KEYLESS OPERATION SYSTEM (KOS)
Contents
1. Starter relay communication communication CPU CPU Ignition IG knob cap Keyless Injector operation KOS ECU ETACS ECU ECM Receiver Steering lock key ID data antenna module Built in Steering lock unit AC709104AB TSB Revision 42 18 KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION OPERATION WHEN THE USER IS CARRYING THE KEYLESS OPERATION KEY 1 Press the IG knob on the steering lock and the push switch inside the steering lock is turned ON 2 When the push switch inside the steering lock is turned ON KOS ECU activates the interior trans mitter antenna assembly to send the transmitter signal to the keyless operation key 3 On receiving the transmitter signal from KOS ECU the keyless operation key performs the keyless operation key certification and the key ID calculation and sends the keyless opera tion key ID data to KOS ECU The keyless oper ation key cannot receive the transmitter signal from KOS ECU when it is not located within the engine starting function valid area 4 The receiver antenna receives the signal from the keyless operation key and then KOS ECU com pares the keyless operation key ID data sent from the key with the one registered in it 5 When this data coincides KOS ECU sends the IG knob unlock signal to the steering lock unit inside the steering lock 6 On receiving the IG knob unlock signal the steer ing loc2. a Exterior data transmitting start 0 015 to 0 04 sec b Interior data transmitting start 0 03 to 0 05 sec c Keyless operation key 1 response time of onset 0 035 to 0 06 sec d Keyless operation key 2 response time of onset 0 08 to 0 115 sec Communication Un communicating Keyless operation key 3 response time of onset 0 135 to 0 18 sec d Keyless operation key 2 response time of onset 0 205 to 0 26 sec g CAN communication time of onset to 0 3 sec h Retry time It is variable by the registration number at the time of 4 pieces registration 3 1 sec AC500829AD TSB Revision 42 10 KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION 1 When KOS ECU detects that the unlock sensor on the driver side front passenger side door outside handle or the trunk lid opener switch is turned ON it transmits the exterior data from the exterior transmitter antenna assembly on the operation side At the same time KOS ECU transmits the interfering radio wave reversal code from the exterior transmitter antenna assembly on the other side The interfering radio wave will be transmitted from the front passenger side antenna assembly when the driver side door outside handle is operated and vice versa It will not be transmitted when the trunk lid opener switch is operated NOTE The interfering radio wave is transmitted to disable the door lock operation by a person without the keyless operation key while
3. 2 4 Unlock button RZ Door lock actuators lock unlock Trunk lid latch assembly Panic button The signal causes the hazard warning light to flash once 608093 when the doors locked or flash twice when unlocked Default The signal causes the dome light to extinguish when the doors are locked or come on for 15 seconds when unlocked Keyless operation key AC708674AB e Up to four key ID can be registered using scan This keyless entry function has the following fea tool MB991958 M U T III sub assembly tures A keyless entry system enables locking and unlocking of all doors the trunk lid from 12m 39 4 e Answerback functions feet away from the vehicle The following features NOTE The answerback function can be changed are also available using a customization function Refer to e A four knob type keyless operation key with lock 42 28 unlock trunk lid and panic buttons e Keyless entry timer lock e The receiver antenna assembly incorporates NOTE Timer of the keyless entry timer lock can receiver and a receiving antenna be changed using a customization function Refer to P 42B 28 TSB Revision 42 14 KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION DESCRIPTION OF CONSTRUCTION AND KEYLESS OPERATION KEY lt Front view gt ZS Q gt Unlock button Panic button lt Rear view gt Three diamond mark Indicator light Loc
4. 15 mph or more DATA TRANSMISSION TIMING Vehicle status Transmission timing At vehicle moving once every 1 minute At vehicle stationary once every 13 hours If a sampled pressure varies by 10 kPa 1 5psi from the last transmitted pressure value an additional transmission will occur NOTE Once every 15 seconds for first 30 trans mission after vehicle starts moving TSB Revision KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION 42B 23 WARNINGS ALARMS If the KOS failed operated improperly KOS ECU warns the driver of this by setting off the outer tone alarm and the keyless operation warning indicator on the multi information display in the combination meter If the TPMS fails or the tire pressure is low KOS ECU warns the driver of that state by the TPMS warning light and the multi information display in the combination meter M2421009300181 Display contents Warning operations TPMS Multi warning information light display Warning cancellation conditions Cancels warning operations when one of the conditions met knob in LOCK OFF position and push switch OFF are detected 30 seconds have passed after the warning output started Low keyless operation key battery voltage warning The keyless operation key with low battery voltage is detected when the IG knob is pressed Warning indicator flashes for 30 seconds The outer tone a
5. Permits inhibits the engine starting and controls the engine operation Send atmospheric pressure data Communicates with KOS ECU via CAN Sends the vehicle speed data NOTE 1 When registering the keyless operation KOS ECU the new priority of the keys would be keys KOS ECU numbers each key 1 to 4 in the 1 3 2 4 When keys 3 and 4 have responded then order they are registered initial priority This priority the priority of the keys becomes 3 4 1 2 is renewed each time the doors are locked unlocked NOTE 72 illuminates for tire pressure warning and the IG knob is pressed For example when only Flashes for about 1 minute and then continuously keys 1 and have responded to the signal sent illuminated for TPMS malfunction warning TSB Revision KEYLESS OPERATION SYSTEM KOS 42B 7 GENERAL INFORMATION System configuration Head light Dome light Tail light Ignition key cylinder illumination light Horn Key reminder switch CAN B Steering unit communi Door lock actuator cation 5 Push switch Trunk lid latch Steering lock unit p 020 A CAN C comm Ae Turn signal light Unlock sensor and lock switch ASC ECU Driver s side door KOS ECU __ Combination meter Unlock sensor and lock switch Passenger s side door Multi information
