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Home >> Chrysler >> 2011 >> 300 Base, Gas >> Repair and Diagnosis >> External Pages >> Different car >> Section 100 (6.7L Diesel - DTCS - P21C4 To U1601 - 3500 Cab & Chassis) >> Diagnosis and Testing >> P2457-Exhaust Gas RECIRCULATION Cooling System Performance >> Code Description >> Theory of Operation

Theory of Operation

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This test will fail if the EGR Temperature is greater than a calibrated threshold for a calibrated period of time. This monitor protects the system from a failed EGR Cooler.

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