P0141
O2 Sensor Heater Circuit Bank 1 Sensor 2
Powertrain · Generic (all makes)System: Electrical/Circuits + Emissions
Safe to drive short term. Book a repair.
Likely causes
- Failed heater inside the rear oxygen sensor
- Damaged wiring near the exhaust
What to check first
Replace the bank 1 sensor 2 (downstream) oxygen sensor after checking its wiring.
Typical repair cost
$100 – $350
Independent-shop parts and labor for the usual fix. Your price depends on the actual cause and the vehicle.
Next step
General information, not a diagnosis of your vehicle. Repair costs are typical shop ranges, not quotes.