AutoCodes – Nissan – P0123 2006 Nissan Sentra

P0123 2006 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 2006 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 6,369

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0123 2006 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 2006 Nissan Sentra - Throttle Position Sensor/Switch '1' Circuit High Input - AutoCodes.com — P0123 2006 Nissan Sentra Code - Throttle Position Sensor/Switch '1' Circuit High Input

What does this mean?

What are the Possible Causes of the DTC P0123 2006 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 2006 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 2006 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 2006 Nissan Sentra Code

1. What are common symptoms of OBDII code P0123 in a 2006 Nissan Sentra?

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

2. What does the OBDII code P0123 in a 2006 Nissan Sentra indicate?

- This code indicates that the Throttle Position Sensor/Switch '1' circuit is experiencing a high input.

3. What are some possible causes of the Throttle Position Sensor/Switch '1' circuit high input in a 2006 Nissan Sentra?

- Causes may include a faulty throttle position sensor, wiring issues, a poor electrical connection, or a problem with the engine control module.

4. How can I diagnose the cause of OBDII code P0123 in my 2006 Nissan Sentra?

- Diagnosis typically involves checking the throttle position sensor's voltage, inspecting the sensor and its wiring for damage, and testing the electrical connections.

5. Can I drive my 2006 Nissan Sentra with OBDII code P0123?

- It is not recommended to drive the vehicle with this code, as it can lead to performance issues and potentially cause further damage to the engine.

6. How can I repair OBDII code P0123 in my 2006 Nissan Sentra?

- Repair may involve replacing the throttle position sensor, repairing or replacing damaged wiring, ensuring proper electrical connections, and clearing the code from the vehicle's computer.

7. How much does it cost to fix OBDII code P0123 in a 2006 Nissan Sentra?

- Repair costs can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can I reset the OBDII code P0123 in my 2006 Nissan Sentra without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is not recommended as the problem will likely persist and can lead to further complications.

9. Is it possible for a DIY enthusiast to fix OBDII code P0123 in a 2006 Nissan Sentra?

- Depending on your technical skills and access to tools, replacing a throttle position sensor or fixing wiring issues may be possible for a DIY enthusiast.

10. How often does OBDII code P0123 occur in 2006 Nissan Sentras?

- This code can occur sporadically in 2006 Nissan Sentras due to various factors such as wear and tear, environmental conditions, and electrical issues.