PSFA_a069 — PSFA MIA
Full alert identifier: PSFA_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 PSFA_a069. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
HANDWHEEL Feedback Control
PSFA_
|
— |
HANDWHEEL Interface Version
PSFA_
|
— |
HANDWHEEL Steering Control
PSFA_
|
— |
HANDWHEEL System CCW
PSFA_
|
— |
HANDWHEEL Temperature
PSFA_
|
— |
LC Status
PSFA_
|
— |
PSFAI Challenge
PSFA_
|
— |
PSFAI Challenge Status
PSFA_
|
— |
Show 18 more fields
| Signal | Unit |
|---|---|
PSFAI Controller Startup
PSFA_
|
— |
PSFAI Feedback Internal
PSFA_
|
— |
PSFAI Feedback Internal 2
PSFA_
|
— |
PSFAI Handwheel Calibration
PSFA_
|
— |
PSFAI Motor Calibration
PSFA_
|
— |
PSFAI Return Target Internal
PSFA_
|
— |
PSFAI Steering Control Internal
PSFA_
|
— |
PSFAI Vehicle Signals
PSFA_
|
— |
RACK System CCW
PSFA_
|
— |
RACK System CW
PSFA_
|
— |
SHAFTP Rear Steer Request
PSFA_
|
— |
SHAFTP Status
PSFA_
|
— |
SHAFTP Steering Control
PSFA_
|
— |
SHAFTP System CW
PSFA_
|
— |
SHAFTS Rear Steer Request
PSFA_
|
— |
SHAFTS Steering Control
PSFA_
|
— |
SHAFTS System CCW
PSFA_
|
— |
SHAFTS System CW
PSFA_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PSFA_a069.