Diagnostic Test

CHECK THE VEHICLE CONFIGURATION

NOTE:

The DTC must be active and no BUS communication DTCs present before performing this test. If BUS communication DTCs are present, perform there respective test first. If the DTC is stored, erase the DTC and cycle the ignition. If the DTC resets and changes to active, then proceed.

With the scan tool, check the vehicle configuration stored in the Body Control Module (BCM).
With the scan tool, check the vehicle configuration stored in the Drivetrain Control Module (DTCM).
Pick the answer that best describes your findings:

BCM has wrong or no vehicle configuration.
- With the scan tool, program the proper vehicle configuration in the BCM.
- Perform the DTCM VERIFICATION TEST. Refer to: DTCM VERIFICATION TEST .
DTCM has wrong vehicle configuration but BCM has correct configuration.
- Replace the DTCM in accordance with the Service information. Refer to: DRIVETRAIN CONTROL MODULE (DTCM), REMOVAL AND INSTALLATION .
- Perform the DTCM VERIFICATION TEST. Refer to: DTCM VERIFICATION TEST .