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P1229 2004 Infiniti G35 Code - Sensor Power Supply Circuit Shorted

Quick Answer

The P1229 code on a 2004 Infiniti G35 indicates a sensor power supply circuit that is shorted. Common causes include Damaged wiring or connectors in the sensor power supply circuit, Faulty sensor, Malfunctioning engine control module. 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 2004 Infiniti G35 indicates Sensor Power Supply Circuit Shorted.
Common causes
Common causes include Damaged wiring or connectors in the sensor power supply circuit, Faulty sensor, Malfunctioning engine control module.
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 15, 2024
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Code P1229 2004 Infiniti G35 Description

The P1229 code on a 2004 Infiniti G35 indicates a sensor power supply circuit that is shorted. This means that there is an issue with the power supply to one of the sensors in the vehicle, which can lead to various performance issues. The sensor power supply circuit is responsible for providing power to sensors that are crucial for the proper functioning of the engine and other systems in the vehicle. When this circuit is shorted, it can disrupt the communication between the sensors and the engine control module, leading to a range of problems.

OBDII Code P1229 2004 Infiniti G35 - Sensor Power Supply Circuit Shorted
P1229 2004 Infiniti G35 Code - Sensor Power Supply Circuit Shorted

Common Causes of P1229 2004 Infiniti G35

  1. Damaged wiring or connectors in the sensor power supply circuit
  2. Faulty sensor
  3. Malfunctioning engine control module
  4. Short circuit in the system
  5. Corrosion or moisture in the sensor connections

Symptoms of P1229 2004 Infiniti G35

  1. Engine misfires or runs rough
  2. Reduced fuel efficiency
  3. Check Engine Light illuminated
  4. Engine stalling or hesitation
  5. Difficulty starting the vehicle

How to Fix P1229 2004 Infiniti G35

  1. Begin by conducting a thorough inspection of the sensor power supply circuit, checking for any damaged wiring, connectors, or corrosion.
  2. Test the sensors connected to the circuit to determine if any of them are faulty and need to be replaced.
  3. Use a multimeter to check for continuity and resistance in the circuit to identify any short circuits.
  4. Inspect the engine control module for any signs of malfunction and replace if necessary.
  5. Clear the diagnostic trouble codes, reset the engine control module, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1229 2004 Infiniti G35

The typical repair costs for addressing a sensor power supply circuit shorted code like P1229 on a 2004 Infiniti G35 can range from $200 to $500, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to inquire about local rates to get a more accurate estimate for this repair.

What does this mean?

Tech Notes for P1229 2004 Infiniti G35

Start by inspecting the connections of the harness to the body grounds.

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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 P1229 2004 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1229 in a 2004 Infiniti G35?

The common symptoms of OBDII code P1229 in a 2004 Infiniti G35 include rough idling, engine stalling, reduced engine power, and the illumination of the Check Engine Light.

2. What does the OBDII code P1229 "Sensor Power Supply Circuit Shorted" indicate in a 2004 Infiniti G35?

The OBDII code P1229 in a 2004 Infiniti G35 indicates a malfunction in the sensor power supply circuit, specifically a short circuit.

3. What are the possible causes of OBDII code P1229 in a 2004 Infiniti G35?

Possible causes of OBDII code P1229 in a 2004 Infiniti G35 include a faulty sensor, damaged wiring or connectors, a short circuit in the sensor power supply circuit, or a malfunctioning Engine Control Module (ECM).

4. How can I diagnose the OBDII code P1229 in my 2004 Infiniti G35?

Diagnosing OBDII code P1229 in a 2004 Infiniti G35 involves using a scan tool to retrieve the trouble code, inspecting the sensor wiring and connectors for damage, and testing the sensor and power supply circuit for continuity and proper voltage.

5. Can I continue driving my 2004 Infiniti G35 with OBDII code P1229?

It is not recommended to continue driving your 2004 Infiniti G35 with OBDII code P1229, as it can lead to further engine damage and potential safety hazards. It is best to address the issue promptly.

6. How can I repair OBDII code P1229 in my 2004 Infiniti G35?

Repairing OBDII code P1229 in a 2004 Infiniti G35 may involve replacing the faulty sensor, repairing damaged wiring or connectors, and resetting the trouble code using a scan tool after the repairs are completed.

7. Is it possible to reset the OBDII code P1229 in my 2004 Infiniti G35 without fixing the underlying issue?

Resetting the OBDII code P1229 without fixing the underlying issue will only temporarily turn off the Check Engine Light. The code will likely reappear once the issue persists, so it is important to address the root cause of the problem.

8. How much does it typically cost to repair OBDII code P1229 in a 2004 Infiniti G35?

The cost of repairing OBDII code P1229 in a 2004 Infiniti G35 can vary depending on the specific cause of the issue, the parts needed for repair, and labor costs. It is recommended to consult a professional mechanic for an accurate estimate.

9. Can a DIY enthusiast with basic automotive skills repair OBDII code P1229 in a 2004 Infiniti G35?

While some repairs for OBDII code P1229 may be possible for a DIY enthusiast with basic automotive skills, diagnosing and fixing electrical issues like a sensor power supply circuit short can be challenging. It is advisable to seek professional help if unsure.

10. How long does it take to repair OBDII code P1229 in a 2004 Infiniti G35?

The time required to repair OBDII code P1229 in a 2004 Infiniti G35 can vary based on the extent of the issue and the expertise of the mechanic. It may range from a few hours to a day, depending on the complexity of the repair needed.

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