B101213 — Rear fog lamp open circuit
Quick answer
B101213 means the body controller found an open circuit in the left rear fog lamp. An open circuit is normally a failed bulb or a broken connection, not a failed controller.
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 for B101213
A fault code points to a system, not always to one part. Work through the checks above first. If they point to a part, these are the references usually involved. The right version depends on the build, so it is confirmed against the VIN before anything is quoted.
| Part | OE reference | |
|---|---|---|
| Rear fog lamp bulb | 861963113 | View reference |
| Rear fog lamp assembly - left | 861963111A | View reference |
Need one of these parts? Send us the fault code, the VIN and a photo of the part or its label. We check the reference against the VIN, then tell you what we can supply, the price and the lead time.
Frequently asked questions
Can I drive an Aiways U5 with B101213?
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 B101213 mean?
B101213 means the body controller found an open circuit in the left rear fog lamp. An open circuit is normally a failed bulb or a broken connection, not a failed controller.
What should be checked first for B101213?
Inspect the fuses that protect this circuit. Read all stored fault codes with a scan tool and deal with related codes first.
Which parts can be involved in B101213?
Depending on what the checks show: Rear fog lamp bulb, Rear fog lamp assembly - left. A fault code points to a system, not always to one part, so confirm the cause before replacing anything.
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 confirm the reference against the VIN, then tell you availability, price and lead time. We ship from China to workshops and distributors across Europe.