Initial Inspection and Diagnostic Overview

Steering Column Switches

Special Tool(s):

Special Tool(s)
The ignition switch is mounted below the steering column and is activated using the ignition key and rotating the ignition switch lock cylinder on the steering column.

If equipped with manual transmission. the key release button prevents rotation of the ignition switch lock cylinder to LOCK or ACC positions unless the key release button is depressed.

Inspection and Verification
1. Verify the customer concern by operating the multifunction switch or ignition switch.





2. Visually inspect for obvious signs of mechanical and electrical damage.
If equipped with manual transmission, the key release button prevents rotation of the ignition switch lock cylinder to LOCK or ACC positions unless the key release button is depressed.
3. If the concern remains after the inspection, connect the diagnostic tool to the Data Link Connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position.
4. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
5. Carry out the DATA LINK DIAGNOSTICS TEST. If the diagnostic tool responds with:
- CKT914, CKT915 or CKT693 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network.
- NO RESP/NOT EQUIP for INSTRUMENT CLUSTER, go to Instrument Panel, Gauges and Warning Indicators.
- SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs, and carry out the self-test diagnostics for the instrument cluster.
6. If the DTCs retrieved are related to the concern, go to the Instrument Cluster Diagnostic Trouble Code (DTC) Index to continue diagnostics. [1][2]Diagnostic Trouble Code Descriptions
7. It no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures