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
– Faulty Oil Pressure sensor
– Oil Pressure Sensor harness is open or shorted
– Oil Pressure Sensor circuit poor electrical connection
When is the code detected?
The P0522 is set when the Powertrain Control Module (PCM) senses a signal voltage higher than the normal operating range of the Engine Oil Pressure (EOP) sensor
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Oil pressure warning light ON
– Oil pressure warning light ON
P0523 GMC 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.
GMC Technical Service Bulletins for P0523 code
2004 GMC SAVANA FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
2004 GMC SIERRA FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
2004 GMC YUKON FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
2004 GMC YUKON XL FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM
2004 GMC SAVANA ENGINE AND ENGINE COOLING:ENGINE
2004 GMC SAVANA FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES
2004 GMC SIERRA ENGINE AND ENGINE COOLING:ENGINE
2004 GMC SIERRA FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES
2004 GMC YUKON ENGINE AND ENGINE COOLING:ENGINE
2004 GMC YUKON FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES