AutoCodes – Nissan – P0122 2008 Nissan Pathfinder

P0122 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder 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 5,485
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 P0122 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder - Throttle Position Sensor/Switch '1' Circuit Low Input - AutoCodes.com
P0122 2008 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit Low Input

What are the Possible Causes of the DTC P0122 2008 Nissan Pathfinder?

  • 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 2008 Nissan Pathfinder?

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 2008 Nissan Pathfinder 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 2008 Nissan Pathfinder code?

Need more information on how to fix the P0122 2008 Nissan Pathfinder code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 2008 Nissan Pathfinder Code

1. What does OBDII code P0122 on a 2008 Nissan Pathfinder indicate?

The code P0122 indicates a Throttle Position Sensor/Switch '1' Circuit Low Input error on the vehicle.

2. What are the common symptoms associated with OBDII code P0122 on a 2008 Nissan Pathfinder?

Common symptoms of P0122 may include poor acceleration, stalling, rough idling, and a lack of responsiveness when pressing the gas pedal.

3. What are the possible causes of OBDII code P0122 on a 2008 Nissan Pathfinder?

Potential causes of P0122 include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

4. How can I diagnose the OBDII code P0122 on my 2008 Nissan Pathfinder?

To diagnose P0122, you can use an OBDII scanner to read the code, visually inspect the throttle position sensor and its wiring, and perform a voltage test on the sensor to check for proper operation.

5. Is it safe to continue driving with OBDII code P0122 on a 2008 Nissan Pathfinder?

It is not recommended to drive with P0122 as it can lead to potential safety hazards and further damage to the vehicle. It's best to address the issue promptly.

6. Can I repair OBDII code P0122 on a 2008 Nissan Pathfinder myself?

Depending on your mechanical skills, you may be able to replace the throttle position sensor yourself. However, if you're unsure, it's advisable to seek professional help to ensure the repair is done correctly.

7. How much does it typically cost to repair OBDII code P0122 on a 2008 Nissan Pathfinder?

The cost of repairing P0122 can vary depending on the root cause of the issue, the labor rates in your area, and whether you choose to do the repair yourself or take it to a mechanic. It's recommended to get a few quotes for an accurate estimate.

8. Can a dirty throttle body cause OBDII code P0122 on a 2008 Nissan Pathfinder?

A dirty throttle body may not directly cause P0122, but it can affect the overall performance of the throttle system. It's a good idea to clean the throttle body as part of routine maintenance.

9. Will resetting the OBDII code P0122 on a 2008 Nissan Pathfinder make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing P0122 is not addressed, the code is likely to reappear. It's important to diagnose and fix the root cause of the problem.

10. How important is the throttle position sensor in the overall performance of a 2008 Nissan Pathfinder?

The throttle position sensor plays a crucial role in the proper functioning of the engine by communicating the position of the throttle to the engine control module. A faulty sensor can lead to various performance issues and should be addressed promptly.

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