6. 1 response time of onset 0 035 to 0 06 sec d Keyless operation key 2 response time of onset 0 08 to 0 115 sec When KOS ECU detects that the lock switch on the driver side front passenger side door outside handle is turned ON it transmits the exterior data from the exterior transmitter antenna assembly on the operation side At the same time KOS ECU transmits the interfering radio wave reversal code from the exterior transmitter antenna assembly on the other side The interfering radio wave will be transmitted from the front passenger side antenna assembly when the driver side door outside handle is operated and vice versa After the exterior data is transmitted from the exterior transmitter antenna assembly the interior data is transmitted from the interior transmitter antenna assembly front rear After the specified time period varies with the number of the keyless operation keys registered in KOS ECU has passed confirm that there is no keyless operation key in the interior When KOS ECU receives the response from the keyless operation keys that received the interior data KOS ECU cancels the locking operation Communication ae A II S e Keyless operation key 3 response time of onset 0 135 to 0 18 sec d Keyless operation key 2 response time of onset 0 205 to 0 26 sec 9 Retry time It is variable by the registration number at the time of 4 pieces registration 0 31 sec h CAN communication time of onset to
7. keyless operation key from inside the car The lock switch on the keyless operation key is pressed when the door is ajar Receiver antenna module Receives the keyless operation key ID data which is necessary for the engine start using the emergency key and then sends the data to KOS ECU Receiver antenna assembly Receives the operation signals from the lock unlock buttons trunk lid button and panic button on the keyless operation key as well as the keyless operation key ID data which is necessary for engine start and the tire pressure signal from the TPMS transmitter Then sends the data to KOS ECU TPMS transmitter Measure tire pressure directly then send radio frequency signal to receiver antenna assembly Combination meter Multi information display TPMS warning light Communicates with KOS ECU via CAN Receives the warning request or warning information from KOS ECU activates 2 the warning light Warning symbol and message is additionally displayed on the multi information display ETACS ECU Communicates with KOS ECU via CAN By the door lock unlock request trunk open request or panic alarm request from KOS ECU ETACS ECU outputs the lock unlock signal trunk open signal or panic alarm signal When the door lock unlock signal is output ETACS ECU flashes or illuminates the turn signal light and dome light to notify that the lock unlock operation is performed Communicates with KOS ECU via CAN
8. one trillion of ID code combinations can be registered This feature prevents code copying resulting in higher security of the sys tem NOTE The transponder integrated in the keyless opera tion key uses the power supplied from the receiver antenna module Therefore it can be used even when the battery in keyless operation key is discharged One keyless operation key is provided and up to four keys can be registered to one vehicle as needed Also for the number of emergency keys the same number of keys as that of keyless oper ation keys can be registered to one vehicle When KOS ECU is replaced or when the keyless operation key is lost or added the ID codes for all the keyless operation keys must be registered again using the scan tool TSB Revision KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION TIRE PRESSURE MONITORING SYSTEM TPMS FUNCTION When the tire pressure becomes under the specified value the TPMS function warns the driver of that state by illuminating the TPMS warning light OPERATION e The signals from the TPMS transmitter are 42B 21 M2421000600022 NOTE Change to continuous illumination after received by the receiver antenna assembly and sent to KOS ECU KOS ECU processes input signals from each TPMS transmitter as well as vehicle speed sig nals from the ABS ECU It receives the atmo spheric pressure signal from ECM and when the atmospheric pressure is low such as at hig
9. request to lock the actuated position to ETACS ECU Item Lock signal received LOCKING OPERATION INHIBITION CONDITIONS In the following cases the door locking operation is inhibited e Any door is open ajar door switch is ON including door ajar e The emergency key is in the ignition switch e The push switch in the steering lock is ON e The IG knob is in other than LOCK OFF posi tion ANSWERBACK FUNCTIONS When KOS ECU sends a signal to ETACS ECU ETACS ECU outputs the lock unlock signal and acti vates the hazard warning light and the outer tone alarm to notify the driver the doors are locked unlocked Unlock signal received ETACS ECU Lock signal output Unlock signal output Flashes once Hazard warning light Flashes twice Outer tone alarm KOS TIMER LOCK FUNCTION When none of the doors are opened within 30 sec onds after the doors are unlocked by KOS ETACS ECU automatically outputs the door lock sig nal to lock the doors This function prevents the doors from being unlocked accidentally Sounds once initial setting or none Sounds twice initial setting or none TSB Revision KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION 42B 13 KEYLESS ENTRY FUNCTION M2421000400222 Receiver antenna assembly KOS ECU AC708642 Radio frequency signal Lock button Trunk lid button a gt ETACS ECU gt gt lt Electric signal
10. the engine does not start NOTE e 1 The keyless operation key certification agreement memory exists means that a reg istered keyless operation key has been recog nized during the keyless operation key certification communication 72 When the keyless operation key certifica tion agreement memory does not exist the keyless operation key bringing out monitor ing function and the keyless operation key replacement monitoring function keyless operation key monitoring controls have judged that the keyless operation key has been carried out of the vehicle with the IG knob in the LOCK OFF position while turn ing ON the push switch or in the ACC ON or START position NOTE The monitoring function is inhibited when e The keyless operation key certification agree ment memory does not exist from the start e The emergency key is in the IG knob e The IG knob is in LOCK OFF position and the push switch is OFF e The vehicle is judged running shift lever is in the position other than or lt TC SST gt or vehi cle speed is 6 km h or higher TSB Revision KEYLESS OPERATION SYSTEM KOS SYSTEM KEYLESS OPERATION KEY REPLACEMENT MONITORING FUNCTION If the keyless operation key carrying out monitoring function once detects that the key has been carried out of the vehicle with the IG knob in the LOCK OFF position and with the push switch in other than OFF and then the key is
