AutoCodes – Nissan – P0122 Nissan

P0122 Nissan Code - Throttle Position Sensor/Switch '1' 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 Nissan indicates Throttle Position Sensor/Switch '1' 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 31,595
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 Nissan 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 Nissan - Throttle Position Sensor/Switch '1' Circuit Low Input - AutoCodes.com
P0122 Nissan Code - Throttle Position Sensor/Switch '1' Circuit Low Input

What are the Possible Causes of the DTC P0122 Nissan?

  • Faulty throttle position sensor
  • Throttle position sensor harness is open or shorted
  • Throttle position sensor circuit poor electrical connection
  • Faulty accelerator pedal position sensor

How to Fix the DTC P0122 Nissan?

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 Nissan 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 Nissan code?

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

Need Help with the Code?

Get the P0122 Nissan code diagnosed by a professional: Find a repair shop in your area

Information for Specific Nissan Models

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 Nissan Code

1. What are the common symptoms of OBDII code P0122 in a Nissan related to the Throttle Position Sensor/Switch '1' Circuit Low Input?

- Common symptoms include poor acceleration, stalling or rough idling, reduced fuel efficiency, and the Check Engine light illuminating on the dashboard.

2. What could cause the OBDII code P0122 in a Nissan indicating an issue with the Throttle Position Sensor/Switch '1' Circuit Low Input?

- Potential causes include a faulty throttle position sensor, damaged wiring or connectors related to the sensor, or issues with the sensor circuit itself.

3. How can I diagnose the OBDII code P0122 in my Nissan that points to a problem with the Throttle Position Sensor/Switch '1' Circuit Low Input?

- Diagnosis typically involves using an OBDII scanner to read the trouble code, checking the throttle position sensor's voltage with a multimeter, and inspecting the sensor's wiring for any visible damage.

4. Is it safe to continue driving my Nissan with the OBDII code P0122 related to the Throttle Position Sensor/Switch '1' Circuit Low Input?

- It is not recommended to drive the vehicle with this issue as it can lead to poor performance and potential safety hazards. It's best to address the problem promptly.

5. What are some repair tips for fixing the OBDII code P0122 in a Nissan caused by the Throttle Position Sensor/Switch '1' Circuit Low Input?

- Repair tips may include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, clearing the trouble code with an OBDII scanner, and performing a throttle position sensor relearn procedure if necessary.

6. Can a DIY enthusiast replace the throttle position sensor to resolve the OBDII code P0122 in a Nissan?

- Yes, replacing the throttle position sensor can be a DIY-friendly task with the right tools and instructions. However, if unsure, it's best to consult a professional mechanic for assistance.

7. Are there any recalls or service bulletins related to the OBDII code P0122 in Nissan vehicles with issues concerning the Throttle Position Sensor/Switch '1' Circuit Low Input?

- It's advisable to check with Nissan dealerships or online resources to see if there are any recalls or service bulletins addressing this specific problem in your Nissan model.

8. How much does it typically cost to repair the OBDII code P0122 caused by the Throttle Position Sensor/Switch '1' Circuit Low Input in a Nissan?

- The cost can vary depending on the exact cause of the issue, but it may range from around $100 to $300 for parts and labor, excluding any additional diagnostic fees.

9. Will resetting the Check Engine light make the OBDII code P0122 related to the Throttle Position Sensor/Switch '1' Circuit Low Input go away?

- Resetting the Check Engine light may temporarily clear the code, but if the underlying issue with the throttle position sensor persists, the code is likely to reappear after driving the vehicle for a while.

Discuss the causes and fixes for P0122 Nissan OBDII Code

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