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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 834 (3.0L Diesel - DTCS P20BF-00 To P24AF-00 - 1500) >> Diagnosis And Testing >> P2202-00-NOX Sensor 1 Circuit Low >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN/HIGH RESISTANCE
FUSED IGNITION SWITCH OUTPUT CIRCUIT SHORTED TO GROUND
GROUND CIRCUIT OPEN/HIGH RESISTANCE
NOX SENSOR 1/1

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .