AutoCodes – Nissan – P2128 2011 Nissan Sentra

P2128 2011 Nissan Sentra 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 2011 Nissan Sentra 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 1,881

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 2011 Nissan Sentra 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 2011 Nissan Sentra - Accelerator Pedal Position Sensor Circuit - AutoCodes.com — P2128 2011 Nissan Sentra Code - Accelerator Pedal Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P2128 2011 Nissan Sentra?

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 2011 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 P2128 2011 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.

Need more information about the P2128 2011 Nissan Sentra 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 2011 Nissan Sentra Code

1. What are the common symptoms of OBDII code P2128 in a 2011 Nissan Sentra?

- Common symptoms include the vehicle going into limp mode, loss of power, acceleration issues, and the check engine light illuminating.

2. What does OBDII code P2128 indicate in a 2011 Nissan Sentra?

- OBDII code P2128 indicates a problem with the accelerator pedal position sensor circuit in the vehicle.

3. What are the possible causes of OBDII code P2128 in a 2011 Nissan Sentra?

- Possible 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 issue causing OBDII code P2128 in my 2011 Nissan Sentra?

- Diagnosing the issue may involve checking the sensor's wiring and connectors for damage, testing the sensor's resistance, and using a scan tool to monitor sensor data.

5. Can I continue driving my 2011 Nissan Sentra with OBDII code P2128?

- It is not recommended to continue driving the vehicle with code P2128 as it can lead to unsafe driving conditions and potential damage to the engine.

6. How can I repair OBDII code P2128 in my 2011 Nissan Sentra?

- Repairing the issue may involve replacing the accelerator pedal position sensor, repairing damaged wiring or connectors, or reprogramming the engine control module.

7. Is it possible to reset OBDII code P2128 in a 2011 Nissan Sentra without fixing the underlying issue?

- While you can clear the code with a scan tool, it is important to address the root cause of the problem to prevent it from recurring.

8. Are there any tips to prevent OBDII code P2128 from occurring in a 2011 Nissan Sentra?

- Regularly inspecting and maintaining the accelerator pedal position sensor, wiring, and connectors can help prevent code P2128 from occurring.

9. How long does it typically take to repair OBDII code P2128 in a 2011 Nissan Sentra?

- The repair time can vary depending on the exact cause of the issue, but it may take a few hours to a full day to diagnose and fix the problem.

10. Can a DIY enthusiast without much experience repair OBDII code P2128 in a 2011 Nissan Sentra?

- While some aspects of the repair may be DIY-friendly, dealing with complex electronic components like sensors and modules may require professional expertise to ensure proper diagnosis and repair.