Diagnostic Aids
WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
- Verify that the brake pedal position sensor switch is adjusted properly. Refer to Brake Pedal Position Sensor Calibration Description and Operation .
- Test drive the vehicle if a switch or circuit condition cannot be located. An intermittent condition may be duplicated during a test drive.
- For an intermittent, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.