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B0109

LIDAR Washer Actuator D

Fault on LIDAR washer actuator D — sprays cleaning fluid onto the LIDAR sensor lens to keep it free of dirt, snow or insects.

  • Check engine light: Yes
  • Emissions related: No
  • Repair difficulty: medium

Symptoms

  • Warning light or symbol related to the affected system
  • Comfort or safety function impaired

Common causes

Ordered by how often each turns out to be the cause.

  • Washer actuator failedCommon

Parts involved

  • Lidar Washer Actuator D
  • Actuator Wiring

B0109 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.