AutoCodes – Toyota – P0223 2008 Toyota Prius

P0223 2008 Toyota Prius Code - Throttle/Pedal Position Sensor/Switch 'B' Circuit High Input

Quick Answer

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor (TPS), etc. Common causes include Faulty Throttle position sensor, Throttle position sensor harness 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
P0223 2008 Toyota Prius indicates Throttle/Pedal Position Sensor/Switch 'B' Circuit High Input.
Common causes
Common causes include Faulty Throttle position sensor, Throttle position sensor harness 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,285
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0223 2008 Toyota Prius Description

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor (TPS), etc. The throttle position sensor responds to the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM) In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.
OBDII Code P0223 2008 Toyota Prius - Throttle/Pedal Position Sensor/Switch 'B' Circuit High Input - AutoCodes.com
P0223 2008 Toyota Prius Code - Throttle/Pedal Position Sensor/Switch 'B' Circuit High Input

What are the Possible Causes of the DTC P0223 2008 Toyota Prius?

  • Faulty Throttle position sensor
  • Throttle position sensor harness is open or shorted
  • Throttle position sensor poor electrical connection

How to Fix the DTC P0223 2008 Toyota Prius?

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 P0223 2008 Toyota Prius 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 P0223 2008 Toyota Prius code?

Need more information on how to fix the P0223 2008 Toyota Prius code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0223 2008 Toyota Prius code diagnosed by a professional: Find a repair shop in your area

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 P0223 2008 Toyota Prius Code

1. What are the common symptoms of OBDII code P0223 in a 2008 Toyota Prius?

The common symptoms of code P0223 include issues with acceleration, poor engine performance, and the vehicle going into limp mode.

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

This code indicates that the Engine Control Module (ECM) has detected a higher than normal voltage signal from the throttle/pedal position sensor or switch 'B'.

3. What are the potential causes of the Throttle/Pedal Position Sensor/Switch 'B' Circuit High Input code in a 2008 Toyota Prius?

Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, a malfunctioning ECM, or a mechanical issue in the throttle system.

4. How can I diagnose the OBDII code P0223 in my 2008 Toyota Prius?

Diagnosing this code involves checking the throttle position sensor for proper voltage output, inspecting the sensor's wiring and connectors for damage, and testing the ECM for any faults.

5. Can I continue to drive my 2008 Toyota Prius with the P0223 code present?

It is not recommended to continue driving with the P0223 code active, as it can lead to further damage to the engine and other components. It is best to address the issue as soon as possible.

6. How can I repair the Throttle/Pedal Position Sensor/Switch 'B' Circuit High Input code in my 2008 Toyota Prius?

Repairing this code may involve replacing the throttle position sensor, repairing any damaged wiring or connectors, resetting the ECM, or seeking assistance from a professional mechanic.

7. Will resetting the ECM clear the P0223 code in my 2008 Toyota Prius?

Resetting the ECM may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return. It is essential to diagnose and repair the root cause of the problem.

8. Is it possible to prevent the P0223 code from occurring in my 2008 Toyota Prius?

Regular maintenance, including checking and cleaning the throttle position sensor, inspecting wiring for damage, and addressing any engine performance issues promptly, can help prevent the P0223 code from occurring.

9. How long does it typically take to repair the Throttle/Pedal Position Sensor/Switch 'B' Circuit High Input code in a 2008 Toyota Prius?

The time taken to repair the P0223 code can vary depending on the exact cause of the issue and the extent of the repair needed. It is best to consult with a professional mechanic for an accurate estimate.

10. Can a DIY enthusiast with basic automotive knowledge fix the P0223 code in a 2008 Toyota Prius?

While some aspects of diagnosing and repairing the P0223 code may be within reach for a DIY enthusiast, it is recommended to consult with a professional mechanic for an accurate diagnosis and repair to ensure the issue is fully resolved.

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