Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit/System Description
The instrument panel cluster (IPC) illuminates the Service Column Lock indicator by supplying ground to the lamp. The steering column lock control module (SLCM) sends a serial data messages to the IPC, in order to command the indicator ON or OFF.
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Steering Wheel and Column Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for Scan Tool Information
Circuit Verification
Ignition ON, observe the service column lock indicator to turn ON then OFF during the IPC bulb test.
Circuit/System Testing
Ignition On, with a scan tool command the Scan Tool IPC display test ON and OFF. The service column lock indicator should turn ON and OFF.
| ⇒ | If the service column lock warning indicator does not turn ON and OFF, replace the IPC. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SLCM or IPC replacement, setup, and programming
