OBD Guide
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P1120

Throttle Position Sensor Out Of Range

P1120 is an OBD-II diagnostic trouble code meaning: Throttle Position Sensor Out Of Range. Common causes: throttle position sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Unstable engine idling
  • Dips during acceleration
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Problems with gear shifting (on automatic)

Causes

  • Throttle Position Sensor Malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Mechanical throttle problems
  • Engine control unit malfunction

Error P1120 by Vehicle Brand

BMWBuickCadillacChevroletChryslerFordGMGMCLexusLincolnMazdaMercuryNissanOldsmobileSaturnSubaruToyotaVolkswagen

FAQ

What does the P1120 code mean?

P1120 is an OBD-II diagnostic trouble code that indicates: Throttle Position Sensor Out Of Range

What causes a P1120 error code?

The most common causes of P1120 include: Throttle Position Sensor Malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Mechanical throttle problems.

Is it safe to drive with P1120?

Yes, but get it checked soon

How much does it cost to fix P1120?

The estimated repair cost for P1120 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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