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Home >> Cadillac >> 2018 >> Escalade ESV Platinum, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting System - DTC B0655 To DTC B3951 >> Diagnostic Information And Procedures >> DTC B3890: Trailer Backup Lamps Circuit >> Conditions for Setting the DTC

Conditions for Setting the DTC

DTC B3890 02 

The trailer lighting control module detects a short to ground in the trailer backup lamps control circuit.

DTC B3890 04 

The trailer lighting control module detects an open/high resistance in the trailer backup lamps control circuit.

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