Circuit/System Verification
- Ensure that the following cruise control switches are not stuck in the engaged position:
- ON/OFF switch
- - Set switch
- + RES switch
- Inspect for proper operation of the stop lamps. Refer to Exterior Lighting Systems Description and Operation .
- Rotate the steering wheel to both steering stops while activating each cruise control switch separately. With a scan tool, observe the Cruise Control Switch parameter in the BCM. Ensure that each cruise control switch activated and that each displayed switch position in the Cruise Control Switch parameter do not match as the steering wheel is turned.
- If the displayed switch positions in the Cruise Control Switch parameter match with each depressed switch accordingly, replace the ECM (non 2.0L)/PCM (2.0L).