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P1769 Infiniti Code - High and Low Reverse Clutch Solenoid Valve Function

Quick Answer

The P1769 diagnostic trouble code (DTC) for Infiniti vehicles relates to the High and Low Reverse Clutch Solenoid Valve Function. Common causes include Electrical issues such as a faulty solenoid valve, Mechanical failure of the solenoid valve, Blockages in the hydraulic system. 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
P1769 Infiniti indicates High and Low Reverse Clutch Solenoid Valve Function.
Common causes
Common causes include Electrical issues such as a faulty solenoid valve, Mechanical failure of the solenoid valve, Blockages in the hydraulic system.
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 07, 2024
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Code P1769 Infiniti Description

The P1769 diagnostic trouble code (DTC) for Infiniti vehicles relates to the High and Low Reverse Clutch Solenoid Valve Function. This code indicates that there is an issue with the operation of the solenoid valve that controls the engagement of the high and low reverse clutch in the transmission. The solenoid valve is an essential component that regulates the flow of hydraulic fluid to the clutch, allowing for smooth and precise gear changes.

OBDII Code P1769 Infiniti - High and Low Reverse Clutch Solenoid Valve Function
P1769 Infiniti Code - High and Low Reverse Clutch Solenoid Valve Function

Common Causes of P1769 Infiniti

  1. Electrical issues such as a faulty solenoid valve
  2. Mechanical failure of the solenoid valve
  3. Blockages in the hydraulic system
  4. Wiring harness or connector problems
  5. Low transmission fluid levels or contaminated fluid

Symptoms of P1769 Infiniti

  1. Difficulty shifting into reverse gear
  2. Harsh or delayed gear changes
  3. Slipping transmission when engaging reverse
  4. Erratic shifting patterns
  5. Illumination of the Check Engine Light

How to Fix P1769 Infiniti

  1. Begin by diagnosing the specific cause of the P1769 code using a professional diagnostic scanner to pinpoint the issue with the High and Low Reverse Clutch Solenoid Valve.
  2. Inspect the electrical connections, wiring harness, and solenoid valve for any signs of damage or malfunction.
  3. Check the transmission fluid level and condition, topping up or replacing as necessary.
  4. Clear the DTC and reset the transmission control module to see if the code reappears after repairs.
  5. If the solenoid valve is found to be faulty, replace it with a new one and ensure proper installation to restore proper transmission function.

Cost to Fix P1769 Infiniti

The typical repair costs for addressing the P1769 code in an Infiniti vehicle can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary depending on factors such as location, vehicle make and model, and engine type. It is advisable to check local rates for a more precise estimate. Most auto repair shops charge between $80 and $150 per hour, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops.

What does this mean?

Tech Notes for P1769 Infiniti

There is a Factory Service Bulletin for all 2003–2010 Infiniti vehicles with 5-Speed A/T RE5R05A Transmission:
2003–2010 Infiniti RE5R05A Transmission Factory Service Bulletin OBDII Code P1769

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Information for Specific Infiniti Models

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 P1769 Infiniti Code

1. What does the OBDII code P1769 mean for Infiniti vehicles?

P1769 indicates a malfunction in the High and Low Reverse Clutch Solenoid Valve, which is responsible for controlling hydraulic pressure in the transmission for reverse and low gear operation.

2. What are the common symptoms of code P1769 in an Infiniti?

Symptoms may include harsh or delayed shifting, issues with reverse gear engagement, transmission stuck in limp mode, and the illumination of the check engine light.

3. What causes the P1769 code to appear in an Infiniti?

Common causes include a faulty high and low reverse clutch solenoid valve, damaged wiring or connectors, low or dirty transmission fluid, or internal transmission issues.

4. Can I drive my Infiniti with a P1769 code?

It is not recommended to drive for extended periods with this code, as it may lead to further transmission damage and worsening drivability issues.

5. How do I diagnose a P1769 code on my Infiniti?

Diagnosis involves checking the transmission fluid condition, inspecting the wiring and connections to the solenoid, and performing a solenoid resistance test or scanning for other related codes.

6. How do I fix a P1769 code in my Infiniti?

Repairs may include replacing the faulty solenoid, repairing or replacing damaged wiring, flushing and refilling the transmission fluid, or addressing any internal transmission issues.

7. How much does it cost to fix a P1769 code on an Infiniti?

The cost varies depending on the repair needed, but solenoid replacement can cost $200–$500, while more extensive transmission repairs may cost significantly more.

8. Can low transmission fluid cause the P1769 code on an Infiniti?

Yes, low or dirty transmission fluid can cause insufficient hydraulic pressure, leading to solenoid malfunction and triggering the P1769 code.

9. How can I prevent the P1769 code from occurring in my Infiniti?

Regularly maintain your vehicle by checking and replacing transmission fluid as needed, inspecting wiring for damage, and addressing transmission issues promptly.

10. Will resetting the code fix the P1769 issue on my Infiniti?

Resetting the code without addressing the underlying problem will only temporarily clear the code, and the issue will likely return. Proper diagnosis and repair are necessary.

Discuss the causes and fixes for P1769 Infiniti OBDII Code

Submit a New Comment

  • HI i have notice that my Mitsubishi lancer ex year 2015 automatic gear is having some issue..
    No 1 my problem is while putting on (D) driving after maybe 30-45 mins the car acceleration drop down
    the only way i can go forward is that i need to remove my foot on and press slowly but at several time its drop again also i have notice while car is on and that its on (p) a little noise came across the console

    my technician has connect his diagnostic tools ..the throttle is working .the MAF sensor also is good but has only has detect only a faulty message which says "P1769 STOP LAMP SWITCH ON " we have done the test while driving the car also has stop the car to see if the brake pedal is working and result is yes all stop light is working while pressing the brake pedal

    some of my friends is telling me to change the swtich brake pedal and it will be ok
    grateful if i can get some advise from you guys

    josh
    f

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