Critical
1 Devices that report this code0x9012
Manual disconnect switch (QS) in the battery cluster high-voltage box is disconnected.
0x9012Manual disconnect switch (QS) in the battery cluster high-voltage box is disconnected.Critical— level 3
Cause
QS feedback signal anomaly detected inside SBCU (judgment made only after receiving applying high voltage command).
Recommended fix
Send faults externally, limit power, request lower high voltage; if command not received within 5s, cut off the main circuit relay.
Source:
FLS-ES232LC-S.pdfCompiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.