OBD Guide

P1125

Throttle Position Sensor Intermittent

P1125 is an OBD-II diagnostic trouble code meaning: Throttle Position Sensor Intermittent. Common causes: faulty throttle position sensor, oxidized or damaged contacts in the sensor connector. Estimated repair cost: $17–67.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Unstable engine idling
  • Dips or jerks when pressing the gas pedal
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Problems with gear shifting (on automatic)

Causes

  • Faulty throttle position sensor
  • Oxidized or damaged contacts in the sensor connector
  • Open or short circuit in the sensor circuit
  • Mechanical damage to the throttle assembly
  • Sensor power problems

How to Fix

  1. Check the condition of the sensor electrical connections
  2. Test the throttle position sensor with a multimeter
  3. Inspect the wiring harness for damage
  4. Clean the throttle assembly from dirt
  5. If necessary, replace the throttle position sensor

Related codes

Error P1125 by Vehicle Brand

FAQ

What does the P1125 code mean?

P1125 is an OBD-II diagnostic trouble code that indicates: Throttle Position Sensor Intermittent

What causes a P1125 error code?

The most common causes of P1125 include: Faulty throttle position sensor; Oxidized or damaged contacts in the sensor connector; Open or short circuit in the sensor circuit; Mechanical damage to the throttle assembly.

How do I fix a P1125 diagnostic trouble code?

To fix P1125: Check the condition of the sensor electrical connections. Test the throttle position sensor with a multimeter. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1125?

Yes, but get it checked soon

How much does it cost to fix P1125?

The estimated repair cost for P1125 is $17–67. Actual cost depends on your vehicle, location, and labor rates.

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