Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC B3884
| Circuit |
Short to Ground |
Open/High Resistance |
Short to Voltage |
Signal Performance |
| CHMSL Relay Control |
B3884 00 |
1 |
2 |
- |
| CHMSL Control |
1 |
1 |
2 |
- |
| CHMSL Relay Ground |
- |
1 |
- |
- |
| CHMSL Ground |
- |
1 |
- |
- |
1. Center High Mounted Stop Lamp (CHMSL) Inoperative
2. Center High Mounted Stop Lamp (CHMSL) Always On |