Engine-CodesToyota – P0120 2017 Toyota RAV4

P0120 2017 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' Circuit Malfunction

Quick Answer

The P0120 code for a 2017 Toyota RAV4 indicates a Throttle/Pedal Position Sensor/Switch 'A' Circuit Malfunction. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor. 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 2017 Toyota RAV4 indicates Throttle / Pedal Position Sensor / Switch 'A' Circuit Malfunction.
Common causes
Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or contamination in the sensor.
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 Sep 11, 2024
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Code P0120 2017 Toyota RAV4 Description

The P0120 code for a 2017 Toyota RAV4 indicates a Throttle/Pedal Position Sensor/Switch 'A' Circuit Malfunction. This means that the Engine Control Module (ECM) has detected a problem with the electrical circuit of the throttle or pedal position sensor or switch. The throttle position sensor (TPS) and pedal position sensor are crucial components that monitor the position of the throttle and accelerator pedal, respectively. They provide the ECM with important data to calculate the correct fuel delivery and ignition timing for optimal engine performance.

OBDII Code P0120 2017 Toyota RAV4 - Throttle / Pedal Position Sensor / Switch 'A' Circuit Malfunction
P0120 2017 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' Circuit Malfunction

Common Causes of P0120 2017 Toyota RAV4

  1. Faulty throttle position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Corrosion or contamination in the sensor
  4. Malfunctioning ECM
  5. Electrical system issues

Symptoms of P0120 2017 Toyota RAV4

  1. Reduced engine power
  2. Unresponsive throttle
  3. Illuminated Check Engine Light
  4. Poor fuel efficiency
  5. Engine stalling or rough idling

How to Fix P0120 2017 Toyota RAV4

  1. Diagnose the code using a diagnostic scanner to pinpoint the exact cause of the malfunction.
  2. Inspect the throttle position sensor and its wiring for any signs of damage or corrosion.
  3. Test the sensor's voltage output and resistance to determine if it is functioning correctly.
  4. Replace the throttle position sensor if it is found to be faulty, ensuring proper installation and calibration.
  5. Clear the code from the ECM's memory and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0120 2017 Toyota RAV4

The cost of repairing a P0120 code on a 2017 Toyota RAV4 can vary depending on the specific cause of the malfunction. On average, the cost of replacing a throttle position sensor can range from $100 to $200, including parts and labor. However, additional costs may be incurred if there are wiring or ECM issues that need to be addressed. It is recommended to consult with a professional mechanic for an accurate estimate based on your vehicle's specific needs. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to research local rates for a more precise cost estimate.

Tech Notes for P0120 2017 Toyota RAV4

Quite a frequent problem with Toyota models. Before replacing any parts, try cleaning the throttle body and resetting the code. If the code comes back, it will be necessary to replace the Throttle Body Assembly.











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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.

Frequently Asked Questions about P0120 2017 Toyota RAV4 Code

What does the OBD-II code P0120 mean on a 2017 Toyota RAV4?

It indicates a malfunction in the "Throttle/Pedal Position Sensor/Switch 'A' Circuit," which monitors the position of the throttle or accelerator pedal.

What are common symptoms of P0120 in a 2017 Toyota RAV4?

Symptoms include reduced engine performance, poor acceleration, delayed throttle response, and the check engine light turning on.

What causes the P0120 code to appear?

Common causes include a faulty throttle position sensor, damaged wiring or connectors, a malfunctioning accelerator pedal position sensor, or issues with the engine control module (ECM).

Can I drive my 2017 Toyota RAV4 with the P0120 code?

Driving with this code is not recommended, as it may lead to poor performance, unsafe driving conditions, or further damage to the vehicle.

How do I diagnose the P0120 code on my 2017 Toyota RAV4?

Use an OBD-II scanner to confirm the code, inspect the throttle position sensor, accelerator pedal position sensor, and wiring for damage or loose connections.

How do I fix the P0120 code on a 2017 Toyota RAV4?

Repairs may include replacing the throttle position sensor, repairing damaged wiring, cleaning connectors, or recalibrating the sensors.

What tools are needed to fix the P0120 code?

Basic tools include an OBD-II scanner, multimeter for testing circuits, and possibly replacement sensors or wiring parts.

How much does it cost to repair the P0120 code on a 2017 Toyota RAV4?

Repair costs vary but can range from $100 to $300, depending on whether parts like sensors need replacement and labor charges.

Can a dirty throttle body cause the P0120 code?

Yes, a dirty throttle body can affect sensor readings and trigger the code. Cleaning the throttle body may help resolve the issue.

Does the P0120 code require sensor recalibration?

In some cases, recalibrating the throttle or pedal position sensors after repair may be necessary to ensure proper function.

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