B100B11 — Brake lamp short to ground
Quick answer
B100B11 means the body controller detected a short to ground in the brake lamp circuit. On this model the brake lamp sits in the rear combination lamp, so that assembly is the usual part replaced.
What to check first
- Inspect the fuses that protect this circuit.
- Read all stored fault codes with a scan tool and deal with related codes first.
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 B100B11
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 combination lamp - left | 861962111D | Find part |
| Rear combination lamp - right | 861962112D | Find part |
Frequently asked questions
Can I drive an Aiways U5 with B100B11?
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 B100B11 mean?
B100B11 means the body controller detected a short to ground in the brake lamp circuit. On this model the brake lamp sits in the rear combination lamp, so that assembly is the usual part replaced.
What should be checked first for B100B11?
Inspect the fuses that protect this circuit. Read all stored fault codes with a scan tool and deal with related codes first.
Which parts are involved in B100B11?
Rear combination lamp - left, Rear combination lamp - 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.