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Home >> Chevrolet >> 2006 >> TrailBlazer 6.0 H, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Lighting Systems) >> Diagnostic Information and Procedures >> DTC B2575 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2007 Pontiac Torrent and 2007 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

The body control module (BCM) grounds the headlamp relay control circuit when the ambient light sensor senses a dark condition. Voltage is supplied to the headlamp relay when the ignition is on the RUN position.

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