Throttle/Pedal Position Sensor/Switch E Circuit Low

Where it lives

For P2127, the circuit described runs through the sensor. The description of P2127 reports a fault at the sensor.

Check these first

• A short to ground on the throttle or pedal position sensor E signal wire
• An open in the sensor E reference feed
• Corrosion at the sensor E connector
• A failed throttle or pedal position sensor

What to do next

1. Read throttle or pedal position sensor E on a scan tool
2. Test the sensor E signal wire for a short to ground
3. Check the sensor E reference feed for an open
4. Check the sensor E connector for corrosion
5. Replace the sensor E if the circuit tests good
6. Clear the code and retest

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