OBD Guide
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U11CB

Lost Left Rear Wheel Speed Message

U11CB is an OBD-II diagnostic trouble code meaning: Lost Left Rear Wheel Speed Message. Common causes: wheel speed sensor malfunction, broken or damaged wiring. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • The ABS/ESP indicator on the dashboard is on
  • Disabling the stabilization system
  • Uneven braking
  • Errors in cruise control operation (if any)

Causes

  • Wheel speed sensor malfunction
  • Broken or damaged wiring
  • Contamination or damage to the toothed ring
  • Problems with the sensor connector connection
  • ABS module malfunction

How to Fix

  1. Check the condition of the sensor and its connection
  2. Inspect the integrity of the wiring and connectors
  3. Check the toothed ring for damage
  4. Measure the sensor resistance
  5. If necessary, replace the wheel speed sensor

Related codes

U11C8U11C9U11CA

FAQ

What does the U11CB code mean?

U11CB is an OBD-II diagnostic trouble code that indicates: Lost Left Rear Wheel Speed Message

What causes a U11CB error code?

The most common causes of U11CB include: Wheel speed sensor malfunction; Broken or damaged wiring; Contamination or damage to the toothed ring; Problems with the sensor connector connection.

How do I fix a U11CB diagnostic trouble code?

To fix U11CB: Check the condition of the sensor and its connection. Inspect the integrity of the wiring and connectors. Check the toothed ring for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U11CB?

Limited driving only, diagnose soon

How much does it cost to fix U11CB?

The estimated repair cost for U11CB is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat