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BMS_w015 — HW Sleep Attempt

Full alert identifier: BMS_w015_HW_Sleep_Attempt

Alert description

The complex programmable logic device (CPLD) detects a condition where it cannot go to sleep but is told to do so. The CPLD cannot go to sleep when pack contactors are closed, the high voltage interlock loop (HVIL) is on, or there is a no-sleep condition.

Potential impact

This alert is primarily informational and is used for logging purposes.

Set condition

The CPLD bit HW_Sleep_Attempt is asserted.

Clear condition

The CPLD detects that the condition clears.

Signals to check

These diagnostic fields are associated with BMS_w015. Check the alert's Payload in Service Mode Plus for available values.

Signal Unit
Blind Mate Fault BMS_a015_blindMateFault —
Bmb Fault BMS_a015_bmbFault —
Bmb Fault Diag Down BMS_a015_bmbFaultDiagDown —
Bmb Fault Diag Up BMS_a015_bmbFaultDiagUp —
Cont Hold BMS_a015_contHold —
Cont Hold Timeout BMS_a015_contHoldTimeout —
Cont Safety Override BMS_a015_contSafetyOverride —
Contactor Power Req BMS_a015_contactorPowerReq —
Show 21 more fields
Signal Unit
Contactor Prw Seq Err BMS_a015_contactorPrwSeqErr —
Contactor State BMS_a015_contactorState —
Contactors On BMS_a015_contactorsOn —
Crc Error BMS_a015_crcError —
Fast Kill Activated BMS_a015_fastKillActivated —
Fch Cont Pwr Ovr Current BMS_a015_fchContPwrOvrCurrent —
Fch Power On BMS_a015_fchPowerOn —
Hvil Bad BMS_a015_hvilBad —
Hvil Fault BMS_a015_hvilFault —
Illegal Cont Req BMS_a015_illegalContReq —
Illegal Sleep Req BMS_a015_illegalSleepReq —
Key On BMS_a015_keyOn —
Mcs Over Current BMS_a015_mcsOverCurrent —
Over Current BMS_a015_overCurrent —
Over Current Diag BMS_a015_overCurrentDiag —
Over Voltage BMS_a015_overVoltage —
Over Voltage Diag BMS_a015_overVoltageDiag —
Precharge OK BMS_a015_prechargeOK —
Sleep Timer Cal BMS_a015_sleepTimerCal —
Timer Alarm BMS_a015_timerAlarm —
Veh Can Bus Active BMS_a015_vehCanBusActive —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_w015.

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