P0141

Low urgency

O2 Sensor Heater Circuit (Bank 1 Sensor 2)

What this code means

The heater element of the downstream oxygen sensor is not working, so the sensor warms up too slowly.

Common symptoms

Check engine light
No drivability change
Slightly worse cold-start emissions

Most common causes

Failed sensor heater element
Blown fuse
Wiring damage

Can you keep driving?

Safe to drive - fix it to pass emissions inspections and keep fuel trim accurate.

Do not guess in the dark

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Descriptions are for guidance only. Accurate diagnosis requires a workshop inspection.