Engine-CodesChrysler – P0120 Chrysler

P0120 Chrysler Code - Electronic Throttle Control Motor Performance

Quick Answer

The P0120 code for Chrysler vehicles indicates a problem with the electronic throttle control (ETC) motor performance. Common causes include Faulty electronic throttle control motor, Wiring or connector issues in the ETC circuit, Dirty throttle body. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0120 Chrysler indicates Electronic Throttle Control Motor Performance.
Common causes
Common causes include Faulty electronic throttle control motor, Wiring or connector issues in the ETC circuit, Dirty throttle body.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0120 Chrysler Description

The P0120 code for Chrysler vehicles indicates a problem with the electronic throttle control (ETC) motor performance. The electronic throttle control system is responsible for regulating the engine's air intake by controlling the throttle valve. When this code is triggered, it means that the Engine Control Module (ECM) has detected a malfunction in the ETC motor's performance. This can lead to issues with the vehicle's acceleration, fuel efficiency, and overall drivability.

OBDII Code P0120 Chrysler - Electronic Throttle Control Motor Performance
P0120 Chrysler Code - Electronic Throttle Control Motor Performance

Common Causes of P0120 Chrysler

  1. Faulty electronic throttle control motor
  2. Wiring or connector issues in the ETC circuit
  3. Dirty throttle body
  4. Electronic throttle control system calibration error
  5. ECM software malfunction

Symptoms of P0120 Chrysler

  1. Reduced engine power
  2. Rough idling or stalling
  3. Acceleration hesitation
  4. Poor fuel economy
  5. Illumination of the Check Engine Light

How to Fix P0120 Chrysler

  1. Diagnose the specific cause of the issue using a scan tool to read the trouble codes.
  2. Inspect the wiring and connectors in the ETC circuit for any damage or corrosion.
  3. Clean the throttle body to remove any carbon buildup that may be affecting the ETC motor's performance.
  4. Perform an electronic throttle control system relearn procedure to recalibrate the system.
  5. If necessary, replace the electronic throttle control motor with a new unit.

Cost to Fix P0120 Chrysler

The cost of repairing a P0120 code on a Chrysler vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates can impact the final cost, so it's best to get a detailed estimate from a qualified mechanic. Labor rates typically range from $80 to $150 per hour, but this can differ based on location and the repair shop.

When is the Code Detected?

The throttle position sensor signals in throttle body do not correlate to the map sensor signal.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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