TRCM_a108 — DIF MIA
Full alert identifier: TRCM_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 TRCM_a108. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
CH Torque
TRCM_
|
— |
PARTY Motor Status
TRCM_
|
— |
PARTY Status
TRCM_
|
— |
PARTY Temperature
TRCM_
|
— |
PARTY Thermal Control
TRCM_
|
— |
PARTY Torque
TRCM_
|
— |
PT Temperature
TRCM_
|
— |
PT Thermal Control
TRCM_
|
— |
Show 6 more fields
| Signal | Unit |
|---|---|
VEH Hv Status
TRCM_
|
— |
VEH Motor Status
TRCM_
|
— |
VEH Status
TRCM_
|
— |
VEH Temperature
TRCM_
|
— |
VEH Thermal Control
TRCM_
|
— |
VEH Torque
TRCM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of TRCM_a108.