SDCR_a014 — V Bus Irrational
Full alert identifier: SDCR_a014_vBusIrrational
Message shown in the car
Powertrain requires service Vehicle speed and power may be limited
Alert description
Secondary Disconnect Controller (SDC) High Voltage (HV) bus voltage sensor is providing irrational values.
Potential impact
Pyro disconnect may not function as expected.
Set condition
Sets when HV bus voltage measurement is low while HV backup rail is up.
Clear condition
Clears when HV bus voltage measurement is within rational or expected range.
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 |
|---|---|
HV Backup Supply V
SDCR_
|
V |
Boost Rail V
SDCR_
|
V |
V Bat
SDCR_
|
V |
| Signal | Unit |
|---|---|
Reason V Bus Shorted High
SDCR_
|
— |
Reason V Bus Shorted Low
SDCR_
|
— |
Vbkup Good Fdbk
SDCR_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SDCR_a014.