DTC Troubleshooting

DTC PO607 (82): BCM Module Performance Problem

NOTE: Before you troubleshoot, record all freeze data, and review the general troubleshooting information.

1. Turn the ignition switch ON (II).
2. Check for Temporary DTCs or DTCs with the HDS.

Is DTC PI629 (79) indicated?

YES - Do the troubleshooting for DTC P1629 (79).

NO - Go to step 3.

3. Clear the DTC with the HDS.
4. Monitor the OBD STATUS for DTC PO607 (82) in the DTCs MENU with the HDS.

Does the screen indicate FAILED?

YES - Go to step 5.

NO - If the screen indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the BCM module. If the screen indicates NOT COMPLETED, keep the ignition switch ON (II) until a result comes on.

5. Update the BCM module if it does not have the latest software, or substitute a known-good BCM module.
6. Check for Temporary DTCs or DTCs with the HDS.

Is DTC PO607 (82) indicated?

YES - Check for poor connections or loose terminals at 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 7.

7. Monitor the OBD STATUS for DTC PO607 (82) 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 6, 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, 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.