AutoCodes – Nissan – P0123 2012 Nissan Pathfinder

P0123 2012 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit High Input

Quick Answer

The Throttle Position Sensor (TPS) 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
P0123 2012 Nissan Pathfinder indicates Throttle Position Sensor/Switch '1' Circuit High 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 2,562
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 P0123 2012 Nissan Pathfinder Description

The Throttle Position Sensor (TPS) 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 P0123 2012 Nissan Pathfinder - Throttle Position Sensor/Switch '1' Circuit High Input - AutoCodes.com
P0123 2012 Nissan Pathfinder Code - Throttle Position Sensor/Switch '1' Circuit High Input

What are the Possible Causes of the DTC P0123 2012 Nissan Pathfinder?

  • Faulty throttle position sensor
  • Throttle position sensor harness is open or shorted
  • Throttle position sensor circuit poor electrical connection

How to Fix the DTC P0123 2012 Nissan Pathfinder?

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 P0123 2012 Nissan Pathfinder 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 P0123 2012 Nissan Pathfinder code?

Need more information on how to fix the P0123 2012 Nissan Pathfinder code? Get Access to Factory Service Manuals

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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 2012 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P0123 on a 2012 Nissan Pathfinder?

- Common symptoms include issues with acceleration, lack of power, rough idling, and possible stalling of the vehicle.

2. What does the OBDII code P0123 indicate on a 2012 Nissan Pathfinder?

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

3. What are the possible causes of OBDII code P0123 on a 2012 Nissan Pathfinder?

- The possible causes include a faulty throttle position sensor, damaged wiring or connectors, a malfunctioning electronic throttle control system, or a problem with the engine control module.

4. How can I diagnose the issue related to the Throttle Position Sensor/Switch '1' Circuit High Input on a 2012 Nissan Pathfinder?

- You can use an OBDII scanner to read the trouble code and further diagnose the issue by checking the throttle position sensor's wiring, connectors, and the sensor itself.

5. Can driving with OBDII code P0123 on a 2012 Nissan Pathfinder cause more damage to the vehicle?

- Continuing to drive with this code may lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components over time.

6. How can I repair OBDII code P0123 on a 2012 Nissan Pathfinder?

- Repair options include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, or addressing any issues with the electronic throttle control system.

7. Is it safe to continue driving my 2012 Nissan Pathfinder with OBDII code P0123 present?

- It is not recommended to continue driving with this code present, as it can affect the vehicle's performance and potentially lead to further damage.

8. Can I reset the OBDII code P0123 on my 2012 Nissan Pathfinder by disconnecting the battery?

- Disconnecting the battery may clear the code temporarily, but it is important to diagnose and address the underlying issue to prevent the code from reappearing.

9. How much does it typically cost to repair OBDII code P0123 on a 2012 Nissan Pathfinder?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from $100 to $300 or more.

10. Are there any maintenance tips to prevent OBDII code P0123 from appearing on my 2012 Nissan Pathfinder in the future?

- Regularly inspecting and maintaining the throttle position sensor, wiring, and connectors, as well as following the manufacturer's recommended maintenance schedule, can help prevent this code from reoccurring.

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