AutoCodes – Nissan – P0123 2007 Nissan Versa

P0123 2007 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 2007 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 9,474
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 2007 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 2007 Nissan Versa - Throttle Position Sensor/Switch '1' Circuit High Input - AutoCodes.com
P0123 2007 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit High Input

What are the Possible Causes of the DTC P0123 2007 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 2007 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 2007 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 2007 Nissan Versa code?

Need more information on how to fix the P0123 2007 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 2007 Nissan Versa Code

1. What are the common symptoms of OBDII code P0123 on a 2007 Nissan Versa?

The common symptoms of code P0123 include issues with acceleration, rough idling, stalling, and potentially an illuminated Check Engine Light on the dashboard.

2. What does the Throttle Position Sensor/Switch '1' Circuit High Input mean?

The code P0123 indicates that the Engine Control Module (ECM) has detected a high voltage input from the throttle position sensor or switch, signaling a potential issue with the sensor's circuit.

3. What are the possible causes of OBDII code P0123 on a 2007 Nissan Versa?

Common causes of code P0123 on a 2007 Nissan Versa include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning ECM.

4. How can I diagnose the Throttle Position Sensor/Switch '1' Circuit High Input issue?

To diagnose code P0123, you can use a scan tool to read the code, visually inspect the throttle position sensor and its wiring for any signs of damage, and conduct voltage testing on the sensor to determine if it is functioning correctly.

5. Can I still drive my 2007 Nissan Versa with OBDII code P0123?

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

6. How can I repair OBDII code P0123 on my 2007 Nissan Versa?

Repairing code P0123 typically involves replacing the throttle position sensor if it is faulty, repairing any damaged wiring or connectors in the sensor circuit, and clearing the trouble code with a scan tool.

7. Is it possible to reset OBDII code P0123 without fixing the underlying issue?

While you can clear the trouble code with a scan tool, it is essential to address the root cause of code P0123 to prevent further issues and ensure proper functioning of the throttle position sensor.

8. Can a DIY enthusiast fix OBDII code P0123 on a 2007 Nissan Versa?

Depending on your skill level and access to tools, a DIY enthusiast may be able to replace the throttle position sensor or repair wiring issues causing code P0123. However, it is recommended to seek professional help if unsure.

9. How much does it cost to repair OBDII code P0123 on a 2007 Nissan Versa?

The cost of repairing code P0123 can vary depending on the cause of the issue, labor rates in your area, and whether you choose to go to a dealership or an independent mechanic. It is advisable to get a few quotes for comparison.

10. Are there any preventive measures to avoid OBDII code P0123 on a 2007 Nissan Versa?

To help prevent code P0123, regular maintenance of your vehicle, including checking the throttle position sensor for any signs of wear or damage, can help catch potential issues early and avoid more significant problems down the road.

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