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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 22 (Lighting System) >> Diagnostic Information and Procedures >> DTC B2540: Rear Fog Lamps Control >> Conditions for Setting the DTC

Conditions for Setting the DTC

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

DTC B2540 02 

The BCM detects a short to ground in the rear fog lamp control circuit.

DTC B2540 04 

The BCM detects an open in the rear fog lamp control circuit.

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