hub Notes The MIL will be illuminated if the fault is present for 2 consecutive trips Idle Speed Control P0506 P0507 P0508 P0509 P0506 Idle Air Control System RPM Lower Than Expected P0507 Idle Air Control System RPM Higher Than Expected P0508 Idle
6. e The MIL will be illuminated if fault is present ECU Connector 48 Way Centre 48 Way Centre 48 Way Centre 48 Way Centre 48 Way Centre 48 Way Centre P0122 P0123 P0222 P0223 P0123 Monitor e Continuous Enable Criteria e None Disable Criteria e None Malfunction Criteria e Signal voltage gt 4 765V Potential failure modes e Signal open circuit e Reference voltage open circuit e Reference voltage short to ground e Sensor failure Diagnostic Mask e The MIL will be illuminated if fault is present P0222 Monitor e Continuous Enable Criteria e None Disable Criteria None Malfunction Criteria e Signal voltage lt 2 146V Potential failure modes e Signal short circuit e Reference voltage open circuit e Reference voltage short to ground e Sensor failure Diagnostic Mask e The MIL will be illuminated if fault is present P0223 Monitor e Continuous Enable Criteria e None Disable Criteria e None Malfunction Criteria e Signal voltage gt 4 985V Potential failure modes e Signal open circuit e Reference voltage open circuit e Reference voltage short to ground e Sensor failure Diagnostic Mask e The MIL will be illuminated if fault is present Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of mul tiple codes a mechanically sprung 7 opening may be applied O2 Sensor Pre Catalyst P0131 P013
7. e Vehicle speed between 0 255 km h 158 5 mph MAF per stroke between 15 70 mg e Engine speed between 2600 3511rpm Engine run time gt 200 seconds Coolant temperature gt 60 C 140 F e Closed loop fuelling enabled Disable Criteria P0116 P0117 P0118 Coolant temperature sensor faults P0131 P0132 P0134 P0135 Pre catalyst oxygen sensor faults P0101 P0102 P0103 MAF sensor faults Monitor Monitored until the required amount of switches in both directions has been achieved Approx 150 sec Potential failure modes e Sensor connector and wiring should be checked for corrosion and loose connections e Sensor contaminated possibly from fuel improper use of RTV engine oil or coolant P0134 Set when the sensor fails to switch above 557mV 06 M Y 675mV and below 400mV within a 5 1 second period for 5 consecutive checks 06 M Y within 60 sec Enable Criteria Engine run time gt 30 seconds e Engine is not at idle e Engine is in closed loop fuel control Monitor Until either passed or failed 5 1 x 5 25 5 sec initial 30 sec 55 sec maximum Potential failure modes Sensor connector and wiring should be checked for corrosion and loose connections P0135 Set when the sensor output is greater than 1900mA or less than 250mA for 1 5 seconds for 40 consecutive checks Enable Criteria Engine run time gt 60 seconds Monitor Continuous Potential failure modes S
8. for up to 4 seconds Disable Criteria None Potential failure modes VIN not programmed Incompatible VIN programmed Throttle Actuator Control Range Performance P0638 Description The single throttle butterfly valve mounted at the inlet to the intake plenum is operated by a stepper motor under the command of the engine ECU The valve moves through a range of nearly 90 and should display 100 at full throttle and around 2 at idle Monitor Continuous Enable Criteria Engine running Disable Criteria Electronic throttle fault s present Potential failure modes Blocked throttle body Damage to throttle actuator Notes A mechanically sprung 7 throttle opening may be imposed Throttle Actuator Control Motor Circuit Open P2100 Description The throttle actuator stepper motor operates on 12 volts Monitor Continuous Enable Criteria None Disable Criteria None Potential failure modes Throttle actuator control motor open circuit Throttle Actuator Control Motor Circuit Low P2102 Monitor Continuous Enable Criteria None Disable Criteria None Potential failure modes Throttle actuator control motor short to ground Throttle Actuator Control Motor Circuit High P2103 Monitor Continuous Enable Criteria None Disable Criteria None Potential failure modes Throttle actuator control motor short to supply voltage Throttle Actuator Control System Forced Idle P2104 Description
9. 4 Bank 1 Battery Voltage Sensor characteristics Normal operating range is 0 1000mV P0131 Monitor e Continuous Disable Criteria e DFCO Deceleration Fuel Cut Off e AE DE Acceleration Enrichment Deceleration Enleanment e Misfire Enable Criteria e Engine running Failure Criteria e Sensor voltage lt 24mV for more than 1 5 seconds consecutively for a specified number of times Potential failure modes e Low fuel pressure Lean mixture e Malfunctioning sensor e External water on sensor e Sensor wire shorted to ground Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0132 Monitor e Continuous Disable Criteria e None Enable Criteria e Engine running Malfunction Criteria e Sensor voltage gt 1200V for more than 1 5 seconds consecutively for a specified number of times Potential failure modes e High fuel pressure Rich mixture e Leaking or shorted injector e Purge valve fault e Oxygen sensor contamination Engine oil contamination e Sensor wire shorted to heater voltage Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0133 Monitor e Continuous Disable Criteria e P0116 P0117 P0118 Coolant temperature sensor faults e P0101 P0102 P0103 MAF sensor faults e P0335 P0500 Crank or vehicle speed faults e P0131 P0132 P0134 P0135 Pre catalyst
10. Baro gt 756 mbar e Engine in a mode that indicates that the vehicle must be moving Malfunction Criteria e KMH lt 5 kmh Potential failure modes e ABS module failure e CAN bus communication error to ABS controller Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips Idle Speed Control Idle Speed Conirol P0506 P0507 P0506 Idle Air Control System RPM Lower Than Expected P0507 Idle Air Control System RPM Higher Than Expected Description The ECM controls the engine idle speed using a combination of spark advance and throttle blade adjustment If this control cannot attain the desired idle speed a fault is diagnosed Monitor e Continuous Enable Criteria Engine at idle speed e Battery voltage between 10 V and 16 V Malfunction Criteria 1 e Idle air learn value on upper limit of 1 8g s e Idle speed more than 200 rpm above desired idle speed for more than 5 seconds Malfunction Criteria 2 e Idle air learn value on lower limit of 1 8g s e Idle speed more than 100 rpm below desired idle speed for more than 5 seconds Potential failure modes e Induction system air leak e Excessive engine load from front end accessory drive system water pump power steering alternator e Electronic Throttle Control Diagnostic Mask e The MIL will be illuminated if a fault is present for 2 consecutive trips Notes There will be a different learn value for AC on and AC off Either
11. Circuit Low P0077 Intake Valve Control Solenoid Circuit High P0079 Exhaust Valve Control Solenoid Circuit Low P0080 Exhaust Valve Control Solenoid Circuit High P0076 P0077 P0079 P0080 Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes P0076 P0079 VVT control valve open circuit or short to ground P0077 P0080 VVT control valve circuit short to battery voltage e ECU output circuit failure VVT control valve Diagnostic Mask The MIL will be illuminated if the faults are present for 2 consecutive trips Intake Air Flow P0101 P0102 P0103 P0101 Mass or Volume Air Flow Circuit Range Performance P0102 Mass or Volume Air Flow Circuit Low Input P0103 Mass or Volume Air Flow Circuit High Input Description The Mass Air Flow MAF sensor is incorporated into the airbox and measures both intake air flow rate and Intake Air Temperature IAT The MAF sensor uses a hot wire exposed to the airflow which is maintained at a constant temperature by a constant current flow This is achieved within the sensor unit by varying the voltage applied to the hot wire This voltage is the output signal from the MAF sensor Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 IAT Signal E3 48 Way Centre 2 IAT Ground J3 48 Way Centre 3 Battery Voltage 4 MAF Ground J4 48 Way Centre 5 MAF Signal G1 48 Way Centre Sensor characteri
12. Criteria e None Disable Criteria e MAF fault s present Potential failure modes e Throttle plate damage e Air leak in intake system Notes A mechanically sprung 7 throttle opening may be imposed or the injectors may be shut off to stop the engine A C Refrigerant Distribution Valve P2612 P2613 P2612 A C Refrigerant Distribution Valve Control Circuit Low P2613 A C Refrigerant Distribution Valve Control Circuit High Description The A C refrigerant flow is regulated by the ECM using the distribution valve to control the evaporator to the required temperature and prevent freezing Component connections Connector Description ECM Pin ECM Connector 1 Control valve driver K3 48 Way Centre 2 Ignition via rear ign relay Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Potential failure modes e P2612 valve wiring open circuit or shorted to ground e P2612 loss of power from rear ignition relay e P2613 valve circuit ECM side shorted to battery voltage e Valve failure e ECM output circuit failure Diagnostic Mask The service light will be illuminated for 30 seconds after engine start if the fault has been present for the previous two trips Lost Communications with TCM U0101 U0101 Lost Communications with TCM Description The ECM communicates with the Transmission Control Module TCM via the CAN bus If these CAN bus communications have been in
13. If a problem is detected which could result in faster engine speed than commanded by the pedal the actuator is switched out allowing the throttle valve to default to a 6 mechanically sprung setting This provides a fast idle speed which may be used to effect a limp home mechanism Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes Electronic throttle fault Note This code indicates action taken by the ECU and will always be accompanied by another code which has caused this action Throttle Actuator Control System Forced Engine Shutdown P2105 Description If a problem is detected which could result in engine speed runaway or if sufficient control of engine speed is lost the ECU switches off the fuel injectors in order to stop the engine Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes Electronic throttle fault Note This code indicates action taken by the ECU and will always be accompanied by another code which has caused this action Throttle Actuator Control System Forced Limited Power P2106 Description If a problem is detected which could result in engine speed control difficulties the ECU will limit throttle opening to a maximum of 15 Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes Electronic throttle fault Note This code indi
14. Pressure Circuit High Input Intake Air Temperature Sensor 1 Circuit Range Performance Intake Air Temperature Sensor 1 Circuit Low Intake Air Temperature Sensor 1 Circuit High Engine Coolant Temperature Circuit Range Performance Engine Coolant Temperature Circuit Low Engine Coolant Temperature Circuit High Throttle Position Sensor A Circuit Range Performance Throttle Position Sensor A Circuit Low Throttle Position Sensor A Circuit High Coolant Thermostat Coolant Temperature Below Thermostat Regulating Temperature O2 Sensor Circuit Low Voltage Pre Catalyst O2 Sensor Circuit High Voltage Pre Catalyst O2 Sensor Circuit Slow Response Pre Catalyst O2 Sensor Circuit No Activity Detected Pre Catalyst O2 Sensor Heater Circuit Pre Catalyst O2 Sensor Circuit Low Voltage Post Catalyst O2 Sensor Circuit High Voltage Post Catalyst O2 Sensor Circuit Slow Response Post Catalyst O2 Sensor Circuit No Activity Detected Post Catalyst O2 Sensor Heater Circuit Post Catalyst System Too Lean System Too Rich Injector Circuit Open Cylinder 1 Injector Circuit Open Cylinder 2 Injector Circuit Open Cylinder 3 Injector Circuit Open Cylinder 4 Random Multiple Cylinder Misfire Detected Cylinder 1 Misfire Detected Cylinder 2 Misfire Detected Cylinder 3 Misfire Detected Cylinder 3 Misfire Detected Knock Control System Error Knock Sensor 1 Circuit Low Knock Sensor 1 Circuit High Crankshaft Position Sen
15. catalyst system damage Description When the engine misfire reaches a high enough percentage the engine emission output levels can exceed the allowed limits this will produce the fault code P1301 If the misfire percentage is high enough and there is a possibility that the catalyst may be damaged then code P1302 will be set See misfire faults P0300 P0301 P0302 P0303 P0304 Notes e The MIL will flash for a 1302 fault code e The MIL will be illuminated if the 1301 fault is present for 2 consecutive trips Coolant Recirculation Pum P2602 P2603 P2602 Coolant Pump Control Circuit Low P2603 Coolant Pump Control Circuit High Description During a hot shutdown of the engine the recirculation pump can continue to pump coolant around the engine The recirculation pump will run after the engine has been turned off if the enable criteria are matched Component connections Connector Description ECU Pin ECU Connector 2 RMC 1 MFRU Fuse box 5 RMC 2 MFRU Recirc Pump Relay 69 K1 28 Way Left 06 M Y in brackets MFRU Multi Function Relay Unit Monitor Continuous Enable Criteria P2602 engine not running P2603 engine running Disable Criteria None Potential failure modes e Pump open circuit or short to ground e Multi Function Relay Unit failure e Pump failure e ECU output circuit failure Notes No MIL will be illuminated for this failure Camshaft Lift Control VVL P2646
16. conditions are not met P0444 P0445 P0447 P0448 P0452 P0453 P0446 This code can be caused by the canister closure valve CCV being either stuck closed or open CCV stuck open A CCV is stuck open then there will be minimal tank depression when the leak test is performed Addition check will be performed when the vehicle is being driven before the code is set CCV stuck closed Detection of a stuck closed CCV is implemented by detecting an excessively low tank pressure during normal purge Detection of this fault will disable further purging Additional checks for stuck CCV closed e Vehicle not stationary e Load between 30 35 e Purge Value gt 75 Monitor Until leak check is completed P0451 This code is set when the ECU detects abnormalities in the fuel tank vapour pressure sensor signal The ECU analyses the filtered and unfiltered pressure signal at idle after a de slosh period to determine if there is any difference a big difference indicates as fault The ECU also monitors the signal on gear changes to see if there is any pressure rise as a result of the fuel sloshing around Disable Criteria P0500 Wheel speed sensor fault Monitor Until leak check is completed Notes The MIL will be illuminated if the fault is present for 2 consecutive trips Fuel Level Sensor P0461 P0462 P0463 P0461 Fuel Level Sensor A Circuit Range Performance P0462 Fuel Level Sensor A Circuit Low P0463 Fue
17. e The service light will be illuminated for 30 seconds at the point the fault occurs and then illuminate for 30 seconds after engine start if the fault is present P0807 P0808 Monitor e Continuous Enable Criteria e None Disable Criteria e None Malfunction Criteria e P0807 Sensor voltage lt 0 21V e P0808 Sensor voltage gt 4 93V Potential failure modes e P0807 Clutch sensor wiring open circuit or shorted to ground e P0808 Clutch sensor ECU input circuit shorted to 5V or 12V e Clutch sensor failure e Clutch pedal failure e ECU input circuit failure Diagnostic Mask e The service light will be illuminated for 30 seconds at the point the fault occurs and then illuminate for 30 seconds after engine start if the fault is present Valvematic variable valve lift controller P1045 Valvematic SDOWN Circuit Malfunction P1046 Valvematic ECU Detected Difference Between Target and Actual Valvematic Angle P1047 Valvematic Driver Learned Value Error Power Source Circuit Malfunction P1049 Valvematic Driver Internal Circuit Malfunction P1055 ECU Detected Difference Between Target and Actual Valvematic Angle P1645 A rocker arm actuator position sensor circuit P2646 A Rocker Arm Actuator System Performance or Stuck Off P2647 A Rocker Arm Actuator System Stuck On P2648 A Rocker Arm Actuator Control Circuit Low P2649 A Rocker Arm Actuator Control Circuit High U0115 Lost
18. except V to confirm you want to exit and disconnect Scan Tool from the vehicle VIN writing to the ECU O6MY specific Before following instructions on this page carry out steps 1 7 as shown in previous VIN writing to the ECU except O6MY instructions ae a ea a 73 Step 1 Change the VIN s serial number last for digits to 6999 and select V Step 2 You will see the following error message This indicates that the VIN has not been changed but the model year has Step 7 From main operations select 5 Reprogram VIN Step 3 Using the lt gt A buttons change the VIN to match the vehicle and then press v Step 4 Follow the on screen instructions then press X to exit out of all the menus except V to confirm you want to exit and disconnect the Scan Tool from the vehicle Page 137 mm T
19. maintain an air fuel ratio of 14 7 1 under normal driving conditions Potential failure modes e Fuel Pressure too low e Air leak in system e Water in fuel e Exhaust leak crack before front oxygen sensor e Injector fault e Sensor connector and wiring for signs of corrosion or loose connections P0172 This code is set when the calculated fuel demand has been decreased to its minimum limit of 17 and the system still cannot maintain an air fuel ratio of 14 7 1 under normal driving conditions Potential failure modes e Fuel Pressure too high e Leaking fuel injector e Restriction in the exhaust system or air intake filter e Erratic throttle position sensor Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 67 to DI 72 Euel Injection System P0201 P0202 P0203 P0204 P0201 Injector Circuit Open Cylinder 1 P0202 Injector Circuit Open Cylinder 2 P0203 Injector Circuit Open Cylinder 3 P0204 Injector Circuit Open Cylinder 4 Description The ECU has four injector driver circuits each of which controls an injector When the engine is running the ECU continuously monitors the injector circuit feedback signals The feedback signal should be low when the injector is ON and high voltage when the injector is OFF Component connections Injector ECU Pin ECU Conn
20. operations select 1 for Elise 2 for Exige Step 10 From main operations Select 7 View Program ID s Step 3 From main operations Select 3 Elise O4MY on Select 2 Exige 04MY on Step 11 Confirm program installed then use Vv Step 4 From main operations select 3 Elise 2ZZ GE Elise only Step 12 To write the vehicle VIN if required refer to step 6 on VIN writing to ECU instructions Step 5 From main operations Select 4 Reprogram ECU If VIN writing is not required then use the X button to exit out of all menus except to confirm you want to exit and then disconnect the Scan 3 Tool from the vehicle VIN writing to the ECU except O6MY Step 1 From the main menu select 1 Lotus Vehicles Step 2 From main operations select 1 for Elise 2 for Exige Step 3 From main operations Select 3 Elise 04MY on Select 2 Exige 04MY on Step 4 From main operations select 3 Elise 2ZZ GE Elise only Step 5 From main operations select 1 Engine Data The follow on screen instructions Step 6 From main operations select 12 Vehicle Info Step 7 From vehicle info select 5 Reprogram VIN Note If writing an O6MY VIN then go straight to next page at this step Step 8 Using the lt gt and A buttons change the VIN to match the vehicle then press Siep 9 Follow the on screen instructions then press X to exit out of all the menus
21. oxygen sensor faults checks Enable Criteria e Vehicle speed between 0 255 km h 158 5 mph e Percentage load between 22 70 e Engine speed between 1285 3511 rpm Engine run time gt 200 seconds e Coolant temperature gt 60 C 140 F e Closed loop fuelling enabled Monitor e Monitored until the required amount of switches 30 in both directions has been achieved or 130 seconds has elapsed Malfunction Criteria e Set when the sensor fails to switch from a Lean to a Rich condition or switch from a Rich to a Lean condition in a sufficiently timely manner A selection of switches is used to determine the average times Potential failure modes e Sensor connector and wiring should be checked for corrosion and loose connections e Sensor contaminated possibly from fuel improper use of RTV engine oil or coolant Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0134 Monitor e Until either passed or failed Enable Criteria Engine run time gt 30 seconds e Engine is not at idle e Engine is in closed loop fuel control e 02 sensor ready Malfunction Criteria e Set when the sensor fails to switch above 600mV and below 322mV within a 60 second period Potential failure modes e Sensor connector and wiring should be checked for corrosion and loose connections e Gas leak in exhaust system Diagnostic Mask e The MIL will be illuminated if these fa
22. whilst the rear oxygen sensor should also be switching between rich and lean but more slowly When both the oxygen sensor waveforms change at a similar rate it indicates that the catalyst performance has deteriorated The ECU counts the number of pre and post catalyst oxygen sensor switches and divides one by the other to determine a ratio If this ratio is too high a fault will be indicated Sensor connections Pre catalyst oxygen sensor Sensor Connector Description ECU Pin ECU Connector 1 Bank 1 Signal G3 48 Way Centre 2 Bank 1 Ground J2 48 Way Centre 3 Bank 1 Heater Supply H3 48 Way Centre 4 Bank 1 Battery Voltage Post catalyst oxygen sensor Sensor Connector Description ECU Pin ECU Connector 1 Bank 1 Signal H1 48 Way Centre 2 Bank 1 Ground K4 48 Way Centre 3 Bank 1 Heater Supply K1 48 Way Centre 4 Bank 1 Battery Voltage gt Monitor e Continuous Enable Criteria e Closed loop fuel control enabled Coolant temperature gt 60 C 140 F e Baro gt 756 mbar e Vehicle speed lt 130 km h 81 mph e MAF lt 48 g sec amp MAF gt 2 g sec e Air inlet temp gt 10 C 14 F e Accumulated Mass Air gt 2000 4080 grams depending on coolant temperature Disable Criteria e P0101 P0102 P0103 MAF faults e P0107 P0108 MAP Baro Faults P0116 P0117 P0118 Coolant temperature faults P0131 P0132 P0133 P0134 P0135 P0137 P0138 P0139 P0140 P0141 Oxygen sensor faults e P017
23. 1 P0172 Fuelling faults e P0300 P0301 P0302 P0303 P0304 Misfire faults e P0500 Speed sensor fault Malfunction Criteria e Switch ratio between Pre amp Post catalytic converter O2 sensors gt 0 6 Evaporative Emission Control Purge Open Closed Circuit P0444 P0445 P0444 Evaporative Emission System Purge Control Valve Circuit Open P0445 Evaporative Emission System Purge Control Valve Circuit Closed Description When the engine is running the ECU continuously monitors the status of the evaporative emission components for open circuit or short to The feedback signal should be low when turned ON and high when turned OFF The following codes will be set if the above conditions are not met P0444 P0445 Sensor component connections Purge Solenoid Connector Pins Description ECU Pin ECU Connector 1 Battery Voltage 5 2 Solenoid Output B3 48 Way Centre Potential failure modes e P0444 purge valve wiring open circuit e P0445 purge valve short circuit Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips Fuel Level Sensor P0462 P0463 P0462 Fuel Level Sensor A Circuit Low P0463 Fuel Level Sensor A Circuit High Description When the engine is running the ECU continuously monitors the fuel level sensor feedback signals The feedback signal should be low when turned ON and high when turned OFF The following codes will be set if the
24. 5 P0132 P0133 P0134 P0131 O2 Sensor 1 Circuit Low Voltage P0132 O2 Sensor 1 Circuit High Voltage P0133 02 Sensor 1 Circuit Slow Response P0134 O2 Sensor 1 Circuit No Activity Detected P0135 O2 Sensor 1 Heater Circuit Description The oxygen sensors separately monitor the oxygen content in the exhaust gases of each bank of the engine Each sensor is electrically heated to improve response after start The sensor consists of a zirconia electrode between two platinum plates When zirconia comes into contact with oxygen it becomes an electrical conductor The exhaust gases pass through louvers in the sensor One plate is in contact with the outside air and the other plate is in contact with the exhaust gases The platinum plate in contact with the air is electrically negative due to the oxygen in the atmosphere and the plate in contact with the exhaust gases is electrically positive This will cause a difference in electrical potential to develop between the two plates Thus the voltage across the platinum plates ranges approximately from 100 millivolts to 900 millivolts depending on the oxygen content of the exhaust gases Thus when the air fuel mixture is rich the oxygen sensor output will be high If the air fuel mixture is lean the oxygen sensor output will be low Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Bank 1 Signal G3 48 Way Centre 2 Bank 1 Ground J2 48 Way Centre 3 Bank 1 Heater H3 48 Way Centre
25. 7 P2128 P2135 P2138 P2173 Throttle Position Sensor B Circuit Low Throttle Position Sensor B Circuit High VIN Not Programmed or Incompatible ECU Throttle Actuator Control Range Performance Throttle Actuator Control Motor Circuit Open Throttle Actuator Control Motor Circuit Low Throttle Actuator Control Motor Circuit High Throttle Actuator Control System Forced Idle Throttle Actuator Control System Forced Engine Shutdown Throttle Actuator Control System Forced Limited Power Throttle Actuator Control Module Processor Throttle Actuator Control Module Performance Pedal Position Sensor D Circuit Low Pedal Position Sensor D Circuit High Pedal Position Sensor E Circuit Low Pedal Position Sensor E Circuit High Throttle Position Sensor A B Voltage Correlation Pedal Position Sensor D E Voltage Correlation Throttle Actuator Control System High Airflow Detected Crankshaft Position Camshaft Position Correlation Error P0016 Description The crankshaft position sensor is used to identify engine position and speed via a pole wheel mounted on the front end of the crankshaft The camshaft position sensor is used to determine camshaft position from a three vane reluctor on the rear end of the inlet camshaft The Variable Valve Timing system VVT on the inlet cam shaft can vary the timing by up to 25 with fault codes P0011 and P0012 allocated to errors with the variable timing Fault code P0016 ind
26. Air Control System Circuit Low prior 06 M Y P0509 Idle Air Control System Circuit High prior 06 M Y Description Prior to 06 M Y the ECU controls the air entering the engine with an idle air control IAC valve To increase the idle the ECU commands the IAC to open up This allows more air to bypass the throttle blades To decrease the idle speed the ECU commands the IAC to close up This will reduce the amount of air bypassing the throttle body The ECU performs low and high circuit checks when it is activating the component For 06 M Y onwards the electronically controlled throttle needs no IAC as the ECU commands the throttle valve itself to control idle speed Component connections prior to 06 M Y Connector Description ECU Pin ECU Connector 1 Idle air control value 35 52 Way 2 Battery Voltage 3 Ground Malfunction Criteria P0506 This code is set if the engine fails to achieve the desired idle speed by more than 100 rpm P0507 This code is set if the engine fails to achieve the desired idle speed by more than 200 rpm P0508 This is set when the ECU does not get the expected feedback prior to 06 M Y P0509 This is set when the ECU does not get the expected feedback prior to 06 M Y Enable Criteria Engine at idle speed e Battery Voltage between 10 16 V e Idle speed learn limit 15 e Timer expired 5 seconds Monitor Continuous Potential failure modes e Throttle body sti
27. CAN is an electronic standard to allow high speed communication between modules and controllers via a serial data bus The bus is a circuit linking the modules to the controller consist ing of a pair of cables twisted together to reduce electromagnetic interference and carrying a square wave voltage signal corresponding to 0 s and 1 s coded in such a way as to identify and prioritise the individual messages On the Elise Exige CAN based systems for 2008 onwards include engine management anti lock braking and related features tyre pressure monitoring and onboard diagnostics A Vehicle Communication Device TOOOT 1472F introduced for the Europa model is used to connect the vehicle to the laptop Lotus TechCentre All system interrogation and diagnosis are carried out via the Lotus TechCentre The minimum specification of the laptop computer for installation of the Lotus TechCentre is as fol lows Processer 1 70 Ghz 1 GB RAM 40 GB HDD CDRW DVD ROM WIN XP PRO or VISTA USB interface Ethernet or Wireless LAN Note that this laptop should be dedicated soley to the Lotus TechCentre with no other software installed This diagnostic software is designed primarily for use by trained Lotus technicians and is available as a CD under part number TO00T1510F version 4 or later supercessions A monthly Lotus Dealers or annual non Lotus dealers licence and support fee will also be levied providing access to Lot
28. CU Connector 1 Ground C3 48 Way Centre 2 Signal G2 48 Way Centre Sensor characteristics 20 C 4 F 13 75 16 25 KO 15KQ 20 C 68 F 2 31 2 58 KO 2 45KQ 80 C 176 F 0 310 0 326 KO 3200 110 C 230 F 0 1375 0 1425 KQ 1400 P0116 Monitor e Continuous Disable Criteria e None Enable Criteria 1 e Engine running gt 1000 seconds Malfunction Criteria 1 e Engine coolant temperature lt 40 C 104 F Enable Criteria 2 e Engine running Malfunction Criteria 2 e Engine coolant temperature erratic by more than 30 C 54 F Potential failure modes e Sensor wiring e Sensor failure Thermostat failure Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0117 Monitor e Continuous Disable Criteria e None Enable Criteria e Engine running Malfunction Criteria e Coolant temperature gt 119 C 246 F for time gt 1 5 secs Potential failure modes e Signal short circuit e Sensor failure Thermostat failure e Cooling system problem Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0118 Monitor e Continuous Disable Criteria e None Enable Criteria e Engine running Malfunction Criteria e Coolant temperature gt 38 C 36 F for time gt 1 5 secs Potential failure modes e Signal open circuit e Sensor failure Diag
29. F value g sec 0 0 MAF sensor signal open circuit or short to ground MAF value g sec 0 0 e MAF sensor ground open circuit MAF value g sec gt 229 0 Enable Criteria Engine running Disable Criteria None Potential failure modes e MAF sensor battery voltage open circuit MAF value g sec 0 0 e MAF sensor signal open circuit or short to ground MAF value g sec 0 0 MAF sensor ground open circuit MAF value g sec gt 229 0 Notes e The MIL will be illuminated if the faults are present for 2 consecutive trips Further information on the sensor may be found in Toyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J Page DI 26 to DI 32 Barometric Pressure P0106 P0107 P0108 P0106 Manifold Absolute Pressure Barometric Pressure Circuit Range Performance P0107 Manifold Absolute Pressure Barometric Pressure Circuit Low Input P0108 Manifold Absolute Pressure Barometric Pressure Circuit High Input Description The barometric pressure sensor is located internally within the ECU and measures atmospheric pressure This parameter is required to compensate the mass air flow when the vehicle is operated at higher altitudes Monitor Continuous P0106 Enable Criteria e Engine running Engine speed 2190 3510rpm e TPS gt 80 Disable Criteria P0101 P0102 P0103 MAF Sensor fault codes P0121 P0122 P0123 P0222 P0223 P2135 Throttle Pedal position fault codes Potential failure modes Sen
30. P2647 P2648 P2649 P2646 A Rocker Arm Actuator System Performance or Stuck Off P2647 A Rocker Arm Actuator System Stuck On P2648 A Rocker Arm Actuator Control Circuit Low P2649 A Rocker Arm Actuator Control Circuit High Description Intake and exhaust camshaft lift can be changed by means of the Variable Valve Lift VVL system which varies the amount of maximum lift of the intake and exhaust valves The mechanism uses dual element rocker arms to provide cam changeover with both the intake and exhaust camshafts having high and low speed cam profiles The system is ECU controlled using an oil control solenoid which when activated uses hydraulic pressure to push a rocker arm locking pin into engagement to activate the high speed cam profile A signal from the VVL oil pressure switch provides feedback to the ECU that VVL activation has taken place VVL activation to the high lift camshaft profile occurs at 6200rpm when engine speed is increasing and returns to the low lift camshaft profile at 6000rpm when the engine speed is decreasing Coolant temperature must be gt 60 C 140 F Component connections Connector Description ECU Pin ECU Connector 1 Battery Voltage 2 VVL Oil Control Valve 12 H3 52 Way Right 06 M Y in brackets VVL Oil Pressure Switch 21 B2 52 Way Right Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes e VVL valve stuck open closed e VVL valve
31. V for more than 1 5 seconds consecutively for a speci fied number of times Potential failure modes e Check and rectify any front sensor fault code as they may be causing the fault code to be set e Catalyst Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0139 O2 Sensor slow response can be defined in two ways 1 Slow response and 2 Delayed response 1 Slow Response Set when the sensor fails to reach 600mV after 5 seconds of Fuel Enrichment or when the sensor fails to drop below 322mV after 5 seconds of DFCO Enable Criteria e Engine run time gt 200 seconds gt 10 g sec MAF only enable criteria when switching rich gt 600mV in fuel enrichment state e DFCO for rich to lean switch Disable Criteria e P0116 P0117 P0118 Coolant Temperature Sensor fault e P0261 P0262 P0264 P0265 P0267 P0268 P0270 P027 Injector faults e P0300 P0301 P0302 P0303 P0304 Misfire faults e P1301 P1302 Misfire faults causing emission or catalyst damage Monitor e Continuous until the test is either passed or failed Potential failure modes e Check and rectify any pre catalyst sensor fault code as they may be causing the fault code to be set e Catalyst damage leak inefficiency 2 Delayed Response Set when the sensor fails to switch between 300mV and 600mV within a specified time of the pre cat O2 sensor switch Enable Criteria e E
32. above conditions are not meet Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 2 Fuel level sensor A2 48 Way Right 3 Fuel level sensor ground K3 48 Way Right P0462 P0463 Monitor e Continuous Enable Criteria e Engine Running Disable Criteria e None Malfunction Criteria P0462 Voltage lt 0 020V e P0463 Voltage gt 0 684V for 1 5 secs Potential failure modes e Sensor open or short circuit e Fuel level sensor Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips Engine Cooling Fan Control P0480 Fan 1 Control Circuit P0481 Fan 2 Control Circuit Component connections Sensor Connector Description ECU Pin Fan Relay Slow Fi Fan Relay Fast E2 Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Potential failure modes e Wiring harness problem e Relay ECU Diagnostic Mask P0480 P0481 ECU Connector 48 Way Right 48 Way Right e The service light will be illuminated for 30 seconds at the point the fault occurs and then illuminated for 30 seconds after engine start if the fault is present Vehicle Speed Sensor P0500 P0500 Vehicle Speed Sensor A Description This input to the ECU is from the ABS module via CAN Monitor e Continuous Enable Criteria e Following conditions must occur for 5 seconds Engine speed gt 1800rpm and lt 5010rpm e
33. agnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0141 Monitor e Continuous Enable Criteria e Engine run time gt 20 seconds Disable Criteria e None Malfunction Criteria e Set when the heater output is greater than 1900mA or less than 250mA for 1 5 seconds for 40 con secutive checks Potential failure modes e Sensor connector and wiring should be checked for corrosion and loose connections Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips Fuel Control System Too Lean Or Rich P0171 P0172 P0171 System Too Lean P0172 System Too Rich Description The oxygen sensor sends a signal to the ECU corresponding to the exhaust gas oxygen content enabling the ECU to maintain a 14 7 1 air fuel ratio under normal driving conditions The ECU can make fuel corrections of 30 to the calculated fuel demand This value is then learned by the ECU over time If the ECU determines a rich condition exists oxygen sensor above 450mV it will decrease the calculated fuel demand to maintain a 14 7 1 ratio If the ECU determines a lean condition exists oxygen sensor below 450mV it will increase the calculated fuel demand to maintain a 14 7 1 ratio Monitor e Continuous Enable Criteria e Fuel Trim condition enabled e Closed loop fuelling enabled e MAF lt 18 g sec e Altitude lt 8000 ft 2438 m Baro gt 756 mbar Disable Cr
34. ay Left 06 M Y in brackets 3 5V V Ref 55 M4 28 Way Left Purge Canister Closure Valve Connector Pins Description ECU Pin ECU Connector A Battery Voltage E B ECU ground 9 H2 52 Way Left 06 M Y in brackets Purge Solenoid Connector Pins Description ECU Pin ECU Connector A Battery Voltage B ECU ground 38 F4 52 Way Right 06 M Y in brackets Enable Criteria Altitude lt 8000 ft 2438 m Baro gt 700 mbar Coolant gt 45 C 113 F e Air temp lt 80 C 176 F e Fuel level between 8 35 litres 2 1 9 24 US gallons e Vehicle must be stationary e Closed loop fuelling control enabled e Closed loop idle speed control enabled e Ignition on Disable Criteria P0171 P0172 Fuel trim too rich or lean soft code P0441 P0444 P0445 Purge faults P0446 P0447 P0448 Canister closure faults P0451 P0452 P0453 Tank Pressure sensor faults P0461 P0462 P0463 Fuel level sensor faults P0500 Vehicle speed faults Malfunction Criteria P0441 This code can be caused by the purge value being either stuck closed or open Purge valve stuck open A purge valve that is unable to seal correctly will result in a tank evacuation during the sealing phase of the leak check sequence In this phase a pressure rise would normally be expected but when the purge valve is not sealing this causes depression in the tank When the pressure is below 1 7mbar a purge valve fault is detect
35. ble Criteria None Potential failure modes e P0117 signal short circuit e P0118 signal open circuit e Sensor failure P0117 Enable Criteria Engine running Disable Criteria None Potential failure modes e Signal short circuit Coolant Temperature 40 C 104 F lt 0 029 V e Sensor failure P0118 Enable Criteria Engine running Disable Criteria None Potential failure modes e Signal open circuit Coolant Temperature gt 140 C 284 F gt 4 892 V e Sensor failure Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J page DI 39 to DI 45 Throttle Position P0121 P0122 P0123 P0121 Throttle Position Sensor A Circuit Range Performance P0122 Throttle Position Sensor A Circuit Low P0123 Throttle Position Sensor A Circuit High Description The Throttle Position Sensor TPS is a potentiometer device which is connected to a 5V reference source a ground and an input signal to the ECU Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Ground 34 D1 52 Way Right 2 5V Ref 8 M4 52 Way Right 06 M Y in brackets 3 TPS1 Signal 20 D3 52 Way Right 4 TPS2 Signal E3 Right Sensor characteristics 0 0 595V 5 100 4 148 V 5 Monitor Continuous P0121 Enable Criteria Rationality check throttle not too high at l
36. cates action taken by the ECU and will always be accompanied by another code which has caused this action Throttle Actuator Control Module Processor P2107 Description The ECU contains two processors dedicated to the throttle pedal and throttle valve potentiometers Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes ECU internal fault Incorrect ECU programming Throttle Actuator Control Module Performance P2108 Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes ECU internal failure Short circuit to throttle actuator Pedal Position Sensor D Circuit Low P2122 Description Two potentiometers are built into the throttle pedal unit in order to provide a throttle demand signal to the ECU Note that the potentiometers operate on 5 volts Enable Criteria None Disable Criteria None Potential failure modes Signal short circuit lt 0 283 V Reference voltage open circuit Reference voltage short to ground Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied Pedal Position Sensor D Circuit High P2123 Enable Criteria None Disable Criteria None Potential failure modes Signal open circuit gt 4 487 V Reference voltage open circuit Reference voltage short to ground
37. ced or System Performance P0015 Camshaft Position Exhaust Timing Over Retarded Description The Variable Valve Timing system VVT on the intake camshafts and the exhaust camshafts can vary the timing by approximately 35 on exhaust and 53 on inlet The camshaft relative position is varied by a system of vanes mounted on the drive end of the camshaft Each VVT oil control valve modulates a spool valve position in accordance with the drive signal duty cycle this in turns controls the oil pressure applied to the vanes A50 duty cycle applied to the valve will hold the valve current timing by preventing oil flow from the VVT controller housing a duty cycle less than 50 will retard the valve timing a duty cycle greater then 50 will advance the valve timing The ECM regulates this duty cycle based on the feedback signal from the respective camshaft position sensor to optimise the camshaft timing Component connections Sensor Connector Description ECU Pin ECU Connector 1 Battery Voltage 2 VVT Control Valve Inlet B2 48 Way Centre 1 Battery Voltage 2 VVT Control Valve Exhaust A2 48 Way Centre P0011 P0012 P0014 P0015 Monitor Continuous Enable Criteria Engine running gt 30 secs Coolant temperature gt 60 C 140 F Disable Criteria P0116 P0117 P0118 Coolant temperature fault codes Malfunction Criteria VVT error gt 5 degrees for time gt 2 5 secs Potential failure modes S
38. cking not fully closing prior to 06 M Y e Connector wiring corroded or loose connections prior to 06 M Y e Throttle linkage cable binding prior to 06 M Y e Induction system air leak e Excessive engine load from front end accessory drive system e g water pump seizing Notes The MIL will be illuminated if the fault is present for 2 consecutive trips Battery Voltage P0562 P0563 P0562 System Voltage Low P0563 System Voltage High Monitor Continuous Enable Criteria e Engine running e P0562 Voltage Too Low lt 10V e P0563 Voltage Too High gt 16V Disable Criteria None Potential failure modes e Alternator fault e Battery fault Notes The MIL will be illuminated if the fault is present for 2 consecutive trips ECU Integrity P0601 P0606 P0601 Checksum P0606 Watchdog Description These codes are used by the ECU to check the integrity of the software and calibration data P0601 checks that on power up the checksum for calibration data is the same as checksum saved on power down P0606 checks the watchdog timer after a defined period to see if it has reset If the watchdog timer has not reset then the code has entered an unplanned loop or condition stopping it resetting the timer Monitor e P0601 at ECU power up e P0606 continuously while the engine running Notes The MIL will be illuminated if the fault is present for 2 consecutive trips Fuel Pump P0627 P0627 Fuel Pump Cont
39. communication with ECM PCM B Valvematic controller Description In addition to the continuously variable valve timing VVT the VALVEMATIC system continuously changes the amount of intake valve lift and duration The VALVEMATIC and electronic throttle control ETC systems operate cooperatively to control intake air volume by controlling the amount of intake valve lift and throttle valve opening Component connections Valvematic control unit is connected to the engine management system over CAN bus P1045 Monitor e Continuous Enable Criteria e Ignition on Time gt 100ms Disable Criteria e None Malfunction Criteria e Driver current short circuit to battery Drive current gt 4 5A e short circuit to ground Drive current lt 100UA open loop voltage over 3V Potential failure modes e Open or short in continuously variable valve lift controller assembly circuit e ECM Diagnostic Mask The MIL light will be on when fault is present P1046 Monitor e Continuous Enable Criteria e Engine running e Time gt 200msec Disable Criteria e U0115 Malfunction Criteria Valvematic ECU detected difference between target amp actual valvematic angle e Crank angle duration differs by requested duration by 22 deg crank angle or more On board hardware detection Potential failure modes e Continuously variable valve lift controller assembly Camshaft housing Diagnostic Mask e The MIL will be il
40. could trigger fault A C Evaporator temperature sensor P0537 P0538 P0537 A C Evaporator temperature sensor circuit low P0538 A C Evaporator temperature sensor circuit high Description The A C system incorporates an evaporator temperature sensor for system control This is a thermistor device that changes resistance with temperature As the evaporator temperature decreases the thermistor resistance value increases and conversely as the evaporator temperature increases so the thermistor resistance value decreases Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Sensor signal A3 48 Way Right 1 Sensor ground K3 48 Way Right Monitor e Continuous Enable Criteria e Vehicle Running Disable Criteria e None Malfunction Criteria e P0537 Signal voltage lt 0 049V for 1 5 seconds e P0538 Signal voltage gt 4 399V for 1 5 seconds Potential failure modes e Thermistor wiring open circuit or shorted e Thermistor fault Diagnostic Mask e The service light will be illuminated for 30 seconds at the point the fault occurs and then illuminate for 30 seconds after engine start if the fault is present Battery Voltage P0562 P0563 P0562 System Voltage Low P0563 System Voltage High Description With a battery and alternator functioning as normal the system voltage for a running engine should be around 14V The ECM monitors this and will diagnose if the voltage is too high or too low Mon
41. d result in faster engine speed than commanded by the pedal the actuator is switched out allowing the throttle valve to default to a 6 mechanically sprung setting This provides a fast idle speed which may be used to effect a limp home mechanism Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Potential failure modes e Electronic throttle fault Note This code indicates action taken by the ECU and will always be accompanied by another code which has caused this action Throttle Actuator Control System Forced Engine Shutdown P2105 Throttle actuator control system forced engine shutdown Description If a problem is detected which could result in engine speed runaway or if sufficient control of engine speed is lost the ECU switches off the fuel injectors in order to stop the engine Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Potential failure modes e Electronic throttle fault Note This code indicates action taken by the ECU and will always be accompanied by another code which has caused this action Throttle Actuator Control System Forced Limited Power P2106 P2106 Throttle actuator control system forced limited power Description If a problem is detected which could result in engine speed control difficulties the ECU will limit throttle opening to a maximum of 15 Monitor e Continuous Enable Criteria e E
42. des the Vehicle Identification Number VIN If anew ECM has been fitted this operation is performed using the Lotus TechCentre tool Monitor e During start up Enable Criteria e Engine running for up to 4 seconds Disable Criteria e None Potential failure modes VIN not programmed Diagnostic Mask e The MIL will be illuminated if fault is present Throttle Actuator Control Range Performance P0638 P0638 Throttle actuator control range performance Description The single throttle butterfly valve mounted at the inlet to the intake plenum is operated by a stepper motor under the command of the engine ECU The valve moves through a range of nearly 90 and should display 100 at full throttle and around 2 at idle Monitor e Continuous Enable Criteria 1 e Engine running Disable Criteria 1 Electronic throttle fault P2135 P0122 P0123 P0222 or P0223 present Throttle demand transient condition Malfunction Criteria 1 e TPS error gt 3 for 7 5 secs Enable Criteria 2 e Ignition on Disable Criteria 2 e Electronic throttle fault P2135 P0122 P0123 P0222 or P0223 present Malfunction Criteria 2 e Throttle not able to find closed position during boot Potential failure modes e Blocked throttle body Damage to throttle actuator Diagnostic Mask e The MIL will be illuminated if fault is present Notes A mechanically sprung 7 throttle opening may be imposed Variable intake manifold c
43. e High Watchdog Checksum Fuel Pump Control Circuit Open A C Clutch Relay Control Circuit Low A C Clutch Relay Control Circuit High Misfire level causing emissions increase Misfire level causing catalyst system damage Coolant Pump Control Circuit Low Coolant Pump Control Circuit High A Rocker Arm Actuator System Performance or Stuck Off A Rocker Arm Actuator System Stuck On A Rocker Arm Actuator Control Circuit Low A Rocker Arm Actuator Control Circuit High When applicable reference may be made under the Notes heading to a page in the Toyota service manual This information should be used only for diagnosis and connection detail of the sensor The Elise Exige uses a Lotus ECU the connections for which may be found in circuit diagrams in Section MP Diagnostic Trouble Codes should be read using a Lotus Scan tool TOOOT 141 8F For 2006 M Y Trouble Codes see Section EMP 6 Camshaft Timing Control VVT P0011 P0012 P0076 P0077 P0011 Camshaft Position Timing Over Advanced or System Performance P0012 Camshaft Position Timing Over Retarded P0076 Intake Valve Control Solenoid Circuit Low P0077 Intake Valve Control Solenoid Circuit High Description The Variable Valve Timing system VVT on the intake camshaft can vary the timing by approximately 25 The camshaft relative position is varied by a system of vanes mounted on the drive end of the camshaft The VVT oil control valve modulates a spool valve posi
44. e modes e P0617 Crank relay wiring shorted to 12V e Crank relay failure e Immobiliser failure e ECU output circuit failure Diagnostic Mask e The service light will be illuminated for 30 seconds at the point the fault occurs and then illuminate for 30 seconds after engine start if the fault is present Fuel Pump Relay P0628 P0629 P0628 Fuel Pump A Control Circuit Low Voltage P0629 Fuel Pump A Control Circuit High Voltage Description The fuel system is of the non return type The fuel pump is incorporated into the fuel tank module which also contains the level sensor fuel pressure regulator and vapour pressure sensor The ECM controls the fuel pump operation via a relay because of this the only fault diagnosis is of the fuel pump relay Component connections Relay connector Description ECU Pin ECU Connector 1 Rear ignition relay fuse R1 2 Fuel pump relay control H2 48 Way Right Monitor e Continuous Enable Criteria e Ignition on Disable Criteria e None Potential failure modes e P0628 fuel pump relay wiring open circuit or shorted to ground e P0628 fuse R1 P0629 fuel pump relay wiring shorted to 12V e Fuel pump relay failure e ECU output circuit failure Diagnostic Mask e The MIL will be illuminated immediately if a fault is present VIN Not Programmed or Incompatible ECU PCM P0630 Vin not programmed or incompatible Description The ECM programming process inclu
45. e scanner When charging the printer it is most important that the inverter is NOT used or damage to the trans former may be caused Incorrect connection is possible only with the early type adaptor lead with which extra care should be exercised 1 Reading data from vehicle Data Link Connector DLC Scan tool front of passenger footwell Printer For instructions on how to use Lotus 3 Scan Tool on a Pre 08MY vehicle to identify Current EMS programs stored within the ECU or to download new EMS programs and write the correct VIN to the ECU please see information in section EMP 8 2 Downloading software from P C With early type adaptor lead Connect to COM Power port on PC supply transformer Adaptor lead used to connect to transformer With later type adaptor Connect to COM port on PC Power supply transformer Power supply adaptor T000T1436F 3 Charging printer Power supply transformer Do NOT use adaptor lead for this application Printer em192b m Page 44 Lotus TechCentre 2008 model year All USA market cars from 08 model year onwards are required by legislation to use a CAN compliant on board diagnostic system This has been commonised for all Elise Exige models The Lotus Scan 3 tool is replaced by a stand alone lap top PC loaded with Lotus TechCentre software to allow the CAN based serial data to be read Controller Area Network
