VCLEFT_a120 — DI DRIVE MIA
Full alert identifier: VCLEFT_a120_DI_DRIVE_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 VCLEFT_a120. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
DIPR System Status
VCLEFT_
|
— |
EGGLEFTPRIV Aggregated Axle Speed
VCLEFT_
|
— |
EGGLEFTPRIV Chassis Cntl
VCLEFT_
|
— |
EGGLEFTPRIV Estimated Brake Temp
VCLEFT_
|
— |
EGGLEFTPRIV Loc Status
VCLEFT_
|
— |
EGGLEFTPRIV Loc Status 2
VCLEFT_
|
— |
EGGLEFTPRIV Prnd Control
VCLEFT_
|
— |
EGGLEFTPRIV Speed
VCLEFT_
|
— |
Show 30 more fields
| Signal | Unit |
|---|---|
EGGLEFTPRIV System Status
VCLEFT_
|
— |
EGGREARPRIV Aggregated Axle Speed
VCLEFT_
|
— |
EGGREARPRIV Chassis Cntl
VCLEFT_
|
— |
EGGREARPRIV Estimated Brake Temp
VCLEFT_
|
— |
EGGREARPRIV Loc Status
VCLEFT_
|
— |
EGGREARPRIV Loc Status 2
VCLEFT_
|
— |
EGGREARPRIV Prnd Control
VCLEFT_
|
— |
EGGREARPRIV Speed
VCLEFT_
|
— |
EGGREARPRIV System Status
VCLEFT_
|
— |
EGGRIGHTPRIV Loc Status
VCLEFT_
|
— |
EGGRIGHTPRIV Prnd Control
VCLEFT_
|
— |
EGGRIGHTPRIV Speed
VCLEFT_
|
— |
EGGRIGHTPRIV System Status
VCLEFT_
|
— |
LC Speed
VCLEFT_
|
— |
LEFTBODY Speed
VCLEFT_
|
— |
LEFTBODY System Status
VCLEFT_
|
— |
LOOP Aggregated Axle Speed
VCLEFT_
|
— |
LOOP Chassis Cntl
VCLEFT_
|
— |
LOOP Loc Status
VCLEFT_
|
— |
LOOP Loc Status 2
VCLEFT_
|
— |
LOOP Speed
VCLEFT_
|
— |
LOOP System Power
VCLEFT_
|
— |
LOOP System Status
VCLEFT_
|
— |
LOOP Vehicle Estimates
VCLEFT_
|
— |
RC Speed
VCLEFT_
|
— |
REARSTEER Speed
VCLEFT_
|
— |
RIGHTBODY Speed
VCLEFT_
|
— |
RIGHTBODY System Status
VCLEFT_
|
— |
THERMAL Speed
VCLEFT_
|
— |
THERMAL System Status
VCLEFT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of VCLEFT_a120.