Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Prior to cold start, Ignition ON, observe the TCM Temperature parameter with a scan tool. The TCM Temperature parameter should be approximately the same as the ambient temperature.
- Perform a road test while observing the TCM Temperature parameter with a scan tool. The TCM Temperature parameter should rise and then stabilize.
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed on the Freeze Frame/Failure Records data.