AutoCodes – Nissan – P2128 2007 Nissan Pathfinder

P2128 2007 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 2007 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 1,972

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 2007 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 2007 Nissan Pathfinder - Accelerator Pedal Position Sensor Circuit - AutoCodes.com — P2128 2007 Nissan Pathfinder Code - Accelerator Pedal Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P2128 2007 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 2007 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 2007 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 2007 Nissan Pathfinder 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 P2128 2007 Nissan Pathfinder Code

1. What are common symptoms of OBDII code P2128 in a 2007 Nissan Pathfinder?

- Common symptoms include reduced engine power, acceleration issues, and the vehicle going into a "limp mode" to prevent further damage.

2. What does the OBDII code P2128 indicate in a 2007 Nissan Pathfinder?

- OBDII code P2128 specifically relates to an issue with the Accelerator Pedal Position Sensor Circuit.

3. What are the possible causes of OBDII code P2128 in a 2007 Nissan Pathfinder?

- Possible causes include a faulty accelerator pedal position sensor, wiring or connector issues, or a problem with the engine control module.

4. How can I diagnose the OBDII code P2128 in my 2007 Nissan Pathfinder?

- Diagnosing this code typically involves using a scan tool to retrieve the code, checking the wiring and connections related to the accelerator pedal position sensor, and testing the sensor itself for proper operation.

5. Can I continue driving my 2007 Nissan Pathfinder with OBDII code P2128?

- It is not recommended to continue driving with this code present, as it can lead to further engine or drivability issues.

6. How can I repair OBDII code P2128 in my 2007 Nissan Pathfinder?

- Repair options may include replacing the accelerator pedal position sensor, repairing any damaged wiring or connectors, or reprogramming the engine control module.

7. Will resetting the OBDII code P2128 in my 2007 Nissan Pathfinder fix the issue?

- Simply resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the code to trigger.

8. Can a DIY enthusiast fix OBDII code P2128 in a 2007 Nissan Pathfinder?

- Depending on the level of expertise and access to tools, some DIY enthusiasts may be able to address this issue themselves by following proper diagnostic and repair procedures.

9. How much does it typically cost to repair OBDII code P2128 in a 2007 Nissan Pathfinder?

- The cost of repair can vary based on the specific cause of the issue, but it may involve parts and labor expenses ranging from $100 to $300 or more.

10. Is OBDII code P2128 a common problem in 2007 Nissan Pathfinders?

- While not extremely common, issues related to the Accelerator Pedal Position Sensor Circuit can occur in 2007 Nissan Pathfinders and other vehicles, requiring proper diagnosis and repair.