46. ector 1 25 J1 52 Way Right 2 51 K4 52 Way Right 06 M Y in brackets 3 14 K3 52 Way Right 4 40 K2 52 Way Right Malfunction Criteria The operation of all the injector codes is the same the last digit relates to the injector involved i e a code P0203 indicates there is a problem with injector number 3 Enable Criteria Engine running Monitor Continuous Limp home e Limit maximum engine speed to 6000rpm e Return the fuel system to open loop fuel control Potential failure modes Sensor connector or wiring corroded or loose connections Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips e Ifan injector goes short circuit it is likely that the ECU injector driver will be damaged Misfire P0300 P0301 P0302 P0303 P0304 P0300 Random Multiple Cylinder Misfire Detected P0301 Cylinder 1 Misfire Detected P0302 Cylinder 2 Misfire Detected P0303 Cylinder 3 Misfire Detected P0304 Cylinder 4 Misfire Detected Description A misfiring cylinder can be detected by analysing crank speed variation As a result of a combustion event there will be a net acceleration of the crankshaft Subsequent to a misfire event the engine will decelerate over the period following the missed cylinder event Speed changes can be characterised by observing changes in the time period for a fixed angle of rotation after firing events A significant change in this period assessed by comparison to previous pe
47. ed Purge valve stuck closed A purge valve that is unable to open will not be able to achieve the required depression during the evacuation phase A positive pressure rise during the leak check evacuation phase will be detected Additional purge checks will set a purge valve fault code Monitor Until leak check is completed P0442 This code is set during the evaporative leak check process if the system calculates the measure of leak is above a specified value determined by a table related to fuel level after the 6 3 second timer has expired Monitor Until leak check is completed Potential failure modes e Leak from pipes or connections e Leaking or damaged seal on filler cap not fitted correctly e Canister Closure valve not fully closing P0455 This code is set if during the evaporative leak check the system fails to reach the evacuation target pressure The system will perform additional purge checks to determine the nature of the problem The additional purge checks will also run if the leak check fails to complete because the calculated vapour concentration is above the limit Additional Purge Check Enable Criteria e Vehicle not stationary e Load between 30 35 e Purge value gt 75 Monitor Until leak check is completed Potential failure modes e Fuel filler cap not fitted e Leak from pipes or connections e Canister Closure valve stuck open P0456 This code is set during the evaporative leak check proce
48. ed ECM or EMS program e Connect the Scan Tools harness into the vehicles Data Link Connector DLC located at the front of the passenger footwell and turn on the vehicles ignition and then follow the on screen instructions Siep 1 From the main menu select 1 Lotus Vehicles Step 2 From main operations select 1 for Elise 2 for Exige Step 3 From main operations Select 3 Elise 04MY on Select 2 Exige 04MY on i IMPORTANT Step 4 From main operations select 3 Elise 2ZZ GE Elise only Compare the Program ID1 with those shown on Omitec Library located on the Dealer Portal Only download a new program to the ECM if the main number displayed on the Scan Tool is a recognised Lotus program Caution Overwriting a non Lotus program may cause running issues and the ECM s non original program cannot be restored Step 5 From main operations select 1 Engine Data Then follow on screen instructions Step 6 From main operations Select 7 View Program ID s Lotus Service Notes Section EMP Downloading an EMS program Step 6 Follow the on screen instructions Confirm the program by pressing V button Follow on screen instructions and wait for download Step 7 Select V F aie LOTUS SCAN 3 O D O ooo Step 1 From the main menu select 1 Lotus Vehicles Step 9 From main operations select 1 Engine Data Step 2 From main
49. ensor connector and wiring should be checked for corrosion and loose connections Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 53 to DI 62 O2 Sensor Post Catalyst P0137 P0138 P0139 P0140 P0141 P0137 O2 Sensor Circuit Low Voltage P0138 O2 Sensor Circuit High Voltage P0139 O2 Sensor Circuit Slow Response P0140 O2 Sensor Circuit No Activity Detected P0141 O2 Sensor Heater Circuit Description The oxygen sensor monitors the oxygen content in the exhaust gases The sensor consists of a zirconia elec trode between two platinum plates When zirconia comes into contact with oxygen it becomes an electrical conductor The exhaust gases passes through louvers in the sensor One plate is in contact with the outside air and the other plate is in contact with the exhaust gases The platinum plate in contact with the air is electrically negative due to the oxygen in the atmosphere and the plate in contact with the exhaust gases is electrically positive This will cause a difference in electrical potential to develop between the two plates Thus the voltage across the platinum plates ranges approximately from 100 millivolts to 900 millivolts depending on the oxygen content of the exhaust gases Thus when the air fuel mixture is rich the oxygen sensor output will be high If the air fuel mixture
50. ential fuel injection control and to determine camshaft position for the VVT system The inlet camshaft has three teeth spaced 90 apart which are detected by the electromagnetic sensor The valve timing setting is measured in the ECU by measuring time from a fixed position crankshaft tooth to a variable position camshaft tooth As the engine speed and the position is known from the crankshaft sensor signal the camshaft position can be calculated Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Signal VR Input 16 C1 52 Way Right 06 M Y in brackets 2 Ground 42 E2 52 Way Right Monitor Continuous Enable Criteria e Engine running e Engine speed gt 600rpm Disable Criteria None Potential failure modes e Sensor signal open circuit or short to ground e Sensor ground open circuit e Sensor failure Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found in Toyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 84 to DI 85 Ignition System P0351 P0352 P0353 P0354 P0351 Ignition Coil A Primary Secondary Circuit P0352 Ignition Coil B Primary Secondary Circuit P0353 Ignition Coil C Primary Secondary Circuit P0354 Ignition Coil D Primary Secondary Circuit Description A Direct Ignition System DIS is used on the engine The DIS improves the ignition accuracy reduces high
51. fter each cold engine start and monitors the rate of temperature rise during warm up relative to the measured engine air flow Monitor Continuous Enable Criteria e Engine running e Coolant Temperature gt 10 C 14 F e Coolant Temperature lt 70 C 158 F Disable Criteria P116 P117 P118 Engine Coolant Temperature sensor faults Potential failure modes Thermostat failure Notes The MIL will be illuminated if the fault is present for 2 consecutive trips O2 Sensor Pre Catalyst P0131 P0132 P0133 P0134 P0135 P0131 O2 Sensor 1 Circuit Low Voltage P0132 O2 Sensor 1 Circuit High Voltage P0133 O2 Sensor 1 Circuit Slow Response P0134 O2 Sensor 1 Circuit No Activity Detected P0135 O2 Sensor 1 Heater Circuit Description The oxygen sensor monitors the oxygen content in the exhaust gases The sensor consists of a zirconia elec trode between two platinum plates When zirconia comes into contact with oxygen it becomes an electrical conductor The exhaust gases pass through louvers in the sensor One plate is in contact with the outside air and the other plate is in contact with the exhaust gases The platinum plate in contact with the air is electrically negative due to the oxygen in the atmosphere and the plate in contact with the exhaust gases is electrically positive This will cause a difference in electrical potential to develop between the two plates Thus the voltage across the platinum plates ranges approx
52. g normally the front oxygen sensor will be switching between rich and lean whilst the rear oxygen sensor should also be switching between rich and lean but more slowly When both the oxygen sensor waveforms change at the same rate it indicates that the catalyst performance has deteriorated The ECU counts the number of pre and post catalyst oxygen sensor switches and divides one by the other to determine a ratio number If the ratio number is greater than 0 6 06 M Y 0 165 the code is set Sensor connections Pre catalyst oxygen sensor Sensor Connector Description ECU Pin ECU Connector 1 Signal 15 A3 52 Way Left 2 Ground 41 F4 52 Way Left 06 M Y in brackets 3 Heater Supply 1 K3 52 Way Left 4 Battery Voltage s E Post catalyst oxygen sensor Sensor Connector Description ECU Pin ECU Connector 1 Signal 3 B3 52 Way Left 2 Ground 29 F4 52 Way Left 06 M Y in brackets 3 Heater Supply 27 H3 52 Way Left 4 Battery Voltage Malfunction Criteria e Closed loop fuel control enabled e Coolant temperature gt 60 C 140 F e Baro gt 756 mbar e Vehicle speed lt 130 km h 81 mph e MAF lt 40 g sec e Air inlet temp gt 10 C 14 F Disable Criteria P0101 P0102 P0103 MAF faults P0107 P0108 MAP Baro Faults P0116 P0117 P0118 Coolant temperature faults P0131 P0132 P0133 P0134 P0135 P0137 P0138 P0139 P0140 P0141 Oxygen sensor faults P0171 P0172 Fuelling faults
53. gh P2127 Pedal position sensor E circuit low P2128 Pedal position sensor E circuit high P2135 Throttle position sensor switch A B voltage correlation P2138 Pedal position sensor switch D E voltage correlation Connector Description ECU Pin 1 Reference voltage E circuit F3 2 Reference voltage D circuit F3 3 Pedal D position sensor signal B4 4 Ground D circuit K4 5 Ground E circuit K4 6 Pedal E position sensor signal A4 Pedal Position Sensor D Circuit Low P2122 Pedal position sensor D circuit low Description Two potentiometers are built into the throttle pedal unit in order to provide a throttle demand signal to the ECU Note that the potentiometers operate on 5 volts Enable Criteria None Disable Criteria e None Potential failure modes e Signal short circuit lt 0 283 V e Reference voltage open circuit e Reference voltage short to ground e Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied Pedal Position Sensor D Circuit High P2123 Pedal position sensor D circuit high Enable Criteria e None Disable Criteria e None Potential failure modes e Signal open circuit gt 4 487 V e Reference voltage open circuit P2122 P2123 P2127 P2128 P2135 P2138 ECU Connector 48 Way Right 48 Way Right 48 Way Right 48 Way Right 48 Wa
54. her information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 79 to DI 81 Engine Speed Position Sensors P0335 P0335 Crankshaft Position Sensor A Circuit Range Performance Description Engine speed is calculated by measuring the time between the teeth of the crankshaft sensor trigger disc The disc has 34 teeth and 2 missing teeth spaced at 10 degree intervals around the disc The 2 missing teeth are positioned at 225 degrees before cylinder No 1 and 4 TDC The crankshaft sensor signal is also used to determine misfires events Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Sensor input 4 E1 52 Way Right 06 M Y in brackets 2 Ground 30 E4 52 Way Right Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes e Sensor signal open circuit or short to ground e Sensor ground open circuit e Sensor failure Notes e If a sensor or sensor circuit failure occurs the engine will not fire or start e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 82 to DI 83 Engine Speed Position Sensors P0340 P0340 Camshaft Position Sensor A Circuit Description The camshaft position input to the ECU is used to determine engine phase enable sequ
55. icates a mechanical timing error such as incorrectly set or jumped cam timing Enable Criteria Engine running for up to 4 seconds Disable Criteria None Potential failure modes Crankshaft Camshaft alignment Throttle Position Sensor B Circuit Low P0222 Description Two potentiometers are built into the throttle valve actuator unit in order to provide a throttle position signal to the ECU Note that the sensors operate on 5 volts Enable Criteria None Disable Criteria None Potential failure modes Signal short circuit lt 0 283 V Reference voltage open circuit Reference voltage short to ground Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied Throttle Position Sensor B Circuit High P0223 Enable Criteria None Disable Criteria None Potential failure modes Signal open circuit gt 4 487 V Reference voltage open circuit Reference voltage short to ground Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied VIN Not Programmed or Incompatible ECU PCM P0630 Description The ECM programming includes the Vehicle Identification Number VIN This operation is performed using the Lotus Scan tool Enable Criteria Engine running
56. imately from 100 millivolts to 900 millivolts depending on the oxygen content of the exhaust gases Thus when the air fuel mixture is rich the oxygen sensor output will be high If the air fuel mixture is lean the oxygen sensor output will be low Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Signal 15 A3 52 Way Left 2 Ground 41 F4 52 Way Left 06 M Y in brackets 3 Heater 1 K3 52 Way Left 4 Battery Voltage Sensor characteristics Normal operating range is 0 1000mV Malfunction Criteria P0131 Set when the sensor operates below 5mV for more than 1 5 seconds consecutively for a specified number of times Monitor Continuous Disable Criteria DFCO Deceleration Fuel Cut Off Potential failure modes e Low fuel pressure Lean mixture e Malfunctioning sensor e External water on sensor e Sensor wire shorted to ground P0132 Set when the sensor operates above 1200mV for more than 1 5 seconds consecutively for a specified number of times Monitor Continuous Potential failure modes e High fuel pressure Rich mixture e Leaking or shorted injector e Purge valve fault e Oxygen sensor contamination e Engine oil contamination e Sensor wire P0133 Set when the sensor fails to switch from a Lean to a Rich condition or switch from a Rich to a Lean condition in a sufficiently timely manner A selection of switches is used to determine the average times Enable Criteria
57. ion See P0122 for sensor pin inputs Description Two potentiometers are built into the throttle actuator unit in order to provide a throttle position signal to the ECU Two processors within the ECU compare the two output signals which should match within a defined tolerance Note that the potentiometers operate on 5 volts Enable Criteria e None Disable Criteria e Throttle position greater than 60 Potential failure modes e TPS1 A reading incorrectly e TPS2 B reading incorrectly Notes A maximum throttle opening of 15 may be imposed Pedal Position Sensor Switch D E Voltage Correlation P2138 P2138 Pedal position sensor switch D E voltage correlation Description Two potentiometers are built into the throttle pedal unit in order to provide a throttle demand signal to the ECU Two processors within the ECU compare the two output signals which should match within a defined tolerance Note that the potentiometers operate on 5 volts Enable Criteria e None Disable Criteria e None Potential failure modes e PPS1 D reading incorrectly e PPS2 E reading incorrectly Notes A maximum throttle opening of 15 may be imposed m PE SSS Throttle Actuator Control System High Airflow Detected P2173 P2173 Throttle actuator control system high airflow detected Description The mass air flow is compared with the throttle position to determine whether an incorrect correlation exists Enable
58. ion Valvematic Driver Internal Circuit Malfunction ECU Detected Difference Between Target and Actual Valvematic Angle Manifold Absolute Pressure Circuit Low Input Manifold Absolute Pressure Circuit High Input Misfire level causing emissions increase Misfire level causing catalyst system damage VM Actuator Position sensor circuit Throttle Actuator Circuit Open Throttle Actuator Control Motor Circuit Low Throttle Actuator Control Motor Circuit High Throttle Actuator Control System Forced Idle Throttle Actuator Control System Forced Engine Shutdown Throttle Actuator Control System Forced Limited Power mms PAGE 59 DT Fault Description Page P2107 Throttle Actuator Control Module Processor 122 P2108 Throttle Actuator Control Module Performance 123 P2119 Throttle Actuator Control Throttle Body Range Performance 124 P2122 Pedal Position Sensor 1 Low Input 125 P2123 Pedal Position Sensor 1 Hi Input 125 P2127 Pedal Position Sensor 2 Low Input 126 P2128 Pedal Position Sensor 2 Hi Input 126 P2135 Throttle Position Sensors Correlation 127 P2138 Pedal Position Sensors Correlation 128 P2173 Throttle Actuator Control System High Airflow Detected 129 P2612 A C Refrigerant Distribution Valve Control Circuit Low 130 P2613 A C Refrigerant Distribution Valve Control Circuit High 130 P2646 A Rocker Arm Actuator System Performance or Stuck Off 112 P2647 A Rocker Arm Actuator System Stuck On 113 P2648 A Rocker Arm Actuato
59. ion crankshaft tooth to a variable position camshaft tooth As the engine speed and the position is known from the crankshaft sensor signal the camshaft position can be calculated Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Inlet Bank 1 Signal A3 32 Way Left 2 Inlet Bank 1 Ground B3 32 Way Left 3 Supply voltage 5V D1 32 Way Left 1 Exhaust Bank 1 Signal D4 32 Way Left 2 Exhaust Bank 1 Ground C3 32 Way Left 3 Supply voltage 5V D1 32 Way Left Monitor e Continuous Enable Criteria e Engine running e Engine speed gt 600rpm e Engine runtime gt 4 secs Disable Criteria e None Malfunction Criteria e 15 revolutions of crankshaft without receiving camshaft signal Potential failure modes e Sensor signal open circuit or short to ground e Sensor ground open circuit e Sensor failure e Cam failure e Camshaft position plate ECU Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips Notes Fault code P0341 will also be generated if the vehicle fails security checks on start up Ignition System P0351 P0352 P0353 P0354 P0351 Ignition Coil A Primary Secondary Circuit P0352 Ignition Coil B Primary Secondary Circuit P0353 Ignition Coil C Primary Secondary Circuit P0354 Ignition Coil D Primary Secondary Circuit Description A Direct Ignition System DIS is used on the engine The DIS improves the igni
