B104D31 — Left Rear tyre pressure sensor signal lost
Quick answer
B104D31 means the car is not receiving a signal from the tyre pressure sensor at the left rear wheel. The sensor itself, or its connection in that wheel, is the usual cause.
What to check first
- 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 B104D31
Confirm the reference against your VIN before ordering — the same fault can sit in different hardware depending on the build.
| Part | Aiways OE ref. | |
|---|---|---|
| Tyre pressure sensor | 861913201A | Find part |
Frequently asked questions
Can I drive an Aiways U5 with B104D31?
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 B104D31 mean?
B104D31 means the car is not receiving a signal from the tyre pressure sensor at the left rear wheel. The sensor itself, or its connection in that wheel, is the usual cause.
What should be checked first for B104D31?
Read all stored fault codes with a scan tool and deal with related codes first.
Which parts are involved in B104D31?
Tyre pressure sensor.
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.