Circuit/System Description

WARNING: This page is about a different car, the 2015 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

Cruise Control Switch Primary Circuit 1

The cruise control switch 1 signal is an input to the body control module (BCM). The BCM monitors the cruise control on/off, speed limiter 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.

Cruise Control Switch Secondary Circuit 2

The cruise control secondary switch 2 signal is an input to the body control module (BCM). The BCM monitors the speed increase high and speed decrease high switches via the cruise control secondary 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 secondary switch signal circuit when a switch is applied. The engine control module (ECM) receives the requested cruise control secondary switch function from the BCM via a serial data message.