Circuit/System Description

The accessory DC power control module supplies the energy that flows between the high voltage, 300 volt, direct current (DC) and intermediate voltage, 42 volt, DC to support the electric power steering . The accessory DC power control module receives a 42 volt enable command from the hybrid powertrain control module over serial data. 42 volt accessory DC power control module functions will run only when the 42 volt accessory DC power control module enable is active on serial data.