relay JEEP YJ 1995 Service And Manual PDF

INTERIOR LIGHTING
INDEX
page page
Cargo Lamp, Courtesy Lamps and Dome Lamp.... 1
Chime/Buzzer Module....................... 2
Diagram Index............................ 2
General Information........................ 1
Glove Box Lamp........................... 1
Ignition Switch Lamp........................ 1Instrument Panel Illumination Lamps............ 1
Reading Lamps........................... 2
Time Delay Relay.......................... 1
Underhood Lamp.......................... 2
Visor Vanity Mirror Lamps.................... 2
GENERAL INFORMATION
Circuit M1 supplies power to the glove box lamp,
left courtesy lamp, right courtesy lamp, dome lamp,
and cargo lamp. The M1 circuit also connects to the
remote keyless entry module. Circuit M1 is protected
by the ignition off draw (IOD) fuse (fuse 9) in the fuse
block.
Circuit E2 supplies power for the instrument panel
illumination lamps.
INSTRUMENT PANEL ILLUMINATION LAMPS
Circuit E2 from the headlamp switch splices to
supply power to the following illumination lamps:
²Ash receiver lamp
²Cigar lighter lamp
²Transmission range indicator lamp
²Transfer case range indicator lamp
²A/C-Heater switch lamp
²Heated rear window lamp
²Rear wiper switch lamp
²Fog lamp switch lamp
Fuse 19 in the fuse block protects circuit E2. Circuit
Z1 provides ground for all of the illumination lamps
except for the cigar lighter lamp. The cigar lighter
lamp is case grounded.
HELPFUL INFORMATION
Circuit E2 also supplies power to the radio, LCD
relay and the illumination lamps in the instrument
cluster.
IGNITION SWITCH LAMP
The time delay relay is used to allow a time-ON
function for the ignition switch lamp and the courtesy
lamp. Power for the relay is received on the M1
circuit from the IOD fuse (fuse F9) in the fuse block.
Circuit M2 provides ground for the time delay relay
through the right and left door ajar switches and the
headlamp switch. When a door is opened, or the
headlamp switch is moved to the dome lamp position,a ground path is provided for the relay on circuit M2.
This energizes the relay, causing the contacts to close.
When the relay contacts close, power is provided
through the relay to circuit M50. The M50 circuit
supplies current to the ignition switch lamp. Circuit
Z1 provides ground for the lamp.
GLOVE BOX LAMP
Circuit M1 from the IOD fuse (fuse F9) in the fuse
block powers the glove box lamp. A case grounded
switch, in series after the lamp, closes when the glove
box door is opened. The switch completes a path to
ground on circuit Z1.
CARGO LAMP, COURTESY LAMPS AND DOME
LAMP
Circuit M1 from the IOD fuse (fuse F9) in the fuse
block supplies power to the cargo, courtesy lamps and
dome lamp. This circuit is HOT at all times. The
ground path for the lamp is provided in three differ-
ent ways.
One way is through the door jamb switches. Circuit
M2 connects to the door jamb switches from the cour-
tesy and dome lamps. The switches are connected to
ground circuit Z1. When a door is opened, the plunger
in the switch closes, completing a path to ground.
The second way is through the liftgate switch. Cir-
cuit M2 connects to circuit M4 at the cargo lamp.
Circuit M4 connects to the liftgate switch. The lift-
gate switch connects to ground circuit Z1. When the
lift gate opens, the plunger in the switch closes, com-
pleting a path to ground.
The third ground path is through the headlamp
switch. Circuit M2 is spliced in with the headlamp
switch. When the operator turns the headlamp switch
to the dome lamp ON position, a ground path is
provided through the switch.
J8W-44 INTERIOR LIGHTINGÐXJ VEHICLES 8W - 44 - 1

READING LAMPS
Circuit M1 from the IOD fuse (fuse F9) in the fuse
block supplies power to the reading lamps. Circuit
M1 is HOT at all times. When the operator depresses
the reading lamp, the reading lamp switch closes and
supplies ground on circuit Z1.
VISOR VANITY MIRROR LAMPS
Circuit M1 from the IOD fuse (fuse F9) in the fuse
block supplies power to the vanity lamps. Circuit M1
is HOT at all times. When the vanity lamps switch
closes, voltage flows to vanity mirror lamps. The van-
ity mirror is case grounded.
UNDERHOOD LAMP
Circuit A6 from fuse 16 in the Power Distribution
Center (PDC) supplies battery voltage for the under-
hood lamp. A mercury switch, in series after the
lamp, connects the lamp to ground on circuit Z1.
When the hood is raised, mercury inside the switch
moves to a position where it connects circuit M1 to
ground circuit Z1, illuminating the lamp.
CHIME/BUZZER MODULE
The buzzer or optional chime module sounds an au-
dible warning tone. The tone sounds for seat belt
warning and when the ignition key is in the ignition
switch while the drivers door is open. The tone also
sounds when the ignition key is in the ON position
while the drivers side seat belt is not buckled. Lastly,
the tone sounds when the headlamps are ON when
the ignition is OFF. Refer to Group 8U for system op-
eration.
When the ignition switch is in the RUN or START
position, circuit F87 from fuse 17 in the fuse block
supplies power to the chime/buzzer module. Circuit
A21 from the ignition switch supplies power to fuse
17.
Circuit L7 from fuse 15 in the fuse block also sup-
plies power to the chime/buzzer module. Circuit A3
from fuse 5 in the Power Distribution Center (PDC)
powers fuse 15.
When the parking lamps or headlamps are ON, the
headlamp switch connects circuit G26 with the driv-
ers side door jamb switch. Circuit G26 also connects
to the key-in switch. Circuit M11 connects the key-in
switch to the chime/buzzer module and the headlamp
switch.
If the headlamps are ON, and the drivers door
opens, ground for the chime/buzzer is on circuit C26
from the headlamp switch through the door jamb
switch to circuit Z1.
If the headlamps are OFF with the key in the ig-
nition while the drivers side door is open, ground forthe chime/buzzer is supplied through the key-in
switch. The ground path is over circuit M11, through
the closed key-in switch to circuit C26. From circuit
C26, the ground path continues through the drivers
door jamb switch to circuit Z1.
Circuit G11 from the buzzer powers the seat belt
warning lamp in the instrument cluster. Circuit Z1
at the instrument cluster provides ground for the
lamp.
Circuit G10 from the buzzer connects to the seat
belt switch. When the seat belt switch closes a path
to ground is completed on circuit Z1 and the tone
sounds momentarily.
Circuit Z1 also grounds the chime\buzzer module.
HELPFUL INFORMATION
Circuit F87 also powers the instrument cluster and
the headlamp delay module.
DIAGRAM INDEX
Component Page
Cargo Lamp............................8W-44-6
Chime/Buzzer Module......................8W-44-3
Courtesy Lamps.........................8W-44-5
Dome Lamp............................8W-44-7
Door Jamb Switches.....................8W-44-10
Fuse 3 (PDC).........................8W-44-4, 6
Fuse 5 (PDC).........................8W-44-3, 8
Fuse 6 (PDC)...........................8W-44-3
Fuse 9 (Fuse Block).....................8W-44-4, 6
Fuse 15 (Fuse Block)....................8W-44-3, 8
Fuse 16 (PDC)........................8W-44-4, 6
Fuse 17 (Fuse Block)......................8W-44-3
Fuse 19 (Fuse Block)......................8W-44-8
Glove Box Lamp and Switch.................8W-44-5
Headlamp Switch...................8W-44-3, 4, 5, 8
Headlamp Delay Module....................8W-44-4
Headlamp Delay Relay.....................8W-44-3
Ignition Switch..........................8W-44-3
Instrument Cluster........................8W-44-3
Instrument Panel Illumination Lamps..........8W-44-8, 9
Intermittent Wiper Control Module.............8W-44-4
Key-In Switch...........................8W-44-4
Liftgate Switch..........................8W-44-6
Reading Lamps..........................8W-44-7
Remote Keyless Entry Module................8W-44-7
Seat Belt Switch.........................8W-44-3
Telltale Connector (Instrument Cluster)...........8W-44-3
Time Delay Relay........................8W-44-4
Underhood Lamp.........................8W-44-4
Vanity Lamps...........................8W-44-7
8W - 44 - 2 8W-44 INTERIOR LIGHTINGÐXJ VEHICLESJ

AUDIO SYSTEM
RADIO
When the ignition switch is in the ACCESSORY or
RUN position, it connects circuit A1 from fuse 6 in the
Power Distribution Center (PDC) to circuit A48. Cir-
cuit A48 powers circuit F85 through fuse 2 in the fuse
block. Circuit F85 powers the radio.
Circuit Z1 provides ground for the radio. The an-
tenna connects to the rear of the radio.
RADIO MEMORY
Circuit M1 from the Ignition Off Draw (IOD) fuse
(fuse 9) in the fuse block supplies power for the radio
memory. The IOD fuse is removed during vehicle
shipping to prevent excessive battery draw.
Circuit A6 from fuse 16 in the Power Distribution
Center (PDC) supplies voltage to fuse 9. Circuit A7
from fuse 3 in the PDC powers circuit A6 through
fuse 16. Circuits A6, A7 and M1 are HOT at all times.
RADIO ILLUMINATION
Circuit E2 supplies battery voltage to the radio
illumination lamps when the headlamps or parking
lamps are on and the dimmer switch is in the LOW or
ON positions.
Circuit X5 supplies battery voltage for the radio
clock and station frequency display. Circuit X5 origi-
nates at the radio illumination relay and is fed by
either circuit F85 or circuit E2 depending on the
switch position inside the relay.
When the headlamps and parking lamps are off, the
radio illumination relay is in its normal At Rest posi-
tion. In the At Rest position, the relay connects circuit
F85 from fuse 2 in the fuse block to circuit X5.
When the headlamps or parking lamps are on, cir-
cuit L90 from the headlamp switch supplies battery
voltage to the coil side of the radio illumination relay.
Circuit Z1 provides ground for the coil side of the
relay.
When voltage is present on circuit L90, the radio
illumination relay switches from its At Rest position
to connect circuit E2 to circuit X5.
SPEAKERS
There are 3 different radio packages. The standard
radio package includes 2 speakers; one in each front
door. The four speaker system uses speakers in each
front door plus speakers in the rear sound bar. The six
speaker system has the front door speakers, sound bar
speakers and two speakers in the instrument panel.
BASE RADIO
Vehicles with the base radio have a jumper between
the radio and the instrument panel connectors. The
jumper simulates rear speaker load.Circuit X53 feeds the speaker in the left front door.
Circuit X55 is the return from the speaker to the
radio.
Circuit X54 feeds the right front door speaker. Cir-
cuit X56 is the return from the speaker to the radio.
FOUR SPEAKER SYSTEM
Circuit X53 feeds the speaker in the left front door.
Circuit X55 is the return from the speaker to the
radio.
Circuit X54 feeds the right front door speaker. Cir-
cuit X56 is the return from the speaker to the radio.
Circuit X51 feeds the left rear speaker. Circuit X57
is the return from the speaker to the radio.
Circuit X52 feeds the right rear speaker. Circuit
X58 is the return from the speaker to the radio.
SIX SPEAKER SYSTEM
Circuit X53 feeds the left speaker in the instrument
panel. The X53 circuit is double crimped at the in-
strument panel left speaker and branches to the left
front door speaker. Circuit X55 is the return to the
radio from the instrument panel left speaker and left
front door speaker. Circuit X55 is double crimped at
the instrument panel left speaker.
Circuit X54 feeds the right speaker in the instru-
ment panel. The X54 circuit is double crimped at the
instrument panel right speaker and branches to the
right front door speaker. Circuit X56 is the return to
the radio from the instrument panel left speaker and
left front door speaker. Circuit X56 is double crimped
at the instrument panel left speaker.
Circuit X51 feeds the left rear speaker. Circuit X57
is the return from the speaker to the radio.
Circuit X52 feeds the right rear speaker. Circuit
X58 is the return from the speaker to the radio.
DIAGRAM INDEX
Component Page
Fuse Block...........................8W-47-2, 3
Headlamp Switch.........................8W-47-2
Ignition Switch..........................8W-47-2
LCD Relay.............................8W-47-3
Power Distribution Center..................8W-47-2, 3
Radio............................8W-47-2 thru 7
Speakers (Six Speaker System)..............8W-47-4, 5
Speakers (Four Speaker System).............8W-47-6, 7
J8W-47 AUDIO SYSTEMÐXJ VEHICLES 8W -47 - 1

HEATED REAR WINDOW
HEATED REAR WINDOW
The heated rear window relay supplies power to
heated rear window grid. Circuit F83 from fuse 8 in
the fuse 8 in the fuse block supplies power to the
heated rear window relay when the ignition switch is
in the ACCESSORY or RUN positions.
When the operator depresses the heated rear win-
dow switch, the contacts inside the switch momen-
tarily close and circuit C80 connects the switch to the
relay. This causes the relay to change state and com-
plete a circuit to energize the coil side of the relay
and start the relay timer.
Circuit F81 from fuse 18 in the fuse block supplies
voltage to the coil and contact sides of the relay. Cir-
cuit Z1 provides ground for the relay.
When the heated rear window relay energizes, the
contacts inside the relay close and connect circuit
F81 to circuit C15. Circuit C15 splices to the power
the heated rear window grid and the indicator lamp
in the heated rear window switch. Circuit Z1 pro-
vides ground for the heated rear window grid.
HELPFUL INFORMATION
²When the ignition switch is in the ACCESSORY or
RUN positions, it connects circuit A1 from fuse 6 in
the power distribution center (PDC) to circuit A48.
