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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 >> P0136-O2 Sensor 1/2 Heater Circuit Malfunction (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. GOOD TRIP EQUAL TO ZERO
  2. O2 SENSOR HEATER RELAY
  3. (A141) FUSED ASD RELAY OUTPUT CIRCUIT
  4. (K127) O2 HEATER RELAY CONTROL CIRCUIT OPEN
  5. (K127) O2 HEATER RELAY CONTROL CIRCUIT SHORTED TO GROUND
  6. O2 HEATER ELEMENT PCM 11 X
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