Rick's Free Auto Repair Advice

Posts Tagged: P0136

P0136

Fix code P0136 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2). This sensor is located on the engine bank that houses #1 cylinder and is located AFTER the catalytic converter When you turn the ignition switch to RUN, power is provided to the heater circuit of the oxygen sensor. The heater gets its ground from the PCM so it can monitor heater operation. If the heater doesn’t return ground to the PCM, it sets trouble code P0136 Most common causes are: Blown fuse, short to ground, dead heater in … Read More


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