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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 603 (3.0L Diesel - DTCS P2455-00 To U1489-00 - 1500) >> Diagnosis And Testing >> P2BA9-00-NOX EXCEEDENCE - Insufficient REDUCTANT Quality >> Set Condition

Set Condition

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

The PCM uses the (upstream) NOx Sensor 1/1 and the (downstream) NOx Sensor 1/2 feedback to calculate the NOx efficiency. The PCM also factors in engine operating and environmental conditions to calculate the DEF dosing rate. The PCM sets this DTC if the NOx Conversion Efficiency is below a calculated threshold target. The PCM will turn on the Malfunction Indicator Lamp (MIL) immediately after the monitor runs and fails.

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