Circuit Description
If a DTC of the motor line is stored, the VSC No. 2 relay cuts off the power supply to the VSC No. 1 relay and performs fail-safe.
While any of the ABS, TRAC, VSC, or BA is operating, the skid control ECU (housed in the ABS & TRACTION actuator assy) turns the VSC No. 2 relay on and activates the pump motor in the ABS & TRACTION actuator. This code may be stored if the motor relay (+BM) voltage becomes lower than the DTC detecting condition due to insufficient output from the battery or alternator.