60. ircuit P0661 P0662 P0661 Variable intake manifold circuit voltage low P0662 Variable intake manifold circuit voltage high Description This circuit activates a vacuum control solenoid which controls the variable intake manifold VIM and Air Intake Control Valve in response to changes in the engine speed and load in order to increase the intake efficiency When the engine speed is less than 4800 rpm and the engine load is greater than 50 the ECM turns on the solenoid valve to close the VIM and AICV Under all other conditions the VIM and AICV are usually off and the VIM and AICV are open Component connections Connector Description ECU Pin ECU Connector 1 Ignition supply fuse R6 2 Solenoid control valve control L4 48 Way Central Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Potential failure modes e P0661 VIM wiring open circuit or shorted to ground e P0661 Fuse R6 e P0662 VIM circuit ECM side shorted to battery voltage e VIM control valve failure e ECU output circuit failure Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips ECU Power Relay P0685 P0685 ECU Power Relay Open Circuit Description The ECU power is controlled by the main power relay The voltage at ECM pins RM2 RM3 RM4 is compared to ignition switch input RB1 to determine if the power relay is open circuit Monitor e Continuous Enable Cr
61. is lean the oxygen sensor output will be low The post catalyst oxygen sensor performance is a good indicator of catalyst efficiency Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Signal 3 B3 52 Way Left 2 Ground 29 F4 52 Way Left 06 M Y in brackets 3 Heater 27 H3 52 Way Left 4 Battery Voltage Sensor characteristics Normal operating range is 0 1000mV Malfunction Criteria P0137 Set when the sensor operates below 5mV for more than 1 5 seconds consecutively for a specified number of times Monitor Continuous Disable Criteria DFCO Deceleration Fuel Cut Off Potential failure modes e Check and rectify any pre catalyst sensor fault code as they may be causing the fault code to be set e Sensor wire shorted to ground e Catalyst P0138 Set when the sensor operates above 1200mV for more than 1 5 seconds consecutively for a specified number of times Monitor Continuous Potential failure modes e Check and rectify any front sensor fault code as they may be causing the fault code to be set e Catalyst P0139 Set when the sensor fails to reach 650mV after 1 9 seconds of P E or when the sensor fails to drop below 150mV after 5 seconds of DFCO 06 M Y Set when sensor fails to switch between 250mV and 650mV with sufficient rapidity Enable Criteria Engine run time gt 200 seconds Coolant temperature gt 60 C 140 F e Open loop fuel control e DFCO Decele
62. it has reset If the watchdog timer has not reset then the code has entered an unplanned loop or condition stopping it resetting the timer Monitor e P0601 at ECU power up e P0606 continuously while the engine running Diagnostic Mask e The MIL will be illuminated if a fault is present Variant Code Options Error P0610 P0610 Control Module Vehicle Variant Code Options Error Description The variant code is used by the ECU to determine the vehicle variant P0610 checks that on power up the variant code is set If anew ECM has been fitted the operation is performed using the Lotus TechCentre tool Monitor e P0610 at ECU power up Enable Criteria e Ignition on e Time gt 1sec Disable Criteria e None Potential failure modes e Variant code not programmed Diagnostic Mask e The MIL will be illuminated if a fault is present Crank Relay P0617 P0617 Starter relay circuit high Description When the ignition key is in the crank position battery voltage is applied to the start request input of the ECM The ECM will then energise the crank relay via the immobiliser to allow the starter motor to be engaged ECM diagnosis is only carried out on the crank relay Component connections Relay Connector Description ECU Pin ECU Connector 2 Main relay via fuse F13 4 Crank relay control G1 48 Way Right Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Potential failur
63. it maximum engine speed to 4800rpm e Return the fuel system of the affected bank to open loop fuel control Notes If an injector goes short circuit it is likely that the ECU injector driver will be damaged Misfire P0300 P0301 P0302 P0303 P0304 P0300 Random Multiple Cylinder Misfire Detected P0301 Cylinder 1 Misfire Detected P0302 Cylinder 2 Misfire Detected P0303 Cylinder 3 Misfire Detected P0304 Cylinder 4 Misfire Detected Description A misfiring cylinder can be detected by analysing crank speed variation As a result of a combustion event there will be a net acceleration of the crankshaft Subsequent to a misfire event the engine will decelerate over the period following the missed cylinder event Speed changes can be characterised by observing changes in the time period for a fixed angle of rota tion after firing events A significant change in this period assessed by comparison to previous peri ods may be attributed to misfire on a known cylinder Component connections Connector Description ECU Pin ECU Connector 1 Supply Voltage Coil1 Coil2 Coil3 Coil4 2 Ignition Coil Feedback D2 D2 D2 D2 32 Way Left 3 Coil Output Logic F4 F3 F2 F1 32 Way Left 4 Ground Malfunction Criteria The operation of all the misfire codes is the same the last digit relates to the misfire involved i e code P0303 indicates there is a problem with cylinder number 3 P0300 indicates the misfire is random and not linked to one particular cy
64. iteria e Engine running Disable Criteria None Potential failure modes e Fuse R7 e Relay open circuit Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips Brake Switch B Circuit P0703 P0703 Brake switch 1 Brake Switch Ground 2 Brake Switch Input D1 48 Way Right Clutch position sensor circuit P0806 P0807 P0808 P0806 Clutch position sensor circuit range performance P0807 Clutch position sensor circuit low P0808 Clutch position sensor circuit high Description The clutch position sensor is used to identify the position of the clutch engaged disengaged or slipping This information is used to control features such as fuel cut during gear changes cruise control deactivation and ensuring any torque increase requests from the ESP system only occur with the clutch engaged The ECM continuously monitors the clutch position sensor input for malfunctions Component connections Connector Description ECU Pin ECU Connector A Ground K3 48 Way Right B Clutch position sensor signal B1 48 Way Right C Reference voltage F4 48 Way Right P0806 Monitor e Continuous Enable Criteria e Maximum and minimum clutch position measured over 15 gear changes Disable Criteria None Malfunction Criteria e Voltage difference between maximum and minimum of less than 1 47 V Potential failure modes e Clutch sensor failure e Clutch pedal failure Diagnostic Mask
65. iteria P0171 amp P0172 e P0106 P0107 P0108 Baro sensor faults e P0131 P0135 Oxygen sensor faults e P0300 P0301 P0302 P0303 Misfire faults P0111 P0112 P0113 Intake air temperature faults Malfunction Criteria P0171 These codes will set when the relevant engine bank learned fuel correction has been increased to its maximum limit of 25 and the system still cannot maintain an air fuel ratio of 14 7 1 under normal driving conditions e These codes will also be set if the relevant bank fuel learn injector dead time is greater than 450 micro seconds Potential failure modes e Fuel Pressure too low restriction in fuel line e Air leak in induction system e Water in fuel e Exhaust leak crack before front oxygen sensor e Injector fault e Sensor connector and wiring for signs of corrosion or loose connections e MAF fault e Vehicle has previously run out of fuel Diagnostic Mask e The MIL will be illuminated if fault is present for two consecutive trips Malfunction Criteria P0172 These codes will be set when the relevant bank learned fuel correction has been decreased to its minimum limit of 25 and the system still cannot maintain an air fuel ratio of 14 7 1 under normal driving conditions e These codes will also be set if the relevant bank fuel learn injector dead time is less than 450 mi cro seconds Potential failure modes e Fuel pressure too high e Leaking fuel injector e Res
66. itor e Continuous Enable Criteria e Engine running Disable Criteria e None Malfunction Criteria e P0562 Voltage Too Low lt 10V for 10 seconds P0563 Voltage Too High gt 16V for 25 5 seconds Potential failure modes e Alternator fault e Battery fault Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips Cruise Control P0565 P0567 P0568 P0571 P0565 Cruise control on off signal P0567 Cruise control resume decal signal P0568 Cruise control set accel signal P0571 Brake switch A circuit Description Cruise control requests are made using a multi function switch input directly wired into engine control unit From this input the ECM determines the driver request In addition cruise control is cancelled by the application of either the brake pedal or the clutch pedal see also P0806 P0807 and P0808 Sensor connections Sensor Connector Description ECU Pin ECU Connector A Cruise control switch input Off Al 48 Way Right B Cruise control ground K3 48 Way Right C Cruise control switch input Resume Decease C3 48 Way Right D Cruise control switch input Set Increase E3 48 Way Right _ Brake Switch Ground Brake Switch Input C4 48 Way Right N P0565 P0567 P0568 Monitor e Continuous Enable Criteria e None Disable Criteria None Malfunction Criteria e P0565 Input other than OFF received for more than 100 seconds e P0567 In
67. ivity Detected Sensor 2 O2 Sensor Heater Circuit Sensor 2 System too Lean System too Rich Throttle Pedal Position Sensor Switch B Circuit Low Input Throttle Pedal Position Sensor Switch B Circuit High Input Cylinder 1 Injector Circuit Low Cylinder 1 Injector Circuit High Cylinder 2 Injector Circuit Low Cylinder 2 Injector Circuit High Cylinder 3 Injector Circuit Low Cylinder 3 Injector Circuit High Cylinder 4 Injector Circuit Low Cylinder 4 Injector Circuit High Random Multiple Cylinder Misfire Detected Cylinder 1 Misfire Detected Cylinder 2 Misfire Detected Cylinder 3 Misfire Detected Cylinder 4 Misfire Detected Knock Sensor 1 Circuit Low Input Knock Sensor 1 Circuit High Input Crankshaft Position Sensor A Circuit DTC P0341 P0351 P0352 P0353 P0354 P0366 P0420 P0444 P0445 P0462 P0463 P0480 P0481 P0500 P0506 P0507 P0537 P0538 P0562 P0563 P0565 P0567 P0568 P0571 P0601 P0606 P0610 P0617 P0628 P0629 P0630 P0638 P0661 P0662 P0685 P0703 P0806 P0807 P0808 P1045 P1046 P1047 P1049 P1055 P1107 P1108 P1301 P1302 P1645 P2100 P2102 P2103 P2104 P2105 P2106 Fault Description Camshaft Position Sensor A Circuit Range Performance Ignition Coil A Primary Secondary Circuit Ignition Coil B Primary Secondary Circuit Ignition Coil C Primary Secondary Circuit Ignition Coil D Primary Secondary Circuit Camshaft Position Sensor B Circuit Range Performance Catalyst Sy
68. l Level Sensor A Circuit High Description When the engine is running the ECU continuously monitors the fuel level sensor feedback signals The feedback signal should be low when turned ON and high when turned OFF The following codes will be set if the above conditions are not meet Sensor connections 06 M Y in brackets Sensor Connector Description ECU Pin ECU Connector 1 Vapour pressure and fuel level ground 78 L4 28 Way Left 2 Fuel level sensor 76 E3 28 Way Left 3 Vapour pressure amp fuel level V ref 55 M4 28 Way Left Enable Criteria e P0462 amp P0463 Condition not met as above P0461 Checks for three conditions stuck when full stuck when empty or stuck midway The ECU determines if the sensor is stuck by calculating the amount of fuel used during the test period with the engine conditions as listed below e RPM gt 2800rpm e Load gt 40 e Minimum Fuel level gt 2 litres 0 5 US gallons e Ifthe ECU calculates that no fuel has been used during these tests it indicates that the sensor is not work ing correctly The ECU also monitors the filtered and unfiltered signal at idle after a 10 second de slosh period and compares the differences Gear changes cause the fuel to slosh around so the ECU monitors the signal to see if there is any pressure rise Disable Criteria P0500 Wheel speed sensor fault Notes The MIL will be illuminated if the fault is present for 2 consecutive trips
69. le valve lift controller assembly Camshaft housing Diagnostic Mask e The MIL will be illuminated if fault is present P1645 Monitor e Continuous Enable Criteria e Ignition on e Time gt 200msec Disable Criteria e U0115 Malfunction Criteria e Valvematic Angle sensor open or short circuit Potential failure modes e Continuously variable valve lift controller assembly Diagnostic Mask e The MIL will be illuminated if fault is present P2646 Monitor e Continuous Enable Criteria e Ignition on Time gt 200msec Disable Criteria e U0115 Malfunction Criteria A rocker arm actuator system performance or stuck off e Actuator duty cycle is 80 or more e Actuator current is 10A or more e Stroke variation is 0 01mm or less over 0 016 seconds Potential failure modes e Continuously variable valve lift controller assembly e Camshaft housing Diagnostic Mask e The MIL will be illuminated if fault is present P2647 Monitor e Continuous Enable Criteria e Ignition on Time gt 200msec Disable Criteria e U0115 Malfunction Criteria A rocker arm actuator system performance or stuck on e Actuator duty cycle is 80 or more Actuator current is 10A or less e Stroke variation is 0 01mm or less over 0 016 seconds Potential failure modes e Continuously variable valve lift controller assembly e Camshaft housing Diagnostic Mask e The MIL will be illuminated if fa
70. linder Monitor e Continuous Enable Criteria e Battery voltage between 10 16 V e Coolant temperature between 10 120 C 14 248 F Engine speed between 630 8010rpm e Engine speed transient gt 15rpm Altitude lt 8000 ft 2438 m Baro gt 756mbar e Fuel level gt 5 litres 1 3 US gallons Engine load greater than 13 28 depending on engine speed Disable Criteria e DFCO enabled Deceleration Fuel Cut Off e Rough road e MAF faults Malfunction Criteria e Individual cylinder misfire in excess of 10 of total engine misfire e P300 set when more than one cylinder misfiring or when CAM error MIL requested Limp home depends on severity and number of cylinders affected Throttle limited and engine continues to run on all cylinders e Fuel system set to open loop control Potential failure modes e Injectors or related codes e VVT system clearance or timing or related codes e MAF meter or related codes e Connectors and wiring for signs of corrosion or loose connections e Spark plug coil cylinder compression e PCV system hoses e Fuel pressure e Coolant temperature sensor e Vacuum hoses ECU Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips Knock Control System P0327 P0328 P0327 Knock Sensor Circuit Low P0328 Knock Sensor Circuit High Description The knock sensor contains a piezoelectric element which generate
71. low rate and Intake Air Temperature IAT The MAF sensor uses a platinum hot wire and a cold wire element By control ling the current flow through the hot wire to maintain a constant temperature and therefore known resistance any change in air flow and therefore temperature will be detected by a change in resistance This change of resistance is the output signal from the sensor Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Battery Voltage 2 MAF Ground 31 D2 52 Way Right 3 MAF Signal 45 B4 52 Way Right 06 M Y in brackets 4 IAT Signal 44 B3 52 Way Right 5 IAT Ground 18 D2 52 Way Right Sensor characteristics 0 655 g sec Typical values 1 5 5 0 g sec idle 5 0 15 0 g sec 2500rpm elevated idle no load Monitor Continuous P0101 Enable Criteria e Engine running e Engine speed gt 2490rpm e TPS gt 80 P0101 MAPS too low e TPS lt 5 P0101 MAPS too high MAPS Mass Air Per Stroke Disable Criteria P0122 P0123 P0222 P0223 Throttle Pedal position fault codes Potential failure modes MAF sensor battery voltage open circuit MAF value g sec 0 0 e MAF sensor signal open circuit or short to ground MAF value g sec 0 0 MAF sensor ground open circuit MAF value g sec gt 229 0 P0102 Enable Criteria Engine running Disable Criteria None Potential failure modes e MAF sensor battery voltage open circuit MA
72. luminated if fault is present P1047 Monitor e Continuous Enable Criteria e Engine running e Valvematic operational Time gt 200msec Disable Criteria e U0115 Malfunction Criteria e Valvematic driver learned value error power source circuit malfunction Valvematic signals RAM error or Low Position Learn request On board hardware detection Potential failure modes e Continuously variable valve lift controller assembly power source circuit e Continuously variable valve lift controller assembly Diagnostic Mask e The MIL will be illuminated if fault is present P1049 Monitor e Continuous Enable Criteria e Engine running Time gt 200msec Disable Criteria e U0115 Malfunction Criteria e Valvematic driver internal circuit malfunction e Valvematic EDU fails Valvematic loses memory whilst in operational state Potential failure modes e Continuously variable valve lift controller assembly Diagnostic Mask e The MIL will be illuminated if fault is present P1055 Monitor e Continuous Enable Criteria e Engine running e Valvematic not in operational state e Time gt 500msec Disable Criteria e P1045 P1046 P1049 P1055 P1645 P2646 P2647 P2648 and P2649 Malfunction Criteria e ECU detected difference between target amp actual valvematic angle e Crank angle duration differs by requested duration by 22 deg crank angle or more Potential failure modes e Continuously variab
