AutoCodesGeneric – U1321

U1321 Code - Automatic Back Door Control Module Configuration Error

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the configuration work of the Automatic Back Door Control Module has not been started. Common causes include Configuration work of Automatic Back Door Control Module, Faulty Automatic Back Door Control Module, Automatic Back Door Control Module harness is open or shorted. 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
U1321 indicates Automatic Back Door Control Module Configuration Error.
Common causes
Common causes include Configuration work of Automatic Back Door Control Module, Faulty Automatic Back Door Control Module, Automatic Back Door Control Module harness is open or shorted.
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.
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Code Popularity 3,068
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 16, 2020
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Code U1321 Description

The Diagnostic Trouble Code (DTC) sets when the configuration work of the Automatic Back Door Control Module has not been started.
OBDII Code U1321 - Automatic Back Door Control Module Configuration Error - AutoCodes.com
U1321 Code - Automatic Back Door Control Module Configuration Error

What are the Possible Causes of the DTC U1321?

  • Configuration work of Automatic Back Door Control Module
  • Faulty Automatic Back Door Control Module
  • Automatic Back Door Control Module harness is open or shorted
  • Automatic Back Door Control Module circuit poor electrical connection

How to Fix the DTC U1321?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1321 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.

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Information for Specific Makes

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 U1321 Code

What does the OBDII code U1321 mean?

U1321 indicates an Automatic Back Door Control Module Configuration Error, signaling a problem with the communication or configuration of the module responsible for the automatic back door operation.

What are common symptoms of the U1321 code?

Common symptoms include the failure of the automatic back door to open or close, warning lights on the dashboard, and possible malfunctioning of related features such as the rear hatch or trunk.

What could cause the U1321 code to be triggered?

Causes may include a faulty Automatic Back Door Control Module, wiring issues, a blown fuse, or incorrect configuration settings after a repair or battery replacement.

How can I diagnose the U1321 code?

Start by using an OBDII scanner to confirm the code, then visually inspect wiring and connectors for damage. Check the fuses and clear the code to see if it returns after a test drive.

What are some repair tips for fixing the U1321 code?

Repair tips include checking and replacing any damaged wiring, ensuring proper connections, resetting the module configuration if necessary, and replacing the Automatic Back Door Control Module if it is defective.

Can I drive my vehicle with the U1321 code?

While you can drive the vehicle, the automatic back door may not function, which could be inconvenient. It’s advisable to address the issue to prevent further complications.

How do I clear the U1321 code after repairs?

You can clear the U1321 code using an OBDII scanner to reset the system. After repairs, ensure that the module is properly configured before clearing the code.

Is the U1321 code serious?

The seriousness of the U1321 code can vary. While it may not impact the vehicle's drivability, it can indicate a malfunction that affects the convenience and security features related to the back door.

What should I do if the U1321 code returns after repairs?

If the code returns, re-check all connections and wiring for faults, ensure the module is correctly configured, and consider seeking professional diagnostic assistance for deeper issues.

Discuss the causes and fixes for U1321 OBDII Code

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