Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Powertrain High Speed GMLAN Serial Data (+) | U0074 | U0100-U02FF* | U0074 | - |
| Powertrain High Speed GMLAN Serial Data (-) | U0074 | U0100-U02FF* | U0074 | - |
| * No communications with one or more Powertrain high speed GMLAN control modules. An open in only one Powertrain high speed GMLAN serial data circuit may allow degraded communication between the control modules. | ||||