Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ | U1876* | U1876 | - | - |
| Ignition | U1876* | U1876* | - | - |
| Wake-Up Signal | P06E4* | U1876* | - | - |
| High Speed GMLAN Serial Data (+) | U0073* | U1876* | U0073* | - |
| High Speed GMLAN Serial Data (-) | U0073* | U1876* | U0073* | - |
| Powertrain High Speed GMLAN Serial Data (+) | U0074* | U1876* | U0074* | - |
| Powertrain High Speed GMLAN Serial Data (-) | U0074* | U1876* | U0074* | - |
| Ground | - | U1876* | - | - |
| * Other modules/DTCs may set with this fault and multiple symptoms including a no start condition may occur. | ||||