Circuit/System Description
WARNING: This page is about a different car, the 2008 Pontiac Torrent and 2008 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
The body control module (BCM) applies voltage to the data communication enable circuit when the ignition key is in ACC, ON, or START to enable several modules for bus communication.
Depending on option content, modules that may receive the signal are as follows:
- Transfer case control module (TCCM)
- Electronic brake control module (EBCM)
- Headlamp module