Circuit/System Description

The battery charger will monitor the discharge state of the high voltage charging bus. Diagnostics and system status is communicated from the battery charger control module to the hybrid powertrain control module 2 through serial data. The hybrid powertrain control module 2 is the host controller for diagnostic trouble code (DTC) information.

The battery charger verifies the high voltage output voltage is less than 60 V within 1.5 seconds after the battery charger receives a discharge command from the hybrid powertrain control module 2.