11. 0 65 sec AC607100AB 4 KOS ECU transmits the interior data from the interior transmitter antenna assembly Front 5 After the specified time period varies with the number of the keyless operation keys registered in KOS ECU has passed confirm that the lock conditions are met e When KOS ECU receives the response from the keyless operation keys that received the interior data KOS ECU cancels the locking operation e When all the responding keyless operation keys receive the exterior data only KOS ECU trans mits the lock request to ETACS ECU lf there is no response from the keyless operation keys perform step 6 once TSB Revision 42 12 KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION 6 KOS ECU transmits the exterior data from the exterior transmitter antenna assembly on the operation side At the same time KOS ECU transmits the interfering radio wave reversal code from the exterior transmitter antenna assembly on the other side The interfering radio wave will be transmitted from the front passenger side antenna assembly when the driver side door outside handle is operated and vice versa 7 After the specified time period varies with the number of the keyless operation keys registered in KOS ECU has passed confirm that the lock conditions are met When the responded keyless operation keys after the retry receives the exterior data only KOS ECU transmits the lock request
12. 42 1 GROUP 42 KEYLESS OPERATION SYSTEM KOS CONTENTS GENERAL INFORMATION 42B 2 ENGINE STARTING FUNCTION IMMOBILIZER FUNCTION 42 17 SYSTEM OPERATION 42B 8 TIRE PRESSURE MONITORING SYSTEM DOOR ENTRY FUNCTION 428 8 ee pene KEYLESS ENTRY FUNCTION i CUSTOMIZATION FUNCTION 42B 28 42 2 KEYLESS OPERATION SYSTEM KOS GENERAL INFORMATION GENERAL INFORMATION NOTE In this manual F A S T key Free hand Advanced Security Transmitter is described as Key less Operation System KOS KOS is indicated as F A S T in the scan tool display The keyless operation system KOS enables the driver to unlock all the doors and the trunk lid by just pulling the front door outside handle or operating the trunk lid open switch without taking the key out from his her pocket or bag when he she is carrying a key less operation key that is registered to the vehicle s KOS ECU When the driver s front door outside han dle is operated only the driver s door is unlocked KOS also allows the driver to lock all the doors by pressing the lock switch on the front door outside handle door entry function and start the engine without using the conventional mechanical key engine start function Moreover KOS incorporates the keyless entry function with which like the con ventional keyless entry system a driver can perform the remote operation opening cl
13. 7 Trunk lid opener switch Unlock sensor 505250 609034 AC705753AC TSB Revision KEYLESS OPERATION SYSTEM KOS 42B 9 SYSTEM OPERATION When a driver carrying a keyless operation key presses the lock switch and the unlock sensor door outside handle on the driver s passenger s door out side handle or the trunk lid opener switch the key less operation key and KOS ECU communicate to certify the keyless operation key When KOS ECU certifies the registered keyless operation key within 70 cm 28 inches in radius from the outer side of the vehicle it requests ETACS ECU to lock unlock the doors Even within this range the key may not be certified when it is positioned too high or too low NOTE In the communication for certification of the keyless operation key KOS ECU judges if the key less operation key ID specified to keyless operation key contained in the response data from the keyless operation key coincides with the ID that has been stored in ECU by registration operation The keyless operation key sends the response to KOS ECU only when the KOS ID specific to KOS ECU contained in the received data coincided with the stored ID In the beginning of the communication for certification CONTROL OF UNLOCKING OPERATION Jamming is not transmitted at the time of trunk lid operation a OFF The unlock sensor of door outside handle driver s side passenger s side or the KOS
14. 892 opener switch AC709242AB TSB Revision 42B 4 KEYLESS OPERATION SYSTEM KOS GENERAL INFORMATION Multi information display Built in combination meter TPMS warning light REQUIRED F NORMAL E AC709248AB Keyless operation key a Indicator light Lock button GOD 222 Unlock button 5 Trunk lid button we Panic button Emergency key Emergency key AC709246AB TSB Revision KEYLESS OPERATION SYSTEM KOS 42B 5 GENERAL INFORMATION Main components and functions Parts name Functional description KOS ECU Controls KOS by using the following inputs outputs and communications e Input from the unlock sensor and lock switch on each door input from the push switch on the IG knob Communications with ETACS ECU ECM or ASC ECU and combination meter via CAN Wire communication with the steering lock unit Wireless communication with the keyless operation key via the receiver antenna module receiver antenna assembly and interior exterior transmitter antennas e Output to the outer tone alarm Steering lock incorporates push switch The steering lock has two unlocking mechanisms a mechanical and steering lock unit mechanism that uses an emergency key and an electrical mechanism In the electrical unlocking mechanism the steering lock communicates with KOS ECU via wire and when requested by KOS ECU the steeri
