P15E9 Code: Meaning, Causes, and Symptoms | OBD2 Codes

P15E9 – External Engine Off Timer Engine Off Time Too Long in Correlation to Cooling-Down Of Engine Coolant

 

P15E9 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P15E9 Possible Causes

 

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

 

P15E9 Description

 

The Engine Control Module (ECM) monitors the Engine Temperature Sensor. The ECM sets the OBDII code when the Engine Temperature Sensor is not to factory specifications.