P0122 2006 Toyota Prius Code - Throttle Position Sensor/Switch 'A' Circuit Low Input
Quick Answer
The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle 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
- P0122 2006 Toyota Prius indicates Throttle Position Sensor/Switch 'A' Circuit Low Input.
- Common causes
- Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle 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.
Code P0122 2006 Toyota Prius Description
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
What are the Possible Causes of the DTC P0122 2006 Toyota Prius?
- Faulty throttle position sensor
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
How to Fix the DTC P0122 2006 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0122 2006 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.
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Frequently Asked Questions about P0122 2006 Toyota Prius Code
1. What are the common symptoms of OBDII code P0122 in a 2006 Toyota Prius?
- Common symptoms include issues with acceleration, idle fluctuations, poor fuel economy, and potentially stalling.
2. What does the OBDII code P0122 'Throttle Position Sensor/Switch 'A' Circuit Low Input' mean for a 2006 Toyota Prius?
- This code indicates that there is a low voltage input signal coming from the throttle position sensor or switch in the Prius.
3. What are the possible causes of OBDII code P0122 in a 2006 Toyota Prius?
- The potential causes include a faulty throttle position sensor, damaged wiring or connectors, a corroded sensor, or issues with the throttle body.
4. How can I diagnose the cause of OBDII code P0122 in my 2006 Toyota Prius?
- Diagnosing the issue involves checking the throttle position sensor's voltage output, inspecting wiring and connectors for damage, and testing the throttle body for proper operation.
5. Can I drive my 2006 Toyota Prius with OBDII code P0122?
- It is not recommended to drive the vehicle with this code present, as it can lead to performance issues and potentially unsafe driving conditions.
6. How can I clear the OBDII code P0122 from my 2006 Toyota Prius?
- Clearing the code can be done using an OBDII scanner or by disconnecting the car's battery for a few minutes to reset the system.
7. Is it possible to repair OBDII code P0122 in a 2006 Toyota Prius by myself?
- Depending on your level of automotive knowledge, you may be able to repair this issue yourself by replacing the throttle position sensor or fixing any wiring problems.
8. How much does it typically cost to fix OBDII code P0122 in a 2006 Toyota Prius at a mechanic?
- The cost of repair can vary but generally ranges from $100 to $300, including parts and labor.
9. What are some tips to prevent OBDII code P0122 from appearing in my 2006 Toyota Prius in the future?
- Regularly inspect and maintain the throttle position sensor, wiring, and connectors to ensure they are in good condition and functioning properly.
10. Can OBDII code P0122 in a 2006 Toyota Prius affect the vehicle's overall performance?
- Yes, this code can impact the vehicle's performance by causing issues with acceleration, fuel efficiency, and overall drivability.
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