Accessory DC Power Control Module Description and Operation
The 14 V Power Module, also called the Accessory DC Power Control Module, is located in the rear trunk compartment underneath the floor stowage trim panel. It is attached to the chassis with four fasteners and connected to a plastic cooling duct. The 14 V Power Module has a high-voltage pigtail that passes through the floor of the rear compartment and connects to a high voltage cable that comes from the hybrid battery pack. Also connected to the 14 V Power Module are the 12 V cables + positive and - negative, and a signal connector for serial data.
The 14 V Power Module is an electronic device that takes the place of the generator on a traditional vehicle.
On a hybrid or electric vehicle the 14 V power module converts high voltage (300 V) direct current (DC) to low voltage (12 V) DC for accessory electrical operation and to charge the 12 volt battery.
Normally, the 14 V power module only supplies 12 volts DC when the vehicle is under a normal drive cycle. However there are certain instances when the vehicle is being charged through a standard wall socket where the14 V power module operation is required to sustain the 12 volt battery.
The 14 V power module is capable of supplying up to 180 Amps of 12 volt DC.