Conditions for Running the DTC: P0975-P0977
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.
- Ignition is ON.
- Ignition voltage is greater than 9.0 V and less than 18 V.
- Engine running for greater than 5 seconds.