TRCM_a120 — DI DRIVE MIA
Full alert identifier: TRCM_a120_DI_DRIVE_MIA
Alert description
One or more of the messages the vehicle controller receives periodically from the drive interface (DI) electronic control unit (ECU) is not received while the vehicle is in Drive, indicating the DI ECU may be unavailable (MIA).
Potential impact
Vehicle speed and power may be limited.
Set condition
One or more of the expected messages from the DI ECU is not received while the vehicle is in Drive.
Clear condition
The vehicle controller starts receiving the expected messages from the DI ECU while the vehicle is in Drive, or the vehicle is no longer in Drive.
Signals to check
These diagnostic fields are associated with TRCM_a120. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
BDY Speed
TRCM_
|
— |
CH Chassis Cntl
TRCM_
|
— |
CH Loc Status 2
TRCM_
|
— |
CH Speed
TRCM_
|
— |
PARTY Aggregated Axle Speed
TRCM_
|
— |
PARTY Autonomy Health
TRCM_
|
— |
PARTY Chassis Cntl
TRCM_
|
— |
PARTY Loc Status
TRCM_
|
— |
Show 25 more fields
| Signal | Unit |
|---|---|
PARTY Loc Status 2
TRCM_
|
— |
PARTY Motor Status
TRCM_
|
— |
PARTY Prnd Control
TRCM_
|
— |
PARTY Speed
TRCM_
|
— |
PARTY Stalkless Interfaces
TRCM_
|
— |
PARTY Status
TRCM_
|
— |
PARTY System Status
TRCM_
|
— |
PARTY Torque
TRCM_
|
— |
PARTY Vehicle Estimates
TRCM_
|
— |
PT Speed
TRCM_
|
— |
PT System Power
TRCM_
|
— |
PT System Status
TRCM_
|
— |
VEH Aggregated Axle Speed
TRCM_
|
— |
VEH Autonomy Health
TRCM_
|
— |
VEH Chassis Cntl
TRCM_
|
— |
VEH Estimated Brake Temp
TRCM_
|
— |
VEH Loc Status
TRCM_
|
— |
VEH Loc Status 2
TRCM_
|
— |
VEH Motor Status
TRCM_
|
— |
VEH Prnd Control
TRCM_
|
— |
VEH Speed
TRCM_
|
— |
VEH System Power
TRCM_
|
— |
VEH System Status
TRCM_
|
— |
VEH Torque
TRCM_
|
— |
VEH Vehicle Estimates
TRCM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of TRCM_a120.