DTC 80

DTC U1207 (80): IMA-CAN Malfunction A/C Compressor Driver-BCM Module)
1. Turn the ignition switch ON (II).
2. Check for IMA system Temporary DTCs or DTCs with the HDS.
Is DTC U0037 (99) indicated?
YES - Do the troubleshooting for DTC U0037 (99).
NO - Go to step 3.

3. Clear the DTC with the HDS.
4. Check for IMA system Temporary DTCs or DTCs with the HDS.
Is DTC U1207 (80) 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 BCM module, A/C compressor driver and the PCM.

5. Turn the ignition switch OFF.
6. Turn the battery module switch OFF.
7. Remove the IPU lid.
8. Check the A/C compressor driver 4P connector.
Is the connector OK?
YES - Go to step 9.
NO - Repair the connector, then go to step 18.

9. Check the No. 22 IG1 HAC (A/C) (7.5 A) fuse in the under-dash fuse/relay box.
Is the fuse OK?
YES - Go to step 10.
NO - Repair short to ground in the wire between the A/C compressor driver and the No. 22 IG1 HAC (A/C) (7.5 A) fuse. Also replace the No. 22 IG1 HAC (A/C) fuse, then go to step 18.

10. Disconnect the A/C compressor driver 4P connector.
11. Disconnect BCM module connector A (40P).
12. Check for continuity between BCM module connector terminal A20 and A/C compressor driver 4P connector terminal No. 2.





Is there continuity?
YES - Go to step 13.
NO - Repair open in the wire between the BCM module (A20) and the A/C compressor driver, then go to step 18.

13. Check for continuity between BCM module connector terminal A40 and A/C compressor driver 4P connector terminal No. 3.





Is there continuity?
YES - Go to step 14.
NO - Repair open in the wire between the BCM module A40) and the A/C compressor driver, then go to step 18.

14. Turn the ignition switch ON (II).
15. Measure voltage between A/C compressor driver 4P connector terminal No. 4 and body ground.





Is there 12 V battery voltage?
YES - Go to step 16.
NO - Repair open in the wire between the A/C compressor driver and the No. 22 IG1 HAC (A/C) (7.5 A) fuse, then go to step 18.

16. Turn the ignition switch OFF.
17. Check for continuity between A/C compressor driver 4P connector terminal No. 1 and body ground.





Is there continuity?
YES - Replace the A/C compressor driver, then go to step 18.
NO - Repair open in the wire between the A/C compressor driver and G902, then go to step 18.

18. Turn the ignition switch OFF.
19. Reconnect all connectors.
20. Reinstall the IPU lid, then turn the battery module switch ON.
21. Turn the ignition switch ON (II).
22. Reset the BCM module with the HDS.
23. Check for IMA system Temporary DTCs or DTCs with the HDS.
Are any Temporary DTCs or DTCs indicated?
YES - If DTC U1207 (80) is indicated, check for poor connections or loose terminals at the BCM module, the A/C compressor driver, and the 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.