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P0120 2000 Toyota Camry Code - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction

Quick Answer

The P0120 code on a 2000 Toyota Camry indicates a Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction. Common causes include Faulty throttle pedal position sensor or switch, Wiring issues or a poor connection in the circuit, Corrosion or damage to the sensor or switch. 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 2000 Toyota Camry indicates Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction.
Common causes
Common causes include Faulty throttle pedal position sensor or switch, Wiring issues or a poor connection in the circuit, Corrosion or damage to the sensor or switch.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P0120 2000 Toyota Camry Description

The P0120 code on a 2000 Toyota Camry indicates a Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction. This means that there is an issue with the sensor or switch that monitors the position of the throttle pedal in the vehicle. The throttle pedal position sensor is a crucial component of the electronic throttle control system, which regulates the amount of air entering the engine. This information is used by the engine control module (ECM) to adjust fuel delivery and ignition timing, ultimately affecting the engine's performance.

OBDII Code P0120 2000 Toyota Camry - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction
P0120 2000 Toyota Camry Code - Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction

Common Causes of P0120 2000 Toyota Camry

  1. Faulty throttle pedal position sensor or switch.
  2. Wiring issues or a poor connection in the circuit.
  3. Corrosion or damage to the sensor or switch.
  4. ECM software or hardware issues.
  5. Environmental factors such as moisture or heat affecting the sensor.

Symptoms of P0120 2000 Toyota Camry

  1. Poor acceleration or lack of response when pressing the gas pedal.
  2. Rough idling or stalling when coming to a stop.
  3. Check Engine Light illuminated on the dashboard.
  4. Reduced fuel efficiency.
  5. Vehicle going into limp mode.

How to Fix P0120 2000 Toyota Camry

  1. Begin by diagnosing the issue using a diagnostic scanner to confirm the P0120 code and pinpoint the exact cause.
  2. Inspect the throttle pedal position sensor and switch for any visible damage or corrosion. Replace if necessary.
  3. Check the wiring and connections in the circuit for any breaks or loose connections. Repair or replace as needed.
  4. Clear the code from the ECM and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be needed to identify any underlying ECM issues.

Cost to Fix P0120 2000 Toyota Camry

The typical repair costs for a Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction can range from $150 to $300, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops often charge less. It's recommended to check local rates for a more accurate estimate.

What does this mean?

Tech Notes for P0120 2000 Toyota Camry

Very common problem with Toyota models. Before replacing any parts, try cleaning the throttle body and reset the light. If the codes come back, then it will necessary to replaced the throttle position sensor (TPS). Most auto parts sell the TPS for around $60.

When is the Code Detected?

Malfunction is detected when an excessively low or high voltage from the sensor is sent to ECM.

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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 2000 Toyota Camry Code

1. What are the common symptoms of OBDII code P0120 on a 2000 Toyota Camry?

- Common symptoms include issues with acceleration, poor throttle response, stalling, and in some cases, the vehicle may go into limp mode.

2. What could cause the Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction in a 2000 Toyota Camry?

- The code P0120 in a 2000 Toyota Camry is often caused by a faulty throttle position sensor, damaged wiring, or a malfunctioning accelerator pedal position sensor.

3. How can I diagnose the Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction on my 2000 Toyota Camry?

- To diagnose this issue, you can use an OBDII scanner to read the code, inspect the throttle position sensor and related wiring for damage, and perform a voltage test on the sensor.

4. Can I still drive my 2000 Toyota Camry with the P0120 code present?

- It is not recommended to drive your Toyota Camry with the P0120 code present as it can lead to poor performance and potentially unsafe driving conditions.

5. How can I repair the Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction on my 2000 Toyota Camry?

- The repair usually involves replacing the faulty throttle position sensor or repairing any damaged wiring. In some cases, resetting the error code may also resolve the issue temporarily.

6. Will disconnecting the battery reset the P0120 code on a 2000 Toyota Camry?

- Disconnecting the battery may temporarily reset the code, but it is recommended to diagnose and repair the underlying issue to prevent the code from reappearing.

7. Are there any DIY tips for fixing the P0120 code on a 2000 Toyota Camry?

- DIY tips include checking the throttle position sensor for proper operation, inspecting the wiring for any visible damage, and ensuring all connections are secure.

8. Can a dirty throttle body cause the P0120 code on a 2000 Toyota Camry?

- While a dirty throttle body can cause performance issues, it is not a common cause of the P0120 code. Focus on inspecting the throttle position sensor and related components for this specific code.

9. How much does it typically cost to repair the Throttle Pedal Position Sensor/Switch 'A' Circuit Malfunction on a 2000 Toyota Camry?

- The cost of repairing the P0120 code can vary depending on the extent of the issue and whether you do the repair yourself or take it to a professional. Expect costs for parts and labor to be a few hundred dollars.

10. Can the P0120 code on a 2000 Toyota Camry be a recurring issue?

- If the underlying cause of the code, such as a faulty sensor or wiring, is not properly addressed, the P0120 code can reoccur. It's essential to diagnose and fix the root problem to prevent future occurrences.

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