Question 1

What does P2138 mean?

Accepted Answer

P2138 - Throttle/Pedal Position Sensor D/E Voltage Correlation. The accelerator pedal position sensors are not correlating properly.

Question 2

What are the symptoms of P2138?

Accepted Answer

Reduced engine power, Limited acceleration, Check engine light, Vehicle may barely move

Question 3

What causes P2138?

Accepted Answer

Failed accelerator pedal position sensor, Wiring issue to pedal sensor, Corroded connector, Pedal assembly failure

Question 4

How much does it cost to fix P2138?

Accepted Answer

Typical repair cost: $100-$400. If the accelerator pedal position sensors fail, the entire pedal assembly usually needs replacement ($100-300). Do not attempt to repair individual sensors in the pedal.

P2138 — Throttle/Pedal Position Sensor D/E Voltage Correlation

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Common symptoms of P2138

Common causes of P2138

Repair cost & difficulty

Vehicles commonly affected

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