Diagnostic Aids
WARNING: This page is about a different car, the 1999 Buick Regal and 1999 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
The following conditions may cause an intermittent:
- Intermittent short to ground or open in circuit No. 1970 (Pink/White wire).
- Internal short to ground or open in DRL control module.
- Internal short to ground or open in BCM.