OBD Guide

P0124

Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

P0124 is an OBD-II diagnostic trouble code meaning: Throttle/Pedal Position Sensor/Switch A Circuit Intermittent. Common causes: open or short circuit in the sensor circuit, poor contact in the sensor connector. Estimated repair cost: $22–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–56 (est.)

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

Related codes

Error P0124 by Vehicle Brand

FAQ

What does the P0124 code mean?

P0124 is an OBD-II diagnostic trouble code that indicates: Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What causes a P0124 error code?

The most common causes of P0124 include: Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Throttle Position Sensor Malfunction; Wiring Harness Problems.

How do I fix a P0124 diagnostic trouble code?

To fix P0124: Check the integrity of the sensor circuit. Inspect connectors for corrosion or damage. Test the throttle position sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0124?

Limited driving only, diagnose soon

How much does it cost to fix P0124?

The estimated repair cost for P0124 is $22–56. Actual cost depends on your vehicle, location, and labor rates.

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