73. missions increase P1302 Misfire level causing catalyst system damage Description When the engine misfire reaches a high enough percentage the engine emission output levels can exceed the allowed limits this will produce the fault code P1301 If the misfire percentage is high enough and there is a possibility that the catalyst may be damaged then code P1302 will be set To prevent catalyst damage the ECM will take action to shut down the misfiring cylinder and the corresponding paired cylinder See misfire faults P0300 P0301 P0302 P0303 P0304 Monitor e Continuous Enable Criteria e Battery voltage between 10 16 V e Coolant temperature between 10 120 C 14 248 F Engine speed between 480 8010rpm e Engine speed transient gt 15rpm e Altitude lt 8000 ft 2438 m Baro gt 756mbar e Fuel level gt 5 litres 1 3 US gallons e Engine load greater than 14 25 depending on engine speed Disable Criteria e DFCO enabled Deceleration Fuel Cut Off e Rough road e MAF faults Malfunction Criteria e P1301 Emissions Failure Misfire percentage gt 5 6 measured over 1000 engine revolutions e P1302 Catalyst Damage Failure Misfire percentage gt 9 25 depending on engine speed and load measured over 200 engine revolutions Potential failure modes e Injector related codes as these can cause misfire codes to be set e VVT codes set e Sensor connector and wiring for signs of corrosio
74. n or loose connections e Spark plug cylinder compression e Cam timing damage to rocker arm assembly e Fuel pressure Diagnostic Masks e Fora P1301 fault code the MIL will be illuminated immediately e Fora P1302 fault code the MIL will be illuminated immediately and the ECM will take action to prevent catalyst damage Notes e Misfire learns are calculated during DFCO Deceleration Fuel Cut Off Throttle Actuator Control Motor Circuit Open P2100 P2100 Throttle actuator control motor circuit open Description The throttle actuator stepper motor operates on 12 volts Monitor e Continuous Enable Criteria e None Disable Criteria e None Potential failure modes e Throttle actuator control motor open circuit Throttle Actuator Control Motor Circuit Low P2102 P2102 Throttle actuator control motor circuit low Monitor e Continuous Enable Criteria e None Disable Criteria e None Potential failure modes e Throttle actuator control motor short to ground m PA llO Throttle Actuator Control Motor Circuit High P2103 Throttle actuator control motor circuit high Monitor e Continuous Enable Criteria e None Disable Criteria e None Potential failure modes e Throttle actuator control motor short to supply voltage P2103 Throttle Actuator Control System Forced Idle P2104 P2104 Throttle actuator control system forced idle Description If a problem is detected which coul
75. nated for 30 seconds at the point the fault occurs and then illuminate for 30 seconds after engine start if the fault is present Software Incompatible with VDCM U0316 U0316 Software Incompatible with VDCM Description The ECM checks that the Vehicle Dynamic Control Module VDCM matches the vehicle variant code If not the above code will be set and the ECM will not respond to torque requests from the VDCM Potential failure modes e The ECM has been programmed with an incorrect variant code which does not match vehicle VDCM level e VDCM error Diagnostic Mask e The service light will be illuminated for 30 seconds at the point the fault occurs and then illuminate for 30 seconds after engine start if the fault is present EMP 8 BASIC FUNCTIONS OF LOTUS SCAN 3 TOOL Identifyiing the ECU s current EMS program It is highly recommended that before carrying out any program downloads live vehicle data readings or sensor actuator testing that you identify the current EMS program stored within the ECU to confirm if the ECU is using an old level EMS program or if the EMS program stored either a standard production authorised Lotus Motorsport or non authorised program Preparation for identifying ECM program ID e Ensure the vehicles battery is fully charged e Visually inspect the vehicles ECM and see if any non production labels or stickers have been applied this may indicate that the vehicle may be running on either an unauthoris
76. nd J4 48 Way Centre 5 MAF Signal G1 48 Way Centre Sensor characteristics IAT 20 C 4 F 13 6 18 4 KQ IAT 20 C 68 F 2 21 2 69 KQ IAT 60 C 140 F 0 50 0 67 KQ P0112 Monitor e Continuous Disable Criteria None Enable Criteria e Engine running Malfunction Criteria e Inlet air temperature gt 119 C 246 F for time gt 1 5 secs Potential failure modes e Signal short circuit e Sensor failure Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0113 Monitor e Continuous Disable Criteria e None Enable Criteria e Engine running Malfunction Criteria e Inlet air temperature lt 40 C 40 F for time gt 1 5 secs Potential failure modes e Signal open circuit e Sensor failure Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips Engine Coolant Temperature P0116 P0117 P0118 P0116 Engine Coolant Temperature Circuit Range Performance P0117 Engine Coolant Temperature Circuit Low P0118 Engine Coolant Temperature Circuit High Description The engine coolant temperature sensor is a thermistor device which changes resistance with tempera ture As coolant temperature decreases the thermistor resistance value increases and conversely as coolant temperature increases so the thermistor resistance value decreases Sensor connections Sensor Connector Description ECU Pin E
77. ngine run time gt 200 seconds e Rich for gt 3 seconds prior to switch rich to lean e Pre Cat O2 sensor must be rich for gt 0 5 seconds before post cat O2 sensor switch e DFCO for rich to lean switch Disable Criteria P0116 P0117 P0118 Coolant Temperature Sensor faults e P0261 P0262 P0264 P0265 P0267 P0268 P0270 P0271 Injector faults e P0300 P0301 P0302 P0303 P0304 Misfire faults P1301 P1302 Misfire faults causing emission or catalyst damage Malfunction Criteria e 3 consecutive switch times gt 700 ms Monitor e Continuous until the test is either passed or failed Potential failure modes e Check and rectify any pre catalyst sensor fault code as they may be causing the fault code to be set e Catalyst damage leak inefficiency Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0140 Monitor e Continuous Enable Criteria Engine run time gt 30 seconds e Engine is not at idle e Engine is in closed loop fuel control e Oxygen sensors ready Disable Criteria e None Malfunction Criteria e Set when the sensor fails to switch above 600mV and below 322mV within 60 seconds Potential failure modes e Check and rectify any front sensor fault code as they may be causing the fault code to be set e Sensor connector and wiring should be checked for corrosion and loose connections e Catalyst e Gas leak in exhaust system Di
78. ngine running Disable Criteria None Potential failure modes e Electronic throttle fault Note This code indicates action taken by the ECU and will always be accompanied by another code which has caused this action Throttle Actuator Control Module Processor P2107 P2107 Throttle actuator control module processor Description The ECU contains two processors dedicated to the throttle pedal and throttle valve potentiometers Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Potential failure modes e ECU internal fault e Incorrect ECU programming Throttle Actuator Control Module Performance P2108 P2108 Throttle actuator control module performance Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Potential failure modes e ECU internal failure e Short circuit to throttle actuator m PA SSS Throttle Actuator Control Throttle Body Range Performance P2119 P2119 Throttle Actuator Control Throttle Body Range Performance Monitor e Continuous Enable Criteria e Ignition on Disable Criteria e None Malfunction Criteria e Throttle position does not close during start up e Throttle position stationary to within 0 01V over 10ms interval Diagnostic Mask e The MIL will be illuminated if fault is present Pedal Position P2122 Pedal position sensor D circuit low P2123 Pedal position sensor D circuit hi
79. nostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips Throttle Position P0122 Throttle Position Sensor A Circuit Low P0123 Throttle Position Sensor A Circuit High P0222 Throttle Position Sensor B Circuit Low P0223 Throttle Position Sensor B Circuit High Description The throttle position sensor TPS is mounted on the throttle body and detects the opening angle of the throttle valve The TPS has 2 sensor circuits each of which transmits a signal VTA1 and VTA2 VTA1 is used to detect the throttle valve angle and VTA2 is used to detect malfunctions in VTA1 The sensor signal voltages vary between 0 V and 5 V in proportion to the throttle valve opening angle and are transmitted to the VTA terminals of the ECU Sensor connections Sensor Connector Description ECU Pin OoaRWN ETB ve M1 ETB ve L2 Ground C4 TPS 1B Signal F3 TPS 1A BV Ref E4 TPS 1A Signal F2 Sensor characteristics Sensor 1A 0 0 69 V 5 100 3 87 V 5 Sensor 1B 0 2 25 V 5 100 4 94 V 5 Idle state is not 0 throttle position and is dependant upon coolant temperature P0122 Monitor e Continuous Enable Criteria None Disable Criteria None Malfunction Criteria e Signal voltage lt 0 635V Potential failure modes e Signal short circuit e Reference voltage open circuit e Reference voltage short to ground e Sensor failure Diagnostic Mask
80. o develop between the two plates Thus the voltage across the platinum plates ranges approximately from 100 millivolts to 900 millivolts depending on the oxygen content of the exhaust gases Thus when the air fuel mixture is rich the oxygen sensor output will be high If the air fuel mixture is lean the oxygen sensor output will be low The post catalyst oxygen sensor performance is a good indicator of catalyst efficiency Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Signal H1 48 Way Centre 2 Ground K4 48 Way Centre 3 Heater K2 48 Way Centre 4 Battery Voltage Sensor characteristics Normal operating range is 0 1000mV Malfunction Criteria P0137 Monitor e Continuous Enable Criteria e None Disable Criteria e DFCO Deceleration Fuel Cut Off AE DE Acceleration Enrichment or Deceleration Enleanment e Misfire Malfunction Criteria e Setwhen the sensor operates below 24mV for more than 1 5 seconds consecutively for a specified number of times Potential failure modes e Check and rectify any pre catalyst sensor fault code as they may be causing the fault code to be set e Sensor wire shorted to ground e Catalyst Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips P0138 Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Malfunction Criteria e Set when the sensor operates above 1200m
81. o processors contained within the ECU Similarly two streams of engine throttle valve positional information are fed back into these processors which are then compared by the ECU software Any discrepancies are analysed and appropriate safety oriented commands outputed to the throttle valve which may be limited to a maximum 15 opening or to a 7 mechanically sprung setting for limp home or in extreme cases the injectors may be shut off Note that no IAC valve is required as the idle air control function is incorporated into the electronic throt tle system ECU Communication 2006 model year cars with ETC have the VIN included in the ECU memory without which the MIL will be illuminated and a fault code stored The Lotus Scan tool requires an updated operating programme which includes VIN download facility and is available on CD under part number T000T 1466 2 This programme must be downloaded on to a PC before being transferred to the Scan tool The ECU progamme is also specific to ETC with an i d of A120E0030H non USA or A121E0010H USA EMP 6 DIAGNOSTIC CODE SUPPLEMENT 06 M Y DTC P0016 New fault codes for 06 M Y cars with electronic throttle control are as follows Fault Description Crankshaft Position Camshaft Position Correlation Error P0121 P0122 P0123 Throttle Position Sensor A see page 12 P0222 P0223 P0630 P0638 P2100 P2102 P2103 P2104 P2105 P2106 P2107 P2108 P2122 P2123 P212
82. open circuit e VVL valve short to ground e Rocker arm failure e Rocker shaft location pin failure e ECU output circuit failure Notes The MIL will be illuminated if the fault is present for 2 consecutive trips EMP 2 DIAGNOSTIC SCANNER TOOLS In order to provide for communication with the engine management system electronic control module a hand held electronic scanner Lotus Scan part number TOO0T 1418F may be plugged into a special 16 terminal harness connector socket known as a Data Link Connector DLC located at the front of the passenger footwell Note that this tool may also be used on previous Elise models excluding Exige 340R and 160 models Amongst the operations available using the Lotus Scan tool are Reading of Trouble Codes Clearing of Trouble Codes Reading live data Test operation of individual solenoids Running engine history report Reprogramming ECU Operating instructions are provided with the tool Important Note The power supply transformer is used for overnight charging of the printer and also for powering the Scan tool during software downloading from a PC personal computer For the software download operation the Scan tool requires a power supply from the mains via the transformer and an inverter Two types of inverter have been used early kits used an adaptor lead to plug into the bottom end of the Scanner tool Later kits use an adaptor plug fitting into the top end of th
83. ormance A Camshaft Position Timing Over Retarded B Camshaft Position Timing Over Advanced or System Performance B Camshaft Position Timing Over Retarded Crankshaft Position Camshaft Position Correlation Sensor A Crankshaft Position Camshaft Position Correlation Sensor B Intake Valve Control Solenoid Circuit Low Intake Valve Control Solenoid Circuit High Exhaust Valve Control Solenoid Circuit Low Exhaust Valve Control Solenoid Circuit High Mass or Volume Air Flow Circuit Range Performance Problem Mass or Volume Air Flow Circuit Low Input Mass or Volume Air Flow Circuit High Input Manifold Absolute Pressure Barometric Pressure Circuit Low Input Manifold Absolute Pressure Barometric Pressure Circuit High Input Intake Air Temperature Circuit Low Input Intake Air Temperature Circuit High Input Engine Coolant Temperature Circuit Range Performance Problem Engine Coolant Temperature Circuit Low Input Engine Coolant Temperature Circuit High Input Throttle Pedal Position Sensor Switch A Circuit Low Input Throttle Pedal Position Sensor Switch A Circuit High Input O2 Sensor Circuit Low Voltage Sensor 1 O2 Sensor Circuit High Voltage Sensor 1 O2 Sensor Circuit Slow Response Sensor 1 O2 Sensor Circuit No Activity Detected Sensor 1 O2 Sensor Heater Circuit Sensor 1 O2 Sensor Circuit Low Voltage Sensor 2 O2 Sensor Circuit High Voltage Sensor 2 O2 Sensor Circuit Slow Response Sensor 2 O2 Sensor Circuit No Act
84. ould match within a defined tolerance Note that the potentiometers operate on 5 volts Enable Criteria None Disable Criteria Throttle position greater than 60 Potential failure modes TPS1 reading incorrectly TPS2 reading incorrectly Notes A maximum throttle opening of 15 may be imposed Pedal Position Sensor Switch D E Voltage Correlation P2138 Description Two potentiometers are built into the throttle pedal unit in order to provide a throttle demand signal to the ECU Two processors within the ECU compare the two output signals which should match within a defined tolerance Note that the potentiometers operate on 5 volts Enable Criteria None Disable Criteria None Potential failure modes PPS1 reading incorrectly PPS2 reading incorrectly Notes A maximum throttle opening of 15 may be imposed Throttle Actuator Control System High Airflow Detected P2173 Description The mass air flow is compared with the throttle position to determine whether an incorrect correlation exists Enable Criteria None Disable Criteria MAF fault s present Potential failure modes Throttle plate damage Air leak in intake system Notes A mechanically sprung 7 throttle opening may be imposed or the injectors may be shut off to stop the engine EMP 7 DIAGNOSTIC CODE SUPPLEMENT 2011 M Y ELISE 1ZR POWERTRAIN Euro 5 Fault Description A Camshaft Position Timing Over Advanced or System Perf
85. ow engine load e Engine running e TPS gt 80 e Engine speed gt 1500rpm e MAPS lt 40 e Vehicle Speed gt 30 km h 18 6mph OR Rationality check throttle not too low at high engine load e Engine running e TPS lt 10 Engine speed 1500 2010rpm e MAPS gt 65 MAPS Mass Air Per Stroke Disable Criteria P0101 P0102 P0103 MAF Sensor fault codes P0500 Vehicle Speed sensor P0016 Crankshaft Camshaft position correlation error Potential failure modes e Sensor short or open circuit e Sensor failure Enable Criteria None Disable Criteria P0016 Crankshaft Camshaft position correlation error Potential failure modes e Signal short circuit lt 0 283 V e Reference voltage open circuit e Reference voltage short to ground e Sensor failure P0123 Enable Criteria None Disable Criteria P0016 Crankshaft Camshaft position correlation error Potential failure modes e Signal open circuit gt 4 487 V e Reference voltage open circuit e Reference voltage short to ground e Sensor failure Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J page DI 45 to DI 52 Coolant Thermostat P0128 P0128 Coolant Thermostat Coolant Temperature Below Thermostat Regulating Temperature Description The thermostat diagnostic is enabled a
