Engine Light ON (or Service Engine Soon Warning Light),Oil pressure warning light ON
P0523 CADILLAC Possible Causes
Low oil level or motor mechanical fault,Faulty Oil Pressure sensor,Oil Pressure Sensor harness is open or shorted,Oil Pressure Sensor circuit poor electrical connection
P0523 CADILLAC Description
The Powertrain Control Module (PCM) continuously monitors the Engine Oil Pressure (EOP). The EOP sensor measure cahnges in the oil pressure. The EOP sensor changes resistance base on the engine oil pressure.
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