B0109
Low Severity (Level 2)LIDAR Washer Actuator D
B0109 usually means lIDAR Washer Actuator D.
Can you still drive with B0109?
⚠️Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
Typical repair cost: $50 – $400
Severity Level 2 — Low
This code indicates a minor issue that is unlikely to cause immediate driveability problems. You can typically continue driving but should have the vehicle inspected at your earliest convenience.
Common Symptoms
- Windshield wipers not working, stuck mid-cycle, or only working on one speed
- Wipers won't park (return to rest position) when turned off
- Diagnostic trouble code (DTC) stored in module memory
- Fault may be intermittent — code may clear itself and reappear
- Reduced vehicle functionality related to the wiper/washer system
Possible Causes
- Faulty wiper motor — most common cause, test before replacing
- Damaged or corroded wiring/connector in the wiper/washer system circuit
- Blown fuse or faulty relay for the wiper/washer system
- Poor ground connection — check and clean all related ground points
- Control module fault — rare but possible, only consider after ruling out simpler causes
Common Fixes
- Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($43-80 at shop, free at auto parts store for basic scan)
- Visually inspect the wiper/washer system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $54 diagnostic fee at shop)
- Replace wiper motor if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($50-400)
- Check and replace any blown fuses in the wiper/washer system fuse circuit — if fuse blows again, there's still a short that needs to be found ($5-15 for fuses)
- Perform a wiggle test on the wiper/washer system wiring harness while monitoring live data — see if the fault returns when you move the harness at different points ($0-145 diagnostic labor)
Estimated Repair Cost
These are estimated costs based on generic repair data. Actual costs may vary depending on your vehicle, location, and labor rates.
Frequently Asked Questions
What does B0109 mean?
B0109 stands for "LIDAR Washer Actuator D". B0109 usually means lIDAR Washer Actuator D.
Can you drive with B0109?
Short-distance driving is usually OK, but have this diagnosed within a week to prevent further damage.
How much does it cost to fix B0109?
Repair costs for B0109 typically range from $50 to $400, depending on your vehicle make, model, and local labor rates. Common fixes include: Scan vehicle with a professional-grade OBD2 scanner to read all stored codes and freeze frame data — note the conditions when the code set ($43-80 at shop, free at auto parts store for basic scan); Visually inspect the wiper/washer system wiring harness and connectors — look for chafed wires, melted insulation, green corrosion, loose pins, or rodent damage (often free to check yourself, $54 diagnostic fee at shop); Replace wiper motor if testing confirms it has failed — use OEM quality, avoid the cheapest no-name aftermarket parts that fail in a year ($50-400).
Will B0109 clear itself?
B0109 is unlikely to clear itself permanently. Even if the check engine light turns off temporarily, the underlying issue typically remains and the code will return. Proper diagnosis and repair are recommended.
Explore Repair Costs
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