Inspection and Verification

Visually inspect for obvious signs of mechanical or electrical damage.

VISUAL INSPECTION TABLE

Mechanical	Electrical
Power column tilt switch Power column tilt motor Steering column Steering column shrouds	Wiring, terminals or connectors Driver Seat Module (DSM)

If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
NOTE: Make sure to use the latest scan tool software release.
If the scan tool does not communicate with the VCM :
- check the VCM connection to the vehicle.
- check the scan tool connection to the VCM .
- refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no power to the scan tool.
NOTE: The Vehicle Communication Module (VCM) LED prove out confirms power and ground from the DLC are provided to the VCM .
If the scan tool does not communicate with the vehicle:
- verify the ignition is ON.
- verify the scan tool operation with a known good vehicle.
- refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the PCM.
Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
- If the network test passes, retrieve and record Continuous Memory Diagnostic Trouble Codes (CMDTCs).
Clear the CMDTCs and carry out the self-test diagnostics for the DSM .
If the DTCs retrieved are related to the concern, go to DRIVER SEAT MODULE (DSM) DTC TABLE . For all other DTCs, refer to the Master DTC Table in MULTIFUNCTION ELECTRONIC MODULES .
If no DTCs related to the concern are retrieved, GO to SYMPTOM TABLE .