LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 271 (Lighting System - DTC B0655 To DTC B3890) >> Diagnostic Information and Procedures >> DTC B3889: Trailer Brake Lamps >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

DTC B3889 02 

The trailer lighting control module detects a short to ground in the trailer stop lamp control circuit.

DTC B3889 04 

The trailer lighting control module detects an open/high resistance in the trailer stop lamp control circuit.

scientia non olet · About LEMON Manuals