²Check for broken grid lines on the window.
²Check for a broken bus bar or disconnected leads
at the rear window.
²Check for a good ground.
DIAGRAM INDEX
Component Page
Fuse 6 (PDC)...........................8W-48-2
Fuse 7 (PDC)...........................8W-48-2
Fuse 8 (Fuse Block).......................8W-48-2
Fuse 18 (Fuse Block)......................8W-48-2
Ignition Switch..........................8W-48-2
Heated Rear Window Grid...................8W-48-3
Heated Rear Window Relay..................8W-48-2
Heated Rear Window Switch.................8W-48-2
J8W-48 HEATED REAR WINDOWÐXJ VEHICLES 8W - 48 - 1

FRONT LIGHTING
INDEX
page page
Daytime Running Lamp (DRL) Module........... 2
Diagram Index............................ 2
Fog Lamps............................... 1Headlamp Delay Module..................... 2
Headlamps............................... 1
Parking Lamps............................ 1
HEADLAMPS
The headlamp switch has three positions: ON,
PARK (parking lamps) and OFF. Circuit A3 from fuse
5 in the PDC connects to the headlamp switch and
feeds the circuit L7 through fuse 15 in the fuse block.
Circuit L7 connects to the headlamp switch.
Circuit A3 also splices to feed circuit L11 through
fuse 4 in the fuse block. Circuit L11 connects to the
dimmer switch circuitry in the multi-function switch.
Circuit A3 from fuse 5 in the PDC supplies battery
voltage to the headlamp switch. The headlamp switch
has an internal circuit breaker that connects circuit
A3 to circuit F34. Circuit F34 connects to the dimmer
switch circuitry in the multi-function switch.
HEADLAMP SWITCH IN OFF OR PARKING
LAMP POSITION
Circuit L11 connects to the dimmer switch portion
of the multi-function switch. Circuit L11 supplies
power for the high beams on circuit L3 when the
operator flashes the headlamps with the turn signal
stalk of the multi-function switch.
HEADLAMP SWITCH IN ON POSITION
When the headlamp switch is in the ON position,
circuit A3 from fuse 5 in the Power Distribution Cen-
ter (PDC) connects to circuit F34. Circuit F34 con-
nects to the dimmer switch portion of the multi-
function switch and feeds circuit L4. Circuit L4
powers the low beam of the headlamps.
When the operator selects high beam operation
with the turn signal stalk of the multi-function
switch, circuit L11 connects to the L3 circuit. Circuit
L3 powers high beam operation.
HEADLAMP GROUND
Circuit Z1 provides ground for both the right and
left headlamps. Circuit Z1 also supplies ground for
the fog lamps, if equipped.
HELPFUL INFORMATION
²Check fuse 5 in the PDC.
²The headlamp switch has an internal circuit
breaker.
PARKING LAMPS
Circuit A3 from fuse 5 in the Power DistributionCenter (PDC) connects to a bus bar in the fuse block
which feeds circuit L7. Fuse 15 in the fuse block
protects circuit L7.
The headlamp switch has three positions: ON,
PARK (parking lamps) and OFF, plus a dimmer
switch. When the headlamp switch is in the PARK or
ON position, the switch connects circuit L7 to circuit
L90. From the headlamp switch, circuit L90 branches
to power the front parking lamps and rear tail lamps,
side marker lamps, and rear license plate lamps.
GROUND CIRCUIT
Circuit Z1 provides a ground for the parking lamps
and turn signal lamps. The Z1 circuit also provide
ground for the headlamps.
HELPFUL INFORMATION
²Check fuse 5 in the PDC.
²Check fuse 15 in the fuse block.
²When the headlamp switch is in the PARK or ON
position, the dimmer circuit, L7, also connects to cir-
cuit E2. Circuit E2 continues through fuse 19 in the
fuse block. Circuit E2 powers the illumination lamps.
FOG LAMPS
The fog lamps are controlled by the fog lamp
switch, park lamp relay and high beam relay. The fog
lamps operate only when the headlamp switch is in
the ON position, and the operator has selected low-
beam operation. When the headlamps are in high-
beam operation, the fog lamps will not operate.
Circuit F39 from fuse 5 in the Power Distribution
Center (PDC) supplies voltage to the contact side of
the park lamp relay.
Circuit L90 supplies power to the coil side of the
park lamp relay. Circuit L35 connects to the coil side
of the relay and to circuit Z1 through the fog lamp
switch. Ground for the coil side of the relay is pro-
vided on circuit Z1 through the fog lamp switch.
