Diagnostic Aids
WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Thoroughly inspect the wiring and the connectors. An incomplete inspection of the wiring and the connectors may result in a misdiagnosis, causing a part replacement with the reappearance of the malfunction.
The following are possible causes of the malfunction:
- Low battery voltage
- High battery voltage
- An open or high resistance in the ignition positive voltage circuit
- An open or high resistance in the motor or solenoid ground circuits
- An internal EBCM malfunction
If an intermittent malfunction exists, refer to TESTING FOR INTERMITTENT AND POOR CONNECTIONS in Wiring Systems.