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Home >> Jeep >> 2005 >> Wrangler X, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 627 (Powertrain Diagnostic Procedures - DRIVEABILITY - Gas - Symptom & Diagnostic Tests (DTCS P0031 To P1899)) >> DRIVEABILITY - Gas - Diagnostic Tests >> P0135-O2 Sensor 1/1 Heater Failure; P0141-O2 Sensor 1/2 Heater Failure; P0155-O2 Sensor 2/1 Heater Failure; P0161-O2 Sensor 2/2 Heater Failure (Gas - Except NGC) >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2004 Dodge Pickup and 2004 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. O2 SENSOR HEATER OPERATION
  2. O2 HEATER ELEMENT
  3. O2 HEATER SUPPLY CIRCUIT OPEN
  4. HEATER CONTROL CIRCUIT OPEN
  5. HEATER CONTROL CIRCUIT SHORTED TO GROUND
  6. HEATER GROUND CIRCUIT OPEN
  7. PCM
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