P0061: O2 Sensor Heater Resistance — Bank 2 Sensor 3
What to do
No driveability impact. Clean and test the connector before replacing the sensor.
What this code means
Heater resistance out of specification on the third sensor in the bank 2 exhaust stream, completing the twelve heater-resistance and heater-circuit codes that span P0030 to P0064. Read as a set, the pattern of which sensors report tells you whether you are chasing one aged sensor or a supply problem they share.
Likely causes
Start here
Less common
- Road damage to underfloor wiring · moderate
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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What makes one worth reading:
- The car — make, model, year and engine. The same fault behaves differently on each.
- What you measured, not only what you replaced.
- What actually fixed it — or that nothing did, which is worth knowing too.
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