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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Controls - Powertrain DTC Charts & Descriptions (Diesel)) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> DTC P2457: Exhaust Gas RECIRCULATION (EGR) Cooler System Performance

DTC P2457: Exhaust Gas RECIRCULATION (EGR) Cooler System Performance

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DTC P2457: EXHAUST GAS RECIRCULATION (EGR) COOLER SYSTEM PERFORMANCE

Description:  This DTC sets when the difference between the expected temperature of the exhaust gas and the actual exhaust gas recirculation temperature (EGRT) sensor value is greater than a calibrated amount.
Possible Causes: 
  • Secondary cooling system restriction
  • Secondary cooling system low coolant level
  • Charge air cooler (CAC) restriction
  • EGR cooler restriction
  • Biased EGRT sensor
Diagnostic Aids:  The presence of this DTC may indicate that the vehicle is operating in derate mode and may experience a loss of power. After repair, the vehicle may still display a system warning message. Drive the vehicle until the system warning message has cleared from the instrument cluster message center.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST AZ .