OBD Guide

P0124

Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

Severity: MEDIUM

Symptoms

  • Unstable engine idling
  • Dips when pressing the gas pedal
  • Check Engine Light Illuminates
  • Floating speed

Causes

  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Throttle Position Sensor Malfunction
  • Wiring Harness Problems

How to Fix

  1. Check the integrity of the sensor circuit
  2. Inspect connectors for corrosion or damage
  3. Test the throttle position sensor
  4. Replace sensor if necessary
  5. Repair breaks or shorts in the wiring harness

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