P0124: Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

MediumPowertrainThrottle System

What does P0124 mean?

P0124 is a diagnostic trouble code indicating "Throttle/Pedal Position Sensor/Switch A Circuit Intermittent". A sensor in the throttle system is reporting abnormal data or has lost communication with the ECU. Sensors can fail due to age, contamination, heat exposure, or wiring issues.

Common causes

  • Faulty throttle system component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

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

P0123Throttle/Pedal Position Sensor/Switch A Circuit High Input
P0122Throttle/Pedal Position Sensor/Switch A Circuit Low Input
P0121Throttle/Pedal Position Sensor/Switch A Circuit Range/Performance Problem
P0120Throttle Pedal Position Sensor/Switch A Circuit Malfunction