15. ECU creates an encrypted code calculation factor in random number and sends it to the keyless operation key together with the transmit data The keyless operation key calculates the code by using the received factor and sends the result to KOS ECU together with the response data KOS ECU determines that the communication is established only when the code calculation results of both parties coincided UNLOCKING OPERATION OF DOOR ENTRY FUNCTION The keyless operation key and KOS ECU communi cate to certify the keyless operation key when the unlock sensor on the driver side front passen ger side door outside handle or the trunk lid opener switch is turned ON When KOS ECU certifies the registered keyless operation key on the outer side of the vehicle it requests ETACS ECU to unlock the doors If there is no keyless operation key response retry is performed once trunk lid opener switch 1 Exterior transmitter antenna assembly operation side Transmission r Un transmitting 1 Exterior transmitter antenna assembly opposite side Transmission 1 Un transmitting D ar Interior transmitter antenna assembly Transmission Un transmitting EE ee ee Keyless operation key 1 to 4 response i 44 25 21017 01 dih i Response 1 Un answering CAN
16. K No flash LOCK No flash UNLOCK Flash once Lock 0 Unlock 0 No function Dome light delay timer with door Adjustment of interior light delay shutdown time 0 sec 0 second no delay shutdown time 7 5 sec 7 5 seconds 15 sec 15 seconds 30 sec 60 sec 30 seconds default 60 seconds 120 sec 120 seconds 180 sec 180 seconds Door unlock mode Door lock system All doors unlock All the doors are unlocked when the driver s side door is unlocked Dr door unlock Only the driver s side door is unlocked when the driver s side door is unlocked default Auto door unlock by P position Duration of horn chirp Auto door unlock by P position function lt Vehicles with TC SST gt Horn sounding time during horn answer back Disable No function default Always enabled Always with function 0 01 second default 0 02 second TSB Revision Adjustment item scan tool MB991958 display KEYLESS OPERATION SYSTEM KOS Adjustment item 42B 29 CUSTOMIZATION FUNCTION Adjusting contents scan tool MB991958 display Adjusting content Horn chirp by keyless Horn chirp by keyless entry system lt vehicles without auto light gt Horn chirp by keyless entry system lt vehicles with auto light gt Not sound horn No horn answerback function Lock any time The horn sounds when the lock
17. M KEY LOCATION 610128 Keyless operation key brought out of the car warning The keyless operation key is carried out of the vehicle when the IG knob is in the position other than the LOCK position and all the doors are closed e The warning indicator flashes for 5 minutes Outer tone alarm sounds for 5 69 seconds in pattern 2 knob LOCK OFF position and push switch OFF are detected KOS ECU has detected a keyless operation key inside the vehicle 5 minutes have passed after the warning output started CHECK DOORS AC610129AB Door lock does not operate Push switch is pressed ON when the IG knob is in other than LOCK position Push switch is pressed ON when the keyless operation key is inside the car Push switch is pressed ON when the door is ajar Warning indicator flashes for 5 seconds Outer tone alarm sounds for 2 96 seconds in pattern 1 TSB Revision IG knob in LOCK OFF position and push switch OFF are detected 5 seconds have passed after the warning output started Lock switch on the keyless operation switch is pressed again 5 seconds have passed after the warning output started All doors are closed 5 seconds have passed after the warning output started KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION 42B 25 Display Warning operations W
18. a user with the keyless operation key is operating the door lock from the opposite side of the vehicle 2 After the exterior data is transmitted from the exterior transmitter antenna assembly the interior data is transmitted from the interior transmitter antenna assembly front rear 3 For the specified time period varies with the number of the keyless operation keys registered in KOS ECU KOS ECU monitors the response from the keyless operation key that meets the unlock conditions When the keyless operation key receives the exterior data only KOS ECU transmits the unlock request request to unlock the applicable posi tion to ETACS ECU When KOS ECU received no response that enables the unlocking after the specified time period has passed it performs the retry cycle once When no response after the retry KOS ECU terminates the unlocking operation UNLOCKING OPERATION INHIBITION TIME Considering the customer pulls the door outer handle to make sure the doors are locked unlocking opera tion is inhibited for three seconds after the doors are locked by the lock switches on the driver side front passenger side door outside handle or on the trunk lid opener switch This duration can be selected from zero three seconds and five seconds and can be switched using a customization function Refer to P 42B 28 The initial setting at factory is 3 seconds UNLOCKING OPERATION INHIBITION CONDITIONS The door unlocking operati
19. arning contents TPMS Multi cancellation conditions Cancels warning operations when one of the conditions met warning information light display System error Push switch is e The warning 5 minutes have alg pressed ON indicator passed after the REMOVE KEY from OFF when flashes for 5 push switch was error has minutes pressed ON and IG been detected in The outer knob is in LOCK EEPROM in tone alarm position KOS ECU will not sound Push switch is pressed ON from OFF while open circuit in the transmitter antennas are being detected The push switch is pressed ON from OFF while short circuit in the power supply output steering lock transmitter antennas receiver antenna module etc is detected Steering lock communication error has been detected when the push switch was pressed ON The IG knob is in other than the LOCK position while some error is being detected Not displayed TPMS warning light The ignition Illuminate 3 seconds have bulb open circuit switch is turned s for passed after the check from LOCK seconds TPMS warning light OFF to ON is lit TSB Revision 42 26 Display contents KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION Warning operations TPMS warning light Multi information display Warning cancellation conditions Cancels warning operations when one of t
