OBD Guide
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U11DD

Body Control Module Signal Invalid

U11DD is an OBD-II diagnostic trouble code meaning: Body Control Module Signal Invalid. Common causes: bcm wiring harness problems, body control module malfunction. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Incorrect operation of power windows
  • Problems with central locking
  • Lighting faults
  • Random alarm activation
  • Errors on the dashboard

Causes

  • BCM wiring harness problems
  • Body control module malfunction
  • Contact corrosion
  • BCM power problems
  • BCM software error

How to Fix

  1. Check the integrity of the BCM wiring harness
  2. Check module connections and contacts
  3. Check BCM power and ground
  4. Scan the module for additional errors
  5. If necessary, replace or reflash the BCM

Related codes

U11DCU11DEU11DF

FAQ

What does the U11DD code mean?

U11DD is an OBD-II diagnostic trouble code that indicates: Body Control Module Signal Invalid

What causes a U11DD error code?

The most common causes of U11DD include: BCM wiring harness problems; Body control module malfunction; Contact corrosion; BCM power problems.

How do I fix a U11DD diagnostic trouble code?

To fix U11DD: Check the integrity of the BCM wiring harness. Check module connections and contacts. Check BCM power and ground. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U11DD?

Yes, but get it checked soon

How much does it cost to fix U11DD?

The estimated repair cost for U11DD is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat