Diesel Data: Automotive Repair

Part 2





NETWORKING: CAN COMMUNICATION SYSTEM: Check CAN Bus Line for Short to GND
- Check CAN Bus Line for Short to GND


12. CHECK FOR SHORT TO GND IN CAN BUS WIRE (COMBINATION METER MAIN WIRE)

(a) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - COMBINATION METER)
OK -- Continue to next step.

13. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NETWORK GATEWAY ECU BRANCH WIRE)

NOTICE:
For vehicles without the network gateway ECU, go to "CHECK FOR SHORT TO GND IN CAN BUS WIRE (4WD CONTROL ECU BRANCH WIRE)".

(a) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- CHECK FOR SHORT TO GND IN CAN BUS WIRE (NETWORK GATEWAY ECU BRANCH WIRE)
OK -- Continue to next step.

14. CHECK FOR SHORT TO GND IN CAN BUS WIRE (4WD CONTROL ECU BRANCH WIRE)

(a) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- CHECK FOR SHORT TO GND IN CAN BUS WIRE (4WD CONTROL ECU BRANCH WIRE)
OK -- Continue to next step.

15. CHECK FOR SHORT TO GND IN CAN BUS WIRE (ACCESSORY GATEWAY BRANCH WIRE)

(a) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





Result:





C -- CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY)

B -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY)

A -- REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - CAN NO. 2 JUNCTION CONNECTOR)

16. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU)

(a) Disconnect the power steering ECU connector.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU)

OK -- REPLACE POWER STEERING ECU Removal

17. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)

(a) Disconnect the steering angle sensor connector.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)

OK -- REPLACE STEERING ANGLE SENSOR Removal

18. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - YAW RATE SENSOR)

(a) Disconnect the yaw rate sensor connector.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - YAW RATE SENSOR)

OK -- REPLACE YAW RATE SENSOR Removal

19. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU)

(a) Disconnect the main body ECU connector.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU)

OK -- REPLACE MAIN BODY ECU

20. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER)

(a) Disconnect the air conditioning amplifier connector.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER)

OK -- REPLACE AIR CONDITIONING AMPLIFIER Removal

21. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)

(a) Disconnect the center airbag sensor assembly connector.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)

OK -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal

22. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - COMBINATION METER)

(a) Disconnect the combination meter connector.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - COMBINATION METER)

OK -- REPLACE COMBINATION METER Removal

23. CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY)

(a) Disconnect the accessory gateway connector from the accessory.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY)

OK -- REPLACE THE ACCESSORY

24. CHECK FOR SHORT TO GND IN CAN BUS WIRE (NETWORK GATEWAY ECU BRANCH WIRE)

(a) Disconnect the network gateway ECU connector.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)

OK -- REPLACE NETWORK GATEWAY ECU Removal

25. CHECK FOR SHORT TO GND IN CAN BUS WIRE (4WD CONTROL ECU BRANCH WIRE)

(a) Disconnect the 4WD control ECU connector.





(b) Measure the resistance according to the value(s) in the table below.





HINT
The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance:





NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - 4WD CONTROL ECU)

OK -- REPLACE 4WD CONTROL ECU Removal