SSFA_a069 — PSFA MIA
Full alert identifier: SSFA_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 SSFA_a069. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
HANDWHEEL Feedback Control
SSFA_
|
— |
HANDWHEEL Interface Version
SSFA_
|
— |
HANDWHEEL Steering Control
SSFA_
|
— |
HANDWHEEL System CCW
SSFA_
|
— |
HANDWHEEL Temperature
SSFA_
|
— |
LC Status
SSFA_
|
— |
PSFAI Challenge
SSFA_
|
— |
PSFAI Challenge Status
SSFA_
|
— |
Show 18 more fields
| Signal | Unit |
|---|---|
PSFAI Controller Startup
SSFA_
|
— |
PSFAI Feedback Internal
SSFA_
|
— |
PSFAI Feedback Internal 2
SSFA_
|
— |
PSFAI Handwheel Calibration
SSFA_
|
— |
PSFAI Motor Calibration
SSFA_
|
— |
PSFAI Return Target Internal
SSFA_
|
— |
PSFAI Steering Control Internal
SSFA_
|
— |
PSFAI Vehicle Signals
SSFA_
|
— |
RACK System CCW
SSFA_
|
— |
RACK System CW
SSFA_
|
— |
SHAFTP Rear Steer Request
SSFA_
|
— |
SHAFTP Status
SSFA_
|
— |
SHAFTP Steering Control
SSFA_
|
— |
SHAFTP System CW
SSFA_
|
— |
SHAFTS Rear Steer Request
SSFA_
|
— |
SHAFTS Steering Control
SSFA_
|
— |
SHAFTS System CCW
SSFA_
|
— |
SHAFTS System CW
SSFA_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SSFA_a069.