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Home >> Jeep >> 2024 >> Wagoneer Carbide, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (3.0L - DTCS P0128-00 To P013B-00) >> DTC Troubleshooting >> P0135-00-O2 Sensor 1/1 Heater Performance >> Possible Causes

Possible Causes

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Possible Causes
ASD RELAY OUTPUT CIRCUIT OPEN/HIGH RESISTANCE
HIGH RESISTANCE IN THE O2 SENSOR 1/1 HEATER CONTROL CIRCUIT
O2 SENSOR 1/1
POWERTRAIN CONTROL MODULE (PCM)

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