Throttle/Pedal Position Sensor/Switch C Circuit High

Where it lives

For P0228, the circuit described runs through the sensor. The description of P0228 reports a fault at the sensor.

Check these first

• A short to voltage on the sensor C signal wire
• A failed throttle or pedal position sensor C
• Corrosion or water in the sensor C connector
• An incorrect sensor C installation
• A faulty ECM input for sensor C

What to do next

1. Read throttle or pedal position sensor C on a scan tool
2. Test the sensor C signal wire for a short to voltage
3. Inspect the sensor C connector for water intrusion
4. Replace throttle or pedal position sensor C if it reads high
5. Verify the ECM if the reading stays high
6. Clear the code and retest

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