Commander 4WD V8-4.7L Flex Fuel (2009)
Relay Box: Description and Operation
Power Distribution Center (PDC) - Description
DESCRIPTION
The electrical current distributed throughout this vehicle is directed through the Power Distribution Center (PDC) (1) and Integrated Power Module
(IPM) (2). The power distribution center is located in the left front corner of the engine compartment, between the IPM and the brake master cylinder.
The power distribution center houses maxi-type cartridge fuses, which replace most in-line fusible links. Some fusible links still exist in the electrical
harness depending on powertrain combination. The power distribution center also houses blade-type mini fuses, and International Standards
Organization (ISO) relays.
The power distribution center housing is secured in the engine compartment at three points. Integral mounts on both sides of the power distribution
center housing engage and latch to stanchions that are integral to the molded plastic support bracket. The power distribution center is integral to the
headlamp and dash wire harness, which exits from the bottom of the power distribution center housing. The power distribution center housing has a
molded plastic cover that includes two integral latches and pivot hooks that snap over a hinge pin on the side of the power distribution center housing.
The power distribution center cover is easily opened or removed for service access and has a convenient fuse and relay layout map integral to the inside
surface of the cover to ensure proper component identification.
The power distribution center cannot be repaired and is only serviced as a unit with the headlamp and dash wire harness. If the power distribution center
main housing unit, fuse wedges or the bus bars are inoperative or damaged, the complete headlamp and dash wire harness unit must be replaced.
