OBD Guide
ENFRDEESPT

U11FA

Lost Communication With Right Blind Spot Sensor

U11FA is an OBD-II diagnostic trouble code meaning: Lost Communication With Right Blind Spot Sensor. Common causes: right blind spot sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Blind spot monitoring system not working
  • Dashboard warning light
  • No audible warnings for vehicles in the blind spot
  • Error message in the vehicle information system

Causes

  • Right blind spot sensor malfunction
  • Open or short circuit in wiring harness
  • Poor contact in the sensor connector
  • Sensor power problems
  • CAN bus fault

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Check the contacts in the sensor connector for oxidation and damage.
  3. Check the power supply and ground of the sensor
  4. Scan the system for other CAN bus errors
  5. If necessary, replace the blind spot sensor

Related codes

U11F9U11FBU11FC

FAQ

What does the U11FA code mean?

U11FA is an OBD-II diagnostic trouble code that indicates: Lost Communication With Right Blind Spot Sensor

What causes a U11FA error code?

The most common causes of U11FA include: Right blind spot sensor malfunction; Open or short circuit in wiring harness; Poor contact in the sensor connector; Sensor power problems.

How do I fix a U11FA diagnostic trouble code?

To fix U11FA: Check the integrity of the wiring harness to the sensor. Check the contacts in the sensor connector for oxidation and damage.. Check the power supply and ground of the sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U11FA?

Limited driving only, diagnose soon

How much does it cost to fix U11FA?

The estimated repair cost for U11FA is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat