AutoCodes – Nissan – P2123 2006 Nissan Maxima

P2123 2006 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

Quick Answer

The Accelerator Pedal Position (APP) sensor is installed on the upper end of the accelerator pedal assembly. Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal 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: P2123 2006 Nissan Maxima indicates Accelerator Pedal Position Sensor Circuit Range/Performance.
Common causes: Common causes include Faulty Accelerator Pedal Position Sensor, Accelerator Pedal Position Sensor harness is open or shorted, Accelerator Pedal 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 1,967

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
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2123 2006 Nissan Maxima Description

The Accelerator Pedal Position (APP) sensor is installed on the upper end of the accelerator pedal assembly. The sensor detects the accelerator position and sends a signal to the Engine Control Module (ECM). Accelerator pedal position sensor has two sensors. These sensors are a kind of potentiometers which transform the accelerator pedal position into output voltage, and emit the voltage signal to the ECM. In addition, these sensors detect the opening and closing speed of the accelerator pedal and feed the voltage signals to the ECM. The ECM judges the current opening angle of the accelerator pedal from these signals and controls the throttle control motor based on these signals. Idle position of the accelerator pedal is determined by the ECM receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for the engine operation such as fuel cut.

OBDII Code P2123 2006 Nissan Maxima - Accelerator Pedal Position Sensor Circuit Range/Performance - AutoCodes.com — P2123 2006 Nissan Maxima Code - Accelerator Pedal Position Sensor Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2123 2006 Nissan Maxima?

Faulty Accelerator Pedal Position Sensor
Accelerator Pedal Position Sensor harness is open or shorted
Accelerator Pedal Position Sensor circuit poor electrical connection

How to Fix the DTC P2123 2006 Nissan Maxima?

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 P2123 2006 Nissan Maxima 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 P2123 2006 Nissan Maxima 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 P2123 2006 Nissan Maxima Code

1. What are the common symptoms of OBDII code P2123 in a 2006 Nissan Maxima?

- Common symptoms include poor acceleration, engine stalling, rough idling, and the vehicle going into "limp mode" with reduced power.

2. What does the OBDII code P2123 for a 2006 Nissan Maxima indicate?

- The code signifies an issue with the Accelerator Pedal Position Sensor Circuit Range/Performance.

3. What are the possible causes of OBDII code P2123 in a 2006 Nissan Maxima?

- Potential causes include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or issues with the engine control module.

4. How can I diagnose the cause of OBDII code P2123 in my 2006 Nissan Maxima?

- Diagnose by conducting a visual inspection of the sensor and its connections, testing the sensor's voltage output, and checking for any damaged wiring or connectors.

5. Can I continue driving my 2006 Nissan Maxima with OBDII code P2123?

- It is not recommended to drive the vehicle with this code as it can lead to further damage or safety hazards, especially if the vehicle goes into "limp mode."

6. How can I repair OBDII code P2123 in my 2006 Nissan Maxima?

- Repair involves replacing the faulty accelerator pedal position sensor, repairing any damaged wiring or connectors, and clearing the error code with an OBDII scanner.

7. Is it necessary to reset the ECU after repairing OBDII code P2123 in a 2006 Nissan Maxima?

- Yes, resetting the Engine Control Unit (ECU) is recommended after making any repairs to ensure the code is cleared and the system relearns the new sensor data.

8. Will OBDII code P2123 in a 2006 Nissan Maxima affect fuel efficiency?

- Yes, issues with the accelerator pedal position sensor can impact fuel efficiency as the engine may not receive accurate input for proper fuel delivery.

9. Can a DIY enthusiast replace the accelerator pedal position sensor to fix OBDII code P2123 in a 2006 Nissan Maxima?

- Yes, replacing the sensor can be done by a DIY enthusiast with the necessary tools and knowledge, but proper care must be taken during the process.

10. How much can I expect to pay for parts and labor to repair OBDII code P2123 in a 2006 Nissan Maxima?

- Costs can vary, but typically you can expect to pay around $100 to $200 for the sensor and an additional $100 to $200 for labor at a mechanic's shop.