Diagnostic Fault Information
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. 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+ Voltage | - | 1 | - | - |
| Left Audio Signal (+) | 2 | 2 | 2 | - |
| Left Audio Signal (-) | 2 | 2 | 2 | - |
| Right Audio Signal (+) | 3 | 3 | 3 | - |
| Right Audio Signal (-) | 3 | 3 | 3 | - |
| Digital Radio Antenna Coax | B1259 02 | B1259 05 | B1259 05 | - |
| Ground | - | 1 | - | - |
| 1. No communication with DRR/XM not available 2. No or distorted audio from left side speakers when listening to digital radio 3. No or distorted audio from right side speakers when listening to digital radio |
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