P252D Code: Meaning, Causes, and Symptoms | OBD2 Codes

P252D – Engine Oil Quality Sensor Circuit High

 

P252D Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P252D Possible Causes

 

Faulty Engine Oil Quality Sensor,Engine Oil Quality Sensor harness is open or shorted,Engine Oil Quality Sensor circuit poor electrical connection

 

P252D Description

 

The Powertrain Control Module (PCM) monitors the Engine Oil Quality Sensor Circuit. The PCM sets the OBDII code when the Engine Oil Quality Sensor signal is out of factory specifications.