2003 JEEP GRAND CHEROKEE Prop

8W-91 CONNECTOR/GROUND/SPLICE LOCATION
TABLE OF CONTENTS
page
CONNECTOR/GROUND/SPLICE LOCATION
DESCRIPTION..........................1
CONNECTOR/GROUND/SPLICE
LOCATION
DESCRIPTION
This section provides illustrations identifying con-
nector, ground, and splice locations in the vehicle.Connector, ground, and splice indexes are provided.
Use the wiring diagrams in each section for connec-
tor, ground, and splice identification. Refer to the
appropriate index for the proper figure number. For
items that are not shown in this section N/S is placed
in the Fig. column.
CONNECTORS
CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
A/C Compressor Clutch BK At A/C Compressor 9, 13
A/C Pressure Transducer BK Right Front of Engine Compartment 3, 4, 5
Accelerator Pedal Position
Sensor (Diesel)BK Rear of Engine Compartment Near
Fuel/Water Seperator7
Adjustable Pedals Module
(Except Built-up Export)GN Above Drivers Control Pedals N/S
Adjustable Pedals Motor/
Sensor Assembly (Except
Built-up Export)Above Drivers Control Pedals N/S
Adjustable Pedals Switch WT Drivers Lower Kick Panel 21
Airbag Control Module (ORC)
C1YL Below Center Floor Console, Near
Park Brake19, 20, 21, 22
Airbag Control Module (ORC)
C2YL Below Center Floor Console, Near
Park Brake19, 20, 21, 22
Ambient Temperature Sensor BK On Radiator Center Support 5
Antenna Module (Built-up-
export)WT Above Right Quarter Window N/S
Ash Receiver Lamp BK Below Cigarette Lighter 19, 20
Automatic Day/Night Mirror BK In Front of Rear View Mirror N/S
Automatic Headlamp Light
Sensor/VTSS LEDBK Near Left Instrument Panel Speaker 19, 20
Automatic Zone Control
Module - C1 (AZC)WT Left Side of HVAC Housing N/S
Automatic Zone Control
Module - C2 (AZC)WT Left Side of HVAC Housing N/S
Battery Temperature Sensor BK Below Battery Tray 4, 5
Blower Motor BK Behind Right Hand Side of
Instrument PanelN/S
WJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 1

of the preparation procedures performed just prior to
new vehicle delivery.
The PDC has a molded plastic cover that can be
removed to provide service access to all of the fuses
and relays in the PDC. An integral latch and hinges
are molded into the PDC cover for easy removal. A
fuse layout map is integral to the underside of the
PDC cover to ensure proper fuse and relay identifica-
tion. The IOD fuse is a 50 ampere maxi-type car-
tridge fuse and, when removed, it is stored in a spare
fuse cavity within the PDC.
OPERATION
The term ignition-off draw identifies a normal con-
dition where power is being drained from the battery
with the ignition switch in the Off position. The IOD
fuse feeds the memory and sleep mode functions for
some of the electronic modules in the vehicle as well
as various other accessories that require battery cur-
rent when the ignition switch is in the Off position,
including the clock. The only reason the IOD fuse is
removed is to reduce the normal IOD of the vehicle
electrical system during new vehicle transportation
and pre-delivery storage to reduce battery depletion,
while still allowing vehicle operation so that the
vehicle can be loaded, unloaded and moved as needed
by both vehicle transportation company and dealer
personnel.
The IOD fuse is removed from PDC fuse cavity 15
when the vehicle is shipped from the assembly plant.
Dealer personnel must install the IOD fuse when the
vehicle is being prepared for delivery in order to
restore full electrical system operation. Once the
vehicle is prepared for delivery, the IOD function of
this fuse becomes transparent and the fuse that has
been assigned the IOD designation becomes only
another Fused B(+) circuit fuse. The IOD fuse serves
no useful purpose to the dealer technician in the ser-
vice or diagnosis of any vehicle system or condition,
other than the same purpose as that of any other
standard circuit protection device.