When the fog lamp switch closes, the park lamp
relay contacts close and circuit F39 passes through
the relay to power the contact side of the high beam
relay. When the headlamp high beams are OFF, the
high beam relay is not energized and voltage flows
through the normally closed contacts to circuit L39.
J8W-50 FRONT LIGHTINGÐXJ VEHICLES 8W - 50 - 1

Circuit L39 supplies voltage to the fog lamps. Cir-
cuit Z1 provides ground for the fog lamps.
If the high beam lamps are ON, circuit G465 ener-
gizes the high beam relay. When the high beam relay
energizes, the contacts open and power is not sup-
plied to the fog lamps. Circuit Z1 provides ground for
the coil side of the high beam relay.
Circuit E2 provides voltage for the illumination
lamp in the fog lamp switch.
HELPFUL INFORMATION
²Circuit L3 splices to power circuit G465. Circuit
L3 powers the high beam circuit of the headlamps.
HEADLAMP DELAY MODULE
When the operator turns off the ignition switch and
the headlamp switch, the headlamp delay module
powers the headlamps for approximately 45 seconds.
When the ignition switch is in the RUN position,
circuit A21 powers circuit F87 through fuse 17 in the
fuse block. Circuit F87 supplies the IGNITION ON/
OFF signal to the headlamp delay module. Circuit Z1
provides ground for the module.
When the headlamp delay module activates, it con-
nects circuit X4 from fuse 11 in the fuse block to cir-
cuit F34. Circuit F34 powers the headlamps through
the headlamp dimmer switch circuit L3.
HELPFUL INFORMATION
Circuit A7 from fuse 3 in the PDC supplies voltage
to the fuse block bus bar that powers circuit X4
through the fuse in cavity 11.
DAYTIME RUNNING LAMP (DRL) MODULE
On vehicles built for sale in Canada, the low-beam
headlamps operate when the ignition switch is in the
RUN position.
When the ignition switch is in the RUN position,
circuit A1 from fuse 6 in the Power Distribution Cen-
ter (PDC), connects to circuit A21. Circuit A21 splices
to supply power to the DRL module.
Circuit A3 from fuse 5 in the PDC connects to DRL
module. Circuit A3 is HOT at all times.The DRL module receives the vehicle speed sensor
input from circuit G7. Circuit G465 from the DRL
module splices to circuit L3 to provide power for the
high beam indicator lamp in the instrument cluster.
Circuit L4 powers the low beams of the left and
right headlamps. When the headlamp switch is OFF,
the DRL module powers the low beams on circuit L4.
When the headlamps are ON, the dimmer switch in
the multi-function switch powers the low beams on
circuit L4.
Circuit L3 feeds the high beams of the headlamps.
When the operator flashes the headlamps with the
stalk of the multi-function switch, the DRL senses
voltage on circuit L3. When it senses voltage on cir-
cuit L3, the DRL module stops supplying power to
the low beams on circuit L4.
Circuit Z12 provides ground for the DRL module.
DIAGRAM INDEX
Component Page
Chime/Buzzer Module......................8W-50-8
Daytime Running Lamps (DRL) Module..........8W-50-3
Fog Lamps.............................8W-50-7
Fog Lamp Switch........................8W-50-7
Fuse 3 (PDC)...........................8W-50-9
Fuse 4 (Fuse Block).......................8W-50-9
Fuse 5 (PDC).....................8W-50-2, 3, 6, 9
Fuse 6 (PDC).........................8W-50-2, 8
Fuse 7 (PDC)...........................8W-50-6
Fuse 11 (Fuse Block)......................8W-50-9
Fuse 13 (PDC)..........................8W-50-6
Fuse 15 (Fuse Block)....................8W-50-3, 6
Fuse 17 (Fuse Block)......................8W-50-8
Fuse 19 (Fuse Block)......................8W-50-6
Headlamps.............................8W-50-5
Headlamp Dimmer Switch.................8W-50-4, 9
Headlamp Switch.....................8W-50-4, 6, 9
High Beam Relay.........................8W-50-7
Ignition Switch........................8W-50-3, 8
Park Lamp Relay.........................8W-50-6
Side Marker Lamps.......................8W-50-5
Tail, Stop and Turn Signal Lamps..............8W-50-5
Telltale Connector (Instrument Cluster)...........8W-50-9
8W - 50 - 2 8W-50 FRONT LIGHTINGÐXJ VEHICLESJ

TURN SIGNALS
COMBINATION FLASHER
In the ACCESSORY or RUN position, the ignition
switch connects circuit A1 from fuse 6 in the Power
Distribution Center (PDC) to circuit A48. Circuit A48
feeds circuit F83 through fuse 8 in the fuse block.
Circuit F83 powers the combination flasher for the
turn signals. Circuit L9 from fuse 4 in the PDC sup-
plies battery voltage to the combination flasher for
the hazard lamps. Circuit Z1 provides ground for the
combination flasher.
Circuit L5 from the flasher connects to the multi-
function switch to supply power to the turn signals.
The multi-function switch supplies voltage to the
turn signals and side marker lamps on circuits L60
and L61.
Circuit L12 from the flasher connects to the multi-
function switch to supply power to the hazard flasher
circuits. The multi-function switch connects to the
turn signal and side marker lamps on circuits L60
and L61.
TURN SIGNALS
When the operator selects the right turn signal, the
multi-function switch connects power from circuit L5
to circuit L60. Circuit L60 feeds the right front and
right rear turn signal lamps. Circuit L60 also splices
to power the right turn signal indicator lamp on the
instrument cluster.
When the operator selects the left turn signal, the
multi-function switch connects power from circuit L5
to circuit L61. Circuit L61 feeds the left front and
left rear turn signal lamp. Circuit L61 also splices to
power the left turn signal indicator lamp on the in-
strument cluster.
Circuit Z1 provides ground for the turn signal
lamps.
HELPFUL INFORMATION
²The turn signal lamps are the same lamps used
for the hazard flasher.
²Check fuse 6 in the PDC and fuse 8 in the fuse
block if the turn signals do not operate.
²Circuit F83 also connects to the heated rear win-
dow relay.
HAZARD FLASHERS
When the operator selects the hazard flashers, the
multi-function switch circuit L12 from the combina-
tion flasher to circuits L60 and L61.
Circuit L60 feeds the right front and right rear
turn signal lamp. Circuit L60 also splices to power
the right turn signal indicator lamp on the instru-
ment cluster.
Circuit L61 feeds the left front and left rear turn
signal lamp. Circuit L61 also splices to power the left
turn signal indicator lamp on the instrument cluster.
Circuit Z1 provides ground for the hazard flasher
lamps.
HELPFUL INFORMATION
²The hazard flasher lamps are the same lamps
used for the turn signals.
²Circuit L9 also connects to the stop lamp switch.
DIAGRAM INDEX
Component Page
ABS Control Module......................8W-52-3
Combination Flasher.......................8W-52-2
Fuse 4 (PDC)...........................8W-52-2
Fuse 6 (PDC)...........................8W-52-2
Fuse 8 (Fuse Block).......................8W-52-2
Ignition Switch..........................8W-52-2
Instrument Cluster........................8W-52-2
Powertrain Control Module..................8W-52-3
Stop Lamp Switch........................8W-52-3
Transmission Control Module.................8W-52-3
Turn Signal Switch.......................8W-52-2
J8W-52 TURN SIGNALSÐXJ VEHICLES 8W - 52 - 1

TRAILER TOW
TRAILER TOW
The factory installed trailer tow system in this ve-
hicle uses three relays and a circuit breaker along
with the trailer tow wiring connector located below
the rear bumper.
Battery voltage for the trailer tow circuit breaker
and relays is supplied on circuit A11. This circuit is
HOT at all times and connects to the power accessory
tap in the fuse block. An in line 10 amp circuit pro-
tected breaker protects circuit A11 and the trailer
tow circuits. The trailer tow circuit breaker is located
in the left rear quarter panel.
STOP LAMP RELAY
Power for the coil side of the stop lamp relay is
supplied by circuit L50. This circuit connects to the
stop lamps. Ground for the coil side is supplied on
circuit Z1.
When the operator depresses the brake pedal, volt-
age flows through the coil of the relay to ground
causing the contacts in the relay to connect circuits
A11 and 95.
Circuit 95 connects to the left and right turn signal
relays. Voltage flows through the closed contacts in
the relays to the trailer tow connector.
RIGHT TURN RELAY
Power for the coil side of the right turn relay is
supplied by circuit L60. This circuit connects to the
right side turn signal lamps. Ground for the coil side
of the relay is supplied on circuit Z1.
When the operator turns the right turn signal ON,
power flows through the coil in the relay to ground
causing the contacts in the relay to switch from there
normally CLOSED position to connect circuits 94 and
L60.
Circuit 94 is the feed for the contact side of the re-
lay. Circuit L60 connects from the relay to the trailer
tow connector.
Circuit 94 is fed power through the normally
CLOSED side of the stop lamp relay and circuit A11.
The A11 circuit is HOT at all times and protected by
a 10 amp circuit breaker located in the left rear
quarter panel.
LEFT TURN RELAY
Power for the coil side of the left turn relay is sup-
plied by circuit L61. This circuit connects to the left
side turn signal lamps. Ground for the coil side of the
relay is supplied on circuit Z1.
