Diagnostic Fault Information
WARNING: This page is about a different car, the 2018 Buick Envision. 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+ | B124B, 1, 6 | 1, 5 | - | - |
| Auxiliary Audio Common Signal | - | 8 | - | - |
| Auxiliary Detection Signal | 7 | 8 | - | - |
| Left Auxiliary Audio Signal | 2 | 2 | 2, 4 | - |
| Right Auxiliary Audio Signal | 3 | 3 | 3, 4 | - |
| USB Cable | B124B | B124B | B124B | - |
| Ground | - | 1 | - | - |
| 1. SD Card reader and USB port Inoperative 2. No left side audio from device connected to AUX jack 3. No right side audio from device connected to AUX jack 4. Noticeable distortion may be present in affected audio channel 5. Fault may affect one or more components, dependant on fault location 6. Fault affects multiple components, dependant on vehicle equipment 7. Radio does not detect auxiliary device connection, AUX not available as input selection 8. AUX always available as an input selection, with or without auxiliary device connected |
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