Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Mid Speed GMLAN Serial Data (+) | 1 | U0100-U0299* | 1 | - |
| Mid Speed GMLAN Serial Data (-) | 1 | U0100-U0299* | 1 | - |
| Ground (DLC, terminal 5) | - | 1 | - | - |
| * No communications with one or more mid speed GMLAN modules. An open in only one mid speed GMLAN serial data circuit may allow degraded communication between the modules. An open between the data link connector (DLC) and the first splice will only effect the communication with the scan tool. The vehicle modules will still communicate. 1. No communication on any mid speed GMLAN module. |
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