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PSFA_a144 — Swt Self Test Fault

Full alert identifier: PSFA_a144_swtSelfTestFault

Alert description

The self test procedure for the Software Watchdog Timer (SWT) module of the microcontroller run by the bootloader after a destructive reset failed.

Potential impact

Compromised system reliability due to potential failure to recover from unresponsive fault conditions such as system lock-up

Set condition

SWT self test procedure after destructive reset failed

Clear condition

SWT self test procedure after destructive reset successful

Signals to check

These diagnostic fields are associated with PSFA_a144. Check the alert's Alert Log in Service Mode Plus for available values.

Signal Unit
Failure Type PSFA_a144_failureType
0
UNKNOWN
1
NONE
2
SWT MALFUNCTION
3
FCCU MALFUNCTION
4
RESET TYPE
5
PREMATURE RESET
—
Swt 0 Result PSFA_a144_swt0Result —
Swt 0 Result Valid PSFA_a144_swt0ResultValid —
Swt 2 Result PSFA_a144_swt2Result —
Swt 2 Result Valid PSFA_a144_swt2ResultValid —
Test Data Valid PSFA_a144_testDataValid —
Test State Valid PSFA_a144_testStateValid —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of PSFA_a144.

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