20. brought into the vehi cle the engine must be started when the IG knob is turned to the ON or START position For this pur pose KOS ECU performs the certification communi cation with the keyless operation key inside the vehicle every 5 seconds to monitor the replacement of the keyless operation key When any of the regis tered keyless operation keys sends a response KOS ECU determines that the key has been brought into the vehicle replaced and sets the keyless operation key certification agreement memory to exist and permits starting of the engine ENGINE STARTING FUNCTION VALID AREA The engine can be started only when the keyless operation key is within the interior antenna receiving area Interior transmitter antenna assembly Front 42B 19 OPERATION NOTE The monitoring function is inhibited when e The keyless operation key certification agree ment memory exists from the start e The emergency key is in the IG knob e The knob is in LOCK OFF position and the push switch is OFF e The vehicle is judged running shift lever is in the position other than or lt TC SST gt or vehi cle speed is 6 km h or higher Interior transmitter antenna assembly Rear DOSS 55 NN aL NN Antenna receiving area Emergency function The emergency function is adopted which starts the engine by a combination of emergency key and key less operation key whe
21. button of keyless entry transmitter is pressed once W lock any time Not sound horn The horn sounds when the lock button of keyless entry transmitter is pressed twice default No horn answerback function Lock any time The horn sounds when the lock button of keyless entry transmitter is pressed once Lock auto ON W lock any time During daytime while the lighting switch is in the AUTO position the horn sounds once when the lock is pressed once The horn sounds when the lock button of keyless entry transmitter is pressed twice default Tone alarm answer back Adjusts the tone alarm answer back function Not sound tone alarm At keyless At F A S T No function Sounds when the keyless entry system is activated Sounds when KOS is activated default At Both Sounds when the keyless entry system or KOS is activated Timer lock timer Timer lock period adjustment 30 sec 30 seconds default 60 sec 60 seconds 120 sec 120 seconds 180 sec 180 seconds Panic alarm switch F A S T key out of car F A S T feature With without panic alarm function With without KOS key exterior detection function KOS function adjustment Disable Enable Enable No function With function default No function Disable Both enable With function default All KOS functions are enabled default DoorEntry enable Only door entr
22. display TPMS warning light Interior transmitter Exterior transmitter antenna assembly antenna assembly Trunk lid opener switch Outer tone alarm Driver s side Receiver antenna Front assembly Passenger s side Rear Receiver Trunk lid antenna Radio Radio frequency frequency Low signal signal Low 9 9 frequency frequency frequency signal signal signal Keyless operation key Lock Unlock Trunk lid button Antenna Front tire LH Front tire RH Emergency key Transmission circuit A a A Pressure ACC sensor sensor TPMS transmitter Rear tire LH Rear tire RH Panic button Indicator light AC709150AB TSB Revision 42B 8 KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION SYSTEM OPERATION DOOR ENTRY FUNCTION DESCRIPTION OF CONSTRUCTION AND OPERATION M2421009100228 lt Vehicles outside area gt Front door outside handle passenger s side 4 708643 Trunk lid opener switch Antenna and buzzer assembly Front door outside handle driver s side wD Keyless operation key AC608093 AC708737AB Front door outside handle driver s side passenger s side 0 Lock switch A 03154 505249 View V
23. e receiver antenna assembly the KOS ECU outputs LOCK UNLOCK signal to the ETACS ECU and informs the driver of the keyless entry system opera tion by flashing the light and blowing horn Answer back The initial setting at factory for the answerback function is as the following table Using a customization feature the answerback function can be changed Refer to P 42B 28 FUNCTION TABLE FOR CONFIRMING KEYLESS ENTRY OPERATION DEFAULT Item Operation Doors locked Doors unlocked ETACS ECU receiver antenna assembly Sends lock signal Sends unlock signal Flashes once Dome light Turn signal lights RH and LH Flashes once for 15 seconds Flashes twice Horn locked Sounds once if doors are already TSB Revision 42 16 KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION KEYLESS ENTRY HAZARD LIGHT ANSWERBACK FUNCTION Keyless entry LOCK transmitter OFF switch UNLOCK ON OFF Unlock relay output ON OFF Hazard Illuminate warning light Extinguish AC207001AB Lock relay output The hazard answerback function that allows check ing the lock unlock state of the door easily even in the daytime is installed When the LOCK signal from the keyless operation key is input to ETACS ECU all doors are locked and the hazard warning light flashes once When UNLOCK signal is input all doors are unlocked and the hazard warnin
24. eived A normal signal is received from the TPMS transmitter that was warned The signal of normal battery voltage is received from the TPMS transmitter that was warned The vehicle speed is input The normal vehicle speed value is received KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION 42B 27 lt Sound pattern 1 gt lt Sound pattern 2 gt Ts Ts Ts A 1 01 seconds 0 55 seconds 0 17 0 01 seconds 0 11 0 01 seconds 5 69 seconds AC501053AC 0 08 0 01 seconds T2 2 96 seconds TSB Revision 42 28 Adjustment item scan tool MB991958 display KEYLESS OPERATION SYSTEM KOS CUSTOMIZATION FUNCTION CUSTOMIZATION FUNCTION By operating the ETACS system or MMCS of scan tool MB991958 the following functions can be pro grammed The programmed information is held even when the battery is disconnected Adjustment item Adjusting contents scan tool MB991958 display M2421000300203 Adjusting content Hazard answer back Adjustment of the number of keyless hazard warning light answer back flashes Lock 1 Unlock 2 LOCK Flashes once UNLOCK Flashes twice default Lock 1 Unlock 0 LOCK Flashes once UNLOCK No flash Lock 0 Unlock 2 LOCK No flash UNLOCK Flash twice Lock 2 Unlock 1 LOCK Flash twice UNLOCK Flash once Lock 2 Unlock 0 Lock 0 Unlock 1 LOCK Flash twice UNLOC
25. elf check SERVICE SERVICE REQUIRED is AC609362 displayed Low tire pressure Illuminates Symbol and LOW TIRE PRESSURE is displayed NOTE Change to continuous illumination after flashing about 1 minute TSB Revision 42 22 KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION TIRE PRESSURE THRESHOLD VALUES Item Tire pressure kPa psi Standard pressure at cold reference 220 32 Alarm ON pressure 174 25 2 or less Alarm OFF pressure 189 27 4 or more TPMS TRANSMITTER TIRE PRESSURE SENSOR TIRE PRESSURE SAMPLING TIMING Vehicle status Sampling timing At vehicle moving The TPMS transmitter combines the valve and tire pressure sensor in a single unit The TPMS transmit ters are mounted inside the tires The TPMS trans mitter measures tire pressure directly with its tire pressure sensor and sends radio frequency signals to KOS ECU via receiver antenna assembly The TPMS transmitter includes acceleration sensor that senses tire rotation and change tire pressure sam pling and data transmission timing when vehicle is running NOTE Use only genuine wheels The use of non genuine wheels may cause the improper instal lation of the TPMS transmitters possibly resulting in air leakage and damage to the TPMS transmitter once every 5 seconds At vehicle stationary once every 1 minute NOTE Vehicle moving vehicle speed approxi mately 25 km h
