SEPSM_a071 — SEPS MIA
Full alert identifier: SEPSM_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 SEPSM_a071. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
HANDWHEEL Rack Control
SEPSM_
|
— |
HANDWHEEL Rear Steer Status
SEPSM_
|
— |
HANDWHEEL Steering Control
SEPSM_
|
— |
HANDWHEEL System CCW
SEPSM_
|
— |
HANDWHEEL System CW
SEPSM_
|
— |
LC System CW
SEPSM_
|
— |
RACK Cross Check Id
SEPSM_
|
— |
RACK Rack Control
SEPSM_
|
— |
Show 23 more fields
| Signal | Unit |
|---|---|
RACK Rack Status
SEPSM_
|
— |
RACK Rack Status 2
SEPSM_
|
— |
RACK Steering Control
SEPSM_
|
— |
RACK System CCW
SEPSM_
|
— |
RACK Temperature
SEPSM_
|
— |
RACK Vehicle Estimates
SEPSM_
|
— |
RC System CW
SEPSM_
|
— |
SEPSI TMR Angle Sensor Calibration 1
SEPSM_
|
— |
SEPSI TMR Angle Sensor Calibration 2
SEPSM_
|
— |
SEPSI Challenge
SEPSM_
|
— |
SEPSI Challenge Status
SEPSM_
|
— |
SEPSI Controller Startup
SEPSM_
|
— |
SEPSI Handwheel Calibration
SEPSM_
|
— |
SEPSI Motor Calibration
SEPSM_
|
— |
SEPSI Position Detect
SEPSM_
|
— |
SEPSI Rack Calibration
SEPSM_
|
— |
SEPSI Vehicle Signals
SEPSM_
|
— |
SHAFTP System CCW
SEPSM_
|
— |
SHAFTP System CW
SEPSM_
|
— |
SHAFTS Status
SEPSM_
|
— |
SHAFTS Steering Control
SEPSM_
|
— |
SHAFTS System CW
SEPSM_
|
— |
SHAFTS Vehicle Estimates
SEPSM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SEPSM_a071.