UI_a029 — Modem MIA
Full alert identifier: UI_a029_ModemMIA
Alert description
One or more of the messages the User Interface (UI) Electronic Control Unit (ECU) receives periodically from the cellular modem is not received, indicating the cellular modem may be unavailable (MIA).
Potential impact
The vehicle may intermittently or persistently loose cellular connectivity.
Set condition
One or more of the expected messages from the cellular modem is not received.
Clear condition
The UI ECU starts receiving the expected messages from the cellular modem.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of UI_a029.