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Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U1850* U1850* - -
Ignition U1850* U1850* - -
Wake-Up Signal P06E4* U1850* - -
High Speed GMLAN Serial Data (+) U0073, 1 U1850* U0073, 1 -
High Speed GMLAN Serial Data (-) U0073, 1 U1850* U0073, 1 -
Ground - U1850* - -
* Other modules/DTCs may set with this fault.
1. Scan Tool Does Not Communicate With High Speed GMLAN Device.
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