12V Battery Charging System
WARNING: This page is about a different car, the 2024 Ford Transit-350 HD, 2024 Ford Transit-350, 2024 Ford Transit-250, and 2024 Ford Transit-150. However, it is still accessible from the selected car via links, so may be relevant.
The 12V battery is charged by the DC / DC converter control module. The BMS continuously monitors the battery state of charge condition and provides the BCM with this information. The BCM communicates this information to the PCM over the HS-CAN1. The PCM communicates the battery desired setpoint to the DC / DC converter control module which supplies the necessary charge voltage to the 12V battery. For more information, Refer to: Direct Current/Direct Current (DC/DC) Converter Control Module - Electric .