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 |
|---|---|---|---|---|
| Ignition | 1 | 1 | - | - |
| Automatic Day/Night Mirror Signal | 2 | 2 | 2 | - |
| Backup Lamp Control | 1 | 1 | 1 | - |
| Automatic Day/Night Mirror Low Reference | - | 2 | 2 | - |
| Ground | - | 1 | - | - |
| 1. Rearview mirror automatic dimming malfunction 2. Outside rearview mirror automatic dimming malfunction |
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