Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ | U0100-U02FF | U0100-U02FF | - | - |
| Ignition | - | U0100-U02FF | - | - |
| Ground | U0100-U02FF | U0100-U02FF | - | - |
| Accessory Wakeup Serial Data | U1814 | U0100-U02FF | - | - |
| Serial Data Communication Enable | U2099 | U0100-U02FF | - | - |
| Powertrain High Speed GMLAN Serial Data (+) | 3 | U0100-U02FF | 3 | - |
| Powertrain High Speed GMLAN Serial Data (-) | 3 | U0100-U02FF | 3 | - |
| High Speed GMLAN Serial Data (+) | 2 | U0100-U02FF | 2 | - |
| High Speed GMLAN Serial Data (-) | 2 | U0100-U02FF | 2 | - |
| Low Speed GMLAN Serial Data | 1 | U0100-U02FF | 1 | - |
| 1. Scan tool does not communicate with low speed GMLAN device 2. Scan tool does not communicate with high speed GMLAN device 3. Scan tool does not communicate with powertrain high speed GMLAN device |
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