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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1085 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2742: Front Fog Lamp Switch Circuit Low >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

The BCM controls the fog lamps by grounding the coil side of the fog lamp relay when the fog lamp switch is pressed momentarily.

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