26. g light flashes twice KEYLESS ENTRY DOME LIGHT ANSWERBACK FUNCTION Unlock relay output Lock relay output Door lock switch output Door unlock switch output Dome light a 0 6 second b 1 2 seconds c 15 seconds When LOCK signal from the keyless operation key is input to the ETACS ECU via receiver antenna assembly all doors are locked and the dome light will extinguish When UNLOCK signal is input all doors are unlocked and the dome light illuminates for 15 seconds The dome light fades in keeps on and fades out in 15 seconds after the door unlock relay is operated NOTE If doors are locked with the keyless opera tion key when the dome light is ON while doors are opened the dome light is switched off in 1 2 sec onds In addition if doors are locked with the keyless operation key when the dome light is OFF the dome light does not work 1 Illuminate Li Extinguish t AC404883AB KEYLESS ENTRY HORN ANSWERBACK FUNCTION When the LOCK signal from the keyless operation key is received into ETACS ECU via receiver antenna assembly all doors are locked and the horn sounds If the driver s door cannot be locked even when the keyless operation key is operated the horn does not sound TSB Revision KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION 42B 17 KEYLESS ENTRY TIMER LOCK TIME When none of the doors are opened w
27. h alti tude it calibrates the tire pressure received from TPMS transmitter and makes a judgment of warning When the road tire pressure is low it sends a warning signal causing the TPMS warn ing light to be illuminated When the TPMS has problems it sends a warning signal causing the TPMS warning light to be flashed TPMS WARNING LIGHT flashing for about 1 minute For 3 seconds after the ignition switch is turned to the ON position KOS ECU illuminates the TPMS warning light to check any breaks in the TPMS warning light circuit e By connecting the scan tool to the data link con nector data stored in KOS ECU data of tire pressure and TPMS transmitter ID the alarm sta tus and warning history etc can be displayed and TPMS transmitter ID can be registered NOTE If the TPMS transmitter is replaced regis ter the ID codes of all the TPMS transmitters again using the scan tool The TPMS warning light on the combination meter illuminates or flashes to alert the driver by request from KOS ECU When the tire pressure warning or the fault warning is activated a warning symbol and a message are displayed on the multi information display WARNING DISPLAY PATTERN OF TPMS WARNING LIGHT AND MULTI INFORMATION DISPLAY Circumstance Warning light Multi information display For 3 seconds No indication after the ignition switch is turned to the ON position warning light circuit s
28. he conditions met LOW TIRE PRESSURE AC610119AB Tire pressure alarm The received tire pressure value is under the alarm ON threshold value Symbol LOW PRESSURE is displayed The received tire pressure value is over the alarm OFF threshold value SERVICE REQUIRED AC610120AB NOTE TPMS failure warning ID not stored The TPMS transmitter ID is not registered in the KOS ECU Defective EEPROM Abnormality of data in the EEPROM of the KOS ECU is detected Problem in signal reception Defective sensor The signals from TPMS transmitters cannot be received while driving for about 20 minutes The sensor failure signal is received from the TPMS transmitter The battery voltage of the TPMS transmitter is low The reception problem warning is activated because of the low battery voltage of the TPMS transmitter Vehicle speed input problem The vehicle speed is not input Abnormal vehicle speed value The vehicle speed value is abnormal Change to continuous illumination after flashing for about 1 minute Flashes Symbol and SERVICE REQUIRED is displayed TSB Revision ID is registered normally Data in the EEPROM of the KOS ECU is checked to be normal The signal from the TPMS transmitter that was warned is rec
29. ithin 30 sec onds after the doors are unlocked by the keyless entry system ETACS ECU automatically outputs the door lock signal to lock the doors This function pre vents the doors from being unlocked unexpectedly by operation errors Using a customization function the timer lock period can be changed Refer to 42 28 OPERATION INHIBITION CONDITIONS The operation of the system is inhibited when e The emergency key is in the ignition switch e Any door is open door switch is ON including door ajar THEFT ALARM SYSTEM Refer to GROUP 54A Theft alarm system P 54A 44 PANIC ALARM SYSTEM Refer to GROUP 54A Panic alarm system P 54A 46 ENGINE STARTING FUNCTION IMMOBILIZER FUNCTION When carrying the keyless operation key a driver can start stop the engine by operating only the IG knob The immobilizer function prevents the engine from starting and immobilizes the vehicle by prohib iting the engine fuel injection ignition if a method other than the keyless operation key registered for that vehicle is used in an attempt to start the engine after forced entry CONSTRUCTION DIAGRAM Keyless operation key Radio frequency Min Interior transmitter Push switch Radio antenna Built in assembly frequency Front Steering lock unit M2421009200225 Emergency key Keyless operation key Rear view AC608095 Interior transmitter antenna assembly Rear
30. k button NNA lid button e NA 608093 608094 609441 keyless operation key is integrated into the master key The four knob button is adopted and the specific encrypted code is transmitted as radio wave signal A brilliant silver three diamond mark is stamped on the back side of the key grip to improve appearance An indicator light which illuminates when signals are sent is added on the key grip This indicator light informs you of the signal transmission status and warns you of flat battery A signal transmission circuit printed circuit and a battery are housed in one case The case is housed in the key grip thus improving resistance to water ingress A coin type battery CR2032 is used in the key less operation key Using a customization feature the keyless opera tion key operation can be changed Refer to P 42B 28 The keyless operation key button operation allows the system to operate as follows KEYLESS OPERATION SYSTEM OPERATION TABLE DEFAULT Operation of keyless operation key System operation Trunk lid button Lock button Press once Lock all doors Unlock button Press once Unlock the driver s door Press twice Unlock all doors Press twice press once and then press again within 5 seconds Open the trunk lid Panic alarm Panic button system Press once press and hold for 1 second Starts the panic alarm headlights flash and horn ho
