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 open or short to voltage in circuit No. 439 (Pink wire), No. 806 (Purple wire) or No. 1500 (Purple wire).
- Poor connections.
- BCM is continuously detecting battery voltage on these circuits.
- BCM never detects battery voltage on these circuits.