Steering Column Switches

Steering Column Switches

Refer to Vehicle/Diagrams for schematic and connector information.

Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.

Visual Inspection Chart:

NOTE: For multi-function switch concerns, refer to one of the following:

^ Exterior Lighting.
^ Wipers and Washers.

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 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. Carry out the diagnostic tool data link test. If the diagnostic tool responds with:
^ CAN, SCP or ISO circuit fault; all electronic control units no response/not equipped, refer to Information Bus (Module Communications Network).
^ No response/not equipped for the front electronic module (FEM), refer to Body Control Systems (Multifunction Electronic Control Modules).
^ No response/not equipped for the instrument cluster module (ICM), refer to Instrument Panel, Gauges and Warning Indicators.

5. If DTCs are present, refer to Body Control Systems (Multifunction Electronic Control Modules) for FEM related DTCs, or Instrument Panel, Gauges and Warning Indicators for ICM related DTCs.
6. If no DTCs are present, GO to Symptom Chart to continue diagnostics. Symptom Related Diagnostic Procedures