Diagnostic Fault Information
WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit |
Short to Ground |
Open/High Resistance |
Short to Voltage |
Signal Performance |
| Headlamp Switch Off Signal |
B257A 00 |
3 |
1 |
- |
| Headlamp Switch On Signal |
B257A 00 |
2 |
1 |
- |
| Headlamp Ground |
- |
2, 3 |
- |
- |
1. Headlamps Always ON
2. Headlamps Inoperative From Switch
3. Unable To Turn OFF Automatic Headlamps |