DTC Troubleshooting
DTC Troubleshooting: P0AC0 (65)
DTC P0AC0 (65):
Battery Current Sensor Circuit Malfunction
NOTE: Before you troubleshoot, record all freeze data, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), and wait 1 minute.
4. Turn the ignition switch to ON (II).
5. Monitor the OBD STATUS for DTC P0AC0 (65) in the DTCs MENU with the HDS.
Does the screen indicate FAILED?
YES -
Go to step 6.
NO -
If the screen indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the battery current sensor and the BCM module. If the screen indicates NOT COMPLETED, go to step 1.
6. Turn the ignition switch to LOCK (0).
7. Turn the battery module switch OFF High Voltage Safety.
8. Remove the IPU lid IPU Lid Removal/Installation.
9. Check the BCM module and the junction board 12P connections.
Are the connections OK?
YES -
Go to step 10.
NO -
Repair the connections, then go to step 18.
10. Turn the ignition switch to ON (II).
11. Measure the voltage between BCM module connector terminals A5 and A7.
Is there 4-5 V?
YES -
Replace the battery module Service and Repair, then go to step 17.
NO -
Go to step 12.
12. Turn the ignition switch to LOCK (0).
13. Disconnect BCM module connector A (40P).
14. Disconnect the junction board 12P connector.
15. Check for continuity between BCM module connector terminal A5 and body ground.
Is there continuity?
YES -
Repair short to ground in the wire between the junction board and the BCM module (A5), then go to step 17.
NO -
Go to step 16.
16. Check for continuity between junction board 12P connector terminal No. 6 and BCM module connector terminal A5.
Is there continuity?
YES -
Go to step 26.
NO -
Repair open in the wire between the BCM module (A5) and the junction board, then go to step 17.
17. Turn the ignition switch to LOCK (0).
18. Reconnect all connectors.
19. Reinstall the IPU lid IPU Lid Removal/Installation, then turn the battery module switch ON High Voltage Safety.
20. Turn the ignition switch to ON (II).
21. Clear the DTC with the HDS Initial Inspection and Diagnostic Overview.
22. Turn the ignition switch to LOCK (0), and wait 1 minute.
23. Turn the ignition switch to ON (II).
24. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0AC0 (65) indicated?
YES -
Check for poor connections or loose terminals at the battery current sensor and the BCM module, then go to step 1.
NO -
Go to step 25.
25. Monitor the OBD STATUS for DTC P0AC0 (65) in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES -
Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 24, go to the indicated DTC's troubleshooting.�
NO -
If the screen indicates FAILED, check for poor connections or loose terminals at the battery current sensor and the BCM module, then go to step 1. If the screen indicates NOT COMPLETED, go to step 22.
26. Reconnect all connectors.
27. Reinstall the IPU lid IPU Lid Removal/Installation, then turn the battery module switch ON High Voltage Safety.
28. Update the BCM module if it does not have the latest software Testing and Inspection, or substitute a known-good BCM module Initial Inspection and Diagnostic Overview.
29. Turn the ignition switch to LOCK (0), and wait 1 minute.
30. Turn the ignition switch to ON (II).
31. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0AC0 (65) indicated?
YES -
Check for poor connections or loose terminals at the battery current sensor and the BCM module. If the BCM module was updated, substitute a known-good BCM module Initial Inspection and Diagnostic Overview, then go to step 29. If the BCM module was substituted, go to step 1.
NO -
Go to step 32.
32. Monitor the OBD STATUS for DTC P0AC0 (65) 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 Service and Repair. If any other Pending or Confirmed DTCs were indicated in step 31, go to the indicated DTC's troubleshooting.�
NO -
If the screen indicates FAILED, check for poor connections or loose terminals at the BCM module. If the BCM module was updated, substitute a known-good BCM module Initial Inspection and Diagnostic Overview, then go to step 29. If the BCM module was substituted, go to step 1. If the screen indicates NOT COMPLETED, go to step 29.