AutoCodes – Nissan – P0123 2010 Nissan Sentra

P0123 2010 Nissan Sentra 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 Sentra 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.

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Code Popularity 7,893

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 01, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0123 2010 Nissan Sentra 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 Sentra - Throttle Position Sensor/Switch '1' Circuit High Input - AutoCodes.com — P0123 2010 Nissan Sentra Code - Throttle Position Sensor/Switch '1' Circuit High Input

What does this mean?

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

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 Sentra?

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 Sentra 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.

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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 Sentra Code

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

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

2. What does the OBDII code P0123 on a 2010 Nissan Sentra indicate?

- The code P0123 indicates a high input signal in the Throttle Position Sensor/Switch '1' circuit of the vehicle.

3. What are the possible causes of OBDII code P0123 on a 2010 Nissan Sentra?

- Possible causes include a faulty throttle position sensor, damaged wiring in the circuit, a malfunctioning engine control module (ECM), or a poor electrical connection.

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

- Diagnosing the code involves using an OBDII scanner to retrieve the code, checking the throttle position sensor and its wiring for any issues, and testing the sensor's voltage output.

5. Can I still drive my 2010 Nissan Sentra with OBDII code P0123 present?

- It is not recommended to drive the vehicle with code P0123 present, as it can lead to performance issues and potential safety hazards.

6. How can I repair OBDII code P0123 on my 2010 Nissan Sentra?

- Repair options include replacing the throttle position sensor, repairing any damaged wiring, ensuring a secure electrical connection, or resetting the ECM.

7. Are there any DIY tips for fixing OBDII code P0123 in a 2010 Nissan Sentra?

- While some basic troubleshooting can be done, it is recommended to consult a professional mechanic for a proper diagnosis and repair to ensure the issue is resolved correctly.

8. How much does it cost to fix OBDII code P0123 on a 2010 Nissan Sentra?

- The cost can vary depending on the specific cause of the issue, but it typically ranges from $100 to $300 for parts and labor.

9. Will resetting the OBDII code P0123 on my 2010 Nissan Sentra make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not fixed, the code is likely to reappear.

10. Is OBDII code P0123 a common problem in 2010 Nissan Sentras?

- While it may not be extremely common, issues with the throttle position sensor leading to code P0123 can occur in 2010 Nissan Sentras and other vehicles.