SSFA_a070 — SSFA MIA

Full alert identifier: SSFA_a070_SSFA_MIA

Alert description

One or more of the messages the vehicle controller receives periodically from the Secondary Steering Feedback Actuator (SSFA) electronic control unit (ECU) is not received, indicating the SSFA 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 SSFA ECU is not received.

Clear condition

The vehicle controller starts receiving the expected messages from the SSFA ECU.

Signals to check

These diagnostic fields are associated with SSFA_a070. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
HANDHWEEL Vehicle Estimates `SSFA_a070_HANDHWEEL_vehicleEstimates`	—
HANDWHEEL Feedback Control `SSFA_a070_HANDWHEEL_feedbackControl`	—
HANDWHEEL System CW `SSFA_a070_HANDWHEEL_systemCW`	—
HANDWHEEL Temperature `SSFA_a070_HANDWHEEL_temperature`	—
RACK System CCW `SSFA_a070_RACK_systemCCW`	—
RACK System CW `SSFA_a070_RACK_systemCW`	—
SHAFTP System CCW `SSFA_a070_SHAFTP_systemCCW`	—
SHAFTP System CW `SSFA_a070_SHAFTP_systemCW`	—

Show 10 more fields

Signal	Unit
SHAFTS Handwheel Status `SSFA_a070_SHAFTS_handwheelStatus`	—
SHAFTS System CCW `SSFA_a070_SHAFTS_systemCCW`	—
SSFAI Challenge `SSFA_a070_SSFAI_challenge`	—
SSFAI Challenge Status `SSFA_a070_SSFAI_challengeStatus`	—
SSFAI Controller Startup `SSFA_a070_SSFAI_controllerStartup`	—
SSFAI Feedback Internal `SSFA_a070_SSFAI_feedbackInternal`	—
SSFAI Handwheel Calibration `SSFA_a070_SSFAI_handwheelCalibration`	—
SSFAI Handwheel Status `SSFA_a070_SSFAI_handwheelStatus`	—
SSFAI Motor Calibration `SSFA_a070_SSFAI_motorCalibration`	—
SSFAI Vehicle Signals `SSFA_a070_SSFAI_vehicleSignals`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SSFA_a070.