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Home >> Cadillac >> 2014 >> SRX Base >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U2105-U2199: Control Module >> Diagnostic Fault Information
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Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U2105-U2199 U2105-U2199 - -
Ignition U2105-U2199, U1814, U2099 U2105-U2199 - -
High Speed GMLAN Serial Data (+) 2 U2105-U2199 2 -
High Speed GMLAN Serial Data (-) 2 U2105-U2199 2 -
Low Speed GMLAN Serial Data 1 U2105-U2199 1 -
Ground - U2105-U2199 - -
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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