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P1227 2003 Infiniti G35 Code - Accelerator Pedal Position Sensor 2 Circuit Low Input

Quick Answer

The P1227 code on a 2003 Infiniti G35 indicates a problem with the Accelerator Pedal Position Sensor 2 Circuit, specifically a low input signal. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit. 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
P1227 2003 Infiniti G35 indicates Accelerator Pedal Position Sensor 2 Circuit Low Input.
Common causes
Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections in the sensor circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P1227 2003 Infiniti G35 Description

The P1227 code on a 2003 Infiniti G35 indicates a problem with the Accelerator Pedal Position Sensor 2 Circuit, specifically a low input signal. The accelerator pedal position sensor is a vital component of the vehicle's electronic throttle control system. It is responsible for sending information to the engine control module (ECM) about the position of the accelerator pedal, allowing the ECM to adjust the throttle accordingly.

OBDII Code P1227 2003 Infiniti G35 - Accelerator Pedal Position Sensor 2 Circuit Low Input
P1227 2003 Infiniti G35 Code - Accelerator Pedal Position Sensor 2 Circuit Low Input

Common Causes of P1227 2003 Infiniti G35

  1. Faulty accelerator pedal position sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Corrosion or poor connections in the sensor circuit.
  4. Issues with the engine control module (ECM).
  5. Environmental factors such as moisture or debris affecting sensor operation.

Symptoms of P1227 2003 Infiniti G35

  1. Hesitation or lack of response when pressing the accelerator pedal.
  2. Rough idling or uneven engine performance.
  3. Reduced power or acceleration.
  4. Engine stalling or difficulty starting.
  5. Illumination of the Check Engine Light.

How to Fix P1227 2003 Infiniti G35

  1. Begin by diagnosing the specific cause of the low input signal, using a scan tool to retrieve freeze frame data and pinpoint the issue.
  2. Inspect the accelerator pedal position sensor, wiring, and connectors for any visible damage or corrosion. Replace any faulty components as needed.
  3. Test the sensor circuit for proper voltage and continuity, ensuring that all connections are secure.
  4. Clear the diagnostic trouble codes from the ECM and test drive the vehicle to verify that the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to identify any underlying issues with the ECM or other related components.

Cost to Fix P1227 2003 Infiniti G35

The typical repair costs for addressing a P1227 code on a 2003 Infiniti G35 can vary depending on the specific cause of the issue. In general, replacing a faulty accelerator pedal position sensor can cost between $100 and $200, while addressing wiring or connector issues may range from $50 to $150. Labor costs at auto repair shops typically range from $80 to $150 per hour, with additional charges for diagnostic time. It's advisable to consult with a professional mechanic to get an accurate estimate based on the specific circumstances of your vehicle.

When is the Code Detected?

An excessively low voltage from the Accelerator Pedal Position (APP) sensor 2 is sent to Engine Control Module (ECM).

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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 P1227 2003 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1227 in a 2003 Infiniti G35?

- Common symptoms include reduced engine power, hesitation or stalling during acceleration, and the vehicle going into limp mode.

2. What does the OBDII code P1227 for a 2003 Infiniti G35 indicate?

- The code P1227 indicates a low input signal from the Accelerator Pedal Position Sensor 2 circuit in the vehicle.

3. What are the possible causes of the P1227 code in a 2003 Infiniti G35?

- Potential causes include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or a problem with the engine control module.

4. How can I diagnose the Accelerator Pedal Position Sensor 2 circuit in my 2003 Infiniti G35?

- Diagnosing the sensor circuit involves checking the sensor's wiring and connectors for damage, testing the sensor's voltage output, and verifying proper signal communication with the engine control module.

5. Can I drive my 2003 Infiniti G35 with the P1227 code present?

- It is not recommended to drive the vehicle with the P1227 code present, as it may lead to unsafe driving conditions and potential further damage to the vehicle.

6. Is it possible to repair the Accelerator Pedal Position Sensor 2 circuit issue in a 2003 Infiniti G35 myself?

- While some DIY enthusiasts may attempt to diagnose and repair the issue themselves, it is recommended to seek professional help to ensure the problem is properly addressed and resolved.

7. How much does it cost to fix the Accelerator Pedal Position Sensor 2 circuit problem in a 2003 Infiniti G35?

- The cost of repairs can vary depending on the exact cause of the issue, but it typically ranges from $200 to $500, including parts and labor.

8. Will resetting the OBDII code P1227 in my 2003 Infiniti G35 make the issue go away?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not fixed, it is likely to reappear after some driving cycles.

9. Are there any preventive measures to avoid encountering the P1227 code in a 2003 Infiniti G35?

- Regular maintenance checks, including inspecting the accelerator pedal position sensor and its wiring, can help prevent issues leading to the P1227 code.

10. How long does it typically take to repair the Accelerator Pedal Position Sensor 2 circuit issue in a 2003 Infiniti G35?

- The repair time can vary depending on the exact cause of the problem and the availability of parts, but it usually takes a few hours to a day for a professional mechanic to address the issue.

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