Integrated Motor Assist
DTC U0110 (101): F-CAN Malfunction (BCM Module-MCM)NOTE:
- Before you troubleshoot, record all freeze data, and review the general troubleshooting information.
- If DTC U1205 (75) is stored at the same time as DTC U0110 (101) and U0028 (108), the MCM relay is OFF forcibly.
- Information marked with an asterisk (*) applies to the 06-07 models.
1. Turn the ignition switch ON (II).
2. Check for Temporary DTCs or DTCs with the HDS.
Is DTC U0028 (108) indicated?
YES - Do the troubleshooting fur DTC U0028 (108).
NO - Go to step 3.
3. Clear the DTC with the HDS.
4. Check for Temporary DTCs or DTCs with the HDS.
Is DTC U0110 (101) indicated?
YES - Go to step 5.
NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the PCM, the BCM module, and the MCM.
5. Check for Temporary DTCs or DTCs with the HDS.
Is DTC U1205 (75) indicated?
YES - Go to step 14.
NO - Go to step 6.
6. Turn the ignition switch OFF.
7. Turn the battery module switch OFF.
8. Remove the IPU lid.
9. Check for poor connections or loose terminals at the MCM connector.
Are the connections OK?
YES - Go to step 10.
NO - Repair the connections, then go to step 27.
10. Remove the BCM module.
11. Disconnect the MCM 20P connector
12. Check for continuity between BCM module connector terminal A1 and MCM 20P connector terminal No. 20, and between BCM module connector terminal A21 and MCM 20P connector terminal No. 10.
Is there continuity?
YES - Go to step 35.
NO - Repair open in the wire between the BCM module (Al, A21) and the MCM (No. 10, No. 20), then go to step 27.
13. Turn the ignition switch OFF.
14. Turn the battery module switch OFF.
15. Remove the IPU lid.
16. Remove the BCM module, then check for continuity between body ground and MCM 20P connector terminals No. 2 and No. 9* individually.
Is there continuity?
YES - Go to step 17.
NO - Repair open in the wire between the MCM (No. 2, No. 9) and G102, then go to step 27.
17. Disconnect the MCM 20P connector.
18. Reconnect BCM module connector A.
19. Turn the ignition switch ON (II), then measure voltage between MCM 20P connector terminals No. 18 and No. 19 and body ground within 1 second.
Is there 12 V battery voltage?
YES - Go to step 40.
NO - Go to step 20.
20. Check MCM relay 2.
Is the relay OK?
YES - Go to step 21.
NO - Replace MCM relay 2, then go to step 27.
21. Check the No. 61 +B IMA2 (10 A) fuse.
Is the fuse OK?
YES - Go to step 22.
NO - Replace the No. 61 +B IMA2 (10 A) fuse, then go to step 27. Repair short to ground in the wire between the No. 61 +B IMA2 (10 A) fuse and MCM relay 2, then go to step 27.
22. Measure voltage between MCM relay 2 4P connector terminal No. 2 and body ground.
Is there 12 V battery voltage?
YES - Go to step 23.
NO - Repair open in the wire between MCM relay 2 and the No. 61 +B IMA2 (10 A) fuse, then go to step 27.
23. Check for continuity between MCM 20P connector terminals No. 18 and No. 19, and MCM relay 2 4P connector terminal No. 1.
Is there continuity?
YES - Go to step 24.
NO - Repair open in the wire between MCM relay 2 and the MCM (No. 18, No. 19), then go to step 27.
24. Disconnect BCM module connector A (40P).
25. Check for continuity between BCM module connector terminal A12 and MCM relay 2 4P connector terminal No. 3.
Is there continuity?
YES - Go to step 26.
NO - Repair open in the wire between MCM relay 2 and the BCM module (A12), then go to step 27.
26. Check for continuity between MCM relay 1 4P connector terminal No. 1 and MCM relay 2 4P connector terminal No. 4.
Is there continuity?
YES - Go to step 35.
NO - Repair open in the wire between MCM relay 1 and MCM relay 2, then go to step 27.
27. Turn the ignition switch OFF.
28. Reconnect all connectors.
29. Reinstall the IPU lid, then turn the battery module switch ON.
30. Turn the ignition switch ON (II).
31. Clear the DTC with the HDS.
32. Check for Temporary DTCs or DTCs with the HDS.
Is DTC U0110 (101) indicated?
YES - Check for poor connections or loose terminals at the PCM, the BCM module, and the MCM, then go to step 1.
NO - Go to step 33.
33. Monitor the OBD STATUS for DTC U0110 (101) in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 32, go to the indicated DTCs troubleshooting.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at the PCM, the BCM module, and the MCM, then go to step 1. If the screen indicates NOT COMPLETED, keep the ignition switch ON (II) until a result comes on.
34. Turn the ignition switch OFF.
35. Reconnect all connectors.
36. Reinstall the IPU lid, then turn the battery module switch ON.
37. Update the BCM module if it does not have the latest software, or substitute a known-good BCM module.
38. Check for Temporary DTCs or DTCs with the HDS.
Is DTC U0110 (101) indicated?
YES - Check for poor connections or loose terminals at the PCM, the BCM module, and the MCM. If the BCM module was updated, substitute a known-good BCM module, then recheck. If the BCM module was substituted, go to step 1.
NO - Go to step 39.
39. Monitor the OBD STATUS for DTC U0110 (101) in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - If the BCM module was updated, troubleshooting is complete. If the BCM module was substituted, replace the original BCM module. If any other Temporary DTCs or DTCs were indicated in step 38, go to the indicated DTC s troubleshooting.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at the PCM, the BCM module, and the MCM. If the BCM module was updated, substitute a known-good BCM module, then recheck. If the BCM module was substituted, go to step 1. If the screen indicates NOT COMPLETED, keep the ignition switch ON (II) until a result comes on.
40. Turn the ignition switch OFF.
41. Reconnect all connectors.
42. Reinstall the IPU lid, then turn the battery module switch ON.
43. Update the MCM if it does not have the latest software, or substitute a known-good MCM.
44. Check for Temporary DTCs or DTCs with the HDS.
Is DTC U0110 (101) indicated?
YES - Check for poor connections or loose terminals at the PCM, the BCM module, and the MCM. If the MCM was updated, substitute a known-good MCM, then recheck. If the MCM was substituted, go to step 1.
NO - Go to step 45.
45. Monitor the OBD STATUS for DTC U0110 (101) in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - If the MCM was updated, troubleshooting is complete. If the MCM was substituted, replace the original MCM. If any other Temporary DTCs or DTCs were indicated in step 44, go to the indicated DTC's troubleshooting.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at the PCM, the BCM module, and the MCM. If the MCM was updated, substitute a known-good MCM, then recheck. If the MCM was substituted, go to step 1. If the screen indicates NOT COMPLETED, keep the ignition switch ON (II) until a result comes on.