USM_a087 — DIREL MIA
Full alert identifier: USM_a087_DIREL_MIA
Alert description
One or more of the messages the vehicle controller receives periodically from the rear left drive inverter (DIREL) is not received, indicating the DIREL may be unavailable (MIA).
Potential impact
Vehicle speed and power may be limited.
Set condition
One or more of the expected messages from the DIREL is not received.
Clear condition
The vehicle controller starts receiving the expected messages from the DIREL.
Signals to check
These diagnostic fields are associated with USM_a087. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
PARTY Status
USM_
|
— |
PARTY Temperature
USM_
|
— |
PARTY Thermal Control
USM_
|
— |
PARTY Torque
USM_
|
— |
VEH Motor Status
USM_
|
— |
VEH Status
USM_
|
— |
VEH Temperature
USM_
|
— |
VEH Thermal Control
USM_
|
— |
Show 1 more field
| Signal | Unit |
|---|---|
VEH Torque
USM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of USM_a087.