AutoCodes – Toyota – P2128 2013 Toyota RAV4

P2128 2013 Toyota RAV4 Code - Throttle Pedal Position Sensor/Switch 'E' Circuit Input High

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: P2128 2013 Toyota RAV4 indicates Throttle Pedal Position Sensor/Switch 'E' Circuit Input High.
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 261

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 Sep 17, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2128 2013 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 P2128 2013 Toyota RAV4 - Throttle Pedal Position Sensor/Switch 'E' Circuit Input High - AutoCodes.com — P2128 2013 Toyota RAV4 Code - Throttle Pedal Position Sensor/Switch 'E' Circuit Input High

What does this mean?

What are the Possible Causes of the DTC P2128 2013 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 P2128 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2128 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.

Need more information about the P2128 2013 Toyota RAV4 code?

Need more information on how to fix the P2128 2013 Toyota RAV4 code? Get Access to Factory Service Manuals

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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 P2128 2013 Toyota RAV4 Code

1. What does the OBDII code P2128 on a 2013 Toyota RAV4 indicate?

The code P2128 indicates an issue with the Throttle Pedal Position Sensor/Switch 'E' Circuit Input High.

2. What are the common symptoms of a P2128 code in a Toyota RAV4?

Common symptoms include reduced engine power, acceleration hesitation, and the vehicle going into limp mode.

3. What could cause the Throttle Pedal Position Sensor/Switch 'E' Circuit Input High code on a 2013 Toyota RAV4?

Possible causes include a faulty throttle position sensor, damaged wiring or connectors, or issues with the electronic throttle control system.

4. How serious is the P2128 code in a 2013 Toyota RAV4?

The P2128 code should be addressed promptly to prevent further damage to the engine and ensure safe driving conditions.

5. Can I continue driving my Toyota RAV4 with a P2128 code?

It is not recommended to drive your vehicle with a P2128 code as it can lead to performance issues and potential safety risks.

6. How can I diagnose and repair a P2128 code on my 2013 Toyota RAV4?

Diagnosis typically involves checking the throttle position sensor, wiring, and connectors for any faults. Repair may involve replacing the sensor or repairing the wiring.

7. Is it possible to clear the P2128 code in a Toyota RAV4 without fixing the issue?

Clearing the code without addressing the underlying problem may temporarily remove the warning light, but the issue will likely reoccur.

8. Can a DIY enthusiast fix a P2128 code on a Toyota RAV4?

Depending on your skills and experience, you may be able to diagnose and replace the throttle position sensor yourself. However, electrical issues may require professional assistance.

9. How much does it cost to fix a P2128 code on a 2013 Toyota RAV4?

The cost of fixing a P2128 code can vary depending on the cause of the issue, quality of parts, and labor rates. It's advisable to get estimates from a trusted mechanic.

10. How can I prevent the P2128 code from occurring in my Toyota RAV4?

Regular maintenance, including checking the throttle system components and addressing any issues promptly, can help prevent the P2128 code from occurring.