Code result

P2AEA

Intake Air O2 Sensor Pumping Current Trim Circuit Low Bank 2

Moderate severity

What it means

The trim adjustment for the pumping current of the intake air oxygen sensor on bank 2 reports a circuit low condition. Wide-band lambda regulation on the intake side is impaired.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Pump current wire shorted to ground

    high

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

  • Internal short in pump cell

    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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