The IOD fuse can be used by the vehicle owner as
a convenient means of reducing battery depletion
when a vehicle is to be stored for periods not toexceed about thirty days. However, it must be
remembered that removing the IOD fuse will not
eliminate IOD, but only reduce this normal condition.
If a vehicle will be stored for more than about thirty
days, the battery negative cable should be discon-
nected to eliminate normal IOD; and, the battery
should be tested and recharged at regular intervals
during the vehicle storage period to prevent the bat-
tery from becoming discharged or damaged. Refer to
Battery Systemfor additional service information.
REMOVAL
The Ignition-Off Draw (IOD) fuses normal installa-
tion location is cavity 15 in the power distribution
center. When the vehicle is shipped from the assem-
bly plant the fuse is removed to maintain proper bat-
tery voltage during vehicle storage (in some cases).
Dealer personnel must install the IOD fuse when the
vehicle is being prepared for customer delivery in
order to restore full electrical system operation.
(1) Turn the ignition switch to the Off position.
(2) Unlatch and open the cover of the power distri-
bution center.
(3) Remove the IOD fuse from fusecavity 15of
the power distribution center (Fig. 2).
(4) Store the removed IOD fuse by installing it in
the unused fuse storagecavity 11of the PDC (Fig.
2).
(5) Close and latch the power distribution center
cover.
INSTALLATION
(1) Be certain the ignition switch is in the Off posi-
tion.
(2) Unlatch and open the cover of the power distri-
bution center.
(3) Remove the stored IOD fuse from fuse storage
cavity 11of the power distribution center.
(4) Use a thumb to press the IOD fuse firmly down
into power distribution center fusecavity 15.
(5) Close and latch the power distribution center
cover.
8W - 97 - 4 8W-97 POWER DISTRIBUTIONWJ
IOD FUSE (Continued)

JUNCTION BLOCK
DESCRIPTION
An electrical Junction Block (JB) is concealed
beneath the driver side of the instrument panel in
the passenger compartment of the vehicle (Fig. 3).
The JB combines the functions previously provided
by a separate fuseblock module and relay center. The
JB serves to simplify and centralize numerous elec-
trical components, as well as to distribute electrical
current to many of the accessory systems in the vehi-
cle. It also eliminates the need for numerous splice
connections. The JB houses up to thirty-three blade-
type mini fuses, up to two blade-type automatic
resetting circuit breakers, the electronic combination
flasher, the Daytime Running Lamp (DRL) module
(Canada only) and up to twelve International Stan-
dards Organization (ISO) relays (three standard-type
and nine micro-type). The JB also incorporates an
integral connector and mounting for the Body Con-
trol Module (BCM). The BCM is secured with four
screws directly to the dash panel side of the JB.
Refer toBody Control Modulein Electronic Con-
trol Modules for additional information covering the
BCM.
The molded plastic JB housing has integral mounts
that are secured with two screws and two snap
retainers to the instrument panel steering column
support bracket behind the instrument panel steer-ing column opening cover. The JB is concealed above
the molded plastic instrument panel fuse cover. Inte-
gral latches molded into the fuse cover secure it the
JB, the BCM and the 16-way data link connector tab
of the instrument panel steering column support
bracket. The fuse cover can be pulled downward to
disengage the latches and provide service access to
all of the fuses, relays and wire harness connectors of
the JB. The fuse cover has a fuse puller and spare
fuses secured to its upper surface. Refer toInstru-
ment Panel Fuse Coverin Body for additional ser-
vice information.
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. The BCM is available for separate
service replacement.
OPERATION
All of the circuits entering and leaving the Junc-
tion Block (JB) do so through up to five wire harness
connectors, which are connected to the JB through
integral connector receptacles molded into the JB
housing. Internal connection of all of the JB circuits
is accomplished by a printed circuit board. There are
also two separate wire harness connections to con-
nector receptacles that are integral to the BCM.
