B0108 code meaning
LIDAR Washer Actuator C
What B0108 means
B0108 covers lidar washer actuator C. Robotaxis with several lidars, for example on roof and corners, are where a third circuit would fit. Valeo lists a heated telescopic lidar nozzle, a 2021 PACE award finalist, and says it supplies cleaning systems with ECU and software for private cars and robotaxis; a telescopic nozzle adds a moving part that can stick in frost. Solero's 4/3-way valve distributes fluid centrally so fewer DC pumps are needed, meaning actuator C may be a valve position rather than a pump. Jalopnik noted in 2018 that Waymo cleaned its lidar domes with small wipers and that Cruise was building its own cleaning hardware. No manufacturer assigns C publicly or documents B0108.
B0108 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.3 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0108
- Lidar C not cleaned, especially in frost or snow
- Automated driving refuses to engage or hands back control
Common causes of B0108
- Most likelyTelescopic nozzle C stuck by ice or dirt, actuator overloaded
- PossibleDistribution valve position C not switching
- Less likelyNozzle heater or shared connector on circuit C faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Lidar washer actuator cWasher pumpObject detection maintenance module a
What each part of B0108 means
| B | Body system: airbags, seat belts, power seats, lights and climate control. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 08 | The exact fault in that area. |
What to do next
- Note B0108 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about B0108
What does B0108 mean?
B0108 means "LIDAR Washer Actuator C". B0108 covers lidar washer actuator C. It is a generic code, so it means the same on every make.
Is it safe to drive with B0108?
Drive gently and only to a workshop. With B0108 the car can go into limp mode (reduced power) to protect itself.
Will B0108 fail an emissions test?
B0108 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is B0108 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will B0108 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.