Circuit/System Verification
WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- Verify that DTC P0033, P0034, or P0035 is not set.
- If any of the DTCs are set, refer to DTC P0033-P0035 .
- Use the scan tool output controls to command the Turbocharger Bypass Solenoid ON and OFF. An audible click should be heard and felt.
- If the click is not heard or felt, refer to DTC P0033-P0035 .
- Set up the scan tool for a snapshot of the induction data list. With the emergency brake on, the vehicle transmission in neutral, and the engine idling, perform a wide open throttle and then quickly release the accelerator. Review the Boost Pressure Sensor parameter. There should not be any abnormal pulsations of the parameter.
- With the parking brake ON and the engine idling in neutral, perform an audible test of the valve by depressing the throttle wide open, then quickly releasing it to a closed throttle position. A valve that is stuck shut will generate a rapid pulsating sound. There should not be any unusual noise.
- If there is unusual noise, refer to Turbocharger Cleaning and Inspection .
- 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 from the Freeze Frame/Failure Records data.