Refer toJunction Blockin Wiring Diagrams for
additional information and the location of complete
JB circuit diagrams.
REMOVAL
WARNING: DISABLE THE AIRBAG SYSTEM
BEFORE ATTEMPTING ANY STEERING WHEEL,
STEERING COLUMN, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. DISCON-
NECT AND ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE, THEN WAIT TWO MINUTES FOR
THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE
BEFORE PERFORMING FURTHER DIAGNOSIS OR
SERVICE. THIS IS THE ONLY SURE WAY TO DIS-
ABLE THE AIRBAG SYSTEM. FAILURE TO TAKE
THE PROPER PRECAUTIONS COULD RESULT IN
ACCIDENTAL AIRBAG DEPLOYMENT AND POSSI-
BLE PERSONAL INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the fuse cover from the bottom of the
Junction Block (JB).
(3) Remove the steering column opening cover
from the instrument panel. Refer toSteering Col-
umn Opening Coverin Body for the location of
steering column opening cover removal procedures.
Fig. 3 Junction Block Location
1 - REAR LATCHES
2 - JUNCTION BLOCK AND BODY CONTROL MODULE UNIT
3 - INSTRUMENT PANEL FUSE COVER
4 - SIDE LATCH
5 - FRONT LATCHES
WJ8W-97 POWER DISTRIBUTION 8W - 97 - 5

(4) Reach behind the JB to disconnect the two
instrument panel wire harness connectors from the
Body Control Module (BCM) connector receptacles
located near the bottom of the JB (Fig. 4).
(5) Reach behind the JB to remove the screw that
secures the instrument panel wire harness bulkhead
connector to the connector receptacle located near the
top of the JB and disconnect the connector.
(6) Disconnect the fused B(+) and the IOD wire
harness connectors from the connector receptacles
located near the bottom of the JB (Fig. 5).
(7) Remove the screws that secure the right and
left body wire harness bulkhead connectors to the
connector receptacles located near the center of the
JB and disconnect the connectors.
(8) Remove the two screws that secure the JB to
the instrument panel steering column support
bracket (Fig. 6).
(9) To disengage the two snap clips that secure the
top of the JB to the instrument panel steering col-
umn support bracket, grasp the bottom of the junc-
tion block firmly with both hands and pull it
downward sharply.
(10) Remove the JB from the instrument panel
steering column support bracket.
INSTALLATION
NOTE: If the Junction Block (JB) is being replaced
with a new unit, be certain to transfer each of the
optional fuses, circuit breakers and relays from thefaulty JB to the proper cavities of the replacement
JB. Refer to Junction Block in Wiring Diagrams for
the location of complete circuit diagrams and cavity
assignments for the JB. The Body Control Module
(BCM) must also be transferred to the new JB.
Refer to Body Control Module in Electronic Control
Modules for the location of the BCM removal and
installation procedures.
(1)
Position the JB into its mounting location on the
instrument panel steering column support bracket.
(2) Align the snap clips at the top of the JB with
the mounting holes in the instrument panel steering
column support bracket.
(3) Grasp the bottom of the JB firmly with both
hands and push it upward sharply to engage the two
snap clips that secure the top of the JB to the instru-
ment panel steering column support bracket.
(4)
Install and tighten the two screws that secure the
JB to the instrument panel steering column support
bracket. Tighten the screws to 2.2 N´m (20 in. lbs.).
Fig. 4 Junction Block Connections
1 - SCREW
2 - JUNCTION BLOCK
3 - BULKHEAD CONNECTOR
4 - BODY CONTROL MODULE
5 - INSTRUMENT PANEL WIRE HARNESS CONNECTORS
Fig. 5 Junction Block Connections
1 - SNAP CLIPS
2 - SCREW
3 - CONNECTOR
4 - LEFT BODY WIRE HARNESS
5 - IOD CONNECTOR
6 - FUSED B+ CONNECTOR
7 - RIGHT BODY WIRE HARNESS
8 - SCREW
9 - CONNECTOR
10 - JUNCTION BLOCK
8W - 97 - 6 8W-97 POWER DISTRIBUTIONWJ
JUNCTION BLOCK (Continued)

(5) Reconnect the right and left body wire harness
bulkhead connectors to the connector receptacles
located near the center of the JB.
