Diagnostic Code Index
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1023 | B1023 00: Integral Switch Performance |
| DTC B2976 | B2976 00: Driver Door Ajar Circuit |
| DTC B3125, B3130, or B3135 | B3125 00: Left Front/Driver Door Only Unlock Circuit B3130 00: All Door Unlock Circuit B3135 00: All Door Lock Circuit |
| DTC B3140 | B3140 00: Driver Unlock Switch Circuit |