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U1320 Infiniti Code - Automatic Back Door Control Module Reprogramming Error

Quick Answer

The U1320 code indicates a malfunction related to the Automatic Back Door Control Module in Infiniti vehicles. Common causes include Corrupted software in the Automatic Back Door Control Module, Electrical short circuits or wiring issues affecting the control module, Faulty sensors or switches that provide feedback to the 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
U1320 Infiniti indicates Automatic Back Door Control Module Reprogramming Error.
Common causes
Common causes include Corrupted software in the Automatic Back Door Control Module, Electrical short circuits or wiring issues affecting the control module, Faulty sensors or switches that provide feedback to the 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 Oct 17, 2024
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Code U1320 Infiniti Description

The U1320 code indicates a malfunction related to the Automatic Back Door Control Module in Infiniti vehicles. This code typically arises when there is an issue with the reprogramming of the control module responsible for the automatic operation of the back door (hatch or trunk). The back door control module is integral to the functionality of the automatic liftgate, allowing it to open and close electronically, often triggered by a button on the key fob or inside the vehicle.

OBDII Code U1320 Infiniti - Automatic Back Door Control Module Reprogramming Error
U1320 Infiniti Code - Automatic Back Door Control Module Reprogramming Error

Common Causes of U1320 Infiniti

  1. Corrupted software in the Automatic Back Door Control Module.
  2. Electrical short circuits or wiring issues affecting the control module.
  3. Faulty sensors or switches that provide feedback to the control module.
  4. Environmental damage, such as moisture intrusion into the control module.
  5. Previous improper repairs or modifications to the vehicle's electrical system.

Symptoms of U1320 Infiniti

  1. The automatic back door does not respond to the key fob or interior switch.
  2. Erratic operation of the back door, such as opening or closing unexpectedly.
  3. Warning lights on the dashboard related to the back door or electrical system.
  4. Inability to manually operate the back door if the automatic function fails.
  5. Unusual noises from the back door mechanism during operation attempts.

How to Fix U1320 Infiniti

  1. Diagnostic Scan: Begin by using an OBD-II scanner to confirm the U1320 code and check for any additional codes that may provide further insight into the issue.
  2. Inspect Wiring and Connectors: Examine the wiring harness and connectors associated with the back door control module for signs of damage, corrosion, or loose connections.
  3. Reprogram Control Module: If the module is confirmed to be the issue, follow the manufacturer’s procedure to reprogram the Automatic Back Door Control Module. This may require specialized diagnostic equipment.
  4. Replace Faulty Components: If any sensors or switches are found to be defective during the inspection, replace them to ensure proper communication with the control module.
  5. Test Functionality: After repairs and reprogramming, test the back door operation multiple times to ensure that the issue has been resolved and that the system is functioning correctly.

Cost to Fix U1320 Infiniti

The cost to repair a U1320 code can vary widely based on the specific diagnosis and the parts required. On average, repairs may range from $200 to $800. This estimate includes potential costs for parts such as a new control module or sensors, as well as labor costs. Labor rates typically range from $80 to $150 per hour, depending on the shop's location and reputation. In metropolitan areas or at dealerships, rates may be higher, while independent shops often offer more competitive pricing. It is advisable to consult local repair shops for a more precise estimate based on your vehicle's specific needs and the local market conditions.

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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 U1320 Infiniti Code

1. What does the OBDII code U1320 in an Infiniti indicate?

The code U1320 in an Infiniti signifies an Automatic Back Door Control Module Reprogramming Error.

2. What are the common symptoms of the U1320 code in an Infiniti?

Common symptoms of the U1320 code may include issues with the automatic back door control module, such as failure to open or close properly, malfunctioning sensors, or warning lights on the dashboard.

3. What are the possible causes of the U1320 code in an Infiniti?

The U1320 code in an Infiniti can be triggered by various factors, including faulty wiring, a defective back door control module, software glitches, or issues with the vehicle's electronic system.

4. How can I diagnose the U1320 code in my Infiniti?

Diagnosing the U1320 code typically involves using an OBDII scanner to retrieve the code from the vehicle's computer system and conducting a thorough inspection of the automatic back door control module and related components.

5. Can I drive my Infiniti with the U1320 code present?

It is not recommended to drive your Infiniti with the U1320 code present, as the automatic back door control module may not function correctly, posing a safety risk. It is advisable to address the issue promptly.

6. How can I repair the U1320 code in my Infiniti?

Repairing the U1320 code often involves reprogramming the automatic back door control module, checking and repairing any faulty wiring, replacing defective components, and clearing the error code from the system.

7. Can I reset the U1320 code in my Infiniti without professional help?

While some error codes can be cleared with a simple reset, the U1320 code related to the automatic back door control module may require specific reprogramming procedures that are best handled by a qualified technician.

8. How much does it typically cost to repair the U1320 code in an Infiniti?

The cost of repairing the U1320 code in an Infiniti can vary depending on the extent of the issue, parts needed for replacement, labor costs, and dealership or repair shop rates. It is advisable to get a diagnostic and repair estimate from a professional.

9. How long does it take to reprogram the back door control module for the U1320 code in an Infiniti?

Reprogramming the back door control module for the U1320 code in an Infiniti can typically take a few hours, as it involves accessing the vehicle's computer system, updating software, and testing the functionality of the module.

10. Is the U1320 code in an Infiniti a common issue?

The U1320 code related to the automatic back door control module in an Infiniti is not as common as some other OBDII codes, but it can occur due to various electrical or software-related issues in the vehicle.

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