(6) Install and tighten the screws that secure the
right and left body wire harness bulkhead connectors
to the connector receptacles located near the center
of the JB. Tighten the screws to 2.2 N´m (20 in. lbs.).
(7) Reconnect the fused B(+) and the IOD wire
harness connectors to the connector receptacles
located near the bottom of the JB.
(8) Reach behind the JB to reconnect the instru-
ment panel wire harness bulkhead connector to the
connector receptacle located near the top of the JB.
(9) Install and tighten the screw that secures the
instrument panel wire harness bulkhead connector to
the connector receptacle located near the top of the
JB. Tighten the screw to 2.2 N´m (20 in. lbs.).
(10)
Reach behind the JB to reconnect the two
instrument panel wire harness connectors to the BCM
connector receptacles located near the bottom of the JB.
(11) Install the steering column opening cover onto
the instrument panel. Refer toSteering Column
Opening Coverin Body for the location of the steer-
ing column opening cover installation procedures.
(12)
Install the fuse cover onto the bottom of the JB.
(13) Reconnect the battery negative cable.
POWER DISTRIBUTION
CENTER
DESCRIPTION
All of the electrical current distributed throughout
this vehicle is directed through the standard equip-ment Power Distribution Center (PDC) (Fig. 7). The
molded plastic PDC housing is located in the right
front corner of the engine compartment, between the
battery and the right front inner fender shield. The
PDC houses up to fifteen maxi-type cartridge fuses,
which replace all in-line fusible links. The PDC also
houses up to thirteen blade-type mini fuses, and up
to ten International Standards Organization (ISO)
relays (two standard-type and eight micro-type).
The PDC housing is secured in the engine compart-
ment at three points. Integral mounts on both sides of
the PDC housing engage and latch to stanchions that
are integral to the molded plastic battery support. The
PDC is integral to the right headlamp and dash wire
harness, which exits from the bottom of the PDC hous-
ing. The PDC housing has a molded plastic cover that
includes two integral latches at the front and pivot
hooks at the back that snap over a hinge pin on the
rear of the PDC housing. The PDC cover is easily
opened or removed for service access and has a conve-
nient fuse and relay layout map integral to the inside
surface of the cover to ensure proper component identi-
fication. A fuse puller is also stored on the inside of the
PDC cover.
The PDC cover, the PDC housing lower cover, the
PDC relay wedges, the PDC relay cassettes and the
PDC B(+) terminal stud module are available for ser-
vice replacement. The PDC main housing unit, the
fuse wedges and the bus bars cannot be repaired and
Fig. 6 Junction Block
1 - SCREW (2)
2 - DRIVER SIDE COURTESY LAMP
3 - JUNCTION BLOCK
4 - 16 WAY DATA LINK CONNECTOR
Fig. 7 Power Distribution Center Location
1 - RIGHT FENDER
2 - BATTERY
3 - POWER DISTRIBUTION CENTER
4 - COVER
WJ8W-97 POWER DISTRIBUTION 8W - 97 - 7
JUNCTION BLOCK (Continued)

CAUTION: Do not remove the wiring and terminals
from the terminal cavities of the faulty PDC relay
cassette at this time. Refer to the Assembly proce-
dure that follows for the proper procedures for
transferring the wiring and terminals to the replace-
ment PDC relay cassette.
ASSEMBLY
POWER DISTRIBUTION CENTER ASSEMBLY
PDC B(+) TERMINAL MODULE INSTALLATION
(1) From the bottom of the PDC housing, align and
insert the B(+) terminal module into the PDC.
