Circuit/System Description

The 14V power module, often referred to as the accessory DC power control module, monitors its 14-volt circuit when it is enabled. This DTC sets when the 14-volt circuit in the 14V power module is below this minimum level at the time it is enabled. 14V power module functions will run only when a 14V power module enable message from the hybrid/EV powertrain control module 1 is active on the serial data circuit.