P0ACC
DTC Troubleshooting: P0ACC (53)
DTC P0ACC (53):
Battery Module Temperature Sensor 3 Circuit Low Voltage
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. Check the IMA BATTERY MODULE TEMPERATURE SENSOR 3 VOLTAGE (IMA BATTERY MODULE TEMPERATURE SENSOR 3) in the DATA LIST with the HDS.
Is about 0.05 V or less (194 °F (90 °C) or more) indicated?
YES -
Go to step 3.
NO -
Intermittent failure, the system is OK at this time. Check for poor connections, loose terminals, or damaged insulation at the battery module and the BCM module.�
3. Turn the ignition switch to LOCK (0).
4. Turn the battery module switch OFF.
5. Remove the IPU lid IPU Lid Removal/Installation.
6. Disconnect the junction board 12P connector.
7. Turn the ignition switch to ON (II).
8. Check the IMA BATTERY MODULE TEMPERATURE SENSOR 3 VOLTAGE (IMA BATTERY MODULE TEMPERATURE SENSOR 3) in the DATA LIST with the HDS.
Is about 0.05 V or less (194 °F (90 °C) or more) indicated?
YES -
Go to step 9.
NO -
Replace the battery module Service and Repair, then go to step 12.
9. Turn the ignition switch to LOCK (0).
10. Disconnect BCM module connector A (40P).
11. Check for continuity between BCM module connector terminal A15 and body ground.
Is there continuity?
YES -
Repair short to ground in the wire between the battery module and the BCM module (A15), then go to step 12.
NO -
Go to step 19.
12. Turn the ignition switch to LOCK (0).
13. Reconnect all connectors.
14. Reinstall the IPU lid IPU Lid Removal/Installation, then turn the battery module switch ON.
15. Turn the ignition switch to ON (II).
16. Clear the DTC with the HDS.
17. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0ACC (53) indicated?
YES -
Check for poor connections, loose terminals, or damaged insulation at the battery module and the BCM module, then go to step 1.
NO -
Go to step 18.
18. Monitor the OBD STATUS for DTC P0ACC (53) 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 17, go to the indicated DTC's troubleshooting.�
NO -
If the screen indicates FAILED, check for poor connections, loose terminals, or damaged insulation at the battery module and the BCM module, then go to step 1. If the screen indicates NOT COMPLETED, keep the ignition switch ON (II) until a result comes on.
19. Reconnect all connectors.
20. Reinstall the IPU lid IPU Lid Removal/Installation, then turn the battery module switch ON.
21. Update the BCM module if it does not have the latest software Testing and Inspection, or substitute a known-good BCM module.
22. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0ACC (53) indicated?
YES -
Check for poor connections or loose terminals at the battery module and the BCM module. 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 23.
23. Monitor the OBD STATUS for DTC P0ACC (53) 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 22, go to the indicated DTC's troubleshooting.�
NO -
If the screen indicates FAILED, check for poor connections, loose terminals, or damaged insulation at the battery module and the BCM module. 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.