AutoCodes – Nissan – P0122 2008 Nissan Versa

P0122 2008 Nissan Versa 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 Versa 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 7,279
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 Versa 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 Versa - Throttle Position Sensor/Switch '1' Circuit Low Input - AutoCodes.com
P0122 2008 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit Low Input

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

  • 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 Versa?

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 Versa 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 Versa code?

Need more information on how to fix the P0122 2008 Nissan Versa 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 Versa Code

1. What are the common symptoms of OBDII code P0122 in a 2008 Nissan Versa?

The common symptoms of OBDII code P0122 in a 2008 Nissan Versa include reduced engine power, hesitation or stalling when accelerating, and the vehicle going into "limp mode."

2. What are the possible causes of OBDII code P0122 in a 2008 Nissan Versa?

Possible causes of OBDII code P0122 in a 2008 Nissan Versa include a faulty throttle position sensor, damaged wiring or connectors in the TPS circuit, or a problem with the engine control module (ECM).

3. How can I diagnose the throttle position sensor (TPS) in a 2008 Nissan Versa with OBDII code P0122?

To diagnose the TPS in a 2008 Nissan Versa with OBDII code P0122, you can use a multimeter to check the voltage signal from the sensor. Ensure the TPS is getting power and ground, and test the sensor's resistance to determine if it is functioning properly.

4. What are some repair tips for fixing OBDII code P0122 in a 2008 Nissan Versa?

Some repair tips for fixing OBDII code P0122 in a 2008 Nissan Versa include checking the TPS wiring and connectors for damage, cleaning the throttle body, and resetting the ECM by disconnecting the battery for a few minutes.

5. Can I drive my 2008 Nissan Versa with OBDII code P0122?

It is not recommended to drive your 2008 Nissan Versa with OBDII code P0122, as the vehicle may experience performance issues and potentially go into "limp mode," which can be unsafe and cause further damage to the engine.

6. How much does it cost to repair OBDII code P0122 in a 2008 Nissan Versa?

The cost to repair OBDII code P0122 in a 2008 Nissan Versa can vary depending on the root cause of the issue. It may range from $100 to $300 for parts and labor if the throttle position sensor needs replacement.

7. Is OBDII code P0122 a common issue in 2008 Nissan Versa vehicles?

Yes, OBDII code P0122 related to the throttle position sensor circuit low input is a common issue in 2008 Nissan Versa vehicles, especially as the vehicle ages and the sensor may become worn out or fail.

8. How can I prevent OBDII code P0122 from occurring in my 2008 Nissan Versa?

To prevent OBDII code P0122 from occurring in your 2008 Nissan Versa, it is essential to perform regular maintenance on the vehicle, including cleaning the throttle body, checking the TPS wiring, and ensuring all connections are secure.

9. Can a DIY enthusiast fix OBDII code P0122 in a 2008 Nissan Versa?

A DIY enthusiast with some experience in automotive repair may be able to fix OBDII code P0122 in a 2008 Nissan Versa by following repair guides or tutorials. However, it is recommended to have a professional diagnosis if unsure.

10. Will disconnecting the battery reset OBDII code P0122 in my 2008 Nissan Versa?

Disconnecting the battery may temporarily reset OBDII code P0122 in your 2008 Nissan Versa, but if the underlying issue is not fixed, the code is likely to reappear once the ECM detects the problem again.

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