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Home >> Chevrolet >> 2012 >> Cruze LS, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 240 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC B3794: Cruise Control Function Request Circuit >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2011 Chevrolet Cruze. However, it is still accessible from the selected car via links, so may be relevant.

The cruise control switch is an input to the body control module (BCM). The BCM monitors the cruise control on/off, set/coast, resume/accelerate and cancel switches via the cruise control switch signal circuit in order to detect when the driver has requested to perform a cruise control function. The BCM detects a specific voltage signal on the cruise control switch signal circuit when a switch is applied. The engine control module (ECM) receives the requested cruise control switch function from the BCM via a serial data message.

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