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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> Body & Frame >> Towing Systems >> Trailer Brake Control System >> Diagnostic Information and Procedures >> DTC B3894 >> Circuit/System Verification

Circuit/System Verification

Ignition ON, press the brake pedal. The brake lights should illuminate and the TBCM Brake Switch Status parameter should indicate ON.

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