AutoCodes – Toyota – P0123 2013 Toyota RAV4

P0123 2013 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input

Quick Answer

The throttle position sensor is mounted on the throttle with motor body assembly and detects the opening angle of the throttle valve. Common causes include Faulty Throttle Position Sensor (built into Throttle Body Assembly), Throttle Position Sensor circuit is open or shorted, Throttle Position Sensor poor electrical connection. 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 2013 Toyota RAV4 indicates Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input.
Common causes: Common causes include Faulty Throttle Position Sensor (built into Throttle Body Assembly), Throttle Position Sensor circuit is open or shorted, Throttle Position Sensor poor electrical connection.
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.

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Code Popularity 535

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 23, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0123 2013 Toyota RAV4 Description

The throttle position sensor is mounted on the throttle with motor body assembly and detects the opening angle of the throttle valve. This sensor is a non-contact type sensor. It uses Hall-effect elements in order to yield accurate signals even in extreme driving conditions, such as at high speeds as well as very low speeds.
As the valve closes, the sensor output voltage decreases and as the valve opens, the sensor output voltage increases. The Engine Control Module (ECM) calculates the throttle valve opening angle according to these signals and controls the throttle actuator in response to driver inputs. These signals are also used in calculations such as air-fuel ratio correction, power increase correction, and fuel-cut control.
The ECM uses the throttle position sensor to monitor the throttle valve opening angle. There are several checks that the ECM performs to confirm the proper operation of the throttle position sensor.
This sensor transmits two signals, if the output voltage difference between the two signals deviates from the normal operating range, the ECM interprets this as a malfunction in the throttle position sensor. The ECM illuminates the MIL and stores the Diagnostic Trouble Code (DTC).

OBDII Code P0123 2013 Toyota RAV4 - Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input - AutoCodes.com — P0123 2013 Toyota RAV4 Code - Throttle / Pedal Position Sensor / Switch 'A' Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0123 2013 Toyota RAV4?

Faulty Throttle Position Sensor (built into Throttle Body Assembly)
Throttle Position Sensor circuit is open or shorted
Throttle Position Sensor poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0123 2013 Toyota RAV4?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0123 2013 Toyota RAV4 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 2013 Toyota RAV4 Code

1. What are the common symptoms of OBDII code P0123 in a 2013 Toyota RAV4?

The common symptoms of code P0123 include issues with acceleration, lack of power, poor fuel efficiency, and in some cases, the vehicle may go into "limp mode."

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

This code indicates that the engine control module (ECM) has detected a high voltage input from the throttle or pedal position sensor, suggesting a potential issue with the sensor or its circuit.

3. What are the potential causes of OBDII code P0123 in a 2013 Toyota RAV4?

Common causes of code P0123 include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, a malfunctioning accelerator pedal position sensor, or issues with the ECM itself.

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

Diagnosing code P0123 typically involves scanning the vehicle for codes, visually inspecting the sensor and its wiring for any visible damage, testing the sensor's voltage output, and checking the sensor's resistance.

5. Can I drive my Toyota RAV4 with OBDII code P0123?

It is not recommended to drive your vehicle with code P0123, as it can lead to performance issues and potentially unsafe driving conditions. It's best to address the underlying problem promptly.

6. How can I repair OBDII code P0123 in my 2013 Toyota RAV4?

Repairing code P0123 may involve replacing the throttle position sensor or accelerator pedal position sensor, repairing damaged wiring or connectors, or resetting the ECM after addressing any issues.

7. Is it possible to reset OBDII code P0123 in a Toyota RAV4 without fixing the underlying issue?

Simply clearing the trouble code without addressing the root cause will likely result in the code reappearing once the ECM detects the issue again. It's important to fix the problem to prevent recurrence.

8. How much does it cost to fix OBDII code P0123 in a Toyota RAV4?

The cost of repairing code P0123 can vary depending on the underlying issue, the need for sensor replacement, and labor costs. It's advisable to consult a mechanic for a proper diagnosis and cost estimate.

9. Will OBDII code P0123 cause my Toyota RAV4 to fail an emissions test?

Code P0123 can indicate issues with the throttle or pedal position sensor, affecting the vehicle's emissions control system. It's possible that this code may cause your RAV4 to fail an emissions test.

10. How long does it take to repair OBDII code P0123 in a 2013 Toyota RAV4?

The repair time for code P0123 can vary depending on the specific issue causing the code and the availability of parts. In general, it may take a few hours to a full day to diagnose and repair the problem.