Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Verify that DTC P0602 is not set.
- If DTC P0602 is set, program the TCM.
- If DTC P0602 is not set, replace the TCM