Cruise Control Inoperative/Malfunctioning: Notes
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
Important: To avoid misdiagnosis:
- Inspect for proper operation of the brake lamps.
- Inspect throttle linkage for mechanical binding which could cause the system to malfunction.
- Inspect cruise control adjustment, should have minimum slack.
- Inspect for stored Diagnostic Trouble Codes DTCs in the PCM.
- EMI on the speed sensor signal circuit may cause erratic cruise control operation.