Severity: Low
Safe to drive. Schedule a diagnosis soon.
What P0141 means
Heater circuit fault on the downstream bank 1 O2 sensor.
Symptoms
- None
Common causes
Most likely first
- 1Failed sensor heater
- 2Fuse or wiring
How we diagnose it
- Check fuse, resistance and supply
Every vehicle sets codes under its own conditions. We check the factory diagnostic steps and service bulletins for your VIN, so the repair targets the actual cause.