B0106 indicates a fault detected in the LiDAR washer actuator circuit, which controls the small pump or solenoid that sprays washer fluid onto a vehicle's forward-facing LiDAR sensor to keep its lens clean. When this circuit fails, the sensor may not be cleaned automatically, potentially degrading the performance of dependent driver-assistance features.
The actuator motor or pump is the component that actually moves washer fluid; internal wear, seized bearings, or coil failure are the most common reasons the circuit reports an open, short, or performance fault.
Debris, ice, or mineral deposits can block the tiny nozzle aimed at the LiDAR, and cracked hoses or loose fittings can prevent pressure from reaching the lens, triggering a system fault.
Corroded pins, chafed wires, or poor connections between the actuator and its controller can cause high resistance, opens, or shorts that set the code.
Insufficient fluid, sludge, or frozen washer fluid can prevent normal actuator operation and may cause the control module to log a fault after repeated failed priming attempts.
A control-module output failure is possible but uncommon; it should only be considered after the actuator, fluid path, and wiring have been ruled out.
The vehicle is usually drivable, but LiDAR-dependent safety features may be degraded or temporarily disabled until the sensor lens can be kept clean.
No. If the actuator, nozzle, wiring, or fluid issue is still present, the code will generally return after the next self-test or cleaning request.
Usually not. This code most often points to the washer actuator, a clogged or leaking nozzle/line, wiring issues, or fluid problems. Replacing a control module is rarely the correct first repair.
Yes, you can gently clean the lens with a soft, lint-free cloth and an approved glass cleaner, but avoid spraying liquid directly into sensor openings and address the fault to restore automatic cleaning.