31. k unit performs processing verification of the KOS ID etc based on the received data When no problem is found during the processing the unit sends the OK status signal to KOS ECU and at the same time electrically disengages the steering lock mechanism to make the IG knob rotatable KEYLESS OPERATION KEY TAKE OUT MONITORING FUNCTION KOS ECU monitors whether the keyless operation key is brought out of the car by performing a certifica tion communication with the keyless operation key inside the car when all the doors are closed If the keyless operation key is brought out of the car while the IG knob is in the position other than the LOCK OFF position KOS ECU notifies that the key is brought out of the car When none of the registered keyless operation keys up to four respond during the communication KOS ECU determines that the key has been brought out of the car and the keyless operation key certifi cation agreement memory does not exist and does not permit starting of the engine 7 When a keyless operation key certification agree ment memory exists KOS ECU when it received the OK status signal from the steering lock unit the engine start permission communica tion CAN communication is performed between KOS ECU and the ECM by turning the IG knob from the ACC position to the ON START position and the engine starts If the keyless operation key certification agreement memory does not exist 2
32. larm will not sound 4 Ca KEY BATTERY LOW AC610126AB KEY MISSING AC610127AB lt STEERING WHEEL LOCK 610124 keyless operation key detected inside the car IG knob is not returned properly No keyless operation key is detected inside the car when the IG knob is pressed Opening of the driver s door is detected when the IG knob is in ACC or LOCK position and the push switch is ON The warning indicator flashes for 5 minutes The outer tone alarm will not sound The warning indicator flashes for 5 minutes The outer tone alarm will not sound Key reminder warning tone alarm sounds until closing of the driver s door is detected TSB Revision IG knob in LOCK OFF position and push switch OFF are detected 5 minutes have passed after the warning output started The IG knob in the RUN or START position or the IG knob in the LOCK OFF position and the push switch OFF are detected The driver s door is detected closed from the open position 5 minutes have passed after the warning output started 42 24 Display contents KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION Warning operations TPMS warning light Multi information display Warning cancellation conditions Cancels warning operations when one of the conditions met CONFIR
33. n the IG knob operation is unavailable in case such as discharged battery Also the engine can be started using the conventional ignition key transponder 22 S RSAC Ss NNN AC709160 AB TSB Revision 42 20 KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION CONSTRUCTION DIAGRAM Receiver antenna module Transponder D Keyless operation key Steering lock Emergency key OPERATION Receiver antenna module Keyless operation key AC609293AB 1 Remove the IG knob cap and insert the emer gency key into the keyless operation key in the inverted direction then insert it into the KOS steering lock Because the transponder small transmitter integrated in the keyless operation key only emits weak radio frequency signals operate the emergency key with the keyless operation key inserted in the inverted direction Using the keyless operation key push in the emergency key and then turn the key KOS ECU ETACS ECU ECM Starter relay Ignition Injection AC707540AC 2 When the emergency key is turned to the ON position the transponder integrated in the key less operation key transmits an ID code unique to each key key ID to the receiver antenna module by radio KOS ECU compares the sent key ID with the already registered ID code and only when they match KOS ECU permits the starting of engine More than
34. ng lock unlocks for two seconds Keyless operation key incorporates e The keyless operation key receives signals sent from each emergency key interior exterior transmitter antenna certifies the keyless operation key ID code calculates the key ID and sends the reply data signal to KOS ECU via the receiver antenna assembly The lock button unlock button and trunk lid button operations of keyless operation key transmit signals to KOS ECU via the receiver antenna assembly If two or more keyless operation keys registered in KOS ECU respond at the same time their signals would interfere To avoid this interference each signal from KOS ECU is given the priority data and the keyless operation keys respond in accordance with this priority Lock switch Driver s door Locks all the doors when a driver carrying the keyless operation key presses the lock switch on the front door outside handle Front passenger s door Unlock sensor Driver s door The unlock sensors incorporated in the driver s front door outside handles unlock driver s the door when a driver carrying the keyless operation key pulls the driver s door outside handle Front passenger s The unlock sensors incorporated the passenger s front door door outside handles unlock all the doors when a driver carrying the keyless operation key pulls the front door outside handle Trunk lid opener switch By pressing the trunk lid opener switch on the tru
