AutoCodes – Infiniti – P1229 2003 Infiniti G35

P1229 2003 Infiniti G35 Code - Sensor Power Supply Circuit Shorted

Quick Answer

The Engine Control Module (ECM) detects the voltage of the power source for the sensor is excessively low or high. Common causes include Check harness body ground, Faulty Accelerator Pedal Position (APP) sensor, Faulty Power Steering Pressure (PSP) sensor. 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
P1229 2003 Infiniti G35 indicates Sensor Power Supply Circuit Shorted.
Common causes
Common causes include Check harness body ground, Faulty Accelerator Pedal Position (APP) sensor, Faulty Power Steering Pressure (PSP) sensor.
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 3,019
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 05, 2022
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code P1229 2003 Infiniti G35 Description

The Engine Control Module (ECM) detects the voltage of the power source for the sensor is excessively low or high. The ECM stops the electric throttle control actuator control, and the throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the voltage of the power source for the sensor is excessively low or high.
OBDII Code P1229 2003 Infiniti G35 - Sensor Power Supply Circuit Shorted - AutoCodes.com
P1229 2003 Infiniti G35 Code - Sensor Power Supply Circuit Shorted

What are the Possible Causes of the DTC P1229 2003 Infiniti G35?

  • Check harness body ground
  • Faulty Accelerator Pedal Position (APP) sensor
  • Faulty Power Steering Pressure (PSP) sensor
  • Faulty Refrigerant Pressure sensor
  • Faulty EVAP Control System Pressure sensor

How to Fix the DTC P1229 2003 Infiniti G35?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1229 2003 Infiniti G35 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 P1229 2003 Infiniti G35 code?

Need more information on how to fix the P1229 2003 Infiniti G35 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1229 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 P1229 2003 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1229 in a 2003 Infiniti G35?

The common symptoms of OBDII code P1229 in a 2003 Infiniti G35 include rough idling, engine stalling, and a noticeable decrease in engine performance.

2. What does the OBDII code P1229 "Sensor Power Supply Circuit Shorted" mean for a 2003 Infiniti G35?

The OBDII code P1229 in a 2003 Infiniti G35 indicates a malfunction in the sensor power supply circuit, specifically a short circuit.

3. What are the potential causes of OBDII code P1229 in a 2003 Infiniti G35?

Potential causes of OBDII code P1229 in a 2003 Infiniti G35 include a faulty sensor, damaged wiring or connectors in the power supply circuit, or issues with the Engine Control Module (ECM).

4. How can I diagnose the OBDII code P1229 in my 2003 Infiniti G35?

Diagnosing OBDII code P1229 in a 2003 Infiniti G35 typically involves checking the wiring and connectors related to the sensor power supply circuit, testing the sensor itself, and using a diagnostic scanner to read live data from the ECM.

5. Can I continue driving my 2003 Infiniti G35 with OBDII code P1229?

It is not recommended to continue driving your 2003 Infiniti G35 with OBDII code P1229, as it can lead to further engine damage or safety issues. It is best to address the issue promptly.

6. How can I repair OBDII code P1229 in my 2003 Infiniti G35?

Repairing OBDII code P1229 in a 2003 Infiniti G35 may involve replacing the faulty sensor, repairing or replacing damaged wiring or connectors, or reprogramming the ECM. It is recommended to consult a professional mechanic for proper diagnosis and repair.

7. Is it safe to reset the OBDII code P1229 in my 2003 Infiniti G35 using an OBDII scanner?

Resetting OBDII code P1229 using an OBDII scanner may temporarily clear the error code, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and repair the root cause of the problem.

8. How much does it typically cost to fix OBDII code P1229 in a 2003 Infiniti G35?

The cost to fix OBDII code P1229 in a 2003 Infiniti G35 can vary depending on the cause of the issue, the required parts, and labor costs. It is advisable to get a few quotes from reputable mechanics to compare prices.

9. Can a DIY enthusiast fix OBDII code P1229 in a 2003 Infiniti G35?

While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing OBDII code P1229 in a 2003 Infiniti G35 may require specialized tools and expertise. It is recommended to seek professional help for proper diagnosis and repair.

10. How can I prevent OBDII code P1229 from occurring in my 2003 Infiniti G35 in the future?

To prevent OBDII code P1229 from occurring in your 2003 Infiniti G35, it is important to perform regular maintenance, such as checking the sensor and wiring connections, keeping the engine well-maintained, and addressing any issues promptly to avoid further damage.

Discuss the causes and fixes for P1229 2003 Infiniti G35 OBDII Code

Code P1229 2003 Infiniti G35 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