P104400 — battery management system level 1 fault
Quick answer
P104400 indicates that the battery management system reported a level 1 fault to the vehicle control unit.
What to check first
- Read all stored fault codes with a scan tool and deal with related codes first.
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 P104400
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 |
| VCU–battery harness | — | Find part |
Frequently asked questions
Can I drive an Aiways U5 with P104400?
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 P104400 mean?
P104400 indicates that the battery management system reported a level 1 fault to the vehicle control unit.
What should be checked first for P104400?
Read all stored fault codes with a scan tool and deal with related codes first.
Which parts are involved in P104400?
Vehicle controller (VCU), Traction battery assembly, VCU–battery harness.
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.