Inspection and Verification

Steering Column

Inspection and Verification

1. Verify the customer concern.

2. Visually inspect for obvious signs of mechanical or electrical damage.

3. Visually inspect for obstructions preventing column movement.

Visual Inspection Chart





4. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

5. NOTE: Make sure to use the latest scan tool software release.

If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).

6. 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 VCM:

- check the VCM connection to the vehicle.

- check the scan tool connection to the VCM.

- refer to Module Communications Network Testing and Inspection, No Power To The Scan Tool, to diagnose no power to the scan tool.

7. 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 Testing and Inspection, The PCM Does Not Respond To The Scan Tool, to diagnose no response from the PCM.

8. Carry out the network test.
- If the scan tool responds with no communication for one or more modules, refer to Module Communications Network Testing and Inspection.

- If the network test passes, proceed with module self-test diagnostics.

9. Carry out the self-test diagnostics for the SCCM.

10. If the DTCs retrieved are related to the concern, go to Steering Column Control Module (SCCM) DTC Chart Steering Column. For all other SCCM DTCs, refer to the Master DTC Chart in Steering Column Switches Testing and Inspection.

11. If no DTCs related to the concern are retrieved, GO to Symptom Chart. Steering Column