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 the following DTCs are not set: P0641 or P0651.
- If any of the DTCs are set, refer to DTC P0641 or P0651 .
- Ignition ON, observe the MAP Sensor parameter. The reading should be between 0.05-4.9 volts.
- Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.