U00BA88 — Fast-charge CAN bus off
Quick answer
U00BA88 indicates that the battery management system has lost the CAN link used for DC fast charging, so fast charging is not possible.
What to check first
- Read all stored fault codes with a scan tool and deal with related codes first.
- High-voltage system: do not open or disconnect high-voltage components. Refer the car to a technician qualified for high-voltage work.
Can I still drive?
Have it inspected before further driving. 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 U00BA88
Confirm the reference against your VIN before ordering — the same fault can sit in different hardware depending on the build.
| Part | Aiways OE ref. | |
|---|---|---|
| Combined AC/DC charge socket | — | Find part |
| Charge inlet harness | — | Find part |
| Traction battery assembly | — | Find part |
Frequently asked questions
Can I drive an Aiways U5 with U00BA88?
Have it inspected before further driving. 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 U00BA88 mean?
U00BA88 indicates that the battery management system has lost the CAN link used for DC fast charging, so fast charging is not possible.
What should be checked first for U00BA88?
Read all stored fault codes with a scan tool and deal with related codes first. High-voltage system: do not open or disconnect high-voltage components. Refer the car to a technician qualified for high-voltage work.
Which parts are involved in U00BA88?
Combined AC/DC charge socket, Charge inlet harness, Traction battery assembly.
Other Battery Management System (BMS) codes for the Aiways U5
P11011DShunt current out of rangeP111892Cell temperature too highP112413Pack voltage lostP11241Ainsulation monitoring level 1 (DC charging)P11251Ainsulation monitoring level 2 (DC charging)P11261Ainsulation monitoring level 1 (low-voltage condition)P11271Ainsulation monitoring level 2 (low-voltage condition)P115272Precharge relay will not close
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.