P2457 Code: Meaning, Causes, and Symptoms | OBD2 Codes

P2457 – Exhaust Gas Recirculation Cooling System Performance

 

P2457 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P2457 Possible Causes

 

Faulty Exhaust Gas Recirculation (EGR) temperature sensor,Exhaust Gas Recirculation (EGR) temperature sensor harness is open or shorted,Exhaust Gas Recirculation (EGR) temperature sensor circuit poor electrical connection

 

P2457 Description

 

The Powertrain Control Module (PCM) monitors the Exhaust Gas Recirculation (EGR) temperature sensor for variations in temperature. The OBDII code is set when the PCM detects the temperature out of factory specifications.