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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 >> P249C-Excessive Time To Enter Closed Loop SCR REDUCTANT Injection Control >> Code Description >> When Monitored:

When Monitored:

WARNING: This page is about a different car, the 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

The diagnostic runs when an active soot regeneration is requested, ambient air temperature is above a calibrated threshold, and engine speed and fueling are in the operating window where soot regeneration is allowed.

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