Power and Ground Distribution: Description and Operation
POWER DISTRIBUTIONThis section describes the power distribution components used on this model as well as the methods in which battery voltage and charging system voltage is distributed throughout the vehicle.
The power distribution system for this vehicle consists of the following major components which are covered in further detail elsewhere:
- Power Distribution Center (PDC)
- Fuseblock module
- Relay center and fuse block
The power distribution system also incorporates various types of circuit control and protection features, including:
- Automatic resetting circuit breakers
- Blade-type fuses
- Cartridge fuses
- Relays
Following are general descriptions and theory of operation for the major components in the power distribution system. Refer to Wiring for the location of complete circuit diagrams for the various power distribution system components.
The power distribution system for this vehicle is designed to provide safe, reliable, and centralized distribution points for the electrical current required to operate all of the standard and optional factory-installed electrical and powertrain, chassis, safety, security and convenience systems. At the same time, the power distribution system was designed to provide easy access to these electrical distribution points for the vehicle technician to use when conducting diagnosis and repair of faulty circuits. The power distribution system can also prove useful for the addition of electrical circuits that may be required to operate accessories that the vehicle owner may choose to have installed in the aftermarket.