Initial Inspection and Diagnostic Overview

Steering Column Switches





Special Tool(s)

Inspection and Verification
1. Verify the customer's concern by operating the ignition switch and multi-function switch.





2. Visually inspect for obvious signs of mechanical and electrical damage.
3. If inspection reveals an obvious concern that is readily identified, repair the concern before continuing with Inspection and Verification.
4. If the concern remains after inspection, connect the diagnostic tool to the data link connector located beneath the instrument panel to perform Data Link Diagnostics Test. If the diagnostic tool responds with NO RESPONSE/NOT EQUIPPED for the lighting control module (LCM), go to Pinpoint Test A. If the Data Link Diagnostics Test is passed for the LCM module, retrieve continuous DTCs and execute Self-Test Diagnostics for the LCM module to retrieve current DTCs. Test A: No Communication With the Module
5. If the self-test is passed and no DTCs are retrieved, go to Symptom Chart to continue diagnostics.
6. If the LCM cannot be accessed by the diagnostic tool, go to Pinpoint Test A. Test A: No Communication With the Module
Service Bay Diagnostic System (SBDS) may also be used to diagnose this system.