JEEP YJ 1995 Service And Repair Manual

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 power door lock switch can operate the
Unlock and Lock relays.
LOCK RELAY
Circuit A7 from fuse 3 in the Power Distribution
Center (PDC) powers circuits P37 and P38 through
fuse 6 in the fuse block. When either power door lock
switch is put in the LOCK position, the switch con-
nects circuit P38 to circuit P35. 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 A7 from fuse 3 in the Power Distribution
Center (PDC) powers circuits P37 and P38 through
fuse 6 in the fuse block. When either power door lock
switch is put in the UNLOCK position, the switch
connects circuit P38 to circuit P36. Circuit P36 sup-
plies power to the coil side of the unlock relay, caus-
ing the relay contacts 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.
DIAGRAM INDEX
Component Page
Fuse 3 (PDC)...........................8W-61-2
Fuse 6 (Fuse Block).......................8W-61-2
Liftgate Lock Motor.......................8W-61-3
Power Door Lock Motors...................8W-61-3
Power Door Lock Relay....................8W-61-2
Power Door Lock Switches..................8W-61-2
Power Door Unlock Relay...................8W-61-2
J8W-61 POWER DOOR LOCKSÐXJ-RHD 8W - 61 - 1

POWER MIRRORS
INDEX
page page
Diagram Index............................ 1
Heater Elements........................... 1Power Mirrors............................. 1
POWER MIRRORS
Four switches operates the left and right power
mirrors. One switch selects right or left mirror. Each
mirror has two motors; a LEFT/RIGHT motor and a
UP/DOWN motor. The motors switch polarity to al-
low mirror adjustment.
Circuit A7 from fuse 13 in the Power Distribution
Center (PDC) supplies battery voltage to fuse 8 in
the fuse block. Fuse 8 supplies voltage to circuit P60.
Circuit P60 powers the power mirror switch. Circuit
Z1 connects to the power mirror switch and supplies
ground for the power mirror system.
RIGHT POWER MIRROR OPERATION
In the right position, the power mirror switch sup-
plies power to the right mirror LEFT/RIGHT motor
on circuit P79 when a rightward adjustment is made.
Circuit P77 provides the ground path the for right-
ward adjustments.
When the operator makes leftward adjustment, po-
larity reverses. For leftward adjustments, the switch
supplies battery voltage to the right mirror LEFT/
RIGHT motor on circuit P77. Circuit P79 supplies
ground for leftward adjustments.
During upward adjustments, the switch supplies
voltage to the right mirror UP/DOWN motor on cir-
cuit P79. Circuit P80 supplies ground during upward
adjustments.
For downward adjustments, the polarity is re-
versed, the switch powers the right mirror UP/
DOWN motor on circuit P80. Circuit P79 supplies the
ground path.
LEFT POWER MIRROR OPERATION
In the left position, the power mirror switch sup-
plies power to the left mirror LEFT/RIGHT motor on
circuit P79 when a rightward adjustment is made.
Circuit P81 provides the ground path the for right-
ward adjustments.
When the operator makes leftward adjustment, po-
larity reverses. For leftward adjustments, the switch
supplies battery voltage the left mirror LEFT/RIGHT
motor on circuit P81. Circuit P79 supplies ground for
leftward adjustments.
During upward adjustments, the switch supplies
voltage to the left mirror UP/DOWN motor on circuit
P79. Circuit P78 supplies ground during upward ad-
justments.For downward adjustments, the polarity is re-
versed, the switch powers the left mirror UP/DOWN
motor on circuit P78. Circuit P79 supplies the ground
path.
HELPFUL INFORMATION
²Check fuse 3 in the PDC and fuse 8 in the fuse
block in the PDC
HEATER ELEMENTS
The heated rear window relay powers the heater
elements in power mirrors. When the relay energizes,
it supplies power to the heater elements on circuit
C15. Circuit Z1 provides ground for the power mirror
heater elements.
HELPFUL INFORMATION
²Circuit F82 from fuse 2 in the fuse block powers
circuit C15 when the heated rear window relay ener-
gizes.
²Circuit A4 from fuse 7 in the Power Distribution
Center (PDC) supplies battery voltage to the fuse
block for fuse 2 and circuit F85.
²Check fuse 2 in the fuse block.
²Check fuse 7 in the PDC.
DIAGRAM INDEX
Component Page
Fuse 1 (Fuse Block).......................8W-63-2
Fuse 3 (PDC)...........................8W-63-2
Power Seat............................8W-63-2
Power Seat Switch.......................8W-63-2
Fuse 2 (Fuse Block).......................8W-62-3
Fuse 3 (PDC)...........................8W-62-2
Fuse 7 (Fuse Block).......................8W-62-2
Fuse 7 (PDC)...........................8W-62-3
Fuse 8 (Fuse Block).......................8W-62-2
Fuse 16 (PDC)..........................8W-62-2
Heated Rear Window Relay..................8W-62-3
Power Mirrors..........................8W-62-2
Power Mirror Heater Elements................8W-62-3
Power Mirror Switch......................8W-62-2
J8W-62 POWER MIRRORSÐXJ-RHD 8W - 62 - 1

POWER SEAT
POWER SEAT
Battery voltage for the power seat system is sup-
plied by circuit A11 from fuse 1 in the fuse block. Cir-
cuit A11 is HOT at all times and supplies battery
voltage to the power seat switch.
A BUS bar internal to the power seat switch con-
nects the power from circuit A11 to the switches.
Grounding for the seat system is supplied on circuit
Z1.
The motors located under the seat are protected by
circuit breakers wired in with the motors. Each mo-
tor has its own circuit breaker.
When the operator selects the FRONT VERTICAL
UP function, power is passed on the A11 circuit
through the closed contacts in the switch to the S5
circuit. The S5 circuit connects to the motor. Ground
is provided on the S6 circuit back to the switch. A
ground BUS bar internal to the switch then connects
to the Z1 circuit.
For FRONT VERTICAL DOWN function the cir-
cuits are reversed. S6 is the feed and S5 is the
ground.
When the operator selects the SEAT FORWARD
function, power is passed on the A11 circuit through
the closed contacts in the switch to the S3 circuit.
The S3 circuit connects to the motor. Ground is pro-
vided on the S4 circuit back to the switch. A ground
BUS bar internal to the switch then connects to the
Z1 circuit.
For SEAT REARWARD function the circuits are re-
versed. S4 is the feed and S3 is the ground.When the operator selects the REAR VERTICAL
UP function, power is passed on the A11 circuit
through the closed contacts in the switch to the S1
circuit. The S1 circuit connects to the motor. Ground
is provided on the S2 circuit back to the switch. A
ground BUS bar internal to the switch then connects
to the Z1 circuit.
For REAR VERTICAL DOWN function the circuits
are reversed. S2 is the feed and S1 is the ground.
When the operator selects the SEAT UP function
power is passed on the A11 circuit through the closed
contacts in the switch to the S1 and S5 circuits. The
S1 circuit connects to the rear UP/DOWN motor, and
S5 connects to the front UP/DOWN motor. Ground is
provided on the S2 and S6 circuits back to the
switch. A ground BUS bar internal to the switch then
connects to the Z1 circuit.
For SEAT DOWN function the circuits are re-
versed. S2 and S6 circuits are the feeds and S1 and
S5 are the grounds.
DIAGRAM INDEX
Component Page
Fuse 1 (Fuse Block).......................8W-63-2
Fuse 3 (PDC)...........................8W-63-2
Power Seat............................8W-63-2
Power Seat Switch.......................8W-63-2
J8W-63 POWER SEATÐXJ-RHD 8W - 63 - 1