VIN Not Learned Correctly (FCM)

VIN NOT LEARNED CORRECTLY (FCM)

WHEN MONITORED
With the ignition on.

SET CONDITION
The VIN is programmed into the FCM via a PCI bus message from the PCM/ECM. When learning the VIN, the FCM computes a check digit to verify that the VIN learned was valid. If not valid, the DTC will set and the VIN will not be learned.

POSSIBLE CAUSES
- Front control module

Diagnostic Test

1. ACTIVE DTC
Turn the ignition on.
With the DRB, erase the FCM DTC's.
Turn the ignition off then turn the ignition on and wait approximately 1 minute.
With the DRB, read the FCM DTC's.

Q: Did this DTC reset?

YES: Replace the Front Control Module. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Test Complete.