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Home >> Chevrolet >> 2006 >> HHR LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Cruise Control System) >> Diagnostic Information and Procedures >> Cruise Control Inoperative/Malfunctioning >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2007 Chevrolet HHR. 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 and resume/accelerate switch signal circuit in order to detect when a cruise control function switch has been activated. The BCM detects a predetermined voltage signal when a cruise control function switch is applied, with each switch having a different voltage value. The BCM sends a GMLAN serial data message to the engine control module (ECM) indicating the status of the cruise control switches.

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