(2) From the bottom of the PDC housing, align and
insert the two studs of the PDC B(+) terminal mod-
ule through the bus bar in the PDC.
(3) From the bottom of the PDC housing, press the
B(+) terminal module gently and evenly into the PDC
until both of the latches are fully engaged.
(4) Install the PDC housing lower cover.
RELAY WEDGE INSTALLATION
(1) From the top of the PDC housing, align and
insert the PDC relay wedge latch arms into the cor-
rect cavities in the relay cassette.
(2) Gently and evenly press the PDC relay wedge
down into the relay cassette until both of the latches
are fully engaged.
(3) Install each of the removed relays into the
proper cavities of the PDC relay wedge.
(4) Install the PDC housing lower cover.
RELAY CASSETTE INSTALLATION
(1) Move the faulty PDC relay cassette with its
wiring away from the bottom of the PDC housing far
enough to allow the replacement relay cassette to be
installed into the PDC.
(2) Using the faulty relay cassette as a guide, be
certain that the replacement relay cassette is cor-
rectly oriented before installing it into the PDC hous-
ing.
(3) From the bottom of the PDC housing, align and
insert the replacement relay cassette into the PDC.
Press the relay cassette up into the PDC until both
of the latches are fully engaged.
CAUTION: Proper care must be taken to be certain
that the wiring and terminals from the faulty PDC
relay cassette are installed in the correct terminal
cavities of the replacement relay cassette. To pre-
vent mistakes it is recommended that the wiring
and terminals be removed from the faulty relay cas-
sette one cavity at a time, repaired or spliced as
necessary, then installed securely into the correctcavity of the replacement relay cassette. If you are
not absolutely certain into which cavity a terminal
should be installed, refer to Power Distribution in
the index of this service manual for the location of
complete circuit diagrams covering the PDC.
(4) While pulling gently on the wire from the bot-
tom of the faulty PDC relay cassette, use a terminal
pick tool (Special Tool Kit 6680) from the top of the
relay cassette to release the latch that secures the
terminal in the relay cassette terminal cavity (Fig.
14).
(5) From the bottom of the faulty PDC relay cas-
sette, remove the wire and terminal from the relay
cassette terminal cavity.
(6) Make all necessary repairs and splices to the
wire for the removed terminal. Refer toWiring
Repairin Wiring Diagrams for the location of the
wiring repair procedures.
(7) From the bottom of the PDC housing, align and
insert the removed wire and terminal into the correct
terminal cavity of the replacement relay cassette.
Push the wire and terminal up into the relay cassette
terminal cavity until it is fully engaged by the latch.
(8) Repeat Step 4, Step 5, Step 6 and Step 7 one
wire and terminal at a time until each of the wires
and terminals have been transferred from the faulty
PDC relay cassette into the replacement relay cas-
sette.
(9) Install the PDC relay wedge into the replace-
ment PDC relay cassette.
Fig. 14 PDC Relay Cassette Terminal Remove/Install
- Typical
1 - TERMINAL CAVITIES (TYPICAL)
2 - PDC RELAY CASSETTE (TYPICAL)
3 - TERMINAL LATCHES (TYPICAL)
4 - FROM SPECIAL TOOL KIT 6680
WJ8W-97 POWER DISTRIBUTION 8W - 97 - 11
POWER DISTRIBUTION CENTER (Continued)

PDC LOWER COVER INSTALLATION
(1) Align the PDC housing lower cover on the bot-
tom of the PDC.
(2) Evenly press the lower cover into place until
latches are fully engaged.
(3) Where the right headlamp and dash harness
enters the PDC, tape the harness securely to the
trough formation on the PDC lower cover.
(4) Install the PDC in its mounting location on the
battery support.
(5) Install the battery wire harness over the two
PDC B+ terminal studs. Torque the nuts to 11.3 N´m
(100 in. lbs.).
(6) Install the battery. Refer to Battery System for
the procedure.
