Code result

P2241

O2 Sensor Pumping Current Circuit Low

High severity

What it means

The pumping-current line of the wide-band oxygen sensor on bank 2, sensor 1 is below the lower threshold. Wide-band sensors use a small pumping current to keep their measuring cell at lambda 1; a low value usually means an open or shorted pump cell.

Is it safe to drive?

No — stop driving

This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.

Most likely causes

  • Pump cell open or sensor failed

    high

    One of the most commonly reported causes for this code — check this first.

  • Pumping current line shorted to ground

    medium

    A plausible cause — test and verify before replacing parts.

  • Connector pins corroded - high contact resistance

    low

    Less common, but worth ruling out after the more likely causes.

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