Engine-Codes.com
Engine-Codes – Nissan – P0123 2006 Nissan Pathfinder

P0123 2006 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit High Input

Quick Answer

The P0123 diagnostic trouble code (DTC) for a 2006 Nissan Pathfinder refers to the Throttle Position Sensor/Switch '1' Circuit High Input. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Malfunctioning ECM. 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
P0123 2006 Nissan Pathfinder indicates Throttle Position Sensor/Switch '1' Circuit High Input.
Common causes
Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Malfunctioning ECM.
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 13, 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 P0123 2006 Nissan Pathfinder Description

The P0123 diagnostic trouble code (DTC) for a 2006 Nissan Pathfinder refers to the Throttle Position Sensor/Switch '1' Circuit High Input. This code indicates that the engine control module (ECM) has detected a higher than expected voltage signal from the throttle position sensor (TPS) or throttle position switch. The TPS is a crucial component of the electronic throttle control system, as it informs the ECM about the position of the throttle plate. This information is essential for the ECM to adjust fuel delivery and ignition timing accurately.

OBDII Code P0123 2006 Nissan Pathfinder - Throttle Position Sensor/Switch '1' Circuit High Input
P0123 2006 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit High Input

Common Causes of P0123 2006 Nissan Pathfinder

  1. Faulty throttle position sensor
  2. Damaged wiring or connectors in the TPS circuit
  3. Malfunctioning ECM
  4. Corrosion or contamination in the TPS circuit
  5. Loose or disconnected TPS connector

Symptoms of P0123 2006 Nissan Pathfinder

  1. Erratic engine performance
  2. Poor acceleration
  3. Difficulty starting
  4. Stalling
  5. Transmission shifting issues

How to Fix P0123 2006 Nissan Pathfinder

  1. Begin by diagnosing the issue using a scan tool to confirm the P0123 code and identify the specific cause.
  2. Inspect the throttle position sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the TPS using a multimeter to check for proper voltage output and resistance.
  4. Replace the throttle position sensor if it is found to be faulty, ensuring proper installation and calibration.
  5. Clear the DTC and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0123 2006 Nissan Pathfinder

The typical repair costs for addressing a P0123 code on a 2006 Nissan Pathfinder can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more affordable options.

When is the Code Detected?

An excessively high voltage from the Throttle Position Sensor (TPS) '1' is sent to Engine Control Module (ECM).

Need more information about the P0123 2006 Nissan Pathfinder code?

Need more information on how to fix the P0123 2006 Nissan Pathfinder code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0123 2006 Nissan Pathfinder 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 P0123 2006 Nissan Pathfinder Code

1. What does OBDII code P0123 mean for a 2006 Nissan Pathfinder?

The code P0123 indicates a potential issue with the Throttle Position Sensor/Switch '1' Circuit showing a high input signal.

2. What are the common symptoms of OBDII code P0123 in a 2006 Nissan Pathfinder?

Common symptoms include poor acceleration, hesitation or stalling when pressing the gas pedal, and possibly even the vehicle going into "limp mode."

3. What are some possible causes of OBDII code P0123 in a 2006 Nissan Pathfinder?

Potential causes include a faulty throttle position sensor, a short or open circuit in the sensor wiring, or a problem with the engine control module (ECM).

4. How can I diagnose the issue related to OBDII code P0123 in my 2006 Nissan Pathfinder?

You can use a diagnostic scanner to read the code and check the throttle position sensor's voltage output. Additionally, inspecting the sensor wiring for any damage or corrosion can help identify the problem.

5. Is it safe to continue driving my 2006 Nissan Pathfinder with OBDII code P0123?

It is not recommended to drive the vehicle with a P0123 code as it can lead to further damage or safety hazards. It's best to address the issue promptly.

6. Can I repair OBDII code P0123 in my 2006 Nissan Pathfinder myself?

If you have experience with automotive repairs and diagnostics, you may be able to replace the throttle position sensor or repair the wiring yourself. However, it's recommended to consult a professional mechanic for accurate diagnosis and repair.

7. How much does it typically cost to repair OBDII code P0123 in a 2006 Nissan Pathfinder?

The cost of repairing P0123 can vary depending on the exact cause of the issue. Replacing a throttle position sensor might cost between $100 to $200, while addressing wiring issues or ECM problems could be more expensive.

8. Can resetting the OBDII code P0123 in a 2006 Nissan Pathfinder temporarily fix the issue?

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

9. Will OBDII code P0123 affect the fuel efficiency of my 2006 Nissan Pathfinder?

Yes, a faulty throttle position sensor can impact fuel efficiency as it plays a crucial role in regulating the air-fuel mixture. Resolving the P0123 code can help improve the vehicle's fuel economy.

10. How long does it typically take to repair OBDII code P0123 in a 2006 Nissan Pathfinder?

The repair time for P0123 can vary based on the specific issue causing the code. Simple fixes like replacing a sensor may take an hour or two, while more complex problems might require more time for diagnosis and repair.

Discuss the causes and fixes for P0123 2006 Nissan Pathfinder OBDII Code

Submit a New Comment

Code P0123 2006 Nissan Pathfinder comments

No comments found for this page.