PSFA_a071 — SEPS MIA
Full alert identifier: PSFA_a071_SEPS_MIA
Alert description
One or more of the messages the vehicle controller receives periodically from the Secondary Electric Power Steering (SEPS) electronic control unit (ECU) is not received, indicating the SEPS ECU may be unavailable (MIA).
Potential impact
Power steering may be limited or unavailable.
Set condition
One or more of the expected messages from the SEPS ECU is not received.
Clear condition
The vehicle controller starts receiving the expected messages from the SEPS ECU.
Signals to check
These diagnostic fields are associated with PSFA_a071. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
HANDWHEEL Rack Control
PSFA_
|
— |
HANDWHEEL Rear Steer Status
PSFA_
|
— |
HANDWHEEL Steering Control
PSFA_
|
— |
HANDWHEEL System CCW
PSFA_
|
— |
HANDWHEEL System CW
PSFA_
|
— |
LC System CW
PSFA_
|
— |
RACK Cross Check Id
PSFA_
|
— |
RACK Rack Control
PSFA_
|
— |
Show 23 more fields
| Signal | Unit |
|---|---|
RACK Rack Status
PSFA_
|
— |
RACK Rack Status 2
PSFA_
|
— |
RACK Steering Control
PSFA_
|
— |
RACK System CCW
PSFA_
|
— |
RACK Temperature
PSFA_
|
— |
RACK Vehicle Estimates
PSFA_
|
— |
RC System CW
PSFA_
|
— |
SEPSI TMR Angle Sensor Calibration 1
PSFA_
|
— |
SEPSI TMR Angle Sensor Calibration 2
PSFA_
|
— |
SEPSI Challenge
PSFA_
|
— |
SEPSI Challenge Status
PSFA_
|
— |
SEPSI Controller Startup
PSFA_
|
— |
SEPSI Handwheel Calibration
PSFA_
|
— |
SEPSI Motor Calibration
PSFA_
|
— |
SEPSI Position Detect
PSFA_
|
— |
SEPSI Rack Calibration
PSFA_
|
— |
SEPSI Vehicle Signals
PSFA_
|
— |
SHAFTP System CCW
PSFA_
|
— |
SHAFTP System CW
PSFA_
|
— |
SHAFTS Status
PSFA_
|
— |
SHAFTS Steering Control
PSFA_
|
— |
SHAFTS System CW
PSFA_
|
— |
SHAFTS Vehicle Estimates
PSFA_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PSFA_a071.