OBD-II fault code

B0106: LIDAR Washer Actuator A

What it means

This code identifies a fault associated with LIDAR Washer Actuator A. The code alone does not specify the failure mode.

How it works

LIDAR Washer Actuator A operates the washer function assigned to LIDAR channel A, helping remove dirt or other contamination from that sensor. B0106 indicates a fault associated with actuator A; a low fluid level or blocked plumbing can resemble an actuator problem.

Common causes

Most likely first.

  1. Faulty washer actuator
  2. Damaged wiring
  3. Loose or corroded connector
  4. Low washer fluid or blocked plumbing

Symptoms

  • LIDAR sensor cleaning warning
  • Reduced driver assistance function
  • Warning message

How to diagnose it

  1. Scan the driver-assistance or body module for B0106 and related washer codes, and review available status data to see whether actuator A is being commanded.
  2. Check the washer-fluid level and inspect the LIDAR A nozzle, hoses, and plumbing for blockage, leaks, kinks, or disconnection.
  3. Locate washer actuator A using service information and inspect its connector and wiring for damage, corrosion, or looseness.
  4. Check the actuator A fuse, power, and ground against the wiring diagram and manufacturer's specification.
  5. Command actuator A with a compatible scan tool if supported, and check whether it operates and fluid reaches the LIDAR A cleaning point.

Common fixes

  • Refill the washer-fluid reservoir with the specified fluid.
  • Clear a blockage or reconnect a leaking, kinked, or disconnected hose serving LIDAR A.
  • Clean and secure the actuator A connector or repair damaged wiring.
  • Replace a failed fuse after checking for a short or overload.
  • Replace LIDAR washer actuator A if its supply and plumbing are sound but it fails to operate.

Can I keep driving?

Driving may be possible, but dirt on LIDAR A can reduce the performance or availability of driver-assistance features that depend on that sensor. Keep the sensor clean and do not rely on those features if the vehicle reports reduced sensor function.

A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together

This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.

Codes for the same component

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