PSFAM_a069 — PSFA MIA
Full alert identifier: PSFAM_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 PSFAM_a069. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
HANDWHEEL Feedback Control
PSFAM_
|
— |
HANDWHEEL Interface Version
PSFAM_
|
— |
HANDWHEEL Steering Control
PSFAM_
|
— |
HANDWHEEL System CCW
PSFAM_
|
— |
HANDWHEEL Temperature
PSFAM_
|
— |
LC Status
PSFAM_
|
— |
PSFAI Challenge
PSFAM_
|
— |
PSFAI Challenge Status
PSFAM_
|
— |
Show 18 more fields
| Signal | Unit |
|---|---|
PSFAI Controller Startup
PSFAM_
|
— |
PSFAI Feedback Internal
PSFAM_
|
— |
PSFAI Feedback Internal 2
PSFAM_
|
— |
PSFAI Handwheel Calibration
PSFAM_
|
— |
PSFAI Motor Calibration
PSFAM_
|
— |
PSFAI Return Target Internal
PSFAM_
|
— |
PSFAI Steering Control Internal
PSFAM_
|
— |
PSFAI Vehicle Signals
PSFAM_
|
— |
RACK System CCW
PSFAM_
|
— |
RACK System CW
PSFAM_
|
— |
SHAFTP Rear Steer Request
PSFAM_
|
— |
SHAFTP Status
PSFAM_
|
— |
SHAFTP Steering Control
PSFAM_
|
— |
SHAFTP System CW
PSFAM_
|
— |
SHAFTS Rear Steer Request
PSFAM_
|
— |
SHAFTS Steering Control
PSFAM_
|
— |
SHAFTS System CCW
PSFAM_
|
— |
SHAFTS System CW
PSFAM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PSFAM_a069.