DPB_a310 — DIR Axle Torque Invalid
Full alert identifier: DPB_a310_DIRAxleTorqueInvalid
Alert description
Invalid Drive Inverter Rear (DIR) drive torque signal or qualifier (QF) is received.
Potential impact
The Decoupled Power Brake (DPB) may not generate brake torque requested by DI_brakeTorqueCommandFull and instead generate brake torque requested by DI_brakeTorqueCommand. There may be an issue with the transmitting Electronic Control Unit (ECU).
Set condition
The Decoupled Power Brake (DPB) receives either the DIR_torqueActual Controller Area Network (CAN) signal as Signal Not Available (SNA) or the DIR_axleTorqueQF CAN signal as INVALID or FAULTED for longer than 100 milliseconds.
Clear condition
Valid DIR_torqueActual and Valid DIR_axleTorqueQF are received for 100 milliseconds.
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DPB_a310.