USM_a115 — VCSEC MIA
Full alert identifier: USM_a115_VCSEC_MIA
Alert description
One or more of the messages the vehicle controller receives periodically from the vehicle security controller (VCSEC) is not received, indicating the VCSEC may be unavailable (MIA).
Potential impact
Features depending on VCSEC functionality, including vehicle security and communication with authentication devices, may be limited or unavailable.
Set condition
The vehicle controller does not receive one or more of the expected messages from the VCSEC within the expected time frame.
Clear condition
The vehicle controller starts receiving the expected messages from the VCSEC.
Signals to check
These diagnostic fields are associated with USM_a115. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
CH TPMS Display
USM_
|
— |
REM Authentication
USM_
|
— |
UI Coriander Vehicle Control
USM_
|
— |
VEH BLE Reset Request
USM_
|
— |
VEH Authentication
USM_
|
— |
VEH Requests
USM_
|
— |
VEH Requests 2
USM_
|
— |
VEH Veh Nm
USM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of USM_a115.