PSFA_a120 — DI DRIVE MIA
Full alert identifier: PSFA_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 PSFA_a120. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
LC Chassis Cntl
PSFA_
|
— |
LC Chassis Control 4
PSFA_
|
— |
LC Speed
PSFA_
|
— |
RC Speed
PSFA_
|
— |
REARSTEER Speed
PSFA_
|
— |
SHAFTP Speed
PSFA_
|
— |
SHAFTS Speed
PSFA_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PSFA_a120.