Diagnostic Fault Information
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. 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 |
|---|---|---|---|---|
| B+ Supply Voltage | B2476 00 | B2476 00 | B2476 00 | - |
| Control Terminal 14 | 1 | 1 | 2 | - |
| Control Terminal 15 | 1 | 1 | 2 | - |
| Signal Terminal 11 | 3 | 3 | - | - |
| Inside Rearview Mirror Ground | - | 1 | - | - |
| 1. OnStar® LED Inoperative 2. LED Illuminated At All Times 3. OnStar® Buttons Inoperative |
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