button JEEP CHEROKEE 1995 Service Owner's Manual

POWER LOCKS
CONTENTS
page page
DIAGNOSIS............................. 2
GENERAL INFORMATION.................. 1SERVICE PROCEDURES................... 8
GENERAL INFORMATION
Power locks are optional equipment on XJ (Chero-
kee) models. Power windows and the keyless entry
system are included on vehicles equipped with the
power lock option. All doors and the liftgate can be
locked and unlocked electrically by operating the
switch on either front door panel, or by operating the
lock and unlock buttons of the remote keyless entry
transmitter. The power lock and keyless entry sys-
tems operate with battery power supplied indepen-
dent of the ignition switch.
Following are general descriptions of the major
components in the power lock system. Refer to Group
8W - Wiring Diagrams for complete circuit descrip-
tions and diagrams. Refer to the owner's manual for
more information on the features and use of these
systems.
POWER LOCK SWITCH
The power locks are controlled by a two-way switch
mounted on the trim panel of each front door. The
switch controls battery feed to the lock and unlock
relays. The door lock switches can not be repaired. If
faulty, the entire switch must be replaced.
POWER LOCK/UNLOCK RELAYS
The power lock and unlock relays are located in the
relay center. The relay center is located on the lower
instrument panel reinforcement behind the lower in-
strument panel and just right of the steering column.
The relays respond to inputs from the power lock
switches and the keyless entry module by sending
the correct battery and ground feeds to the lock mo-
tors. The lock and unlock relays can not be repaired.
If faulty, they must be replaced.
POWER LOCK MOTOR
The locks are actuated by a reversible motor
mounted within each door. The motor direction iscontrolled by the battery and ground feeds from the
power lock/unlock relays. The motor can not be re-
paired. If faulty, the entire motor must be replaced.
KEYLESS ENTRY TRANSMITTER
The keyless entry transmitter is equipped with two
buttons labeled Lock and Unlock. It is also designed
to serve as a key fob and is equipped with a key ring.
Each transmitter has a different vehicle access code,
which must be programmed into the memory of the
keyless entry module in the vehicle in order to oper-
ate the locks. The operating range of the infrared
transmitter signal is up to 4.75 meters (15 feet) from
the receiver.
The transmitter operates on two CR1616 3-volt (or
equivalent) batteries. Typical battery life is from one
to two years.
KEYLESS ENTRY MODULE
The keyless entry module is mounted in a housing
on the headliner near the windshield between the
sunvisors, or inside and towards the rear of the over-
head console (if equipped). This module contains the
keyless entry receiver and program logic for the key-
less entry system.
The keyless entry module has a memory function
to retain the vehicle access code of at least one, and
up to four transmitters. The module receives input
from the remote keyless entry transmitter. In re-
sponse to that input, it is programmed to control out-
puts to the lock and unlock relays. The module can
not be repaired and, if faulty, must be replaced.
JPOWER LOCKS 8P - 1

POWER LOCK MOTOR
(1) Once it is determined which lock motor is inop-
erative, that motor can be tested. Disconnect the wire
connector at the motor. Apply 12 volts to the motor
terminals to check its operation in one direction. Re-
verse the polarity to check the operation in the other
direction. If OK, repair circuits to power lock/unlock
relays as required. If not OK, replace the motor.
(2) If all lock motors are inoperative, the problem
may be caused by one shorted motor. Disconnecting a
shorted motor will allow the good motors to operate.
Disconnect each motor connector, one at a time, and
re-check both lock and unlock functions while operat-
ing the door lock switch. If disconnecting one motor
causes the other motors to become functional, go
back to step 1 to test the disconnected motor.
KEYLESS ENTRY TRANSMITTER
(1) Depress either transmitter button and note
whether red Light-Emitting Diode (LED) on trans-
mitter case lights. If OK, go to next step. If not OK,
replace batteries as described under Keyless Entry
Transmitter in Service Procedures. Test transmitter
operation. If OK, discard faulty batteries. If not OK,
go to next step.
(2) Perform transmitter program procedure with
suspect transmitter and another known good trans-
mitter, as described in Service Procedures. Test oper-
ation with both transmitters. If both transmitters fail
to operate power locks, see Keyless Entry Module di-
agnosis. If known good transmitter operates power
locks and suspect transmitter does not, replace faulty
transmitter. Be certain to perform transmitter pro-
gram procedure again when replacing faulty trans-
mitter and to erase test transmitter access code from
keyless entry module.
KEYLESS ENTRY MODULE
(1) Check fuse 9 in fuseblock module. If OK, go to
next step. If not OK, replace fuse.
(2) Check for battery voltage at fuse 9. If OK, go to
next step. If not OK, repair circuit from power distri-
bution center.
(3) Access keyless entry module connectors as de-
scribed in Keyless Entry Module Remove/Install.
(4) Unplug module connector from module. Check
connector and receptacle in module for loose, cor-
roded, or damaged terminals and pins. If OK, go to
next step. If not OK, repair as required.
(5) Probe connector cavity for module terminal 1
and check for battery voltage. If OK, go to next step.
If not OK, repair circuit to fuse 9 as required.
(6) Install a jumper wire from connector cavity for
module terminal 1 to connector cavity for module ter-
minal 3. Doors should lock. If OK, go to step 8. If not
OK, go to next step.
(7) Check for continuity between connector cavity
for module terminal 3 and lock relay terminal 3 (86).
There should be continuity. If OK, replace lock relay.
If not OK, repair circuit as required.
(8) Install a jumper wire from connector cavity for
module terminal 1 to connector cavity for module ter-
minal 4. Doors should unlock. If OK, replace module.
If not OK, go to next step.
(9) Check for continuity between connector cavity
for module terminal 4 and unlock relay terminal 3
(86). There should be continuity. If OK, replace un-
lock relay. If not OK, repair circuit as required.
JPOWER LOCKS 8P - 7

SERVICE PROCEDURES
KEYLESS ENTRY TRANSMITTER
To replace transmitter batteries, separate transmit-
ter case by prying gently with a trim stick or other
wide flat-bladed tool at center seam (Fig. 2). Case
snaps open and shut. Replace with CR1616 3-volt
batteries or equivalent (Fig. 3).
TRANSMITTER PROGRAMMING PROCEDURE
(1) Open the driver's door of the vehicle. Leave it
open through the programming procedure.
(2) Move the mechanical door lock lever to the
LOCK position.
(3) Turn the ignition switch to the ON position.
(4) Within 20 seconds, aim a transmitter at the
keyless entry module receiver dome and press the
LOCK button for at least 5 seconds. Once the module
accepts the programming code, the driver's door will
unlock.
(5) Once the first transmitter has been pro-
grammed, additional transmitters (up to 4) may beprogrammed into the module. Within 20 seconds of
the previous transmitter programming, move the me-
chanical door lock lever to the LOCK position. Aim
another transmitter at the receiver dome and press
the LOCK button for at least 5 seconds. The door
lock will cycle again.
(6) To lock the programmed codes into the module,
the ignition switch must be turned OFF and back
ON within 20 seconds after programming the last
transmitter's code. At that time, all previous codes
are erased from the module.
POWER LOCK SWITCH REMOVE/INSTALL
(1) Remove the interior door latch release assem-
bly and control panel retaining screws (Fig. 4).
(2) Disconnect the control linkage and the wire
harness connector.
(3) Remove the latch release and control panel as-
sembly.
(4) The switch is retained to the panel with clips
(Fig. 5). Push in on the retainer part of the clip and
pry the clips.
(5) To install switch, position switch and press in
retainer clips until they snap into position. Reverse
remaining removal procedures to complete installa-
tion.
POWER LOCK MOTOR REMOVE/INSTALL
DOORS
(1) Remove interior door latch release assembly
and control panel retaining screws (Fig. 4).
(2) Disconnect control linkage and wire harness
connector.
(3) Remove latch release and control panel assem-
bly.
Fig. 2 Separate Transmitter Halves
Fig. 3 Battery Install
Fig. 4 Power Window/Lock Control Panel Remove/
Install
8P - 8 POWER LOCKSJ

