U12C887 — Battery management status timeout
Quick answer
U12C887 indicates that the vehicle controller stopped receiving the battery management system's status messages, so high-voltage functions and driving may be limited.
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 U12C887
Confirm the reference against your VIN before ordering — the same fault can sit in different hardware depending on the build.
| Part | Aiways OE ref. | |
|---|---|---|
| Vehicle controller (VCU) | — | Find part |
| Traction battery assembly | — | Find part |
Frequently asked questions
Can I drive an Aiways U5 with U12C887?
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 U12C887 mean?
U12C887 indicates that the vehicle controller stopped receiving the battery management system's status messages, so high-voltage functions and driving may be limited.
What should be checked first for U12C887?
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 U12C887?
Vehicle controller (VCU), Traction battery assembly.
Other Vehicle Control Unit (VCU) codes for the Aiways U5
P100416Accelerator pedal sensor 1 supply lowP100417Accelerator pedal sensor 1 supply highP100500Accelerator pedal sensor plausibilityP100516Accelerator pedal sensor 2 supply lowP100517Accelerator pedal sensor 2 supply highP100700Gear position faultP101300High-voltage shutdown timeoutP103000battery charge too low vehicle stop
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.