SDCR_a019 — Historical Fault Currents

Full alert identifier: SDCR_a019_historicalFaultCurrents

Alert description

Secondary Disconnect Controller (SDC) detected abnormal electrical currents during a previous power-ON state. Data retrieved from Electrically Erasable Programmable Read-Only Memory (EEPROM).

Potential impact

Drive unit may not be functional due to previous electrical condition.

Set condition

Sets when SDC detects abnormal electrical currents while Drive Inverter (DI) is not switching as expected during a previous power cycle.

Clear condition

Clears when SDC completes successful power-ON self-test.

Signals to check

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal	Unit
Avg Ia `SDCR_a019_avgIa`	A
Avg Ib `SDCR_a019_avgIb`	A
Max Abs Currents `SDCR_a019_maxAbsCurrents`	A
Max Abs Elc Speed `SDCR_a019_maxAbsElcSpeed`	Hz

Signal	Unit
Fault Reason Fault Currents At Speed `SDCR_a019_faultReason_faultCurrentsAtSpeed`	—
Fault Reason Propagating 3 PS `SDCR_a019_faultReason_propagating3PS`	—
Fault Reason Unmitigated UCR `SDCR_a019_faultReason_unmitigatedUCR`	—
Imbalance Seen `SDCR_a019_imbalanceSeen`	—
Phase Voltage Present `SDCR_a019_phaseVoltagePresent`	—
Speed From Voltage `SDCR_a019_speedFromVoltage`	—
Speed Was Valid `SDCR_a019_speedWasValid`	—
Transient Handling `SDCR_a019_transientHandling` 0 ALL SKIPPED 1 SKIPPED 3PS 2 3PS EARLY EXIT 3 3PS WAITED	—

Show 1 more field

Signal	Unit
Ucr Seen `SDCR_a019_ucrSeen`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of SDCR_a019.