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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1169 (3.0L Diesel - DTCS P20C2-00 To P24B6-00 - 1500) >> DTC Troubleshooting >> P2237-00-O2 Sensor 1/1 Pump Cell Current Circuit Open >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2016 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
(K89) O2 SENSOR 1/1 NEGATIVE CURRENT CONTROL CIRCUIT OPEN/HIGH RESISTANCE
OXYGEN SENSOR
POWERTRAIN CONTROL MODULE (PCM)

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

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