AutoCodes – Infiniti – P1228 Infiniti

P1228 Infiniti Code - Accelerator Pedal Position Sensor 2 Circuit High Input

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
P1228 Infiniti indicates Accelerator Pedal Position Sensor 2 Circuit High Input.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,262
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 20, 2019
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P1228 Infiniti 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 P1228 Infiniti - Accelerator Pedal Position Sensor 2 Circuit High Input - AutoCodes.com
P1228 Infiniti Code - Accelerator Pedal Position Sensor 2 Circuit High Input

What are the Possible Causes of the DTC P1228 Infiniti?

  • 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

How to Fix the DTC P1228 Infiniti?

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 P1228 Infiniti 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 P1228 Infiniti code?

Need more information on how to fix the P1228 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1228 Infiniti 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 P1228 Infiniti Code

1. What are the common symptoms of OBDII code P1228 in an Infiniti related to the Accelerator Pedal Position Sensor 2 Circuit High Input?

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

2. What are the possible causes of OBDII code P1228 in an Infiniti?

- Common causes include a faulty accelerator pedal position sensor, damaged wiring or connectors, or issues with the engine control module.

3. How can I diagnose the Accelerator Pedal Position Sensor 2 Circuit High Input issue in my Infiniti?

- Diagnosis involves using an OBDII scanner to retrieve the trouble code, inspecting the sensor and its wiring for any visible damage, and testing the sensor's resistance.

4. Can driving with OBDII code P1228 in an Infiniti cause further damage?

- Continuing to drive with this code can potentially cause damage to other engine components due to the vehicle operating in a reduced power state.

5. Is it safe to continue driving my Infiniti with the P1228 code present?

- It's not recommended to drive the vehicle with this code as it can lead to unsafe driving conditions and potential damage to the engine.

6. How can I repair OBDII code P1228 related to the Accelerator Pedal Position Sensor 2 Circuit High Input in my Infiniti?

- Repair typically involves replacing the faulty accelerator pedal position sensor, repairing any damaged wiring, and clearing the trouble code with an OBDII scanner.

7. Can I reset the P1228 code in my Infiniti without fixing the issue?

- While you can clear the code temporarily, the underlying issue causing the code will persist until properly repaired.

8. Are there any specific Infiniti models prone to experiencing the Accelerator Pedal Position Sensor 2 Circuit High Input issue?

- This issue can occur in various Infiniti models that are equipped with an accelerator pedal position sensor, such as G35, Q50, and FX35.

9. How much does it typically cost to repair OBDII code P1228 in an Infiniti at a dealership or mechanic?

- The cost of repair can vary depending on the model, the extent of the damage, and the rates of the service provider, but it can range from $200 to $500 on average.

10. Can I prevent OBDII code P1228 related to the Accelerator Pedal Position Sensor 2 Circuit High Input from occurring in my Infiniti?

- Regular maintenance, including checking the sensors and wiring, can help prevent this issue. Additionally, addressing any acceleration or power issues promptly can prevent further damage.

Discuss the causes and fixes for P1228 Infiniti OBDII Code

Code P1228 Infiniti 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