AutoCodes – Nissan – P2128 Nissan

P2128 Nissan 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 Nissan 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 20,655

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

What does this mean?

What are the Possible Causes of the DTC P2128 Nissan?

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 Nissan?

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 Nissan 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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Information for Specific Nissan Models

P2128 2003 Nissan Altima Sedan — Accelerator Pedal Position Sensor Circuit
P2128 2004 Nissan Altima Sedan — Accelerator Pedal Position Sensor Circuit
P2128 2005 Nissan Altima Sedan — Accelerator Pedal Position Sensor Circuit
P2128 2006 Nissan Altima Sedan — Accelerator Pedal Position Sensor Circuit
P2128 2008 Nissan Altima Sedan — Accelerator Pedal Position Sensor Circuit
P2128 2009 Nissan Altima Sedan — Accelerator Pedal Position Sensor Circuit
P2128 2010 Nissan Altima Sedan — Accelerator Pedal Position Sensor Circuit
P2128 2011 Nissan Altima Sedan — Accelerator Pedal Position Sensor Circuit
P2128 2012 Nissan Altima Sedan — Accelerator Pedal Position Sensor Circuit
P2128 2005 Nissan Pathfinder — Accelerator Pedal Position Sensor Circuit
P2128 2006 Nissan Pathfinder — Accelerator Pedal Position Sensor Circuit
P2128 2007 Nissan Pathfinder — Accelerator Pedal Position Sensor Circuit
P2128 2008 Nissan Pathfinder — Accelerator Pedal Position Sensor Circuit
P2128 2009 Nissan Pathfinder — Accelerator Pedal Position Sensor Circuit
P2128 2010 Nissan Pathfinder — Accelerator Pedal Position Sensor Circuit
P2128 2011 Nissan Pathfinder — Accelerator Pedal Position Sensor Circuit
P2128 2012 Nissan Pathfinder — Accelerator Pedal Position Sensor Circuit
P2128 2008 Nissan Rogue — Accelerator Pedal Position Sensor Circuit
P2128 2009 Nissan Rogue — Accelerator Pedal Position Sensor Circuit
P2128 2010 Nissan Rogue — Accelerator Pedal Position Sensor Circuit
P2128 2011 Nissan Rogue — Accelerator Pedal Position Sensor Circuit
P2128 2012 Nissan Rogue — Accelerator Pedal Position Sensor Circuit
P2128 2013 Nissan Rogue — Accelerator Pedal Position Sensor Circuit
P2128 2007 Nissan Sentra — Accelerator Pedal Position Sensor Circuit
P2128 2008 Nissan Sentra — Accelerator Pedal Position Sensor Circuit
P2128 2009 Nissan Sentra — Accelerator Pedal Position Sensor Circuit
P2128 2010 Nissan Sentra — Accelerator Pedal Position Sensor Circuit
P2128 2011 Nissan Sentra — Accelerator Pedal Position Sensor Circuit
P2128 2012 Nissan Sentra — Accelerator Pedal Position Sensor Circuit

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.