Circuit/System Verification

WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Verify that DTC B1004 is not set.

If the DTC is set, perform the setup procedure on the applicable control module, if the DTC resets replace the module.