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P1772 2004 Infiniti G35 Code - Low Coast Brake Solenoid Valve

Quick Answer

The P1772 code for a 2004 Infiniti G35 refers to a problem with the Low Coast Brake Solenoid Valve. Common causes include Faulty Low Coast Brake Solenoid Valve, Damaged wiring or connectors in the solenoid valve circuit, Low transmission fluid levels. 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
P1772 2004 Infiniti G35 indicates Low Coast Brake Solenoid Valve.
Common causes
Common causes include Faulty Low Coast Brake Solenoid Valve, Damaged wiring or connectors in the solenoid valve circuit, Low transmission fluid levels.
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 P1772 2004 Infiniti G35 Description

The P1772 code for a 2004 Infiniti G35 refers to a problem with the Low Coast Brake Solenoid Valve. This valve is a crucial component of the transmission system, responsible for controlling the application of the low coast brake. The low coast brake is used to slow down the vehicle when coasting, helping to maintain control and stability. When this solenoid valve malfunctions, it can lead to issues with the transmission's ability to engage the low coast brake effectively.

OBDII Code P1772 2004 Infiniti G35 - Low Coast Brake Solenoid Valve
P1772 2004 Infiniti G35 Code - Low Coast Brake Solenoid Valve

Common Causes of P1772 2004 Infiniti G35

  1. Faulty Low Coast Brake Solenoid Valve
  2. Damaged wiring or connectors in the solenoid valve circuit
  3. Low transmission fluid levels
  4. Electrical issues in the transmission control module
  5. Mechanical problems within the transmission system

Symptoms of P1772 2004 Infiniti G35

  1. Erratic shifting behavior
  2. Difficulty engaging gears
  3. Transmission slipping
  4. Illumination of the Check Engine Light
  5. Reduced fuel efficiency

How to Fix P1772 2004 Infiniti G35

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to retrieve the fault codes and pinpoint the problem.
  2. Inspect the Low Coast Brake Solenoid Valve and its wiring for any signs of damage or wear. Replace the solenoid valve if necessary.
  3. Check the transmission fluid level and quality. Top up or replace the fluid if it is low or contaminated.
  4. Test the transmission control module for any electrical faults and repair or replace as needed.
  5. Clear the fault codes from the ECM and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P1772 2004 Infiniti G35

The cost of repairing a Low Coast Brake Solenoid Valve issue can vary depending on the specific cause of the problem and the extent of the repairs needed. On average, the cost of replacing a solenoid valve and addressing related issues can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary significantly, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle.

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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 P1772 2004 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1772 in a 2004 Infiniti G35 related to the Low Coast Brake Solenoid Valve?

Symptoms may include harsh shifting, transmission slipping, and difficulty changing gears.

2. What can cause the OBDII code P1772 in a 2004 Infiniti G35 indicating an issue with the Low Coast Brake Solenoid Valve?

The code is typically triggered by a faulty low coast brake solenoid valve, which can be caused by electrical issues, a malfunctioning solenoid, or a damaged wiring harness.

3. How serious is the OBDII code P1772 in a 2004 Infiniti G35 related to the Low Coast Brake Solenoid Valve?

Ignoring this code can lead to transmission problems, poor performance, and potential safety hazards while driving.

4. Can I continue driving my 2004 Infiniti G35 with OBDII code P1772 until I can have it repaired?

While you may be able to drive the vehicle short distances, it is recommended to address the issue promptly to prevent further damage to the transmission.

5. How can I diagnose the Low Coast Brake Solenoid Valve issue causing OBDII code P1772 in my 2004 Infiniti G35?

A professional diagnostic scan tool can help pinpoint the exact cause of the problem by reading the error codes and analyzing the transmission system.

6. Is it possible to repair the Low Coast Brake Solenoid Valve issue causing OBDII code P1772 in a 2004 Infiniti G35 myself?

Repairing or replacing the solenoid valve may require specialized tools and knowledge, so it is advisable to consult a qualified mechanic for this repair.

7. How much does it typically cost to repair OBDII code P1772 in a 2004 Infiniti G35 related to the Low Coast Brake Solenoid Valve?

The cost of repair can vary depending on the extent of the damage, but it may range from a couple of hundred dollars to over a thousand dollars including parts and labor.

8. Can a faulty Low Coast Brake Solenoid Valve causing OBDII code P1772 in a 2004 Infiniti G35 be cleaned or repaired, or does it need to be replaced?

In some cases, the solenoid valve may be repairable by cleaning or adjusting, but often it is more effective to replace the faulty component to ensure proper functioning.

9. How long does it typically take to repair OBDII code P1772 in a 2004 Infiniti G35 related to the Low Coast Brake Solenoid Valve?

The repair time can vary based on the complexity of the job and availability of parts, but it may take a few hours to a full day to complete the repair.

10. What steps can I take to prevent OBDII code P1772 from occurring again in my 2004 Infiniti G35 after repairing the Low Coast Brake Solenoid Valve issue?

Regular maintenance, such as checking the transmission fluid levels and ensuring proper electrical connections, can help prevent the recurrence of this code.

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