POWER DISTRIBUTION SYSTEMS
TABLE OF CONTENTS
page page
DESCRIPTION AND OPERATION
POWER DISTRIBUTION SYSTEM.............1
POWER DISTRIBUTION CENTER (PDC) .......1
JUNCTION BLOCK (JB) ....................2
REMOVAL AND INSTALLATION
JUNCTION BLOCK (JB) ....................3
POWER DISTRIBUTION CENTER .............3
DESCRIPTION AND OPERATION
POWER DISTRIBUTION SYSTEM
DESCRIPTION
This group covers the various standard and
optional power distribution components used on this
model. Refer to the Component Index of Group 8W -
Wiring Diagrams for complete circuit diagrams of the
various power distribution components.
OPERATION
The power distribution system for this vehicle is
designed to provide safe, reliable, centralized and
convenient to access distribution of the electrical cur-
rent required to operate all of the many standard
and optional factory-installed electrical and electronic
powertrain, chassis, safety, comfort and convenience
systems. At the same time, these systems were
designed to provide centralized locations for conduct-
ing diagnosis of faulty circuits, and for sourcing the
additional current requirements of many aftermarket
vehicle accessory and convenience items.
These power distribution systems also incorporate
various types of circuit control and protection fea-
tures, including:
• Fuses
• Fuse cartridges
• Fusible links
• Automatic resetting circuit breakers
• Relays
• Flashers
• Timers
• Circuit splice blocks.
The power distribution system for this vehicle con-
sists of the following components:
• Power Distribution Center (PDC)
• Junction Block (JB)
• Accessory power outlet.
Following are general descriptions of the major
components in the power distribution system. Refer
to the owner’s manual in the vehicle glove box for
more information on the features, use and operation
of all of the power distribution system components.
POWER DISTRIBUTION CENTER (PDC)
DESCRIPTION
All of the electrical current distributed throughout
this vehicle is directed through the standard equip-
ment Power Distribution Center (PDC). The molded
plastic PDC housing is located in the left front corner
of the engine compartment, just in front of the cool-
ant reservoir bottle. The PDC housing has a molded
plastic cover. The PDC cover is easily removed for
service access and has a convenient fuse and relay
layout label affixed to the inside surface of the cover
to ensure proper component identification. The PDC
housing is secured in the engine compartment by one
screw to the rear of the PDC and two clips on the
Fig. 1 Power Distribution Center Location
1 – POWER DISTRIBUTION CENTER
2 – LEFT FRONT FENDER
3 – LEFT FRONT HEADLAMP
LH POWER DISTRIBUTION SYSTEMS 8O - 1
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