P0122 2007 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 2007 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 2007 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 2007 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 2007 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 2007 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 2007 Toyota Prius Code
1. What are the common symptoms of OBDII code P0122 in a 2007 Toyota Prius?
- Common symptoms include poor acceleration, stalling, rough idling, and a decrease in fuel efficiency.
2. What does the OBDII code P0122 indicate in a 2007 Toyota Prius?
- The code P0122 indicates a low input signal from the throttle position sensor/switch 'A' circuit.
3. What are the possible causes of the Throttle Position Sensor/Switch 'A' Circuit Low Input code in a 2007 Toyota Prius?
- Possible causes include a faulty throttle position sensor, damaged wiring or connectors, a malfunctioning throttle body, or a problem with the engine control module.
4. How can I diagnose the Throttle Position Sensor/Switch 'A' Circuit Low Input code in my 2007 Toyota Prius?
- Diagnose the code by checking the throttle position sensor's wiring and connectors for damage, testing the sensor's voltage output, and inspecting the throttle body for any issues.
5. Can I drive my 2007 Toyota Prius with the P0122 code?
- It is not recommended to drive your vehicle with the P0122 code as it can result in poor performance and potentially lead to more serious issues.
6. How can I repair the Throttle Position Sensor/Switch 'A' Circuit Low Input code in my 2007 Toyota Prius?
- Repair options include replacing the throttle position sensor, repairing damaged wiring or connectors, cleaning or replacing the throttle body, or reprogramming the engine control module.
7. Will resetting the OBDII code P0122 in my 2007 Toyota Prius resolve the issue?
- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the P0122 code.
8. How much does it typically cost to repair the Throttle Position Sensor/Switch 'A' Circuit Low Input code in a 2007 Toyota Prius?
- The cost of repairs can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.
9. Can a DIY enthusiast fix the P0122 code in a 2007 Toyota Prius?
- Depending on your skill level and access to tools, you may be able to replace the throttle position sensor or check wiring connections yourself. However, more complex repairs may require professional assistance.
10. How important is it to address the OBDII code P0122 promptly in a 2007 Toyota Prius?
- It is crucial to address the P0122 code promptly to prevent further damage to your vehicle and maintain optimal performance and fuel efficiency.
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