86. put other than OFF received for more than 100 seconds e P0578 Input other than OFF received for more than 100 seconds Potential failure modes e Cruise switch wiring open circuit or shorted e Cruise switch fault e ECU input circuit fault Diagnostic Mask e The service light will be illuminated for 30 seconds at the point the fault occurs and then illuminate for 30 seconds after engine start if the fault is present P0571 Monitor e Continuous Enable Criteria 1 e KMH gt 10 kmh e PPS gt 0 488 Enable Criteria 2 e ABS communications working Disable Criteria None Malfunction Criteria 1 e Brake switch on for greater than 25 5 seconds Malfunction Criteria 2 e ABS indicating brakes are on but brake switch off for greater than 0 5 seconds Potential failure modes e Brake switch wiring open circuit or shorted e Brake switch fault Diagnostic Mask e The service light will be illuminated for 30 seconds at the point the fault occurs and then illuminate for 30 seconds after engine start if the fault is present ECU Integrity P0601 P0606 P0601 Internal Control Module Memory Checksum Error P0606 ECM PCM Processor Description These codes are used by the ECU to check the integrity of the software and calibration data P0601 checks that on power up the checksum for calibration data is the same as checksum saved on the previous power down PO606 checks the watchdog timer after a defined period to see if
87. r Control Circuit Low 113 P2649 A Rocker Arm Actuator Control Circuit High 114 U0101 Lost communications with TCM 131 U0115 Lost communication with ECM PCM B Valvematic controller 131 U0122 Lost Communications with VDCM 132 U0316 Software Incompatible with VDCM 132 Note Fault code P1047 If the power supply to the VALVEMATIC controller is lost during normal vehicle operation code P1047 will be stored and a limphome mode initiated This will result in limited engine torque being available for the remainder of the ignition cycle Re instatement of the power supply will not automatically eradicate the code and neither will clearing of the code via Lotus TechCentre be effective until a learing process has been completed After rectification of the power supply fault proceed as follows Ignition off and allow ECU to power down wait for 30 seconds Start engine and allow to idle for 30 seconds Idle speed may increase during this recovery process Ignition off for 30 seconds Start engine and allow to idle for 30 seconds Ignition off for 30 seconds Ignition on and use Lotus TechCentre to reset code P1047 and any other VALVEMATIC related fault codes Process complete Ouarwn gt Camshaft Timing Control VVT P0011 P0012 P0014 P0015 P0011 Camshaft Position Inlet Timing Over Advanced or System Performance P0012 Camshaft Position Inlet Timing Over Retarded P0014 Camshaft Position Exhaust Timing Over Advan
88. ration Fuel Cut Off followed by idle operation for lean to rich switch e DFCO for rich to lean switch Disable Criteria P0116 P0117 P0118 Coolant Temperature Sensor faults P0201 P0202 P0203 P0204 Injector faults P0300 P0301 P0302 P0303 P0304 Misfire faults P1301 P1302 Misfire faults causing emission or catalyst damage Monitor Continuous until the test is either passed or failed Potential failure modes e Check and rectify any pre catalyst sensor fault code as they may be causing the fault code to be set e Catalyst P0140 Set when the sensor fails to switch above 557mV and below 400mV within 60 seconds Enable Criteria Engine run time gt 30 seconds e Engine is not at idle Engine is in closed loop fuel control Monitor Continuous Potential failure modes e Check and rectify any front sensor fault code as they may be causing the fault code to be set e Sensor connector and wiring should be checked for corrosion and loose connections e Catalyst P0141 Set when the sensor output is greater than 1900mA or less than 250mA for 1 5 seconds for 40 consecutive checks Enable Criteria Engine run time gt 60 seconds Monitor Continuous Potential failure modes Sensor connector and wiring should be checked for corrosion and loose connections Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found in To
89. riods may be attributed to misfire on a known cylinder Component connections 06 M Y in brackets Connector Description ECU Pin ECU Connector 1 Supply Voltage Coil 1 Coil2 Coil3 Coil4 2 Ignition Coil Feedback 22 F3 22 F3 22 F3 22 F3 52 Way Right 3 Coil Output Logic 52 G1 26 G4 47 G3 48 G2 52 Way Right 4 Ground Malfunction Criteria The operation of all the misfire codes is the same the last digit relates to the misfire involved i e a code P0303 indicates there is a problem with coil number 3 P0300 indicates the misfire is random and not linked to one particular cylinder Enable Criteria e Battery voltage between 10 16 V e Coolant temperature between 10 120 C 14 248 F Engine speed between 660 8010rpm e Engine speed transient gt 15rpm Altitude lt 8000 ft 2438 m Baro gt 756mbar e Fuel level gt 5 litres 1 3 US gallons Engine load between 15 48 depending on engine speed Disable Criteria DFCO enabled Deceleration Fuel Cut Off Monitor Continuous Limp home e Limit maximum engine speed to 6000 rpm e Return the fuel system to open loop e ECU may deactivate two cylinders the misfiring cylinder and it s matched other i e 1 amp 4 or 2 amp 3 Potential failure modes e Injector related codes as these can cause misfire codes to be set e VVT or VVL codes set e Sensor connector and wiring for signs of corrosion or loose connections e Spark plug C
90. rol Circuit Open Description The fuel system is of the non return type The pump is incorporated into the fuel tank module which also con tains the level sensor regulator and vapour pressure sensor Component connections Connector Description ECU Pin ECU Connector 4 RMC 1 MFRU Inertia Switch Pin 1 2 RMC 2 MFRU Fuel Pump Relay 68 J4 28 Way Left 06 M Y in brackets MFRU Multi Function Relay Unit Monitor Continuous Enable Criteria Ignition on Disable Criteria None Potential failure modes e Pump open circuit or short to ground e Multi Function Relay Unit failure e Pump failure e ECU output circuit failure Notes No MIL will be illuminated for this failure Air Conditioning System P0646 P0647 P0646 A C Clutch Relay Control Circuit Low P0647 A C Clutch Relay Control Circuit High Component connections Connector Description ECU Pin 5 ACCM 2 AC Clutch Relay 53 J1 ACCM A C Control Module Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes ECU Connector 28 Way Left 06 M Y in brackets e A C compressor clutch open circuit or short to ground e A C Control Module failure e A C compressor clutch failure e ECU output circuit failure Notes No MIL will be illuminated for this failure mms FAC SI ps Misfire P1301 P1302 P1301 Misfire level causing emissions increase P1302 Misfire level causing
91. s a voltage when it becomes de formed The piezoelectric element sends continuously sends a signal to the ECU when the cylinder block vibrates due to engine knocking this signal increases The ECU is able to identify each cylinder If knock is detected then the ECU will retard the ignition of the relevant cylinder to suppress it The knock control sensor cannot differentiate between spark knock and other similar sounding noises Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Sensor input D1 48 Way Centre 2 Ground C1 48 Way Centre Monitor e Continuous Enable Criteria e Engine running Malfunction Criteria e P0327 This code is set when the bank 1 knock sensor signal is lt 0 586 V e P0328 This code is set when the bank 1 knock sensor signal is gt 2 932 V Potential failure modes e Abnormal engine noise i e damaged engine or exhaust system contacting vehicle Knock sensor fixing too tight e Sensor connector wiring corroded or loose connections ECU Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips Engine Speed Position Sensors P0335 P0335 Crankshaft Position Sensor A Circuit Range Performance Description Engine speed is calculated by measuring the time between the teeth of the crankshaft sensor trigger disc The disc has 34 teeth and 2 missing teeth spaced at 10 degree intervals around the disc The cen
92. sor A Circuit Range Performance Camshaft Position Sensor A Circuit Ignition Coil A Primary Secondary Circuit Ignition Coil B Primary Secondary Circuit Ignition Coil C Primary Secondary Circuit Ignition Coil D Primary Secondary Circuit Catalyst System Efficiency Below Threshold Evaporative Emission System Incorrect Purge Flow Evaporative Emission System Leak Detected small leak DMBOOONNNOATAAR HHH 3 D Fault description Evaporative Emission System Purge Control Valve Circuit Open Evaporative Emission System Purge Control Valve Circuit Shorted Evaporative Emission System Vent Control Circuit Evaporative Emission System Vent Control Circuit Open Evaporative Emission System Vent Control Circuit Shorted Evaporative Emission System Pressure Sensor Switch Range Performance Evaporative Emission System Pressure Sensor Switch Low Evaporative Emission System Pressure Sensor Switch High Evaporative Emission System Leak Detected large leak Evaporative Emission System Leak Detected very small leak Fuel Level Sensor A Circuit Range Performance Fuel Level Sensor A Circuit Low Fuel Level Sensor A Circuit High Fan 1 Control Circuit Fan 2 Control Circuit Vehicle Speed Sensor A Idle Air Control System RPM Lower Than Expected Idle Air Control System RPM Higher Than Expected Idle Air Control System Circuit Low Idle Air Control System Circuit High System Voltage Low System Voltag
93. sor failure P0107 P0108 Enable Criteria Engine running Disable Criteria None Potential failure modes Sensor failure Notes The MIL will be illuminated if the fault is present for 2 consecutive trips Intake Air Temperature P0111 P0112 P0113 P0111 Intake Air Temperature Sensor 1 Circuit Range Performance P0112Intake Air Temperature Sensor 1 Circuit Low P0113Intake Air Temperature Sensor 1 Circuit High Description The combined sensor which measure both Mass Air Flow MAF and Intake Air Temperature IAT is incorpo rated into the airbox The IAT sensor is a thermistor device which changes resistance with temperature As air intake temperature decreases the thermistor resistance value increases and conversely as air temperature increases so the thermistor resistance value decreases Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Battery Voltage 2 MAF Ground 31 D2 52 Way Right 3 MAF Signal 45 B4 52 Way Right 06 M Y in brackets 4 IAT Signal 44 B3 52 Way Right 5 IAT Ground 18 D2 52 Way Right Sensor characteristics IAT 20 C 4 F 12 5 16 9 KQ IAT 20 C 68 F 2 19 2 67 KQ IAT 60 C 140 F 0 50 0 68 kQ Monitor Continuous P0111 Enable Criteria e Engine running lt 30 secs Coolant temperature lt 30 C 86 F Disable Criteria P0116 P0117 P0118 Coolant temperature fault codes Potential failure modes e P0112 signal shor
94. ss if the system calculates the measure of leak is above a specified value determined by a table related to fuel level after the 19 7 second timer has expired Monitor Until leak check is completed Potential failure modes e Leak from pipes or connections e Leaking or damaged seal on filler cap not fitted correctly e Canister Closure valve not fully closing Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips e Further information on the sensor may be found in Toyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J page FI 53 Evaporative Emission Control Purge Open Closed Circuit P0444 P0445 P0446 P0447 P0448 P0451 P0452 P0453 P0444 Evaporative Emission System Purge Control Valve Circuit Open P0445 Evaporative Emission System Purge Control Valve Circuit Closed P0446 Evaporative Emission System Vent Control Circuit P0447 Evaporative Emission System Vent Control Circuit Open P0448 Evaporative Emission System Vent Control Circuit Closed P0451 Evaporative Emission System Pressure Sensor Switch Range Performance P0452 Evaporative Emission System Pressure Sensor Switch Low P0453 Evaporative Emission System Pressure Sensor Switch High Description When the engine is running the ECU continuously monitors the feedback signals from the evaporative emission components The feedback signal should be low when the turned ON and high when turned Off The following codes will be set if the above
95. stem Efficiency Below Threshold Evaporative Emission Control System Purge Control Valve Circuit Open Evaporative Emission Control System Purge Control Valve Circuit Shorted Fuel Level Sensor Circuit Low Input Fuel Level Sensor Circuit High Input Cooling Fan 1 Control Circuit Cooling Fan 2 Control Circuit Vehicle Speed Sensor Idle Control System RPM Lower Than Expected Idle Control System RPM Higher Than Expected A C Evaporator Temperature Sensor Circuit Low A C Evaporator Temperature Sensor Circuit High System Voltage Low System Voltage High Cruise control on off signal Cruise control resume decel signal Cruise control set accel signal Cruise Control Brake Switch A Circuit Internal Control Module Memory Check Sum Error ECM PCM Processor Control Module Vehicle Options Error Starter Relay Circuit High Fuel Pump A Control Circuit Low Fuel Pump A Control Circuit High VIN Not Programmed or Mismatch ECM PCM Throttle Actuator Control Range Performance Intake Manifold Tuning Valve Control Circuit Low Intake Manifold Tuning Valve Control Circuit High ECM PCM Power Relay Control Circuit Open Brake Switch B Circuit Clutch Position Sensor Circuit Range Performance Clutch Position Sensor Circuit Low Clutch Position Sensor Circuit High Valvematic SDOWN Circuit Malfunction Valvematic ECU Detected Difference Between Target and Actual Valvematic Angle Valvematic Driver Learned Value Error Power Source Circuit Malfunct
96. stics 0 330 g sec Typical values 1 5 5 5 g sec idle 5 0 15 0 g sec 2500rpm elevated idle no load P0101 Monitor Continuous Enable Criteria Engine running Engine speed gt 1500rpm Engine speed lt 3510rpm Fuel Learns enabled Disable Criteria e P0122 P0123 P0222 P0223 Throttle Pedal position fault codes Malfunction Criteria e Measured MAF is compared to a predicted MAF based on current engine conditions e Error gt 40 for time gt 1 5 secs Potential failure modes MAF meter Air induction system Air intake hose connections Diagnostic Mask The MIL will be illuminated if the faults are present for 2 consecutive trips P0102 Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Malfunction Criteria e Voltage at ECU lt 0 52V for time gt 1 5 secs Potential failure modes e MAF sensor circuit open MAF sensor circuit short to ground Diagnostic Mask e The MIL will be illuminated if the faults are present for 2 consecutive trips P0103 Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Malfunction Criteria e Voltage at ECU gt 4 86V for time gt 1 5 secs Potential failure modes e MAF sensor circuit short to ECU supply voltage Diagnostic Mask e The MIL will be illuminated if the faults are present for 2 consecutive trips Barometric Pressure P0107 P0108
97. t circuit e P0113 signal open circuit e Sensor failure P0112 Enable Criteria Engine running Disable Criteria None Potential failure modes Signal short circuit IAT 40 C 104 F lt 0 049 V e Sensor failure Enable Criteria Engine running Disable Criteria None Potential failure modes e Signal open circuit IAT gt 140 C 284 F gt 4 932 V e Sensor failure Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 33 to DI 38 Engine Coolant Temperature P0116 P0117 P0118 P0116 Engine Coolant Temperature Circuit Range Performance P0117 Engine Coolant Temperature Circuit Low P0118 Engine Coolant Temperature Circuit High Description The engine coolant temperature sensor is a thermistor device which changes resistance with temperature As coolant temperature decreases the thermistor resistance value increases and conversely as coolant tempera ture increases so the thermistor resistance value decreases Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Ground 7 H1 52 Way Right 06 M Y in brackets 2 Signal 33 C3 52 Way Right Sensor characteristics 0 C 32 F 3 279 V 19 4 C 67 F 2 186 V 42 5 C 108 5 F 1 249 V 80 C 176 F 0 469 V P0116 Enable Criteria Engine running gt 800 seconds Disa
98. tatic valve timing is incorrect e VVT camshaft actuator failure VVT control valve stuck open closed VVT control valve filter Diagnostic Mask e The MIL will be illuminated if the faults are present for 2 consecutive trips Crankshaft Position Camshaft Position Correlation Error P0016 P0017 P0016 Crankshaft position camshaft position correlation bank 1 sensor A Inlet P0017 Crankshaft position camshaft position correlation bank 1 sensor B Exhaust Description The crankshaft position sensor is used to identify engine position and speed via a pole wheel mounted on the front end of the crankshaft The camshaft position sensor is used to determine camshaft position from a three vane reluctor on the rear end of the inlet and exhaust camshaft Fault codes P0016 P0017 indicate a mechanical timing error such as incorrectly set or jumped cam timing Monitor Continuous Enable Criteria Engine running from cranking up to 4 seconds Disable Criteria None Malfunction Criteria Camshaft out of phase with crankshaft gt 16 degrees Potential failure modes Static valve timing is incorrect e VVT camshaft actuator failure VVT control valve stuck open closed e VVT control valve filter Diagnostic Mask The MIL will be illuminated if the faults are present for 2 consecutive trips Camshaft Timing Control VVT P0076 P0077 P0079 P0080 P0076 Intake Valve Control Solenoid
99. terfly without allowing the cable or mechanism to be strained If the throttle stop screw was adjusted allow the engine to idle for 15 minutes to relearn settings An alternative pedal position which may be preferred for heel and toeing may be achieved by replacing the rubber upstop buffer with an M5x15 hex head setscrew with three flat washers beneath the head for a total thickness of around 7mm The cable must then be re adjusted at the engine abutment as above The foopad downstop bolt should then be replaced by an M8x20 setscrew and reset as above F N q i i Throttle cable j Closed throttle stop bracket Cable quadrant Throttle stop screw EMP 5 2006 MODEL YEAR ELECTRONIC THROTTLE CONTROL ETC For 06 model year the 2ZZ GE engine is equipped with an electronic drive by wire throttle in order to meet Low Emissions Vehicle 2 emissions standards as dictated by California Air Resources Board This is achieved by allowing fuel pre scheduling and consistency of load demand The mechanical throttle control cable is replaced by a pedal actuated potentiometer unit which feeds pedal movement and position information to the engine management ECU The ECU compares this demand information with existing engine throttle position data and outputs a suitable command signal to the DC step per motor which operates the throttle valve For optimum safety two output curves are produced by the pedal unit and are fed into tw
