AutoCodes – Nissan – P0123 2010 Nissan Versa

P0123 2010 Nissan Versa 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 2010 Nissan Versa 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 5,610
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 2010 Nissan Versa 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 2010 Nissan Versa - Throttle Position Sensor/Switch '1' Circuit High Input - AutoCodes.com
P0123 2010 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit High Input

What are the Possible Causes of the DTC P0123 2010 Nissan Versa?

  • 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 2010 Nissan Versa?

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 2010 Nissan Versa 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 2010 Nissan Versa code?

Need more information on how to fix the P0123 2010 Nissan Versa code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 Versa Code

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

The common symptoms of code P0123 include issues with acceleration, reduced engine power, surging or hesitation while driving, and in some cases, the vehicle going into "limp mode."

2. What does the OBDII code P0123 'Throttle Position Sensor/Switch '1' Circuit High Input' indicate in a 2010 Nissan Versa?

Code P0123 typically indicates that the Engine Control Module (ECM) has detected a higher than expected voltage from the throttle position sensor or its circuit.

3. What are the possible causes of OBDII code P0123 in a 2010 Nissan Versa?

Potential causes of code P0123 include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, a dirty throttle body, or an issue with the ECM.

4. How can I diagnose the OBDII code P0123 in my 2010 Nissan Versa?

Diagnosing code P0123 involves using a scan tool to read the code, checking the throttle position sensor's voltage with a multimeter, inspecting the wiring and connectors for damage, and testing the throttle body for proper operation.

5. Can I continue driving my 2010 Nissan Versa with OBDII code P0123?

It is not recommended to continue driving with code P0123 present, as it can lead to further damage to the engine or drivetrain components. It's best to address the issue promptly.

6. How do I repair OBDII code P0123 in my 2010 Nissan Versa?

Repairing code P0123 may involve replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, cleaning the throttle body, or reprogramming the ECM if necessary.

7. Will resetting the OBDII code P0123 in my 2010 Nissan Versa make it go away permanently?

Resetting the code without addressing the underlying issue will not make it go away permanently. The root cause of the problem needs to be identified and fixed to prevent the code from reoccurring.

8. Can a DIY enthusiast fix OBDII code P0123 in a 2010 Nissan Versa?

Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to address code P0123 by replacing the throttle position sensor or checking the wiring. However, more complex diagnostics may require professional assistance.

9. How much does it cost to repair OBDII code P0123 in a 2010 Nissan Versa?

The cost of repairing code P0123 can vary depending on the specific issue causing the code, the labor rates in your area, and whether you choose to do the repairs yourself or take your vehicle to a mechanic. Costs may range from a few hundred to over a thousand dollars.

10. Can OBDII code P0123 in a 2010 Nissan Versa cause other problems if left untreated?

If left untreated, code P0123 can potentially lead to poor engine performance, decreased fuel efficiency, and further damage to related components such as the throttle body or ECM. It is important to address the issue promptly to prevent additional problems.

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