Circuit/System Testing
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.
- Disconnect the CHMSL and test for internal shorts between all terminals of the CHMSL assembly.
- If a short between terminals is found, replace the CHMSL.
- Test the CHMSL supply voltage circuit for a short to ground.
- If all circuits/connections test normal, replace the BCM.