AutoCodes – Nissan – P2122 2003 Nissan Altima Sedan

P2122 2003 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 2003 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 4,815
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P2122 2003 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 2003 Nissan Altima Sedan - Accelerator Pedal Position Sensor Circuit Range/Performance - AutoCodes.com
P2122 2003 Nissan Altima Sedan Code - Accelerator Pedal Position Sensor Circuit Range/Performance

What are the Possible Causes of the DTC P2122 2003 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 2003 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 2003 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 2003 Nissan Altima Sedan code?

Need more information on how to fix the P2122 2003 Nissan Altima Sedan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2122 2003 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area

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 2003 Nissan Altima Sedan Code

1. What are the common symptoms of OBDII code P2122 on a 2003 Nissan Altima Sedan?

- Common symptoms include issues with acceleration, reduced engine power, hesitation, and the vehicle going into "limp mode."

2. What causes the OBDII code P2122 on a 2003 Nissan Altima Sedan?

- The code P2122 usually indicates a problem with the accelerator pedal position sensor or its circuit, such as a faulty sensor, wiring issues, or a poor connection.

3. How can I diagnose the OBDII code P2122 on my 2003 Nissan Altima Sedan?

- Diagnosing the code involves checking the accelerator pedal sensor for proper operation, inspecting the wiring for any damage or loose connections, and using a scan tool to monitor sensor readings.

4. Can a dirty throttle body cause the OBDII code P2122 on a 2003 Nissan Altima Sedan?

- While a dirty throttle body can affect engine performance, it is unlikely to directly trigger the P2122 code. Focus on checking the accelerator pedal position sensor and related components.

5. How can I repair the OBDII code P2122 on a 2003 Nissan Altima Sedan?

- Repair options may include replacing the accelerator pedal position sensor, repairing damaged wiring, ensuring proper sensor alignment, or addressing any connection issues.

6. Can I drive my 2003 Nissan Altima Sedan with the OBDII code P2122?

- It is not recommended to drive the vehicle with the P2122 code present, as it can lead to unsafe driving conditions and potential further damage to the vehicle.

7. Will disconnecting the battery reset the OBDII code P2122 on a 2003 Nissan Altima Sedan?

- Disconnecting the battery may clear the code temporarily, but it is essential to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

8. How much does it typically cost to repair the OBDII code P2122 on a 2003 Nissan Altima Sedan?

- The cost of repair can vary depending on the exact cause of the P2122 code, but it may range from $100 to $300 or more, including parts and labor.

9. Can a DIY enthusiast fix the OBDII code P2122 on a 2003 Nissan Altima Sedan?

- Depending on your skill level and access to tools, DIY enthusiasts may be able to diagnose and repair the P2122 code by following service manuals and guides specific to the Nissan Altima Sedan.

10. Is it necessary to have the OBDII code P2122 on a 2003 Nissan Altima Sedan fixed immediately?

- It is essential to address the P2122 code promptly to prevent potential safety hazards, further damage to the vehicle, and to ensure optimal performance and fuel efficiency.

Discuss the causes and fixes for P2122 2003 Nissan Altima Sedan OBDII Code

Code P2122 2003 Nissan Altima Sedan comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play