OBD Guide
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U1321

Automatic Back Door Control Module Configuration Error

U1321 is an OBD-II diagnostic trouble code meaning: Automatic Back Door Control Module Configuration Error. Common causes: incorrect module configuration, software failure. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Automatic tailgate won't open or close
  • The door works intermittently
  • Fault alarm on the dashboard
  • The door reacts with a delay
  • The door does not respond to commands from the key fob

Causes

  • Incorrect module configuration
  • Software failure
  • Problems with wiring or connectors
  • Control module malfunction
  • Module power problems

How to Fix

  1. Check module connections and wiring
  2. Update or reinstall module software
  3. Check configuration settings
  4. Replace the control module if necessary
  5. Repair only from an authorized dealer

Related codes

U1320U1322U1323

FAQ

What does the U1321 code mean?

U1321 is an OBD-II diagnostic trouble code that indicates: Automatic Back Door Control Module Configuration Error

What causes a U1321 error code?

The most common causes of U1321 include: Incorrect module configuration; Software failure; Problems with wiring or connectors; Control module malfunction.

How do I fix a U1321 diagnostic trouble code?

To fix U1321: Check module connections and wiring. Update or reinstall module software. Check configuration settings. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U1321?

Yes, but get it checked soon

How much does it cost to fix U1321?

The estimated repair cost for U1321 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat