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HVREX_a391 — Trex Bus Off

Full alert identifier: HVREX_a391_TrexBusOff

Alert description

The Range Extender (TREX) bus is in the BusOff state.

Potential impact

The TREX bus is unable to communicate with other components.

Set condition

TREX bus is experiencing a condition affecting its functionality, causing it to enter the BusOff state.

Clear condition

The TREX bus state is stable and no longer in BusOff.

Signals to check

These diagnostic fields are associated with HVREX_a391. Check the alert's Alert Log in Service Mode Plus for available values.

Signal Unit
Last Error Code HVREX_a391_lastErrorCode
0
NO ERROR
1
STUFF ERROR
2
FORM ERROR
3
ACK ERROR
4
BIT1 ERROR
5
BIT0 ERROR
6
CRC ERROR
7
NO CHANGE
—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of HVREX_a391.

Browse all HVREX alert codes