Circuit/System Verification
- Engine running, observe that the AIR Pressure Sensor parameter approximately equals BARO.
- Engine running, enable the AIR solenoid with a scan tool and observe that the AIR Pressure Sensor parameter equals approximately 8-10 kPa above BARO.
- If less than the specified range, verify that the pump is activating. If pump activation is normal, inspect the hoses/pipes between the pump and the solenoid valve for leaks and obstructions.