Test Description
WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
The numbers listed below refer to step numbers in the diagnostic procedure:
- 3 - This step attempts to repeat the condition that set the DTC.
- 5 - This step attempts to repeat the condition in the engine wiring harness.
- 6 - This step determines if a condition exists with the PCM or TFT sensor.