B100612 — Overhead lamp short to power
Quick answer
B100612 indicates a short circuit in the front interior lamp circuit that the body control module switches, so that lamp may stay on or not work.
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
- Front overhead lamp stays on
- Interior light does not respond to switches
- B100612 stored in the BCM
- Battery drain from the lamp
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 B100612
Confirm the reference against your VIN before ordering — the same fault can sit in different hardware depending on the build.
| Part | Aiways OE ref. | |
|---|---|---|
| Front reading lamp | 861966001H | Find part |
Frequently asked questions
Can I drive an Aiways U5 with B100612?
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 B100612 mean?
B100612 indicates a short circuit in the front interior lamp circuit that the body control module switches, so that lamp may stay on or not work.
What should be checked first for B100612?
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 B100612?
Front reading lamp.
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.