VCREAR_a133 — DI MIA
Full alert identifier: VCREAR_a133_DI_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 VCREAR_a133. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
DIPR Trailer Brake Control
VCREAR_
|
— |
EGGLEFTPRIV Offroad Status
VCREAR_
|
— |
EGGLEFTPRIV System Limits
VCREAR_
|
— |
EGGREARPRIV System Limits
VCREAR_
|
— |
LOOP LV Health
VCREAR_
|
— |
LOOP Liftgate Status
VCREAR_
|
— |
LOOP System Limits
VCREAR_
|
— |
LOOP Vehicle Estimates
VCREAR_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCREAR_a133.