VCSEC_a108 — DIF MIA
Full alert identifier: VCSEC_a108_DIF_MIA
Alert description
One or more of the messages the vehicle controller receives periodically from the front drive inverter (DIF) electronic control unit (ECU) is not received, indicating the DIF ECU may be unavailable (MIA).
Potential impact
Vehicle speed and power may be limited. Thermal management system features depending on DIF functionality may be limited or unavailable.
Set condition
One or more of the expected messages from the DIF ECU is not received.
Clear condition
The vehicle controller starts receiving the expected messages from the DIF ECU.
Signals to check
These diagnostic fields are associated with VCSEC_a108. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
PARTY Status
VCSEC_
|
— |
PARTY Temperature
VCSEC_
|
— |
PARTY Thermal Control
VCSEC_
|
— |
PARTY Torque
VCSEC_
|
— |
PT Temperature
VCSEC_
|
— |
PT Thermal Control
VCSEC_
|
— |
VEH Hv Status
VCSEC_
|
— |
VEH Status
VCSEC_
|
— |
Show 3 more fields
| Signal | Unit |
|---|---|
VEH Temperature
VCSEC_
|
— |
VEH Thermal Control
VCSEC_
|
— |
VEH Torque
VCSEC_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCSEC_a108.