BMS_w153 — SW neg contactor welded
Full alert identifier: BMS_w153_SW_neg_contactor_welded
Alert description
The battery management system (BMS) has detected that the negative contactor is stuck or welded.
Potential impact
Inability to charge, drive, or support the low voltage (LV) system
Set condition
The BMS detects that the negative contactor is stuck or welded.
Clear condition
This alert must be manually cleared.
Signals to check
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 |
|---|---|
Vdiff
BMS_
|
V |
Coil Current
BMS_
|
A |
Vehicle 12 V
BMS_
|
V |
| Signal | Unit |
|---|---|
Contactor State
BMS_
|
— |
Ctr
BMS_
|
— |
Ctr Err Type
BMS_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_w153.