AutoCodes – Nissan – P0123 2012 Nissan Versa

P0123 2012 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 2012 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 14,485
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 06, 2022
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Code P0123 2012 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 2012 Nissan Versa - Throttle Position Sensor/Switch '1' Circuit High Input - AutoCodes.com
P0123 2012 Nissan Versa Code - Throttle Position Sensor/Switch '1' Circuit High Input

What are the Possible Causes of the DTC P0123 2012 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 2012 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 2012 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 2012 Nissan Versa code?

Need more information on how to fix the P0123 2012 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 2012 Nissan Versa Code

1. What are the common symptoms of OBDII code P0123 in a 2012 Nissan Versa?

- Common symptoms include issues with acceleration, rough idling, stalling, and potentially decreased fuel efficiency.

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

- The code P0123 indicates a high input signal from the throttle position sensor or switch '1' circuit.

3. What are the possible causes of the throttle position sensor/switch '1' circuit high input error in a 2012 Nissan Versa?

- Potential 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 OBDII code P0123 in my 2012 Nissan Versa?

- Diagnosis typically involves using a scan tool to retrieve the trouble code, checking the throttle position sensor's voltage readings, inspecting wiring and connectors for damage, and testing the electronic throttle control system.

5. Can I continue driving my 2012 Nissan Versa with OBDII code P0123?

- It is not recommended to drive the vehicle with this error code, as it can lead to poor performance, potential stalling, and other safety concerns.

6. How can I fix the throttle position sensor/switch '1' circuit high input issue in my 2012 Nissan Versa?

- Repair options include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, addressing any electronic throttle control system problems, or reprogramming the engine control module.

7. Is it possible to reset the OBDII code P0123 in a 2012 Nissan Versa without fixing the underlying issue?

- While clearing the trouble code may temporarily turn off the Check Engine light, it will not solve the root cause of the problem and the code is likely to return.

8. How much does it cost to repair OBDII code P0123 in a 2012 Nissan Versa?

- Repair costs can vary based on the specific issue causing the code, but expenses may include parts and labor for sensor replacement, wiring repairs, or electronic system diagnostics.

9. Are there any maintenance tips to prevent OBDII code P0123 from occurring in a 2012 Nissan Versa?

- Regularly inspecting and maintaining the throttle position sensor, wiring, and connectors can help prevent issues that may trigger the P0123 error code.

10. Can a DIY enthusiast fix the throttle position sensor/switch '1' circuit high input problem in a 2012 Nissan Versa?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to tackle sensor replacement, wiring repairs, or other related tasks to address the P0123 code.

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