(7) Install the PDC cover.
INSTALLATION
The Power Distribution Center (PDC) main hous-
ing unit, the PDC fuse wedges and the PDC bus bars
cannot be repaired and are only serviced as a unit
with the right headlamp and dash wire harness. If
the PDC main housing unit, the fuse wedges or the
bus bars are faulty or damaged, the entire PDC and
right headlamp and dash wire harness unit must be
replaced.
(1) Position the PDC and the right headlamp and
dash wire harness unit in the engine compartment.
(2) Engage the PDC housing mounts with the
stanchions of the battery support and push the unit
downward until the mount latches fully engage the
mounting tabs on the stanchions.
(3) Install the two-holed eyelet of the battery wire
harness PDC take outs onto the two PDC B(+) termi-
nal studs.
(4) Install and tighten the nuts that secure the
eyelet of the battery wire harness PDC take outs to
the B(+) terminal studs. Tighten the nuts to 11.3
N´m (100 in. lbs.).
(5) Engage each of the retainers that secure the
right headlamp and dash wire harness to the vehicle
body and chassis components. Refer toConnector
Locationsin Wiring Diagrams for the location of
more information on the right headlamp and dash
wire harness retainer locations.
(6) Install all of the fasteners that secure each of
the right headlamp and dash wire harness ground
eyelets to the vehicle body and chassis components.
Refer toConnector Locationsin Wiring Diagrams
for the location of more information on the ground
eyelet locations.
(7) Reconnect each of the right headlamp and dash
wire harness connectors. Refer toConnector Loca-
tionsin Wiring Diagrams for the location of more
information on the right headlamp and dash wire
harness connector locations. For connectors securedwith screws, tighten the screws to 4.3 N´m (38 in.
lbs.).
(8) Reconnect the battery negative cable.
POWER OUTLET
DESCRIPTION - FRONT POWER OUTLET
An accessory power outlet is standard equipment
on this model. The power outlet is installed in the
instrument panel center lower bezel, which is located
near the bottom of the instrument panel center stack
area, below the heater and air conditioner controls.
The power outlet base is secured by a snap fit within
the center lower bezel. A hinged door with an over-
center spring flips closed to conceal and protect the
power outlet base when the power outlet is not being
used, and flips open below the center lower bezel
while the power outlet is in use.
The power outlet receptacle unit and the power
outlet door are each available for service replace-
ment.
OPERATION - FRONT POWER OUTLET
The power outlet base or receptacle shell is con-
nected to ground, and an insulated contact in the
bottom of the shell is connected to battery current.
The power outlet receives battery voltage from a fuse
in the junction block at all times.
While the power outlet is very similar to a cigar
lighter base unit, it does not include the two small
spring-clip retainers inside the bottom of the recepta-
cle shell that are used to secure the cigar lighter
heating element to the insulated contact.
DIAGNOSIS AND TESTING - POWER OUTLET
For complete circuit diagrams, refer toHorn/Ci-
gar Lighter/Power Outletin Wiring Diagrams.
WARNING: REFER TO RESTRAINTS BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE
PROPER PRECAUTIONS COULD RESULT IN ACCI-
DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
(1) Check the fused B(+) fuse in the junction block.
If OK, go to Step 2. If not OK, repair the shorted cir-
cuit or component as required and replace the faulty
fuse.
(2) Check for battery voltage at the fused B(+) fuse
in the junction block. If OK, go to Step 3. If not OK,
repair the open fused B(+) circuit to the Power Dis-
tribution Center (PDC) fuse as required.
(3) Open the power outlet door. Check for continu-
ity between the inside circumference of the power
8W - 97 - 12 8W-97 POWER DISTRIBUTIONWJ
POWER DISTRIBUTION CENTER (Continued)

The cigar lighter relay cannot be repaired or
adjusted and, if faulty or damaged, it must be
replaced.
