Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the heater in one of the oxygen sensors in your car. It's like a tiny heater that helps the sensor work properly, and it's not working right now.
The P0061 code indicates a problem with the heater circuit in the oxygen sensor located in Bank 2, Sensor 3. This sensor helps the car's computer monitor the exhaust gases to ensure the engine is running efficiently.
The Heated Oxygen Sensor (HO2S) has an internal heater to help it reach operating temperature quickly. The P0061 code is triggered when the Engine Control Module (ECM) detects that the resistance in the heater circuit of the oxygen sensor in Bank 2, Sensor 3 is outside the expected range.
• Check Engine Light illuminated
• Poor fuel economy
• Failed emissions test
• Faulty oxygen sensor
• Wiring issues such as open or short circuits
• Blown fuse for the oxygen sensor heater circuit
HO2S: Heated Oxygen Sensor
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the oxygen sensor.
• Test the resistance of the oxygen sensor heater circuit.
• Replace the faulty oxygen sensor.
• Repair or replace damaged wiring or connectors.
• Replace any blown fuses associated with the heater circuit.
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Toyota Camry
• Ford F-150
• Honda Accord
• Regular maintenance checks
• Ensure proper wiring connections
• Replace sensors at recommended intervals
Sensor Issue
• Do not ignore the Check Engine Light.
• Get the vehicle inspected by a professional if unsure.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has been associated with sensor heater failures, often due to age or poor electrical connections.
Moderate – While the vehicle may still run, ignoring it can lead to increased emissions and reduced fuel efficiency.
Driving with a malfunctioning oxygen sensor can lead to increased emissions, which may not comply with local environmental laws.
• Engine at operating temperature
• Use of a multimeter to test sensor resistance
The oxygen sensor is located in the exhaust system, typically after the catalytic converter on Bank 2.
Q: What does Bank 2 mean?
A: Bank 2 refers to the side of the engine that does not contain cylinder 1.
Q: Can I drive with a P0061 code?
A: It's possible to drive, but it's not recommended as it can lead to poor fuel economy and increased emissions.
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Relevant when the code or supporting diagnostics point toward upstream or downstream oxygen-sensor faults.
This code family often involves upstream or downstream oxygen-sensor diagnosis.
Verify exact sensor position and vehicle fitment before buying.
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Fitment Required · Vehicle-fitment part
Relevant when catalyst-efficiency or emissions faults persist after proper diagnosis.
Catalyst-efficiency faults sometimes point toward converter problems after proper testing.
Catalytic converters are highly vehicle-specific and should not be purchased by code alone.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.