AutoCodes – Toyota – P2126 2017 Toyota RAV4

P2126 2017 Toyota RAV4 Code - Throttle/Pedal Position Sensor/Switch 'E' Circuit Range / Performance

Quick Answer

The Accelerator Pedal Position (APP) sensor is built into the accelerator pedal sensor assembly and has 2 sensor circuits: VPA (main) and VPA2 (sub). Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit 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
P2126 2017 Toyota RAV4 indicates Throttle/Pedal Position Sensor/Switch 'E' Circuit Range / Performance.
Common causes
Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal Position Sensor circuit 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 281
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 17, 2022
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Code P2126 2017 Toyota RAV4 Description

The Accelerator Pedal Position (APP) sensor is built into the accelerator pedal sensor assembly and has 2 sensor circuits: VPA (main) and VPA2 (sub). This sensor is a non-contact type sensor and 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. The voltage, which is applied to terminals VPA and VPA2 of the Engine Control Module (ECM), varies between 0.5 V and 4.75 V in proportion to the operating angle of the accelerator pedal (throttle valve). A signal from VPA indicates the actual accelerator pedal opening angle (throttle valve opening angle) and is used for engine control. A signal from VPA2 conveys the status of the VPA circuit and is used to check the accelerator pedal position sensor itself.
The ECM monitors the actual accelerator pedal opening angle (throttle valve opening angle) through the signals from VPA and VPA2 and controls the throttle actuator according to these signals.
When either the output voltage of VPA or VPA2 deviates from the standard range, or the difference between the output voltages of the 2 sensor circuits is more than the threshold, the ECM determines that there is a malfunction in the accelerator pedal position sensor. The ECM then illuminates the MIL and stores a Diagnostic Trouble Code (DTC).
OBDII Code P2126 2017 Toyota RAV4 - Throttle/Pedal Position Sensor/Switch 'E' Circuit Range / Performance - AutoCodes.com
P2126 2017 Toyota RAV4 Code - Throttle/Pedal Position Sensor/Switch 'E' Circuit Range / Performance

What are the Possible Causes of the DTC P2126 2017 Toyota RAV4?

  • Faulty Accelerator Pedal Position (APP) Sensor
  • Accelerator Pedal Position Sensor harness is open or shorted
  • Accelerator Pedal Position Sensor circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P2126 2017 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2126 2017 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.

Need more information about the P2126 2017 Toyota RAV4 code?

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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 P2126 2017 Toyota RAV4 Code

1. What are the common symptoms of OBDII code P2126 in a 2017 Toyota RAV4?

The common symptoms include reduced engine power, hesitation or stalling when accelerating, and the illumination of the Check Engine Light.

2. What can cause the OBDII code P2126 in a 2017 Toyota RAV4?

The code P2126 is typically triggered by a malfunction in the throttle/pedal position sensor/switch 'E' circuit, which may be due to a faulty sensor, wiring issues, or a problem with the electronic control module.

3. How serious is the OBDII code P2126 in a 2017 Toyota RAV4?

While the vehicle may still be operable with this code, it is important to address it promptly to avoid potential safety risks and further damage to the engine or other components.

4. Can I continue driving my 2017 Toyota RAV4 with the P2126 code?

It is not recommended to drive the vehicle extensively with this code present, as it can lead to poor performance and potential safety hazards. It is advisable to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose the OBDII code P2126 in my 2017 Toyota RAV4?

Diagnosing the P2126 code typically involves using a scan tool to check for the code, inspecting the throttle/pedal position sensor and related wiring, and performing a thorough visual inspection of the components involved.

6. What are some repair tips for fixing the P2126 code in a 2017 Toyota RAV4?

Repair tips include checking and cleaning the throttle body, ensuring proper sensor connections, replacing any damaged wiring, and, if necessary, replacing the throttle/pedal position sensor to resolve the issue.

7. Is it possible to reset the OBDII code P2126 in a 2017 Toyota RAV4?

Resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue causing the P2126 code is not addressed, the code is likely to reappear.

8. How much does it cost to repair the OBDII code P2126 in a 2017 Toyota RAV4?

The cost of repairing the P2126 code can vary depending on the specific cause of the issue, but it may involve expenses for parts and labor, which could range from a few hundred to over a thousand dollars.

9. Can a DIY enthusiast fix the P2126 code in a 2017 Toyota RAV4?

While some aspects of diagnosing and repairing the P2126 code may be within reach of a skilled DIY enthusiast, it is recommended to consult a professional technician for accurate diagnosis and proper repair to ensure the issue is resolved effectively.

10. How long does it take to repair the OBDII code P2126 in a 2017 Toyota RAV4?

The repair time for the P2126 code can vary depending on the extent of the issue and the specific repairs needed. It may take anywhere from a couple of hours to a full day for the repair to be completed by a qualified mechanic.

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