Code result

P2120

Throttle/Pedal Position Sensor "C" Circuit

Moderate severity

What it means

A general electrical fault on the "C" channel of the throttle or pedal position sensor. Drive-by-wire pedals carry two or three redundant tracks; "C" is the third channel.

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

  • Pedal sensor track C failed

    high

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

  • Signal wire open

    medium

    A plausible cause — test and verify before replacing parts.

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