Engine-Codes.com
Engine-Codes – Nissan – P0122 2008 Nissan Versa

P0122 2008 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Quick Answer

The P0122 code for a 2008 Nissan Versa indicates a problem with the Throttle Position Sensor/Switch '1' Circuit, specifically a low input signal. Common causes include Faulty throttle position sensor, Damaged or corroded wiring/connectors between the TPS and ECM, ECM malfunction. 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, Damaged or corroded wiring/connectors between the TPS and ECM, ECM malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
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

Code P0122 2008 Nissan Versa Description

The P0122 code for a 2008 Nissan Versa indicates a problem with the Throttle Position Sensor/Switch '1' Circuit, specifically a low input signal. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic control system, as it monitors the position of the throttle valve and sends this information to the engine control module (ECM). The ECM uses this data to determine the appropriate fuel injection and ignition timing for optimal engine performance.

OBDII Code P0122 2008 Nissan Versa - Throttle Position Sensor/Switch '1' Circuit Low Input
P0122 2008 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit Low Input

Common Causes of P0122 2008 Nissan Versa

  1. Faulty throttle position sensor
  2. Damaged or corroded wiring/connectors between the TPS and ECM
  3. ECM malfunction
  4. Throttle body issues
  5. Poor electrical connection

Symptoms of P0122 2008 Nissan Versa

  1. Rough idling
  2. Stalling
  3. Hesitation during acceleration
  4. Poor fuel economy
  5. Engine misfires

How to Fix P0122 2008 Nissan Versa

  1. Begin by diagnosing the TPS using a multimeter to check for proper voltage output.
  2. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
  3. If the TPS is faulty, replace it with a new sensor following manufacturer guidelines.
  4. Clear the diagnostic trouble codes from the ECM using a scan tool.
  5. Test drive the vehicle to ensure the issue has been resolved and that the TPS is functioning correctly.

Cost to Fix P0122 2008 Nissan Versa

The cost of repairing a Throttle Position Sensor/Switch '1' Circuit Low Input issue on a 2008 Nissan Versa can vary depending on the specific cause of the problem. In general, the cost of a new TPS sensor can range from $50 to $150, while labor costs for installation can range from $100 to $200. Overall, the total repair cost could range from $150 to $350. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, labor rates, and any additional parts or repairs needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.

When is the Code Detected?

An excessively low voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

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?

Get the P0122 2008 Nissan Versa 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 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.

Discuss the causes and fixes for P0122 2008 Nissan Versa OBDII Code

Submit a New Comment

Code P0122 2008 Nissan Versa comments

No comments found for this page.