P0228: Throttle/Pedal Position Sensor/Switch C Circuit High Input

MediumPowertrainThrottle System

What does P0228 mean?

P0228 is a diagnostic trouble code indicating "Throttle/Pedal Position Sensor/Switch C Circuit High Input". The ECU is reading a voltage that is above the expected range. This can be caused by a short to power in the wiring, a failed sensor, or a connector issue in the throttle system.

Common causes

  • Damaged or corroded wiring harness
  • Loose or disconnected electrical connector
  • Failed throttle system sensor or actuator
  • Blown fuse in the related circuit
  • Poor ground connection

What should you do?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.

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Related codes

P0227Throttle/Pedal Position Sensor/Switch C Circuit Low Input
P0229Throttle/Pedal Position Sensor/Switch C Circuit Intermittent
P0226Throttle/Pedal Position Sensor/Switch C Circuit Range/Performance Problem
P0225Throttle/Pedal Position Sensor/Switch C Circuit Malfunction