U11D2
Lost Brake Signal
U11D2 is an OBD-II diagnostic trouble code meaning: Lost Brake Signal. Common causes: broken or damaged wires, brake sensor malfunction. Estimated repair cost: $17–56.
Severity
🔴 HighCan you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)
Symptoms
- Check Engine Light Is On
- Incorrect operation of the braking system
- Loss of braking data on dashboard
- Errors in other brake-related systems
Causes
- Broken or damaged wires
- Brake sensor malfunction
- Problems with the control unit
- Oxidation of contacts
- Software error in the control unit
How to Fix
- Check wiring integrity
- Diagnose brake system sensors
- Clean contacts from oxidation
- Check the control unit for errors
- Repair only from an authorized dealer
Related codes
FAQ
What does the U11D2 code mean?
U11D2 is an OBD-II diagnostic trouble code that indicates: Lost Brake Signal
What causes a U11D2 error code?
The most common causes of U11D2 include: Broken or damaged wires; Brake sensor malfunction; Problems with the control unit; Oxidation of contacts.
How do I fix a U11D2 diagnostic trouble code?
To fix U11D2: Check wiring integrity. Diagnose brake system sensors. Clean contacts from oxidation. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U11D2?
Limited driving only, diagnose soon
How much does it cost to fix U11D2?
The estimated repair cost for U11D2 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat