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Home >> Buick >> 2016 >> Regal GS, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Data Communication System - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC U1886: Battery Energy Control Module Lost Communication with Engine Control Module Malfunction >> Diagnostic Fault Information
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Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
B+ U1886 U1886 - -
Ignition U1814, U1886* U1886 - -
High Speed GMLAN Serial Data (+) U0073* U1886* U0073* -
High Speed GMLAN Serial Data (-) U0073* U1886* U0073* -
Ground - U1886 - -
* Other DTCs may set with this fault.
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