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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 B263A: Exterior Illumination Lamp >> 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 B263A 02 

The BCM detects a short to ground in the exterior courtesy lamps control circuit terminal 8 X7 (Sedan) or terminal 10 X4 (Coupe).

DTC B263A 04 

The BCM detects an open/high resistance in the exterior courtesy lamps control circuit terminal 8 X7 (Sedan) or terminal 10 X4 (Coupe).

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