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Home >> Dodge and Ram >> 2023 >> Durango R/T Plus, RWD >> Repair and Diagnosis >> Engine Performance >> System >> 5.7L - DTCS C053D To P0121 >> DTC Troubleshooting >> P0052-O2-Sensor 2/1 Heater Circuit High >> Possible Causes

Possible Causes

Possible Causes
O2 SENSOR 1/2 HEATER CONTROL CIRCUIT SHORTED TO VOLTAGE
O2 SENSOR 1/2 HEATER CONTROL CIRCUIT OPEN/HIGH RESISTANCE
O2 SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE
OXYGEN SENSOR 1/2
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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