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.
- Review the Failure Records when the DTC set.
- If the engine coolant temperature (ECT) was above 125°C (257°F) when the DTC set, refer to Engine Overheating and correct that concern first.
- Perform the Transmission Fluid Check to verify correct fluid level and condition.