Code result

P2129

Throttle/Pedal Position Sensor "D" Circuit Intermittent

Moderate severity

What it means

The "D" channel of the throttle or pedal sensor produces an intermittent signal — typically marginal connector contacts.

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

  • Connector intermittent

    high

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

  • Track D worn

    medium

    A plausible cause — test and verify before replacing parts.

  • Harness routed against vibrating component

    low

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

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