ITB13-006 - InfinitiG37.com
Contents
1. QY INFINITI SERVICE BULLETIN COPYRIGHT NISSAN NORTH AMERICA INC Classification Reference Date EL13 010 1TB13 006 March 22 2013 2005 2013 INFINITI CAN COMMUNICATION NETWORK DIAGNOSTIC FLOW CHART APPLIED VEHICLES All 2005 2013MY Infiniti Vehicles SERVICE INFORMATION This TSB is for troubleshooting of CAN Modules with Diag On CAN Diagnostics The flow charts below are meant to troubleshoot current CAN DTCs The flow charts are intended to diagnose one module at a time repeat the process as needed for additional control units Definition of CAN Codes U1000 missing ECM CAN communications not related to OBD2 system U1000 missing CAN communications for all other ECUs U1001 missing ECM CAN communications related to OBD2 system U1002 similar to U1000 but has a tighter timing spec to set the DTC U1010 Module has internal Issues CLAIMS INFORMATION Submit a Primary Part PFP type line claim using the following claims coding CAN DIAGONSIS End Diag 1 RX3DAA CAN DIAGONSIS End Diag 5 RC3PAA 5 0 The PFP should be the part number of the component that was diagnosed with issues and replaced These operation codes cannot be claimed alone They must be claimed in combination with the replacement of the diagnosed component Use the appropriate Symptom and Diagnosis code which applies to the replaced component Infiniti Bulletins are intended for use by qualified technicians not do i2. CONSULT Was communication intermittent Replace the module Re run diagnosis to verify issue resolved End Diagnosis 5 Have all modules been dded Yes bd Go to E on page 3 See Claims Information 5 7 ITB13 006 Was the issue fixed End Diagnosis 2 See Claims Information Disconnect the module setting the CAN DTC Run harness continuity check on module under fault for CAN Power and Ground Circuits Does harness pass 2 Yes continuity check Re run diagnosis Go There is a Wire Harness back to START on page ISSUE 3 Check the following e Connector splice joint weld splice inline connector is loose Check fuse relay or other module that powers module setting CAN DTC Check grounds Check power feeds Gateway jumper harness is missing Check vehicle battery Fix the issue End Diagnosis 6 Re run diagnosis to See Claims Information verify issue is resolved 6 7 ITB13 006 Harness Incident Type Use the Chart below to determine the type of Harness Incident e Measure CAN H or L to Ground at the DLC for Voltage e Measure CAN H to L for resistance NOTE Use the legend below for Table A OC Open Circuit SC Short Circuit H High L Low Mid Middle Term Terminating V voltage DLC data link connector Table A CANHV KEY CANLV KEY TYPE RESISTANCE OFF CANBUS orF canBus CAN y KEY CAN oa KEY ee ee Normal ee ee Se eae CAN L SC to eae Ap
3. erminating modules e fa module has multiple connectors disconnect one at a time NOTE 120 ohm resistors may be needed to perform diagnostics Normal CAN Measurements HI LO H GND LO GND Normal Resistance measurement 600 kQ OC kQ OC KQ kilo Ohms OC open circuit Main Types of Issues Harness Issue Module Issue Harness amp Module Issue WV E Gd dete dd NOTE DO NOT REPLACE ANY COMPONENTS UNLESS IT IS SUPPORTED BY DIAGNOSIS NOTE Use legend below for flow charts on pages 3 6 and Table A on page 7 OC Open Circuit SC Short Circuit H High L Low Mid Middle Term Terminating V voltage DLC data link connector 2 7 ITB13 006 Troubleshooting Flowchart Does Consult list all Diag On CAN Yes Modules all the time CAN Bus wires and termination resistance are OK Cycle Ignition Go to A on page 4 What current CAN DTCs are shown in CONUSLT NOTE if no current DTCs are shown this TSB does not apply Reference the Electronic U1000 U1001 U1002 and Service Manual ESM for diagnosis of other CAN related DTCs intermittent issues UXXXX Check the following items U1010 Module was not connected Module has internally issue Module is not installed Replace the module that sets U1010 Wrong Part Number Module is not programmed Wrong configuration End Diagnosis 1 Go to B on See Claims Information page 6 3 7 ITB13 006 No it s Does CONSULT not com
4. municate with Diag on Yes CAN module s is intermittent CAN module s always missing Does CAN Bus Ves Check battery resistance 600 ignition and fuse powering DLC Is missing module a terminator module ue Check DLC ground Check terminator Check power feeds battery ignition fuses relay other module for Confirm good connection at front and back of DLC bent pin swapped pins backed out pins harness continuity ae aes as Check shorting pin Yes No Check to see if inline Check grounds Ea connectors are swapped CAN Bus is shorted Check to see if module or CAN circuits are was not connected swapped Measure Voltage Resist ance match to type in chart on page Check the following items Confirm vehicle battery voltage Re run diagnosis to verify issue Is resolved Measure Voltage Resistance match to type in table on page Fix the issue Re run diagnosis to verify issue Is End Diagnosis 3 See Claims Information Go to C on resolved page 5 End Diagnosis 2 See Claims Information 4 1 ITB13 006 C Does CAN BUS have open circuit Yes Disconnect all Diag On CAN modules Go to D on page 5 Replace each terminating module with 1200 resistor Measure Voltage from CAN H to L Does Voltage 0 Yes CAN Bus is shorted to intermittent signal Connect one 1 Diag ON CAN Module Check module diagnosis via
5. proximately B Approximately B e a a a a l l M eaNL sc ogton wa o vias Be es e O o w o w a a E T T ITB13 006
6. t yourselfers Qualified technicians are properly trained individuals who have the equipment tools safety instruction and know how to do a job properly and safely NOTE If you believe that a described condition may apply to a particular vehicle DO NOT assume that it does See your Infiniti dealer to determine if this applies to your vehicle 1 7 Helpful Tips e Always diagnose CAN communication codes first U1000 U1001 U1002 U1010 then network codes UXXXX and then all other codes e A quick method to test CAN communications is to operate the vehicle s functions such as Hazards Brakes Tachometer PRNDL Speedometer 4WD Difflock Seat Memory Power Back Door or High Beams e Ina low voltage situation less than 10V modules will stop communicating at different voltages e Integrated Power Distribution Module IPDM is a smart relay and fuse box It powers other modules in the same way fuses and relays do e CAN voltages can be checked via CONSULT e Missing Ignition 2 fuse or other high level fuses can cause CAN Diag Support Monitor to not work e High level fuses such as Ignition 1 Ignition 2 and Elec B power many modules e Pins terminals can be bent and still pass visual inspection e When troubleshooting a harness that has multiple inline connections section off the harness and isolate it one portion at a time Add a terminating resistor to the end of the harness in substitution of the t
Download Pdf Manuals
Related Search