14V Power Module
WARNING: This page is about a different car, the 2017 GMC Sierra 1500 and 2017 Chevrolet Silverado 1500. However, it is still accessible from the selected car via links, so may be relevant.
Location
The 14V power module is a non-serviceable device that is part of the generator control module.
Operating Functions
The 14V power module is the device which converts high voltage (86V) DC to low voltage (12V) DC for accessory electrical operation and to charge the 12 volt accessory battery. The 14V power module will typically charge the 12 volt system at approximately 14.5 volts with a max power output of 1800 watts. The 14V power module is not programmable.