Engine-Codes.com
Engine-Codes – Infiniti – P0229 2003 Infiniti G35

P0229 2003 Infiniti G35 Code - Accelerator Pedal Position Sensor 1 Circuit High Input

Quick Answer

The P0229 code for a 2003 Infiniti G35 indicates an issue with the Accelerator Pedal Position Sensor 1 Circuit registering a high input. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning engine control module (ECM). 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
P0229 2003 Infiniti G35 indicates Accelerator Pedal Position Sensor 1 Circuit High Input.
Common causes
Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Malfunctioning engine control module (ECM).
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 13, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
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

Code P0229 2003 Infiniti G35 Description

The P0229 code for a 2003 Infiniti G35 indicates an issue with the Accelerator Pedal Position Sensor 1 Circuit registering a high input. The accelerator pedal position sensor is a vital component of the vehicle's electronic throttle control system. It is responsible for monitoring the position of the accelerator pedal and sending this information to the engine control module (ECM). The ECM uses this data to determine the appropriate fuel delivery and ignition timing for optimal engine performance.

OBDII Code P0229 2003 Infiniti G35 - Accelerator Pedal Position Sensor 1 Circuit High Input
P0229 2003 Infiniti G35 Code - Accelerator Pedal Position Sensor 1 Circuit High Input

Common Causes of P0229 2003 Infiniti G35

  1. Faulty accelerator pedal position sensor.
  2. Damaged wiring or connectors in the sensor circuit.
  3. Malfunctioning engine control module (ECM).
  4. Software glitch in the vehicle's computer system.
  5. Corrosion or contamination in the sensor circuit.

Symptoms of P0229 2003 Infiniti G35

  1. Engine hesitation or lack of response when pressing the accelerator pedal.
  2. Rough idling or unstable engine RPM.
  3. Reduced fuel efficiency.
  4. Illumination of the Check Engine Light on the dashboard.
  5. Vehicle going into limp mode, limiting speed and power output.

How to Fix P0229 2003 Infiniti G35

  1. Diagnose the issue using a scan tool to retrieve the trouble code and perform a thorough inspection of the accelerator pedal position sensor and its circuit.
  2. Test the sensor's voltage output and resistance to determine if it is functioning within specifications.
  3. Check the wiring and connectors for any signs of damage, corrosion, or poor connections. Repair or replace as needed.
  4. If the sensor is found to be faulty, replace it with a new OEM or high-quality aftermarket sensor.
  5. Clear the trouble code from the ECM's memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix P0229 2003 Infiniti G35

The typical repair costs for addressing a P0229 code on a 2003 Infiniti G35 can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the price of a new accelerator pedal position sensor, any necessary wiring repairs or replacements, and the labor cost for diagnosis and repair. It's important to note that the actual cost may vary based on the shop's hourly labor rates, the location of the repair facility, and any additional diagnostic time required to pinpoint the exact cause of the high input signal. It's recommended to consult with a trusted mechanic or repair shop to obtain a more accurate cost estimate for this repair.

When is the Code Detected?

An Intermittent voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

Need more information about the P0229 2003 Infiniti G35 code?

Need more information on how to fix the P0229 2003 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0229 2003 Infiniti G35 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 P0229 2003 Infiniti G35 Code

1. What does the OBDII code P0229 mean on a 2003 Infiniti G35?

P0229 indicates an issue with the Accelerator Pedal Position Sensor 1 Circuit, specifically a high input signal being detected by the Engine Control Module (ECM).

2. What are the common symptoms of code P0229 in a 2003 Infiniti G35?

Symptoms may include poor throttle response, reduced engine power, hesitation during acceleration, and the Check Engine Light illuminating.

3. What causes the P0229 code in a 2003 Infiniti G35?

Possible causes include a faulty accelerator pedal position sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning ECM.

4. Can I drive my 2003 Infiniti G35 with a P0229 code?

While the car may still run, driving with this code can lead to unsafe throttle behavior and should be diagnosed and repaired promptly.

5. How do I fix the P0229 code on my 2003 Infiniti G35?

Repairs may involve replacing the accelerator pedal position sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.

6. How do I know if the accelerator pedal position sensor is faulty?

A faulty sensor may cause erratic throttle behavior, hesitation, or a failure to accelerate properly. Testing the sensor’s voltage and resistance can help confirm the issue.

7. What tools do I need to diagnose and fix the P0229 code?

You’ll need an OBDII scanner, multimeter, and possibly basic hand tools to inspect and test the wiring and connectors associated with the sensor.

8. How much does it cost to repair a P0229 code on a 2003 Infiniti G35?

Repair costs vary but typically range from $100 to $300 for parts and labor, depending on whether the sensor or wiring needs replacement.

9. Can a dirty throttle body cause a P0229 code?

While not a direct cause, a dirty throttle body can contribute to poor throttle response, which may be mistaken for pedal sensor issues. Cleaning it can help rule out other problems.

10. Does the P0229 code require ECM replacement?

ECM replacement is rare and usually only necessary if all other components, such as the sensor and wiring, have been ruled out and the ECM is confirmed to be defective.

Discuss the causes and fixes for P0229 2003 Infiniti G35 OBDII Code

Submit a New Comment

Code P0229 2003 Infiniti G35 comments

No comments found for this page.