SSFAM_a069 — PSFA MIA
Full alert identifier: SSFAM_a069_PSFA_MIA
Alert description
One or more of the messages the vehicle controller receives periodically from the Primary Steering Feedback Actuator (PSFA) electronic control unit (ECU) is not received, indicating the PSFA ECU may be unavailable (MIA).
Potential impact
Steering wheel feedback functionality may be limited or unavailable.
Set condition
One or more of the expected messages from the PSFA ECU is not received.
Clear condition
The vehicle controller starts receiving the expected messages from the PSFA ECU.
Signals to check
These diagnostic fields are associated with SSFAM_a069. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
HANDWHEEL Feedback Control
SSFAM_
|
— |
HANDWHEEL Interface Version
SSFAM_
|
— |
HANDWHEEL Steering Control
SSFAM_
|
— |
HANDWHEEL System CCW
SSFAM_
|
— |
HANDWHEEL Temperature
SSFAM_
|
— |
LC Status
SSFAM_
|
— |
PSFAI Challenge
SSFAM_
|
— |
PSFAI Challenge Status
SSFAM_
|
— |
Show 18 more fields
| Signal | Unit |
|---|---|
PSFAI Controller Startup
SSFAM_
|
— |
PSFAI Feedback Internal
SSFAM_
|
— |
PSFAI Feedback Internal 2
SSFAM_
|
— |
PSFAI Handwheel Calibration
SSFAM_
|
— |
PSFAI Motor Calibration
SSFAM_
|
— |
PSFAI Return Target Internal
SSFAM_
|
— |
PSFAI Steering Control Internal
SSFAM_
|
— |
PSFAI Vehicle Signals
SSFAM_
|
— |
RACK System CCW
SSFAM_
|
— |
RACK System CW
SSFAM_
|
— |
SHAFTP Rear Steer Request
SSFAM_
|
— |
SHAFTP Status
SSFAM_
|
— |
SHAFTP Steering Control
SSFAM_
|
— |
SHAFTP System CW
SSFAM_
|
— |
SHAFTS Rear Steer Request
SSFAM_
|
— |
SHAFTS Steering Control
SSFAM_
|
— |
SHAFTS System CCW
SSFAM_
|
— |
SHAFTS System CW
SSFAM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SSFAM_a069.