PEPSM_a069 — PSFA MIA
Full alert identifier: PEPSM_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 PEPSM_a069. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
HANDWHEEL Feedback Control
PEPSM_
|
— |
HANDWHEEL Interface Version
PEPSM_
|
— |
HANDWHEEL Steering Control
PEPSM_
|
— |
HANDWHEEL System CCW
PEPSM_
|
— |
HANDWHEEL Temperature
PEPSM_
|
— |
LC Status
PEPSM_
|
— |
PSFAI Challenge
PEPSM_
|
— |
PSFAI Challenge Status
PEPSM_
|
— |
Show 18 more fields
| Signal | Unit |
|---|---|
PSFAI Controller Startup
PEPSM_
|
— |
PSFAI Feedback Internal
PEPSM_
|
— |
PSFAI Feedback Internal 2
PEPSM_
|
— |
PSFAI Handwheel Calibration
PEPSM_
|
— |
PSFAI Motor Calibration
PEPSM_
|
— |
PSFAI Return Target Internal
PEPSM_
|
— |
PSFAI Steering Control Internal
PEPSM_
|
— |
PSFAI Vehicle Signals
PEPSM_
|
— |
RACK System CCW
PEPSM_
|
— |
RACK System CW
PEPSM_
|
— |
SHAFTP Rear Steer Request
PEPSM_
|
— |
SHAFTP Status
PEPSM_
|
— |
SHAFTP Steering Control
PEPSM_
|
— |
SHAFTP System CW
PEPSM_
|
— |
SHAFTS Rear Steer Request
PEPSM_
|
— |
SHAFTS Steering Control
PEPSM_
|
— |
SHAFTS System CCW
PEPSM_
|
— |
SHAFTS System CW
PEPSM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PEPSM_a069.