When the operator turns the left turn signal ON,
power flows through the coil in the relay to ground
causing the contacts in the relay to switch from there
normally CLOSED position to connect circuits 94 and
L61.
Circuit 94 is the feed for the contact side of the re-
lay. Circuit L61 connects from the relay to the trailer
tow connector.
Circuit 94 is fed power through the normally
CLOSED side of the stop lamp relay and circuit A11.
The A11 circuit is HOT at all times and protected by
a 10 amp circuit breaker located in the right rear
quarter panel.
HELPFUL INFORMATION
²Check the In-Line circuit breaker
DIAGRAM INDEX
Component Page
Circuit Breaker (Fuse Block Cavity 16)...........8W-54-4
Circuit Breaker (In-Line)....................8W-54-4
Electric Brake Provision....................8W-54-2
Fuse 3 (PDC)...........................8W-54-4
Left Turn Signal Relay.....................8W-54-3
Left Back-Up Lamp.......................8W-54-2
Left Side Marker Lamp.....................8W-54-2
Left Tail/Stop Lamp.......................8W-54-2
Left Turn Signal Lamp.....................8W-54-2
Right Turn Signal Relay....................8W-54-3
Stop Lamp Relay.........................8W-54-3
Trailer Tow Connector......................8W-54-2
J8W-54 TRAILER TOWÐXJ VEHICLES 8W - 54 - 1

POWER DOOR LOCKS
POWER DOOR LOCKS
Two relays provide power for the power door lock
motors. The Unlock relay provides power for the un-
lock circuits while the Lock relay powers the lock cir-
cuits. Either the power door lock switches or the
remote keyless entry module operate the Unlock and
Lock relays.
LOCK RELAY
Circuit M1 from fuse 9 in the fuse block powers cir-
cuit P38. When either power door lock switch is put
in the LOCK position, the switch connects circuit P38
to circuit P35. If the operator uses Remote Keyless
Entry (RKE), the RKE module powers circuit P35. In
either case, circuit P35 supplies power to the coil side
of the lock relay, causing the relay contacts to close.
Circuit Z1 provides ground for the coil side of the
lock relay.
When the lock relay contacts close, they connect
battery voltage from circuit P37 to circuit P2. Circuit
P2 then supplies battery voltage to the power door
lock motors to LOCK the doors.
When the power doors LOCK, ground for the mo-
tors is on circuit P34 through the normally closed
contacts in the door unlock relay to ground on circuit
Z1.
UNLOCK RELAY
Circuit M1 from fuse 9 in the fuse block powers cir-
cuit P38. When either power door lock switch is put
in the UNLOCK position, the switch connects circuit
P38 to circuit P36. If the operator uses Remote Key-
less Entry (RKE), the RKE module powers circuit
P36. In either case, circuit P36 supplies power to the
coil side of the unlock relay, causing the relay con-
tacts to close. Circuit Z1 provides ground for the coil
side of the unlock relay.
When the unlock relay contacts close, they connect
battery voltage from circuit P37 to circuit P34. Cir-
cuit P34 then supplies battery voltage to the power
door lock motors to UNLOCK the doors.
When the power doors UNLOCK, ground for the
motors is on circuit P2 through the normally closed
contacts in the door lock relay to ground on circuit
Z1.
REMOTE KEYLESS ENTRY MODULE
Circuit M1 from the ignition off draw (IOD) fuse in
cavity 9 of the fuse block supplies power to the Re-
mote Keyless Entry (RKE) module. Circuit F87 from
fuse 17 in the fuse block supplies power to the RKE
module when the ignition switch is in the START or
RUN position. Circuit Z1 provides ground for the
RKE module.
The RKE module UNLOCKS the doors by energiz-
ing the unlock relay on circuit P36. Refer to Unlock
Relay.
The module LOCKS the doors by energizing the
lock relay on circuit P35. Refer to Lock Relay.
HELPFUL INFORMATION
²Fuse 13 in the fuse block powers circuit P37. Cir-
cuit A7 from fuse 3 in the PDC feeds fuse 13 in the
fuse block.
²Circuit A7 from fuse 3 in the PDC also feeds fuse
16 in the PDC. PDC fuse 16 powers fuse 9 in the
fuse block. Fuse 9 protects the M1 circuit.
