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Code

P2122

Throttle

Throttle / pedal position sensor D circuit low

The accelerator pedal position sensor D signal is too low.

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Most likely causes

Faulty pedal sensor
Wiring short
Bad connector

Symptoms you may notice

Check engine light
Limp mode
Poor throttle response

Checks to run

Read the pedal sensor live
Test the sensor circuit
Inspect wiring

Tools you may need

OBD-II scanner Multimeter

Always diagnose before replacing. Codes share symptoms; confirm the cause with measurements before buying parts.

Related codes in Throttle

Throttle position sensor / pedal circuit malfunction

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Throttle actuator control range / performance

Throttle actuator control motor circuit range / performance

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