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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 >> P2609-Intake Air Heater System Performance >> Code Description >> When Monitored:

When Monitored:

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During the preheat cycle, while the wait to start lamp is illuminated.

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