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

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

Quick Answer

The P0123 diagnostic trouble code (DTC) for a 2006 Nissan Maxima indicates a problem with the Throttle Position Sensor/Switch '1' Circuit High Input. Common causes include Faulty throttle position sensor, Damaged wiring or connectors in the TPS circuit, Dirty throttle body. 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 Maxima 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, Dirty throttle body.
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 15, 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 Maxima Description

The P0123 diagnostic trouble code (DTC) for a 2006 Nissan Maxima indicates a problem with the Throttle Position Sensor/Switch '1' Circuit High Input. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic fuel injection system, responsible for monitoring the position of the throttle valve and sending signals to the engine control unit (ECU) to adjust fuel delivery and ignition timing accordingly. When the TPS detects a high input signal, it means that the voltage reading from the sensor is higher than expected, indicating a potential issue with the sensor or its circuit.

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

Common Causes of P0123 2006 Nissan Maxima

  1. Faulty throttle position sensor
  2. Damaged wiring or connectors in the TPS circuit
  3. Dirty throttle body
  4. Malfunctioning engine control unit (ECU)
  5. Corrosion or poor connections in the sensor circuit

Symptoms of P0123 2006 Nissan Maxima

  1. Rough idling or stalling
  2. Poor acceleration or throttle response
  3. Engine misfires or hesitation
  4. Illuminated check engine light
  5. Reduced fuel efficiency

How to Fix P0123 2006 Nissan Maxima

  1. Begin by diagnosing the TPS using a multimeter to test for proper voltage output.
  2. Inspect the wiring and connectors in the TPS circuit for any damage or corrosion.
  3. Clean the throttle body to ensure smooth operation and accurate throttle position readings.
  4. If necessary, replace the throttle position sensor with a new, OEM-quality unit.
  5. Clear the DTC codes and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0123 2006 Nissan Maxima

The typical repair costs for addressing a P0123 code on a 2006 Nissan Maxima can vary depending on the specific cause of the issue. In general, replacing a faulty throttle position sensor can cost between $50 and $200, while cleaning the throttle body may require an additional $50 to $100. Labor costs at auto repair shops typically range from $80 to $150 per hour, with total repair costs likely falling in the $150 to $400 range. It is advisable to consult with a qualified mechanic or service center to obtain a more accurate estimate based on your location and vehicle specifics.

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 Maxima code?

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

Need Help with the Code?

Get the P0123 2006 Nissan Maxima 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 Maxima Code

1. What are the common symptoms of OBDII code P0123 in a 2006 Nissan Maxima?

- Common symptoms include issues with acceleration, poor engine performance, and the illumination of the Check Engine Light.

2. What does the OBDII code P0123 indicate in a 2006 Nissan Maxima?

- The code P0123 indicates a potential problem with the Throttle Position Sensor/Switch '1' Circuit High Input.

3. What are the possible causes of OBDII code P0123 in a 2006 Nissan Maxima?

- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the circuit, or a problem with the engine control module.

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

- You can diagnose the issue by using an OBDII scanner to retrieve the code, visually inspecting the throttle position sensor and its wiring, and performing voltage tests on the sensor.

5. Can I still drive my 2006 Nissan Maxima with OBDII code P0123?

- It is not recommended to drive the vehicle with code P0123, as it can lead to poor performance and potentially unsafe driving conditions.

6. How can I repair OBDII code P0123 in my 2006 Nissan Maxima?

- Repair options include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, and resetting the engine control module.

7. Is it possible to reset the OBDII code P0123 without fixing the underlying issue in a 2006 Nissan Maxima?

- While clearing the code may temporarily turn off the Check Engine Light, it is essential to address the root cause to prevent further problems.

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

- The cost can vary depending on the specific repair needed, but it may range from $100 to $300 for parts and labor.

9. Can I fix OBDII code P0123 in my 2006 Nissan Maxima myself, or should I seek professional help?

- If you have experience with automotive repairs and the necessary tools, you may attempt to fix the issue yourself. Otherwise, it is advisable to consult a professional mechanic.

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

- The repair time can vary based on the extent of the issue and the repair process involved, but it typically takes a few hours to complete the repair.

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

Submit a New Comment

Code P0123 2006 Nissan Maxima comments

No comments found for this page.