Diagnostic Fault Information
WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ | U0100-U02FF | U0100-U02FF | - | - |
| Ignition | U0100-U02FF | U0100-U02FF | - | - |
| Accessory Wakeup Serial Data | U1814 | U0100-U02FF | - | - |
| Serial Data Communication Enable | U2099 | U0100-U02FF | - | - |
| Chassis High Speed GMLAN Serial Data (+) | U0074 | U0074, U0100-U02FF | U0074 | - |
| Chassis High Speed GMLAN Serial Data (-) | U0074 | U0074, U0100-U02FF | U0074 | - |
| Mid Speed GMLAN Serial Data (+) | U0074 | U0074, U0100-U02FF | U0074 | - |
| Mid Speed GMLAN Serial Data (-) | U0074 | U0074, U0100-U02FF | U0074 | - |
| High Speed GMLAN Serial Data (+) | 2 | U0073, U0100-U02FF | 2 | - |
| High Speed GMLAN Serial Data (-) | 2 | U0073, U0100-U02FF | 2 | - |
| Low Speed GMLAN Serial Data | 1 | U0100-U02FF | 1 | - |
| Ground | - | U0100-U02FF | - | - |
| 1. Scan tool does not communicate with low speed GMLAN device 2. Scan tool does not communicate with high speed GMLAN device |
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