DTC P1D81: General Description
When fail safe occurs in the power drive unit (PDU), a VCU FO signal is transmitted to the motor control module and the gate is collaboratively blocked. If the harness for VCU FO signal is disconnected, a gate signal for the traction motor / generator motor is blocked while a VCU FO signal is blocked even if any fail safe does not occur. If a VCU FO signal is continuously blocked although a VCU output permission signal (VCU EN signal) is "permitted to be output," the motor control module in the PCU detects a malfunction and stores a DTC.