100. terrupted the ECM will register a diagnostic code Potential failure modes e CAN wiring e TCM control module failure e CAN bus corruption by another module on bus Diagnostic Mask The service light will be illuminated for 30 seconds after engine start if the fault was present on the previous trip Lost communication with ECM PCM B Valvematic controller U0115 U0115 Lost communication with ECM PCM B Valvematic controller Monitor e Continuous Enable Criteria e Valvematic enabled by SDOWN line e ECU transmitting CAN messages to valvematic e Time gt 100msec Disable Criteria e U0115 Malfunction Criteria e Lost communication with ECM PCM B CAN communications failed in Valvematic to ECU direction CAN messages PID2S01 PID2S02 or PID2S03 failed continuously for 100ms Potential failure modes e CAN wiring e Valvematic control module failure e CAN bus corruption by another module on bus Diagnostic Mask e The MIL will be illuminated if fault is present Lost Communications with VDCM U0122 U0122 Lost Communications with VDCM Description The ECM communicates with the Vehicle Dynamic Control Module VDCM via the CAN bus If these CAN bus communications have been interrupted the ECM will register a diagnostic code Potential failure modes e CAN wiring e VDCM control module failure e CAN bus corruption by another module on bus Diagnostic Mask e The service light will be illumi
101. tion accuracy reduces high voltage loss and enhances the reliability of the ignition system The DIS is a 1 cylinder system that ignites one cylinder with one ignition coil The ECU determines the ignition timing and outputs the ignition signals IGT for each cylinder Based on IGT signals the power transistors in the igniter cuts off the current to the primary coil which induces a spark at the spark plug connected to the secondary coil The igniter will also send an ignition confirmation signal IGF as a fail safe measure to the ECU Component connections Connector Pin Description ECU Pin ECU Connector 1 Supply Voltage Coil1 Coil2 Coil3 Coil4 2 Ignition Coil Feedback D2 D2 D2 D2 32 Way Left 3 Coil Output Logic F4 F3 F2 F1 32 Way Left 4 Ground Monitor e Continuous Enable Criteria e Engine running Malfunction Criteria e No IGF signal to ECM while engine is running Potential failure modes e Open or short in IGF 1 IGF6 circuits from ignition coil to ECU e Coil failure e ECU Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips Catalyst System Efficiency P0420 Catalyst System Efficiency Below Threshold Description The ECU compares the waveform of the oxygen sensors located before and after the catalyst to determine whether or not the catalyst has deteriorated If the catalyst is functioning normally the front oxygen sensor will be switching between rich and lean
102. tion in accordance with the drive signal duty cycle this in turns controls the oil pressure applied to the vanes A50 duty cycle applied to the valve will hold the valve current timing by preventing oil flow from the VVT controller housing a duty cycle less than 50 will retard the valve timing a duty cycle greater then 50 will advance the valve timing Component connections Sensor Connector Description ECU Pin 1 Battery Voltage 2 VVT Oil Control Valve 49 J3 P0011 P0012 Monitor Continuous Enable Criteria e Engine running gt 30 secs e Coolant temperature gt 60 C 140 F Disable Criteria P0116 P0117 P0118 Coolant temperature fault codes Potential failure modes e Static valve timing is incorrect e VVT camshaft actuator failure e VVT valve stuck open closed P0076 P0077 Monitor Continuous Enable Criteria Engine running Disable Criteria None Potential failure modes e VVT valve open circuit e VVT valve short to ground e ECU output circuit failure Notes ECU Connector 52 Way Right 06 M Y in brackets The MIL will be illuminated if the faults are present for 2 consecutive trips Intake Air Flow P0101 P0102 P0103 P0101 Mass or Volume Air Flow Circuit Range Performance P0102 Mass or Volume Air Flow Circuit Low Input P0103 Mass or Volume Air Flow Circuit High Input Description The Mass Air Flow MAF sensor is incorporated into the airbox and measures both intake air f
103. tre of the 2 missing teeth is positioned at 230 degrees before cylinder No 1 and 4 TDC The crankshaft sensor signal is also used to determine misfires events Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Sensor input A4 32 Way Left 2 Ground B2 32 Way Left Monitor e Continuous Enable Criteria e Engine running Disable Criteria e None Malfunction Criteria e 15 crank errors in succession This can occur due to no crank signal occurring whilst the cams con tinue to count or if there is a measured consecutive crank error Potential failure modes e Sensor signal open circuit or short to ground e Sensor ground open circuit e Sensor failure e Crankshaft sensor plate e ECU Diagnostic Mask e The MIL will be illuminated if this fault is present for two consecutive trips Notes If a sensor or sensor circuit failure occurs the engine will not fire or start Engine Speed Position Sensors P0341 P0366 P0341 Camshaft Position Sensor A Circuit Bank 1 P0366 Camshaft Position Sensor B Circuit Bank 1 Description The camshaft position input to the ECU is used to determine engine phase enable sequential fuel injec tion control and to determine camshaft position for VVT control The inlet camshaft has three teeth spaced 90 apart which are detected by the electromagnetic sensor The valve timing set ting is measured in the ECU by measuring time from a fixed posit
104. triction in the exhaust system or air intake filter e Erratic throttle position sensor e MAF fault e O2 sensor fault e Ignition fault Diagnostic Mask e The MIL will be illuminated if a fault is present for two consecutive trips Fuel Injection System P0261 P0262 P0264 P0265 P0267 P0268 P0270 P0271 P0261 Injector Circuit low voltage Cylinder 1 P0262 Injector Circuit high voltage Cylinder 1 P0264 Injector Circuit low voltage Cylinder 2 P0265 Injector Circuit high voltage Cylinder 2 P0267 Injector Circuit low voltage Cylinder 3 P0268 Injector Circuit high voltage Cylinder 3 P0270 Injector Circuit low voltage Cylinder 4 P0271 Injector Circuit high voltage Cylinder 4 Description The ECU has four injector driver circuits each of which controls an injector When the engine is run ning the ECU continuously monitors the injector circuit feedback signals The monitored feedback signal should be low voltage when the injector is ON and high voltage when the injector is OFF Component connections Injector ECU Pin ECU Connector 1 H4 32 Way Left 2 H3 32 Way Left 3 H2 32 Way Left 4 H1 32 Way Left Malfunction Criteria Monitor e Continuous Enable Criteria e Engine running Potential failure modes e Sensor connector or wiring corroded or loose connections Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips Limp home e Lim
105. ult is present P2648 Monitor e Continuous Enable Criteria e Ignition on Time gt 200msec Disable Criteria e U0115 Malfunction Criteria e A rocker arm actuator control circuit low e Current does not flow to actuator when commanded to operate Potential failure modes e Continuously variable valve lift controller assembly Diagnostic Mask e The MIL will be illuminated if fault is present P2649 Monitor e Continuous Enable Criteria e Ignition on Time gt 200msec Disable Criteria e U0115 Malfunction Criteria A rocker arm actuator control circuit high e Current flowing to actuator is more than requested Potential failure modes e Continuously variable valve lift controller assembly Diagnostic Mask e The MIL will be illuminated if fault is present P1107 Manifold Absolute Pressure Circuit Low Input P1108 Manifold Absolute Pressure Circuit High Input Connector Description ECU Pin 1 Ground J4 2 Clutch position sensor signal D4 3 Reference voltage J1 Description Monitor e Continuous Enable Criteria e Engine running Malfunction Criteria P1107 P1108 ECU Connector 48 Way Centre 48 Way Centre 48 Way Centre e Low high voltage out of range lt 1 075 V 54 0kPa or gt 4 976 V 106 9kPa Diagnostic Masks e The MIL will be illuminated if a fault is present for two consecutive trips Misfire P1301 P1302 P1301 Misfire level causing e
106. ults are present for 2 consecutive trips P0135 Monitor e Continuous Enable Criteria Engine run time gt 20 seconds Malfunction Criteria e Set when the heater output is greater than 1900mA or less than 250mA for 1 5 seconds for 40 con secutive checks Potential failure modes e Sensor connector and wiring should be checked for corrosion and loose connections Diagnostic Mask e The MIL will be illuminated if these faults are present for 2 consecutive trips O2 Sensor Post Catalyst P0137 P0138 P0139 P0140 P0141 P0137 O2 Sensor Circuit Low Voltage P0138 O2 Sensor Circuit High Voltage P0139 O2 Sensor Circuit Slow Response P0140 O2 Sensor Circuit No Activity Detected P0141 O2 Sensor Heater Circuit Description The oxygen sensors separately monitor the oxygen content in the exhaust gases of each bank of the engine Each sensor is electrically heated to improve response from start The sensor consists of a zirconia electrode between two platinum plates When zirconia comes into contact with oxygen it becomes an electrical conductor The exhaust gases passes through louvers in the sensor One plate is in contact with the outside air and the other plate is in contact with the exhaust gases The platinum plate in contact with the air is electrically negative due to the oxygen in the atmosphere and the plate in contact with the exhaust gases is electrically positive This will cause a difference in electrical potential t
107. us TechCentre Technical Support phoneline on 0870 9493 668 and e mail on lotus support uk omitec com Also required is a unique 18 character licence registration key without which Techcentre will not function This key is non transferable to other PC s Scope of Lotus TechCentre Model Type of Electronic Control Unit Engine ECU pC ews ass srs TPMS iP _ 08MYon y yJ yJ N yY O Py y y N Y Poy vy nat Nn N 2 11 2007o0n _Y y NA NA N Y Esprit ve Y Y N N N N Note that TechCentre has no connectivity to Rover powertrain Elise Exige variants and that only limited diagnostics are available for the V8 Esprit No communication is available with the Europa powertrain Diag nostics for these vehicles are accessible using the Lotus Scan 3 tool TO00T1467F U K EU ON For instructions on how to use Lotus TechCentre please see the users guide which can be found on the Lotus Dealer Portal http dealers gt Aftersales gt TechCentre gt TechCentre Information ANa ZZ Y ERX Key to engine management component location drawin O0 NO OT 0 o gt Electronic Control Unit ECU Multi function relay unit Oil control valve for variable valve lift Camshaft position sensor Fuel injector Knock sensor Oil control valve for variable valve timing Crankshaft position sensor Plug top coil Coolant temperature sensor Pre catalyst oxygen sensor Post catal
108. voltage loss and enhances the reliability of the ignition system The DIS is a 1 cylinder system that ignites one cylinder with one ignition coil The ECU determines the ignition timing and outputs the ignition signals IGT for each cylinder Based on IGT signals the power transistors in the igniter cuts off the current to the primary coil which induces a spark at the spark plug connected to the secondary coil The igniter will also send an ignition confirmation signal IGF as a fail safe measure to the ECU Component connections 06 M Y in brackets Connector Pin Description ECU Pin ECU Connector 1 Supply Voltage Coil 1 Coil2 Coil3 Coil4 2 Ignition Coil Feedback 22 F3 22 F3 22 F3 22 F3 52 Way Right 3 Coil Output Logic 52 G1 26 G4 47 G3 48 G2 52 Way Right 4 Ground Malfunction Criteria No IGF signal to ECM while engine is running Potential failure modes e Open or short in IGF1 IGF4 circuit from ignition coil to ECU e Coil failure Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 97 to DI 103 Catalyst System Efficienc P0420 P0420 Catalyst System Efficiency Below Threshold Description The ECU compares the waveform of the oxygen sensors located before and after the catalyst to determine whether or not the catalyst has deteriorated If the catalyst is functionin
109. y Right 48 Way Right e Reference voltage short to ground e Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied Pedal Position Sensor E Circuit Low P2127 Pedal position sensor E circuit low Description Two potentiometers are built into the throttle pedal unit in order to provide a throttle demand signal to the ECU Note that the potentiometers operate on 5 volts Enable Criteria e None Disable Criteria e None Potential failure modes e Signal short circuit lt 0 283 V e Reference voltage open circuit e Reference voltage short to ground e Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied Pedal Position Sensor E Circuit High P2128 Pedal position sensor E circuit high Enable Criteria e None Disable Criteria e None Potential failure modes e Signal open circuit gt 4 487 V e Reference voltage open circuit e Reference voltage short to ground e Sensor failure Notes A maximum throttle opening of 15 may be imposed due to this single code In the case of multiple codes a mechanically sprung 7 opening may be applied Throttle Position Sensor A B Voltage Correlation P2135 P2135 Throttle position sensor A B voltage correlat
110. ylinder compression e Cam timing Damage to rocker arm assembly Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Further information on the sensor may be found inToyota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 73 to DI 78 Knock Control System P0324 P0327 P0328 P0324 Knock Control System Error P0327 Knock Sensor 1 Circuit Low P0328 Knock Sensor 1 Circuit High Description The knock sensor contains a piezoelectric element which generates a voltage when it becomes deformed The piezoelectric element sends the signal to the ECU when the cylinder block vibrates due to engine knocking If knock is detected then the ECU will retard the ignition to suppress it The knock control sensor cannot dif ferentiate between spark knock and other similar sounding noises Sensor connections Sensor Connector Description ECU Pin ECU Connector 1 Sensor input 43 C4 52 Way Right 06 M Y in brackets 2 Ground 13 A4 52 Way Right Malfunction Criteria P0327 This code is set when the knock sensor signal is lt 0 586 V P0328 This code is set when the knock sensor signal is gt 2 928 V Potential failure modes e Abnormal engine noise i e damaged engine or exhaust system contacting vehicle Knock sensor fixing too tight e Sensor connector wiring corroded or loose connections Notes e The MIL will be illuminated if the fault is present for 2 consecutive trips Furt
111. yota 1ZZ FE 2ZZ GE manual RM733E B120T0327J pages DI 63 to DI 66 Fuel Control System Too Lean Or Rich P0171 P0172 P0171 System Too Lean P0172 System Too Rich Description The oxygen sensor sends a signal to the ECU corresponding to the exhaust gas oxygen content enabling the ECU to maintain a 14 7 1 air fuel ratio under normal driving conditions The ECU can make fuel corrections of 17 to the calculated fuel demand If the ECU determines a rich condition exists oxygen sensor above 0 450mV it will decrease the calculated fuel demand to maintain a 14 7 1 ratio If the ECU determines a lean condition exists oxygen sensor below 0 450mV it will increase the calculated fuel demand to maintain a 14 7 1 ratio Enable Criteria e Fuel Trim condition enabled e Closed loop fuelling enabled Engine speed gt 1100 rpm e MAF gt 6 g sec e Engine load lt 70 Altitude lt 8000 ft 2438 m Baro gt 756 mbar e Inlet air temperature gt 10 C 14 F Disable Criteria P0106 P0107 P0108 Baro sensor faults P0111 P0112 P0113 Air Intake Sensor faults P0131 P0132 P0133 P0134 P0135 Oxygen sensor faults P0300 P0301 P0302 P0303 P0304 Misfire faults P0441 P0442 P0443 P0447 P0448 P0450 P0451 P0455 P0456 EVAP faults Monitor Continuous Malfunction Criteria P0171 This code is set when the calculated fuel demand has been increased to its maximum limit of 17 and the system still cannot
112. yst oxygen sensor Oil pressure switch Throttle position sensor Vacuum solenoid for intake flap valve Mass airflow sensor Idle Air Control IAC valve prior 06 M Y For component replacement procedures refer to manual B120T0327J EMP 4 MECHANICAL THROTTLE SETTING PROCEDURE Prior 06 M Y To avoid throttle cable strain and ensure correct idle control and pedal operation the following adjustments must be maintained If the pedal downstop is incorrectly set overloading of the throttle body cable quadrant can occur resulting in quadrant distortion closed throttle position error and engine stalling 1 Check the throttle body cable quadrant for distortion and mis alignment If necessary repair or replace the quadrant Check that there is 2 3 mm free play at the throttle pedal adjusting at the throttle body cable abutment bracket if necessary If an idle control problem has been reported reset the closed throttle stop screw on the throttle body With ignition off use a hexagonal key in the bottom end of the throttle stop screw to allow the throttle but terfly valve to fully close and introduce clearance between the screw and quadrant stop bracket Screw upwards until contact is just made and then a further 1 2 turn upwards Secure with the locknut Recheck cable adjustment as above Adjust the throttle pedal downstop such that vigorous full depression of the pedal achieves full opening of the throttle but
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