Throttle/Pedal Position Sensor/Switch E Circuit High

What it means

The engine computer has found that the signal from sensor E, usually the second sensor in the accelerator pedal position sensor, is above its normal range. A common cause is an open ground wire or a signal wire shorted to a voltage source, and the engine enters limp mode.

Related codes: P2127P2123P2138P0651P2106

Symptoms4

• Check engine light on, sometimes with the electronic throttle warning light.
• Loss of power and limp mode.
• Abnormal accelerator response.
• Engine held at idle in some cases.

Possible causes5

• Open in the sensor E ground wire.
• Signal wire shorted to a power wire or voltage source.
• Moisture or corrosion in the sensor connector.
• Failed sensor E inside the pedal sensor assembly.
• Engine computer (ECU) fault, which is rare.

How to diagnose5

1. Watch the sensor E voltage on a scan tool with the pedal released and while pressing slowly.
2. Compare sensor E with sensor D to see whether only one sensor is affected.
3. Inspect the connector for moisture or corrosion.
4. Check ground wire continuity between the sensor and the computer.
5. Unplug the sensor and confirm the signal wire is not carrying voltage from another source.

How to fix5

1. Dry and clean the connector, or replace it.
2. Repair the open ground wire.
3. Repair the shorted wire and separate it from the voltage source.
4. Replace the pedal sensor or the complete pedal assembly if it is proven faulty.
5. Clear the codes and confirm the code does not return.

The cost is low for a connector or wiring repair, and rises when the pedal assembly with its sensor is replaced.

Prices are rough estimates for common cars at independent workshops and vary with the car and the source of the part.
Prices last updated: September 2026

Frequently asked questions