The P0061 trouble code is linked to the HO2S (Heated Oxygen Sensor) Heater Resistance in Bank 2, Sensor 3. This code indicates a potential issue with the heater circuit’s resistance in the third oxygen sensor of Bank 2. It’s commonly found in vehicles equipped with oxygen sensors to monitor the air-fuel mixture.
P0061 HO2S Heater Resistance (Bank 2, Sensor 3)
Code symptoms P0061.
1. Illuminated “Check Engine” or “Service Engine Soon” light on the dashboard.
2. Decreased fuel efficiency.
3. Engine performance issues.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0061.
1. Faulty heater circuit in the third oxygen sensor of Bank 2.
2. Wiring issues in the oxygen sensor circuit.
3. Faulty Powertrain Control Module (PCM).
Code Solutions P0061.
1. Inspect and replace the third oxygen sensor in Bank 2 if the heater circuit is faulty.
2. Inspect wiring in the oxygen sensor circuit and repair or replace damaged sections.
3. If other causes are ruled out, diagnose and replace the Powertrain Control Module.