B105387 — Right rear window lost communication
Quick answer
B105387 indicates that the body control module has lost communication with the right rear window motor, so that window stops working.
What to check first
- Read all stored fault codes with a scan tool and deal with related codes first.
- Check the 12 V battery state of charge and terminals; a weak 12 V supply causes many electronic faults.
- Inspect the fuses that protect this circuit.
Symptoms you may notice
- Right-rear window stuck and will not move
- Window switch has no effect on that door
- B105387 stored in the BCM
- Fault appearing after window regulator or door wiring work
Can I still drive?
Usually drivable — have it checked soon. If in doubt, park the car and ask a technician — a fault that limits power or shuts the high-voltage system down will not clear by itself.
Parts that fix B105387
Confirm the reference against your VIN before ordering — the same fault can sit in different hardware depending on the build.
| Part | Aiways OE ref. | |
|---|---|---|
| Rear door window regulator motor - right | 861739714A | Find part |
Frequently asked questions
Can I drive an Aiways U5 with B105387?
Usually drivable — have it checked soon. If in doubt, park the car and ask a technician — a fault that limits power or shuts the high-voltage system down will not clear by itself.
What does B105387 mean?
B105387 indicates that the body control module has lost communication with the right rear window motor, so that window stops working.
What should be checked first for B105387?
Read all stored fault codes with a scan tool and deal with related codes first. Check the 12 V battery state of charge and terminals; a weak 12 V supply causes many electronic faults. Inspect the fuses that protect this circuit.
Which parts are involved in B105387?
Rear door window regulator motor - right.
Other Body Control Module (BCM) codes for the Aiways U5
Need the part or a second opinion?
Send the fault code and your VIN — we will confirm the reference, availability and price, and ship from China to workshops and distributors across Europe.