Circuit/System Testing
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the inside rearview mirror harness connector.
- Test for infinite resistance between terminal 12 and 11.
- If resistance less than the specified value, replace the rearview mirror.
- If all circuits test normal, replace the VCIM