Trouble codes › P0141
P0141 O2 Sensor Heater Circuit (Bank 1 Sensor 2)
Oxygen sensors
P0141 means the heater in bank 1's rear oxygen sensor isn't working, usually burned out or missing power.
The heater in the rear oxygen sensor on bank 1 (after the catalytic converter) has a problem: usually it has burned out or isn't getting power.
Safe to drive. It mainly affects the catalytic converter check and emissions readiness.
Common causes
- A failed heater inside the rear oxygen sensor (most common)
- A blown fuse
- Damaged wiring or a corroded connector under the car
Symptoms
- Check-engine light
- Usually nothing else
Common on: Honda Civic, Honda Accord, Honda CR-V, Honda Pilot
What to check first
- Check the oxygen sensor heater fuse.
- Measure the heater resistance at the sensor.
- Inspect the wiring under the car.
- Replace the sensor if the heater is open.
What does P0141 mean on your vehicle?
The likely cause depends on your engine. iRepair researches your exact year, make, model and engine (service bulletins, recalls and owner reports) and tells you what to check first. Your first 3 questions are free.
Ask iRepair about P0141No scanner? Most auto parts stores read check-engine codes for free.
Related codes
General guidance for P0141 on most vehicles. Some makers use the same code a little differently; confirm in the service information for your vehicle, put safety first, and see a professional when in doubt.