Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ | U182E | U182E | - | - |
| Ignition | U182E | U182E | - | - |
| Accessory Wake Up Serial Data | U1814, U2099 | U182E | - | - |
| Powertrain High Speed GMLAN Serial Data (+) | U0074* | U182E, U0074 | U0074* | - |
| Powertrain High Speed GMLAN Serial Data (-) | U0074* | U182E, U0074 | U0074* | - |
| Ground | - | U182E | - | - |
| * Other DTCs may set with this fault. | ||||