Diagnostic Fault Information
WARNING: This page is about a different car, the 2009 Cadillac DTS. 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 |
B257A 00 |
1 |
1 |
- |
| Park Lamp Switch On |
B257A 00 |
B257A 00 |
B257A 00 |
- |
| Headlamp Switch On |
B257A 00 |
1 |
1 |
- |
| Headlamp Ground |
- |
1 |
- |
- |
| 1. Headlamps Malfunction |