Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ | U18A2 | U18A2 | - | - |
| Ignition | U18A2 | U18A2 | - | - |
| Accessory Wake Up Serial Data (circuit 5985) | U1814* | U18A2 | - | - |
| Powertrain High Speed GMLAN Serial Data (+) (circuit 7493) or High Speed GMLAN Serial Data (+) 3 |
U0074* | U0074* | U0074* | - |
| Powertrain High Speed GMLAN Serial Data (-) (circuit 7494) or High Speed GMLAN Serial Data (-) 3 |
U0074* | U0074* | U0074* | - |
| Ground | - | U18A2 | - | - |
| * Other DTCs may set with this fault. | ||||