Diagnostic Aids
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- If the DTC is a history DTC, the fault may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
- The following conditions may cause an intermittent malfunction to occur:
- An intermittent short to ground or open in the backup lamp control circuit.
- The backup lamp relay coil is intermittently shorted to ground or open.
- The BCM is intermittently shorted to ground or open.