35. nk lid while he she is carrying the keyless operation key the trunk lid is unlocked NOTE With the locking of trunk lid the locking is performed mechanically when the trunk lid is closed Exterior transmitter Driver s side Converts the data output from KOS ECU via wire into a signal antenna assembly Front passenger s and sends it to the keyless operation key For the transmission area refer to Operation Manual Door Entry Function P 42B 8 side TSB Revision 42 6 Parts name KEYLESS OPERATION SYSTEM KOS GENERAL INFORMATION Functional description Interior transmitter antenna assembly Antenna amp tone alarm assembly Exterior transmitter antenna assembly trunk lid Converts the data output from KOS ECU via wire into a signal and sends it to the keyless operation key For the transmission area refer to Operation Manual Engine Start Function P 42B 17 Converts the data output from KOS ECU via wire into a signal and sends it to the keyless operation key For the transmission area refer to Operation Manual Door Entry Function P 42B 8 Outer tone alarm The outer tone alarm sounds when e The doors are locked or unlocked by the door entry function e The lock switch on the keyless operation switch is pressed when the IG knob is in the LOCK OFF position and the push switch is in other than the ON position The lock switch is pressed on the
36. nks for three minutes Lock button unlock button trunk lid button or panic button Press again Stops the panic alarm in progress TSB Revision KEYLESS OPERATION SYSTEM KOS 42B 15 SYSTEM OPERATION ENCRYPTED CODE Transmitter lock or unlock button ON OFF _ 5 Data UUU code AC508281 AB Four data codes are transmitted when a switch is operated once The encrypted code for user identifi cation is a combination of 0 and 1 and more than 1 million different combinations are available To pre vent theft by copying signal codes the data code includes a rolling code with the encrypted code The rolling code changes each time a signal is sent RECEIVER The receiver is incorporated into the receiver antenna assembly together with the receiving antenna It sends the signal the antenna received from the keyless operation key to KOS ECU KOS ECU compares this signal with the ID code reg istered in it and when they coincided a signal is out put from ETACS ECU By connecting scan tool 991958 M U T III sub assembly to the data link connector up to four encrypted codes of keyless operation keys can be registered NOTE IA keyless operation key can be added with out using the scan tool lt USA only gt FUNCTION FOR CONFIRMING RECEIVER ANTENNA ASSEMBLY OUTPUT AND OPERATION When the KOS ECU receives an electric wave signal of the identification code stored in th
37. ntry engine start function disabling the door entry engine start function enabling the door locking unlocking function only or enabling the engine starting function only Refer to P 42B 28 NOTE Horn sounds and headlights and taillights flash TSB Revision KEYLESS OPERATION SYSTEM KOS 42B 3 GENERAL INFORMATION CONSTRUCTION DIAGRAM IG knob ASC ECU gt TPMS transmitter IG knob cap Steering lock Tire pressure sensor Push switch Receiver Steering lock unit antenna module AC611960 Interior transmitter antenna assembly Front KOS ECU Lock switch and Unlock sensor Passenger s side door Exterior transmitter antenna assembly Passenger s side Reciever antenna assembly Interior transmitter antenna assembly Rear TPMS transmitter Tire pressure sensor Lock switch and Unlock sensor Driver s side door TPMS transmitter Tire pressure sensor Exterior transmitter antenna assembly Driver s side AC709237 Antenna and tone alarm assembly lt Exterior transmitter antenna TPMS transmitter assembly Trunk lid Tire pressure sensor Outer tone alarm gt Lock switch and Unlock sensor Section A A Driver s side door Passenger s side door Front door outside handle ere 10 i A Unlock S Unlock sensor Lock switch sensor assembly Trunk lid _ AC506891 AC506
38. on is inhibited when e The emergency key is in the ignition switch e The push switch in the steering lock is ON e The IG knob is in other than LOCK OFF posi tion e During the unlocking operation inhibition time LOCKING OPERATION OF DOOR ENTRY FUNCTION The keyless operation key and KOS ECU communi cate to certify the keyless operation key when the lock switch on the driver side front passenger side door outside handle is turned ON When KOS ECU certifies the registered keyless operation key only on the outer side of the vehicle it requests ETACS ECU to lock all the doors TSB Revision KEYLESS OPERATION SYSTEM KOS SYSTEM OPERATION CONTROL OF LOCKING OPERATION 1 3 The lock switch of door ON outside handle driver s side passenger s side 42B 11 If there is no keyless operation key response retry that keyless operation key located outside Exterior transmitter Transmission E antenna assem operation side bl ri Un transmitting l 1 Exterior transmitter Transmission antenna assembl opposite side Interior transmitter Un transmitting Se Transmission t antenna assembly Un transmitting 1 Keyless operation key Response 1to 4 response Un answering 1 a Exterior data transmitting start 0 03 to 0 04 sec b Interior data transmitting start 0 03 to 0 05 sec c Keyless operation key
39. osing of all the doors opening of the trunk lid warning function to warn a person who intends to damage the vehicle by operating the lock unlock button trunk lid button and panic button on the keyless operation key The system also incorporates the immobilizer function that prohibits the starting of engine by using unau thorized key as well as the tire pressure monitoring system TPMS that issues a warning to a driver by illuminating or flashing the warning light if an abnor mality to the tire pressure or the system error is detected KOS has the following features M2421000100276 e Each vehicle is provided with two keyless opera tion keys and up to four keyless operation keys can be equipped e The keyless operation key also incorporates an indicator light that enables the driver to check if the signal is transmitted correctly or if the battery in the key is discharged Refer to P 42B 13 e The keyless operation key incorporates an emer gency key to lock unlock the front doors when the battery in the keyless operation key is discharged or the keyless operation system is not working normally Also by using it simultaneously with the keyless operation key insert the emergency key into the keyless operation key in the inverted direction the engine can be started Refer to P 42B 17 NOTE If the immobilizer related system failure occurs the engine may not start e The driver can customize KOS enabling the door e
40. y function is enabled ENG strt enable Only engine starting function is enabled Both disabled All KOS functions are disabled F A S T unlock disable time Adjusts the door unlock inhibition period after door lock is activated 0 sec 0 seconds 3 sec 3 seconds default 5 seconds TSB Revision 5
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