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Home >> Buick >> 2013 >> Regal GS, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System >> Diagnostic Information and Procedures >> DTC U1876 >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U1876 U1876 - -
Ignition U1814, U1876* U1876 - -
High Speed GMLAN Serial Data (+) U0073* U0073, U1876* U0073* -
High Speed GMLAN Serial Data (-) U0073* U0073, U1876* U0073* -
Ground - U1876 - -
* Other DTCs may set with this fault.