Diagnostic Fault Information
WARNING: This page is about a different car, the 2012 Buick Verano. 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 |
|---|---|---|---|---|
| Radio Controls B+ | U0257, 1, 2, 3 | 2, 4 | - | - |
| Radio Display B+ | U0257, 1, 2, 3 | U0257, 1, 3, 4 | - | - |
| Radio Display Reset | U0257, 1, 2 | - | - | - |
| Radio Display Wakeup | - | U0257, 1, 2 | U0257, 1, 2 | - |
| CGI Serial Data + | U0257, 1, 2 | U0257, 1, 2 | U0257, 1, 2 | - |
| CGI Serial Data - | U0257, 1, 2 | U0257, 1, 2 | U0257, 1, 2 | - |
| LIN Serial Data | 2 | 2 | 2 | - |
| Radio Controls ground | - | 2 | - | - |
| Radio Display Ground | - | - | - | - |
| 1. Display Inoperative 2. Controls inoperative 3. Fault affects multiple components, dependent on vehicle equipment additional communication DTCs may be set 4. Fault may affect one or more components, dependent on fault location |
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