With Navigation System

DTC U0155: F-CAN Malfunction (Gauge Control Module-ECM/PCM) (2006 model)

DTC U1102: F-CAN Malfunction (Bus-off) (2006 model)

With Navigation System

1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Check for Temporary DTCs or DTCs with the HDS.

Is DTC U0155 and/or U1102 indicated?

YES - Go to step 4.

NO - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the gauge control module, the navigation unit, and the ECM/PCM.

4. Check for Body Electrical DTCs in the DTCs MENU with the HDS.

Is DTC B1168, B1169 and/or B1178 indicated?

YES - Go to step 5.

NO - Do the gauge control module input test.

5. Turn the ignition switch OFF.
6. Jump the SCS line with the HDS.
7. Remove the gauge control module.
8. Disconnect the gauge control module 36P connector.
9. Disconnect the navigation unit 20P connector.
10. Disconnect ECM/PCM connector E (31P).




11. Check for continuity between gauge control module 36P connector terminals No. 1, No. 19 and body ground individually.

Is there continuity?

YES - Repair short in the wire between the gauge control module, the navigation unit, and the ECM/PCM (E11(E24)*), then go to step 18.

NO - Go to step 12.

*:CANL line




12. Check for continuity between gauge control module 36P connector terminal No. 1 and ECM/PCM connector terminal E11, and between gauge control module 36P connector terminal No. 19 and ECM/PCM connector terminal E24 individually.

Is there continuity?

YES - Go to step 13.

NO - Repair open in the wire between the gauge control module and the ECM/PCM (E11(E24)*), then go to step 18.

*: CANL line




13. Check for continuity between ECM/PCM connector terminals E11 and E24.

Is there continuity?

YES - Repair short in the wires between ECM/PCM connector terminals E11 and E24, then go to step 18.

NO - Go to step 14.

14. Reconnect ECM/PCM connector E (31P) and the gauge control module 36P connector.
15. Turn the ignition switch ON (II).
16. Clear the DTC with the HDS.
17. Check for Temporary DTCs or DTCs with the HDS.

Is DTC U0155 and/or U1102 indicated?

YES - Go to step 23.

NO - Replace the navigation unit, then go to step 18.

18. Reconnect all connectors.
19. Turn the ignition switch ON (II).
20. Reset the ECM/PCM with the HDS.
21. Do the ECM/PCM idle learn procedure.
22. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC U0155 and/or U1102 is indicated, check for poor connections or loose terminals at the gauge control module, the navigation unit, and the ECM/PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - Troubleshooting is complete.

23. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM.
24. Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC U0155 and/or U1102 is indicated, check for poor connections or loose terminals at the gauge control module, the navigation unit, and the ECM/PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM.