IMA System (BCM)
DTC Troubleshooting: P0562 (15)
DTC P0562 (15):
BCM Module System Low Voltage
NOTE:
- To verify this is the appropriate troubleshooting procedure, jump the SCS with the HDS and read the flash code, or change the HDS setup to show HM codes and read the HM code.
- Before you troubleshoot, record all freeze data, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.
1. Inspect the No. 23 BACK UP (10 A) fuse in the under-hood fuse/relay box.
Is the fuse OK?
YES -
Go to step 2.
NO -
Go to step 9.
2. Turn the ignition switch to ON (II).
3. Check the BCM BACK UP VOLTAGE in the DATA LIST with the HDS.
Is there less than 4.0 V?
YES -
Go to step 4.
NO -
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the No. 23 BACK UP (10 A) fuse and the BCM module.�
4. Turn the ignition switch to LOCK (0).
5. Turn the battery module switch OFF High Voltage Safety.
6. Remove the IPU lid IPU Lid Removal/Installation.
7. Disconnect BCM module connector A (40P).
8. Measure the voltage between body ground and BCM module connector terminal A4.
Is there 12 V battery voltage?
YES -
Go to step 19.
NO -
Repair open in the wire between the No. 23 BACK UP (10 A) fuse and the BCM module (A4), then go to step 13.
9. Turn the battery module switch OFF High Voltage Safety.
10. Remove the IPU lid IPU Lid Removal/Installation.
11. Disconnect BCM module connector A (40P).
12. Check for continuity between body ground and BCM module connector terminal A4.
Is there continuity?
YES -
Repair short in the wire between the No. 23 BACK UP (10 A) fuse and the BCM module (A4), and replace the No. 23 BACK UP (10 A) fuse. Then go to step 13.
NO -
Go to step 20.
13. Reconnect all connectors.
14. Reinstall the IPU lid IPU Lid Removal/Installation, then turn the battery module switch ON High Voltage Safety.
15. Turn the ignition switch to ON (II).
16. Clear the DTC with the HDS Initial Inspection and Diagnostic Overview.
17. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0562 (15) indicated?
YES -
Check for poor connections or loose terminals at the No. 23 BACK UP (10 A) fuse and the BCM module, then go to step 1.
NO -
Go to step 18.
18. Monitor the OBD STATUS for DTC P0562 (15) 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 or loose terminals at the No. 23 BACK UP (10 A) fuse 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. Turn the ignition switch to LOCK (0).
20. Reconnect all connectors.
21. Reinstall the IPU lid IPU Lid Removal/Installation, then turn the battery module switch ON High Voltage Safety.
22. 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.
23. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0562 (15) indicated?
YES -
Check for poor connections or loose terminals at the No. 23 BACK UP (10 A) fuse and the BCM module. If the BCM module was updated, substitute a known-good BCM module Initial Inspection and Diagnostic Overview, then recheck. If the BCM module was substituted, go to step 1.�
NO -
Go to step 24.
24. Monitor the OBD STATUS for DTC P0562 (15) 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 23, go to the indicated DTC's troubleshooting.�
NO -
If the screen indicates FAILED, check for poor connections or loose terminals at the No. 23 BACK UP (10 A) fuse and the BCM module. If the BCM module was updated, substitute a known-good BCM module Initial Inspection and Diagnostic Overview, 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.