P11C992 — Battery voltage too low
Quick answer
P11C992 indicates that the high-voltage battery voltage dropped below the limit the battery management system allows at the current temperature. The car limits power and may refuse to drive.
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 P11C992
Confirm the reference against your VIN before ordering — the same fault can sit in different hardware depending on the build.
| Part | Aiways OE ref. | |
|---|---|---|
| Traction battery assembly (53/63 kWh) | — | Find part |
| High-voltage battery harness | — | Find part |
| 12 V auxiliary battery | — | Find part |
Frequently asked questions
Can I drive an Aiways U5 with P11C992?
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 P11C992 mean?
P11C992 indicates that the high-voltage battery voltage dropped below the limit the battery management system allows at the current temperature. The car limits power and may refuse to drive.
What should be checked first for P11C992?
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 P11C992?
Traction battery assembly (53/63 kWh), High-voltage battery harness, 12 V auxiliary battery.
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.