Code
B0107
Generic
B — Body
LIDAR Washer Actuator B
Views:
UK: 26
EN: 40
RU: 25
AI status
Completed
Completed
100%
Causes
- Open or shorted wiring to the LIDAR washer actuator B
- Corroded or loose connector at the actuator
- Failed washer pump/motor or actuator assembly
- Blown fuse or failed relay in washer circuit
- Control module or body ECU output fault
- Mechanical blockage or seized pump/nozzle
Symptoms
- LIDAR washer B does not spray when commanded
- Warning or message indicating LIDAR washer fault on instrument cluster
- Reduced or intermittent cleaning of the associated LIDAR/sensor
- Audible lack of pump noise from actuator area when activated
- Stored B0107 DTC in vehicle memory
What to check
- Scan for stored codes and freeze-frame data; note any related body or CAN codes
- Check washer fluid level and filler cap; verify fluid reaches pump
- Visually inspect wiring harness and connector at actuator B for corrosion, damage, or loose pins
- Verify related fuses and relays for continuity and operation
- Attempt activation with a scan tool and listen/feel for pump operation
- Back-probe actuator connector to measure supply voltage and ground when commanded
Signal parameters
- Command input from ECU: switched 12 V supply when activated (expected ~11–14 V at connector pin under load)
- Off state: near 0 V on command pin (or open circuit depending on design)
- Ground continuity: low resistance to chassis ground at actuator ground pin
- Actuator coil/motor resistance: low ohms (typically single- to low-double-digit ohms) — expect a low-resistance circuit, not infinite
- Current draw when running: measurable motor current (varies by vehicle; should not be zero or extremely high indicating short)
Diagnostic algorithm
- Read and record DTCs and any related codes. Clear codes and attempt to re-run to confirm repeatability.
- Verify washer fluid level and visually inspect for leaks or disconnected hoses.
- Command LIDAR washer B ON via scan tool; listen for pump and observe nozzles. Note response and any messages.
- Inspect connector at actuator B for corrosion, bent pins, or poor mating. Repair or reseat connector as needed.
- Check fuses and relays for the washer circuit; replace if faulty.
- Back-probe the actuator connector while commanding ON: verify supply voltage on power pin and good ground on ground pin. If no supply, trace wiring back to relay/fuse/ECU.
- If supply/ground are present but actuator does not run, disconnect and bench-test actuator with direct 12 V power to confirm mechanical/electrical operation.
- If actuator runs on bench but not from vehicle, perform continuity and resistance checks along harness; repair short/open as found.
- If harness and actuator test good, suspect ECU/output driver fault—verify CAN or body module outputs and update software or replace module per manufacturer procedures.
- After repairs, clear DTCs and retest system for correct operation and confirm no reappearance of code.
Likely causes
- Failed washer pump/motor (actuator) B
- Open/shorted connector or damaged wiring between ECU and actuator
- Blown fuse or bad relay feeding the actuator
- Mechanical jam or clogged nozzle preventing pump load change
- Faulty body/control module output or software anomaly
Fault status
Status
LIDAR washer actuator B circuit fault — actuator not responding, open/short, or abnormal current detected.
Repair difficulty: Medium
Diagnostic time: 0.5-1.5 hours
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