Power Distribution Center Removal And Installation - Jeep Cherokee 2000 Service Manual

8O - 4 POWER DISTRIBUTION SYSTEMS
DESCRIPTION AND OPERATION (Continued)
access panel for easy removal, and a fuse puller and
spare fuse holders are located on the back of the fuse
access panel.
The JB unit cannot be repaired and is only ser-
viced as an assembly. If any internal circuit or the JB
housing is faulty or damaged, the entire JB unit
must be replaced.
OPERATION
All of the circuits entering and leaving the JB do
so through up to ten wire harness connectors, which
are connected to the JB through integral connector
receptacles molded into the JB housing. Internal con-
nection of all of the JB circuits is accomplished by an
intricate combination of hard wiring and bus bars.
Refer to Junction Block in the index of this service
manual for the location of complete JB circuit dia-
grams.
REMOVAL AND INSTALLATION
POWER DISTRIBUTION CENTER
The Power Distribution Center (PDC) main hous-
ing unit, the PDC fuse wedges, the PDC fuse cassette
and the PDC bus bars cannot be repaired and are
only serviced as a unit with the headlamp and dash
wire harness. If the PDC main housing unit, the fuse
wedge, the fuse cassette or the bus bars are faulty or
damaged, the entire PDC and headlamp and dash
wire harness unit must be replaced.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Disconnect each of the headlamp and dash wire
harness connectors. Refer to Connector Locations
in the index of this service manual for the location of
more information on the headlamp and dash wire
harness connector locations.
(3) Remove all of the fasteners that secure each of
the headlamp and dash wire harness ground eyelets
to the vehicle body and chassis components. Refer to
Connector Locations in the index of this service
manual for the location of more information on the
ground eyelet locations.
(4) Disengage each of the retainers that secure the
headlamp and dash wire harness to the vehicle body
and chassis components. Refer to Connector Loca-
tions in the index of this service manual for the loca-
tion of more information on the headlamp and dash
wire harness retainer locations.
(5) Unlatch and remove the B(+) terminal stud
cover from the end of the PDC (Fig. 4).
(6) Remove the nut that secures the eyelets of the
battery wire harness PDC take outs to the PDC B(+)
terminal stud.
Fig. 4 Power Distribution Center Connections
1 – COVER
2 – NUT
3 – POWER DISTRIBUTION CENTER
4 – BATTERY
5 – BATTERY WIRE HARNESS PDC TAKE-OUTS
(7) Remove the battery wire harness PDC take out
eyelets from the B(+) terminal stud.
(8) Disengage the latches on the PDC mounting
bracket from the tabs on the PDC housing, and pull
the PDC housing upward to disengage the mounting
slots from the stanchions of the mounting bracket
(Fig. 5).
(9) Remove the PDC and the headlamp and dash
wire harness from the engine compartment as a unit.
(10) Remove the two screws that secure the PDC
mounting bracket to the right front inner fender (Fig.
6).
(11) Remove the PDC mounting bracket from the
right front inner fender.
INSTALLATION
NOTE: If the PDC is being replaced with a new unit,
be certain to transfer each of the fuses and relays
from the faulty PDC to the proper cavities of the
replacement PDC. Refer to Power Distribution in the
index of this service manual for the location of
complete PDC circuit diagrams and cavity assign-
ments.
(1) Position the PDC mounting bracket onto the
right front inner fender.
(2) Install and tighten the two screws that secure
the PDC mounting bracket to the right front inner
fender. Tighten the screws to 8.1 N·m (72 in. lbs.).
XJ