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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1416 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P0703 >> Circuit/System Description
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Circuit/System Description

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The body control module (BCM) monitors the stop lamp switch, mounted on the brake pedal. The BCM sends a serial data message to the engine control module (ECM) indicating the status of the stop lamp switch.

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