AutoCodes – Nissan – P2122 2012 Nissan Altima Sedan

P2122 2012 Nissan Altima Sedan 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: P2122 2012 Nissan Altima Sedan 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 2,553

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 P2122 2012 Nissan Altima Sedan 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 P2122 2012 Nissan Altima Sedan - Accelerator Pedal Position Sensor Circuit Range/Performance - AutoCodes.com — P2122 2012 Nissan Altima Sedan Code - Accelerator Pedal Position Sensor Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P2122 2012 Nissan Altima Sedan?

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 P2122 2012 Nissan Altima Sedan?

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 P2122 2012 Nissan Altima Sedan 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 P2122 2012 Nissan Altima Sedan code?

Need more information on how to fix the P2122 2012 Nissan Altima Sedan 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 P2122 2012 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P2122 in a 2012 Nissan Altima Sedan?

The common symptoms of code P2122 include issues with acceleration, reduced engine power, and possibly the vehicle going into "limp mode" where it operates at reduced performance.

2. What causes the OBDII code P2122 in a 2012 Nissan Altima Sedan?

The P2122 code is typically triggered by a fault in the accelerator pedal position sensor circuit, indicating a range/performance issue. This may be due to a faulty sensor, damaged wiring, or poor electrical connections.

3. How serious is the OBDII code P2122 in a 2012 Nissan Altima Sedan?

While the vehicle may still be operable with the P2122 code, it is important to address the issue promptly to prevent potential safety hazards and further damage to the engine or transmission.

4. Can I continue driving my 2012 Nissan Altima Sedan with the P2122 code?

It is not recommended to continue driving the vehicle with the P2122 code present, as it can lead to reduced performance and potential safety risks. It is best to have the issue diagnosed and repaired by a qualified mechanic.

5. How can I diagnose the OBDII code P2122 in my 2012 Nissan Altima Sedan?

Diagnosing the P2122 code involves using a scan tool to retrieve the fault code, inspecting the accelerator pedal position sensor and its circuit for any visible damage, and testing the sensor's functionality using a multimeter.

6. What are some repair tips for fixing the OBDII code P2122 in a 2012 Nissan Altima Sedan?

Repairing the P2122 code may involve replacing the accelerator pedal position sensor, repairing damaged wiring or connectors, and clearing the fault code with a scan tool. It is recommended to follow the manufacturer's diagnostic and repair procedures.

7. Can I reset the OBDII code P2122 in my 2012 Nissan Altima Sedan by disconnecting the battery?

While disconnecting the battery may reset the code temporarily, it is not a recommended long-term solution. It is best to address the underlying issue causing the P2122 code to prevent it from reoccurring.

8. How much does it cost to repair the OBDII code P2122 in a 2012 Nissan Altima Sedan?

The cost of repairing the P2122 code can vary depending on the cause of the issue, the labor rates in your area, and whether you choose to go to a dealership or an independent mechanic. It is advisable to get quotes from different shops.

9. Is the OBDII code P2122 covered under warranty for a 2012 Nissan Altima Sedan?

If your vehicle is still under warranty, the repair for the P2122 code may be covered depending on the terms of the warranty. It is recommended to check with your dealership or refer to your warranty documentation for more information.

10. How can I prevent the OBDII code P2122 from appearing in my 2012 Nissan Altima Sedan in the future?

To prevent the recurrence of the P2122 code, it is essential to perform regular maintenance on your vehicle, including checking the condition of the accelerator pedal position sensor and its circuit, as well as ensuring proper electrical connections.