OPERATION
The ISO relay consists of an electromagnetic coil, a
resistor or diode, and three (two fixed and one mov-
able) electrical contacts. The movable (common feed)
relay contact is held against one of the fixed contacts
(normally closed) by spring pressure. When the elec-
tromagnetic coil is energized, it draws the movable
contact away from the normally closed fixed contact,
and holds it against the other (normally open) fixed
contact.
When the electromagnetic coil is de-energized,
spring pressure returns the movable contact to the
normally closed position. The resistor or diode is con-
nected in parallel with the electromagnetic coil in the
relay, and helps to dissipate voltage spikes that are
produced when the coil is de-energized.
DIAGNOSIS AND TESTING - POWER OUTLET
RELAY
The power outlet / cigar lighter relay (Fig. 16) is
located in the junction block, below the driver side
end of the instrument panel in the passenger com-
partment. For complete circuit diagrams, refer to
Horn/Cigar Lighter/Power Outletin Wiring Dia-
grams.
WARNING: REFER TO RESTRAINTS BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, OR INSTRUMENT PANEL COMPONENT
DIAGNOSIS OR SERVICE. FAILURE TO TAKE THE
PROPER PRECAUTIONS COULD RESULT IN ACCI-
DENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
(1) Remove the power outlet / cigar lighter relay
from the junction block. Refer to the procedure in
this group.
(2) A relay in the de-energized position should
have continuity between terminals 87A and 30, and
no continuity between terminals 87 and 30. If OK, go
to Step 3. If not OK, replace the faulty relay.
(3) Resistance between terminals 85 and 86 (elec-
tromagnet) should be 75   5 ohms. If OK, go to Step
4. If not OK, replace the faulty relay.
(4) Connect a battery to terminals 85 and 86.
There should now be continuity between terminals
30 and 87, and no continuity between terminals 87A
and 30. If OK, perform the Relay Circuit Test that
follows. If not OK, replace the faulty relay.
DIAGNOSIS AND TESTING - RELAY CIRCUIT TEST
(1) The relay common feed terminal cavity (30) of
the junction block is connected to battery voltage and
should be hot at all times. Check for battery voltage
at the fused B(+) circuit cavity in the junction block
receptacle for the cigar lighter relay. If OK, go to
Step 2. If not OK, repair the fused B(+) circuit to the
Power Distribution Center (PDC) fuse as required.
(2) The relay normally closed terminal (87A) is
connected to terminal 30 in the de-energized position,
but is not used for this application. Go to Step 3.
(3) The relay normally open terminal (87) is con-
nected to the common feed terminal (30) in the ener-
gized position. This terminal supplies battery voltage
to the fused B(+) fuse in the junction block that feeds
the cigar lighter when the relay is energized by the
ignition switch. There should be continuity between
the junction block cavity for relay terminal 87 and
the fused B(+) fuse in the junction block at all times.
If OK, go to Step 4. If not OK, repair the open fused
B(+) circuit to the junction block fuse as required.
(4) The coil ground terminal (85) is connected to
the electromagnet in the relay. It receives battery
feed to energize the cigar lighter relay when the igni-
tion switch is in the Accessory or On positions. Turn
the ignition switch to the On position. Check for bat-
tery voltage at the fused ignition switch output (acc/
run) circuit cavity for relay terminal 85 in the
junction block receptacle for the cigar lighter relay. If
OK, go to Step 5. If not OK, repair the open fused
ignition switch output (acc/run) circuit to the ignition
switch as required.
(5) The coil battery terminal (86) is connected to
the electromagnet in the relay. The junction block
cavity for this terminal should have continuity to
Fig. 16 Accessory Relay
TERMINAL LEGEND
NUMBER IDENTIFICATION
30 COMMON FEED
85 COIL GROUND
86 COIL BATTERY
87 NORMALLY OPEN
87A NORMALLY CLOSED
8W - 97 - 14 8W-97 POWER DISTRIBUTIONWJ
POWER OUTLET RELAY (Continued)