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Engine-Codes – Nissan – P0123 2010 Nissan Pathfinder

P0123 2010 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit High Input

Quick Answer

The P0123 diagnostic trouble code (DTC) for a 2010 Nissan Pathfinder indicates a problem with the Throttle Position Sensor/Switch '1' Circuit, specifically a high input signal. Common causes include Faulty throttle position sensor, Wiring or connector issues in the TPS circuit, Corrosion or contamination in the sensor or circuit. 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 2010 Nissan Pathfinder indicates Throttle Position Sensor/Switch '1' Circuit High Input.
Common causes
Common causes include Faulty throttle position sensor, Wiring or connector issues in the TPS circuit, Corrosion or contamination in the sensor or circuit.
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 17, 2024
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Code P0123 2010 Nissan Pathfinder Description

The P0123 diagnostic trouble code (DTC) for a 2010 Nissan Pathfinder indicates a problem with the Throttle Position Sensor/Switch '1' Circuit, specifically a high input signal. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic throttle control system, as it monitors the position of the throttle pedal and sends this information to the engine control module (ECM). The ECM uses this data to adjust the air-fuel mixture and ignition timing for optimal engine performance.

OBDII Code P0123 2010 Nissan Pathfinder - Throttle Position Sensor/Switch '1' Circuit High Input
P0123 2010 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit High Input

Common Causes of P0123 2010 Nissan Pathfinder

  1. Faulty throttle position sensor
  2. Wiring or connector issues in the TPS circuit
  3. Corrosion or contamination in the sensor or circuit
  4. ECM software or hardware malfunction
  5. Mechanical issues affecting the throttle body operation

Symptoms of P0123 2010 Nissan Pathfinder

  1. Reduced engine power or acceleration
  2. Rough idling or stalling
  3. Poor fuel economy
  4. Illumination of the Check Engine Light
  5. Difficulty shifting gears in automatic transmissions

How to Fix P0123 2010 Nissan Pathfinder

  1. Begin by diagnosing the TPS using a scan tool to confirm the P0123 code and check for any related codes.
  2. Inspect the wiring and connectors in the TPS circuit for any damage, corrosion, or loose connections. Repair or replace as needed.
  3. Test the TPS using a multimeter to verify its functionality. Replace the sensor if it fails to provide accurate readings.
  4. Clear the DTC using the scan tool and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to identify any underlying issues with the ECM or throttle body.

Cost to Fix P0123 2010 Nissan Pathfinder

The typical repair costs for addressing a P0123 code on a 2010 Nissan Pathfinder can range from $100 to $300, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire about local rates for a more accurate estimate. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops often offer more competitive prices.

When is the Code Detected?

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

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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 P0123 2010 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0123 in a 2010 Nissan Pathfinder?

- Common symptoms include issues with acceleration, rough idling, poor fuel efficiency, and potential stalling of the vehicle.

2. What are the possible causes of the Throttle Position Sensor/Switch '1' Circuit High Input error code in a 2010 Nissan Pathfinder?

- The code P0123 in a 2010 Nissan Pathfinder is often triggered by a faulty throttle position sensor, wiring issues, or a problem with the throttle body itself.

3. How can I diagnose the cause of OBDII code P0123 in my 2010 Nissan Pathfinder?

- To diagnose the issue, you can use a scan tool to check for the specific error code, inspect the throttle position sensor for any visible damage, and test the sensor's voltage output.

4. Is it safe to continue driving my 2010 Nissan Pathfinder with the P0123 error code?

- It is not recommended to drive your vehicle with the P0123 code as it can lead to poor performance and potential safety hazards. It is best to address the issue promptly.

5. Can I repair the Throttle Position Sensor/Switch '1' Circuit High Input error in my 2010 Nissan Pathfinder myself?

- Depending on your level of automotive experience, you may be able to replace the throttle position sensor or repair wiring issues yourself. However, seeking professional help is advisable for accurate diagnosis and repair.

6. How much does it typically cost to repair the P0123 error code in a 2010 Nissan Pathfinder?

- The cost of repairing the P0123 code can vary depending on the extent of the issue and whether you choose to do it yourself or seek professional assistance. Costs may range from $100 to $300 or more.

7. Are there any temporary solutions to address the P0123 error in my 2010 Nissan Pathfinder?

- While there may be temporary fixes like resetting the error code through a scan tool, it is crucial to address the root cause of the problem to prevent further issues.

8. Will the P0123 error code cause my 2010 Nissan Pathfinder to fail an emissions test?

- Yes, the P0123 error code can lead to emission-related issues, potentially causing your vehicle to fail an emissions test. It is important to address the code to ensure your vehicle meets emission standards.

9. How long does it typically take to repair the Throttle Position Sensor/Switch '1' Circuit High Input error in a 2010 Nissan Pathfinder?

- The repair time for the P0123 code can vary depending on the exact cause of the issue and the complexity of the repair. It may take a few hours to a full day to complete the repair.

10. Can a faulty throttle position sensor cause other problems in my 2010 Nissan Pathfinder?

- Yes, a faulty throttle position sensor can cause a range of issues beyond triggering the P0123 error code, including poor acceleration, transmission shifting problems, and overall drivability issues.

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