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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communication System - DTC U182D To U3012 And Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC U1885: Battery Energy Control Module Lost Communication with Hybrid/EV Powertrain 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+ U1885* U1885 - -
Ignition U1885* U1885* - -
Accessory Wake Up Serial Data 2 P06E4, U1885* U1885* - -
High Speed GMLAN Serial Data (+) U0073* U0073, U1885* U0073* -
High Speed GMLAN Serial Data (-) U0073* U0073, U1885* U0073* -
Ground - U1885* - -
* Other DTCs may set with this fault and multiple symptoms including a no start condition may occur.
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