AutoCodes – Toyota – P0122 2006 Toyota Corolla

P0122 2006 Toyota Corolla Code - Throttle Position Sensor/Switch 'A' Circuit Low Input 3ZZ-FE Engine

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 Corolla indicates Throttle Position Sensor/Switch 'A' Circuit Low Input 3ZZ-FE Engine.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,826
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P0122 2006 Toyota Corolla Description

The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.
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.
OBDII Code P0122 2006 Toyota Corolla - Throttle Position Sensor/Switch 'A' Circuit Low Input 3ZZ-FE Engine - AutoCodes.com
P0122 2006 Toyota Corolla Code - Throttle Position Sensor/Switch 'A' Circuit Low Input 3ZZ-FE Engine

What are the Possible Causes of the DTC P0122 2006 Toyota Corolla?

  • 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 Corolla?

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 P0122 2006 Toyota Corolla 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 P0122 2006 Toyota Corolla code?

Need more information on how to fix the P0122 2006 Toyota Corolla code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0122 2006 Toyota Corolla 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 P0122 2006 Toyota Corolla Code

1. What are the common symptoms of OBDII code P0122 in a 2006 Toyota Corolla?

The common symptoms of OBDII code P0122 in a 2006 Toyota Corolla include poor acceleration, sluggish throttle response, and potentially stalling or rough idling.

2. What does the OBDII code P0122 indicate in a 2006 Toyota Corolla?

OBDII code P0122 in a 2006 Toyota Corolla indicates a Throttle Position Sensor/Switch 'A' Circuit Low Input issue related to the 3ZZ-FE engine.

3. What are the possible causes of OBDII code P0122 in a 2006 Toyota Corolla?

Possible causes of OBDII code P0122 in a 2006 Toyota Corolla include a faulty throttle position sensor, damaged wiring or connectors, or issues with the engine control module (ECM).

4. How can I diagnose the OBDII code P0122 in my 2006 Toyota Corolla?

To diagnose OBDII code P0122 in a 2006 Toyota Corolla, you can use an OBDII scanner to read the code, visually inspect the throttle position sensor and related wiring, and perform voltage tests to check sensor functionality.

5. Is it safe to continue driving with OBDII code P0122 in a 2006 Toyota Corolla?

It is not recommended to continue driving with OBDII code P0122 in a 2006 Toyota Corolla as it can lead to poor engine performance and potential safety issues due to erratic throttle response.

6. Can I reset the OBDII code P0122 in a 2006 Toyota Corolla by disconnecting the battery?

While disconnecting the battery may clear the code temporarily, it is important to address the underlying issue causing OBDII code P0122 in a 2006 Toyota Corolla to prevent it from reoccurring.

7. How can I repair OBDII code P0122 in my 2006 Toyota Corolla?

To repair OBDII code P0122 in a 2006 Toyota Corolla, you may need to replace the throttle position sensor, repair damaged wiring or connectors, or reset the ECM after addressing the root cause.

8. Can a DIY enthusiast fix OBDII code P0122 in a 2006 Toyota Corolla?

Depending on their skill level and access to tools, a DIY enthusiast may be able to fix OBDII code P0122 in a 2006 Toyota Corolla by following a repair manual or seeking guidance from online resources.

9. How much does it typically cost to repair OBDII code P0122 in a 2006 Toyota Corolla at a professional mechanic?

The cost to repair OBDII code P0122 in a 2006 Toyota Corolla at a professional mechanic can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

10. Are there any recalls or technical service bulletins related to OBDII code P0122 in a 2006 Toyota Corolla?

It is advisable to check with a Toyota dealership or online resources for any recalls or technical service bulletins related to OBDII code P0122 in a 2006 Toyota Corolla to see if there are any known issues or solutions provided by the manufacturer.

Discuss the causes and fixes for P0122 2006 Toyota Corolla OBDII Code

Code P0122 2006 Toyota Corolla comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play