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Home >> Dodge and Ram >> 2022 >> ProMaster 3500 Van Cargo Extended >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0118 To P0151 >> Diagnosis And Testing >> P0135-O2 Sensor 1/1 Heater Performance >> Possible Causes
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Possible Causes

Possible Causes
HIGH RESISTANCE IN THE O2 SENSOR 1/1 HEATER CONTROL CIRCUIT
HIGH RESISTANCE IN THE O2 SENSOR 1/1 HEATER GROUND CIRCUIT
O2 SENSOR 1/1
POWERTRAIN CONTROL MODULE (PCM)

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

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