Diagnostic Aids
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- When attempting to set transmission performance DTCs, observe the Freeze Frame and Failure Records to assist in duplicating the failure conditions.
- If diagnosing a P0776 DTC and you know the 3-5-R Clutch is not stuck ON, inspect for a sticking clutch select valve 2.