AutoCodes – Nissan – P2128 2006 Nissan Pathfinder

P2128 2006 Nissan Pathfinder Code - Accelerator Pedal Position Sensor Circuit

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 (APP) Sensor, Accelerator Pedal Position (APP) Sensor harness is open or shorted, Accelerator Pedal Position (APP) 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: P2128 2006 Nissan Pathfinder indicates Accelerator Pedal Position Sensor Circuit.
Common causes: Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position (APP) Sensor harness is open or shorted, Accelerator Pedal Position (APP) 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 2,145

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 P2128 2006 Nissan Pathfinder 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 an 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 P2128 2006 Nissan Pathfinder - Accelerator Pedal Position Sensor Circuit - AutoCodes.com — P2128 2006 Nissan Pathfinder Code - Accelerator Pedal Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P2128 2006 Nissan Pathfinder?

Faulty Accelerator Pedal Position (APP) Sensor
Accelerator Pedal Position (APP) Sensor harness is open or shorted
Accelerator Pedal Position (APP) Sensor circuit poor electrical connection
Faulty Engine Control Module (ECM)
Electric Throttle Control Actuator(Throttle Body)

How to Fix the DTC P2128 2006 Nissan Pathfinder?

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 P2128 2006 Nissan Pathfinder 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 P2128 2006 Nissan Pathfinder code?

Need more information on how to fix the P2128 2006 Nissan Pathfinder code? Get Access to Factory Service Manuals

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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 P2128 2006 Nissan Pathfinder Code

1. What are the common symptoms of OBDII code P2128 on a 2006 Nissan Pathfinder?

The common symptoms of OBDII code P2128 include loss of power, poor acceleration, and the vehicle going into "limp mode" where it won't go above a certain speed.

2. What can cause the OBDII code P2128 to appear in a 2006 Nissan Pathfinder?

The most common cause of OBDII code P2128 in a 2006 Nissan Pathfinder is a faulty accelerator pedal position sensor or a malfunction in the sensor circuit.

3. How can I diagnose the accelerator pedal position sensor circuit issue triggering OBDII code P2128 on my 2006 Nissan Pathfinder?

To diagnose the issue, you can use an OBDII scanner to read the trouble code, visually inspect the accelerator pedal position sensor and circuit for any visible damage, and perform a voltage test on the sensor.

4. Can I still drive my 2006 Nissan Pathfinder with the OBDII code P2128 present?

It is not recommended to drive your 2006 Nissan Pathfinder with the OBDII code P2128 present, as it can lead to further damage and unsafe driving conditions due to the potential loss of power.

5. How can I repair the OBDII code P2128 issue on my 2006 Nissan Pathfinder?

To repair the OBDII code P2128 on your 2006 Nissan Pathfinder, you may need to replace the accelerator pedal position sensor, repair any damaged wiring or connections in the sensor circuit, and clear the trouble code using an OBDII scanner.

6. Are there any DIY tips for fixing the OBDII code P2128 on a 2006 Nissan Pathfinder?

While it is recommended to have a professional diagnose and repair the OBDII code P2128, you can try checking the sensor wiring for any visible damage and ensuring proper connections before considering a sensor replacement.

7. How much does it cost to fix the OBDII code P2128 issue on a 2006 Nissan Pathfinder?

The cost of fixing the OBDII code P2128 on a 2006 Nissan Pathfinder can vary depending on the extent of the issue, but it typically ranges from $200 to $500 for parts and labor.

8. Will resetting the OBDII code P2128 on my 2006 Nissan Pathfinder make it go away permanently?

Resetting the OBDII code P2128 on your 2006 Nissan Pathfinder may temporarily clear the code, but if the underlying issue with the accelerator pedal position sensor circuit is not addressed, the code is likely to reappear.

9. Can a bad accelerator pedal position sensor affect the fuel efficiency of a 2006 Nissan Pathfinder?

Yes, a bad accelerator pedal position sensor can affect the fuel efficiency of a 2006 Nissan Pathfinder by causing improper fuel delivery and combustion due to inaccurate throttle position readings.

10. Is it safe to continue driving my 2006 Nissan Pathfinder if the OBDII code P2128 appears intermittently?

It is not recommended to continue driving your 2006 Nissan Pathfinder if the OBDII code P2128 appears intermittently, as it indicates a potential issue with the accelerator pedal position sensor circuit that can compromise vehicle performance and safety.