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 and U12C887
This code concerns a high-voltage or safety-related system. It must be diagnosed and repaired by a technician qualified for that work, so we do not list parts for it here. If your technician has already identified a part, send us the code and the VIN and we will tell you what we can help with.
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.
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 confirm the reference against the VIN, then tell you availability, price and lead time. We ship from China to workshops and distributors across Europe.