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Engine-Codes – Toyota – P0123 2016 Toyota RAV4

P0123 2016 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input

Quick Answer

The P0123 diagnostic trouble code (DTC) on a 2016 Toyota RAV4 indicates an issue with the Throttle/Pedal Position Sensor/Switch 'A' Circuit High Input. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning ECM. 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
P0123 2016 Toyota RAV4 indicates Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input.
Common causes
Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning ECM.
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 P0123 2016 Toyota RAV4 Description

The P0123 diagnostic trouble code (DTC) on a 2016 Toyota RAV4 indicates an issue with the Throttle/Pedal Position Sensor/Switch 'A' Circuit High Input. This code is triggered when the Engine Control Module (ECM) detects that the voltage signal from the throttle position sensor or pedal position sensor is higher than expected. The throttle position sensor (TPS) is responsible for monitoring the position of the throttle valve and sending this information to the ECM, which then adjusts fuel delivery and ignition timing accordingly. A malfunction in this sensor can lead to drivability issues and affect the overall performance of the vehicle.

OBDII Code P0123 2016 Toyota RAV4 - Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input
P0123 2016 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input

Common Causes of P0123 2016 Toyota RAV4

  1. Faulty throttle position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Malfunctioning ECM
  4. Issues with the throttle body
  5. Corrosion or contamination in the sensor connections

Symptoms of P0123 2016 Toyota RAV4

  1. Erratic engine performance
  2. Poor acceleration
  3. Difficulty shifting gears
  4. Limp mode activation
  5. Reduced fuel efficiency

How to Fix P0123 2016 Toyota RAV4

  1. Begin by diagnosing the root cause of the high input signal, which may involve testing the throttle position sensor, checking the wiring and connectors, and inspecting the ECM.
  2. Replace the faulty throttle position sensor if it is determined to be the cause of the issue.
  3. Repair or replace any damaged wiring or connectors in the sensor circuit.
  4. If the ECM is malfunctioning, it may need to be reprogrammed or replaced.
  5. Clean or replace the throttle body if necessary to ensure proper functioning.

Cost to Fix P0123 2016 Toyota RAV4

The typical repair costs for addressing a Throttle/Pedal Position Sensor/Switch 'A' Circuit High Input issue on a 2016 Toyota RAV4 can range from $200 to $500, depending on the specific cause of the problem and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. Rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing. For a precise estimate, it is recommended to inquire locally.

What does this mean?

Tech Notes for P0123 2016 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 P0123 2016 Toyota RAV4 Code

1. What are common symptoms of OBDII code P0123 in a 2016 Toyota RAV4?

- Common symptoms include issues with acceleration, reduced engine power, stalling, and potential problems with the vehicle's overall performance.

2. What does the Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input error code indicate?

- The error code P0123 signifies that the Engine Control Module (ECM) has detected a high voltage input from the throttle or pedal position sensor/switch 'A' circuit.

3. What are the potential causes of the Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input code in a 2016 Toyota RAV4?

- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, a malfunctioning ECM, or issues with the accelerator pedal position sensor.

4. How can I diagnose the Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input issue in my 2016 Toyota RAV4?

- You can diagnose the problem using a diagnostic scan tool to retrieve the trouble code, inspect the wiring and connectors for any damage, and test the throttle position sensor's voltage output.

5. Can I continue driving my 2016 Toyota RAV4 with the P0123 error code?

- It is not recommended to drive the vehicle with the P0123 code as it may lead to further damage and potential safety risks. It is advisable to address the issue promptly.

6. Is it possible to reset the OBDII code P0123 in a 2016 Toyota RAV4?

- While you can clear the error code using a diagnostic scan tool, it is essential to address the underlying issue causing the code to prevent it from reoccurring.

7. How much does it typically cost to repair the Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input problem in a 2016 Toyota RAV4?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve replacing the throttle position sensor, repairing wiring, or addressing other related components. Costs can range from $100 to $300 or more.

8. Can a DIY enthusiast fix the P0123 code in a 2016 Toyota RAV4?

- Depending on the individual's skills and access to tools, it may be possible to address some aspects of the issue, such as checking and cleaning sensor connections. However, more complex repairs may require professional assistance.

9. Are there any preventive maintenance tips to avoid the Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input code in a 2016 Toyota RAV4?

- Regularly inspecting and maintaining the throttle position sensor, keeping wiring connections clean and secure, and promptly addressing any unusual symptoms can help prevent the occurrence of this error code.

10. How long does it take to repair the Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input issue in a 2016 Toyota RAV4?

- The repair time can vary based on the exact cause of the problem and the complexity of the repair. It may take anywhere from 1 to 3 hours for a professional technician to diagnose and fix the issue.

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