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