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 assembly. Clear the DTC. Using a test lamp connected to the positive battery terminal, probe the CHMSL voltage supply circuit.
- If the test lamp illuminates, test for a short to ground in the CHMSL voltage supply circuit. If all circuits/connections test normal, replace the BCM.
- Replace the CHMSL assembly.