SEPSM_a069 — PSFA MIA
Full alert identifier: SEPSM_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 SEPSM_a069. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
HANDWHEEL Feedback Control
SEPSM_
|
— |
HANDWHEEL Interface Version
SEPSM_
|
— |
HANDWHEEL Steering Control
SEPSM_
|
— |
HANDWHEEL System CCW
SEPSM_
|
— |
HANDWHEEL Temperature
SEPSM_
|
— |
LC Status
SEPSM_
|
— |
PSFAI Challenge
SEPSM_
|
— |
PSFAI Challenge Status
SEPSM_
|
— |
Show 18 more fields
| Signal | Unit |
|---|---|
PSFAI Controller Startup
SEPSM_
|
— |
PSFAI Feedback Internal
SEPSM_
|
— |
PSFAI Feedback Internal 2
SEPSM_
|
— |
PSFAI Handwheel Calibration
SEPSM_
|
— |
PSFAI Motor Calibration
SEPSM_
|
— |
PSFAI Return Target Internal
SEPSM_
|
— |
PSFAI Steering Control Internal
SEPSM_
|
— |
PSFAI Vehicle Signals
SEPSM_
|
— |
RACK System CCW
SEPSM_
|
— |
RACK System CW
SEPSM_
|
— |
SHAFTP Rear Steer Request
SEPSM_
|
— |
SHAFTP Status
SEPSM_
|
— |
SHAFTP Steering Control
SEPSM_
|
— |
SHAFTP System CW
SEPSM_
|
— |
SHAFTS Rear Steer Request
SEPSM_
|
— |
SHAFTS Steering Control
SEPSM_
|
— |
SHAFTS System CCW
SEPSM_
|
— |
SHAFTS System CW
SEPSM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SEPSM_a069.