DIAGRAM INDEX
Component Page
Chime/Buzzer Module......................8W-61-5
Fuse 3 (PDC).........................8W-61-2, 6
Fuse 6 (PDC)...........................8W-61-5
Fuse 9 (Fuse Block).......................8W-61-2
Fuse 11 (Fuse Block)......................8W-61-2
Fuse 13 (Fuse Block)......................8W-61-2
Fuse 14 (Fuse Block)......................8W-61-2
Fuse 16 (PDC)........................8W-61-2, 6
Fuse 17 (Fuse Block)......................8W-61-5
Headlamp Delay Module....................8W-61-5
Ignition Switch..........................8W-61-5
Liftgate Lock Motor.......................8W-61-4
Power Door Lock Motors...................8W-61-4
Power Door Lock Relay....................8W-61-3
Power Door Lock Switches..................8W-61-2
Power Door Unlock Relay...................8W-61-3
Remote Keyless Entry (RKE) Module............8W-61-6
Telltale Connector........................8W-61-5
J8W-61 POWER DOOR LOCKSÐXJ VEHICLES 8W - 61 - 1

SPLICE LOCATIONS
GENERAL INFORMATION
This section provides illustrations identifying the
general location of the splices in this vehicle. A splice
index is provided. Use the wiring diagrams in each
section for splice number identification. Refer to the
index for the proper splice number.
SPLICE LOCATIONS
Splice
NumberLocations Fig.
S101 Near Generator T/O..................4
S102 Near Bulkhead T/O...................2
S103 Near Bulkhead T/O...................2
S104 Near Bulkhead T/O...................2
S105 Near Bulkhead T/O...................2
S106 Near Bulkhead T/O...................1
S107 Near Wiper Motor T/O................1
S108 Near Wiper Motor T/O................1
S109 Near Wiper Motor T/O................1
S110 Center of Dash Panel Near Grommet.......1
S111 Near T/O for ABS Diode...............7
S112 Near T/O for Map Sensor..............1
S113 Near T/O for Injector #5 and #6..........4
S114 Near T/O for Injector #5 and #6..........4
S115 Near T/O for Injector #5 and #6..........4
S116 Near T/O for Injector #5 and #6..........4
S117 Near T/O for Map Sensor..............1
S118 Near T/O for Map Sensor..............1
S119 Near Distributor T/O..................1
S120 Between Distributor T/O and Underhood
Lamp T/O.......................1
S121 Between Distributor T/O and Underhood
Lamp T/O.......................1
S122 Between Distributor T/O and Underhood
Lamp T/O.......................1
S123 RT Side of Cowl Panel................1
S124 RT Side of Cowl Panel................1
S125 Near T/O for PDC...................1
S126 Near T/O for Oil Pressure Switch..........5
S127 Near Generator T/O..................5
S128 LT Side of Grille Panel................3
S129 LT Side of Grille Panel................3
S130 Center of Grille Panel.................3
S201 Near Body Harness Connector T/O.........6
S202 Near Body Harness Connector T/O.........6
S203 Near Body Harness Connector T/O.........6
S204 Near Relay Center...................6
S205 Near T/O for Headlamp Switch...........6Splice
NumberLocations Fig.
S206 Near T/O for Telltale..................6
S207 Near T/O for Cluster..................6
S208 Near T/O for Cluster..................6
S209 Right Side of Cluster.................6
S210 Right Side of Cluster.................6
S211 Near Instrument Panel Ground T/O........6
S212 Near Wiper Switch T/O................6
S213 Near Antenna T/O...................7
S214 Near Blower Resistor T/O..............7
S215 Right Side of Instrument Panel...........7
S301 In Left Rear Door T/O.................8
S302 Near Left C-Pillar....................8
S303 Near Left C-Pillar....................8
S304 Near Left C-Pillar....................8
S305 Near Left C-Pillar....................8
S306 Near Left C-Pillar....................8
S307 Left Rear Wheel Well................10
S308 Left Rear Wheel Well................10
S309 Near Left Rear Door T/O...............8
S310 Near Left Rear Door T/O...............8
S311 Left Side of Floor Tunnel...............9
S312 Top of Floor Tunnel..................9
S313 In Power Mirror Switch T/O.............9
S314 Right A- Pillar.....................11
S315 Near RT Vanity Mirror T/O.............11
S316 Near RT Vanity Mirror T/O.............11
S317 In Trailer Tow Harness Near Grommet......14
S318 In Trailer Tow Harness Near Grommet......14
S319 In Liftgate.......................13
S320 Right A-Pillar.....................11
S321 In Left Front Door..................12
S401 In Left Rear Tail Lamp..........Not Shown
S402 In Right Rear Tail Lamp.........Not Shown
S403 In Left Rear Tail Lamp..........Not Shown
S404 In Right Rear Tail Lamp.........Not Shown
J8W-95 SPLICE LOCATIONSÐXJ VEHICLES 8W - 95 - 1