APS_w283 — Psfa Mia
Full alert identifier: APS_w283_psfaMia
Alert description
One or more of the messages the Autopilot Processor Secondary (APS) 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
Autopilot features will be unavailable.
Set condition
APS does not receive PSFA messages for more than 10 messages.
Clear condition
APS starts receiving messages from PSFA.
Signals to check
These diagnostic fields are associated with APS_w283. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Psfa Status
APS_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of APS_w283.