Diagnostic Fault Information
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.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Stop Lamp Relay Control | B3445 00 | 1 | 1 | - |
| Tail/Stop Lamp Control - Left | 1 | 1 | 1 | - |
| Tail/Stop Lamp Control - Right | 1 | 1 | 1 | - |
| Stop Lamp Switch Signal | 1 | 1 | 1 | - |
| Stop Lamp Switch B+ Voltage Reference | B1395 03, B3600 03 | 1 | 1 | - |
| Stop Lamp Relay Switch B+ | 1 | 1 | - | - |
| Center High Mounted Stop Lamp (CHMSL) Ground | - | 2 | - | - |
| Tail/Stop Lamp Ground - Left | - | 1 | - | - |
| Tail/Stop Lamp Ground - Right | - | 1 | - | - |
| Stop Lamp Relay Ground | - | 1 | - | - |
| 1. Stop Lamps Malfunction 2. Center High Mounted Stop Lamp (CHMSL) Malfunction |
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