Possible causes
– Faulty Pressure Sources Solenoid Valve
– Pressure Sources Solenoid Valve harness is open or shorted
– Pressure Sources Solenoid Valve circuit poor electrical connection
– Pressure Sources Solenoid Valve harness is open or shorted
– Pressure Sources Solenoid Valve circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)