BMS_a035 — SW Isolation

Full alert identifier: BMS_a035_SW_Isolation

Message shown in the car

Vehicle may not restart Service is required

There is an external or internal isolation alert while pack contactors are closed.

Inability to charge, drive, or support the Low Voltage (LV) system

The BMS detects that isolation is below the minimum threshold while contactors are closed.

Isolation restores to the nominal threshold.

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal	Unit
Active Side V No R `BMS_a035_activeSideVNoR`	V
Active Side V With R `BMS_a035_activeSideVWithR`	V
Iso R `BMS_a035_isoR`	kOhm
Passive Side V No R `BMS_a035_passiveSideVNoR`	V
Passive Side V With R `BMS_a035_passiveSideVWithR`	V

Signal	Unit
Mode `BMS_a035_mode` 0 MODE RESET 1 VEHICLE ISOLATION MODE 2 FEIM NEGATIVE MODE 3 FEIM POSITIVE MODE 4 VOLTAGE SETTLING MODE	—

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_a035.