USM_a106 — PCS MIA
Full alert identifier: USM_a106_PCS_MIA
Alert description
One or more of the messages the vehicle controller receives periodically from the power conversion system (PCS) electronic control unit (ECU) is not received, indicating the PCS ECU may be unavailable (MIA).
Potential impact
The vehicle may be unable to charge.
Set condition
One or more of the expected messages from the PCS ECU is not received.
Clear condition
The vehicle controller starts receiving the expected messages from the PCS ECU.
Signals to check
These diagnostic fields are associated with USM_a106. Check the alert's Payload in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
CH Alert Matrix
USM_
|
— |
CH Dcdc Rail Status
USM_
|
— |
VEH Dcdc Rail Status
USM_
|
— |
VEH Dcdc Status
USM_
|
— |
VEH Thermal Control
USM_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of USM_a106.