POWER MIRRORS
CONTENTS
page page
DIAGNOSIS............................. 1
GENERAL INFORMATION.................. 1SERVICE PROCEDURES................... 4
GENERAL INFORMATION
Power outside rear view mirrors are an available
option on XJ (Cherokee) models. Following are gen-
eral descriptions of the major components in the
power mirror system. Refer to Group 8W - Wiring Di-
agrams for complete circuit descriptions and dia-
grams.
POWER MIRROR
The power mirrors are connected to battery feed at
all times. Each mirror head contains two electric mo-
tors, two drive mechanisms and the mirror glass.
One motor and drive controls mirror up-and-down
movement, and the other controls right-and-left
movement.
The mirror glass is the only serviced replacement
part for the power mirror assembly. If any other com-ponent of the mirror unit is faulty or damaged, the
entire assembly must be replaced.
POWER MIRROR SWITCH
Both the right and left mirror are controlled by a
multi-function switch located on the front of the cen-
ter console storage compartment, directly below the
armrest. The selector switch is moved right (right
mirror control), left (left mirror control), or center to
turn power mirrors off. Then one of four directional
control buttons is depressed to control movement of
the selected mirror up, down, right, or left. The
power mirror switch is serviced only as a complete
unit.
DIAGNOSIS
POWER MIRROR SYSTEM
(1) Check fuse 16 in Power Distribution Center
(PDC) and fuse 9 in fuseblock module. If OK, go to
next step. If not OK, replace fuse.
(2) Check for battery voltage at fuse 9 in fuseblock
module. If OK, go to next step. If not OK, repair cir-
cuit to fuse 16 in PDC.
(3) Remove power mirror switch from the center
console. See Power Mirror Switch Remove/Install.
(4) Disconnect wiring harness connector from
switch. Check for battery voltage at pink wire. If OK,
go to next step. If not OK, repair circuit to fuse 9 in
fuseblock module.
(5) Check for continuity between black wire in
switch harness connector and a good ground. There
should be continuity. If OK, go to next step. If not
OK, repair circuit to ground.
(6) Check switch continuity as shown in the Mirror
Switch Continuity charts. If OK, go to next step. If
not OK, replace switch.(7) See Power Mirror Switch illustration. Connect
a jumper wire from mirror switch connector cavity
for pin E to cavity for pin F. Now connect a second
jumper from connector cavity for pin G to each of the
following pin cavities: A, B, C, then D. In each case,
the selected mirror head should move. If OK, replace
switch. If not OK, go to next step.
(8) Remove door trim panel and unplug power mir-
ror connector inside door. Connect one jumper wire to
a good ground and a second jumper wire to a battery
feed. Connect other ends of jumpers to the mirror
side of connector in door (refer to Group 8W - Wiring
Diagrams for connector cavity identification). Mirror
head should move in each of the four directions. If
OK, repair wiring between mirror switch and door
connectors. If not OK, replace mirror.
JPOWER MIRRORS 8T - 1

(2) Wrap a single layer of plastic tape around the
pitman shaft threads and splines. This will protect
the replacement seals during installation.
(3) Install the seal with a suitable size socket.
(4) Remove the tape from the shaft.
(5) Center the steering gear.
(6) Align and install the pitman arm.
(7) Install the washer and retaining nut on the pit-
man shaft. Tighten the nut to 251 Nzm (185 ft. lbs.)
torque.
GEAR ADJUSTMENTS IN VEHICLE
REMOVE
(1) Raise and support the vehicle.
(2) Mark the pitman shaft and pitman arm for in-
stallation reference. Remove the pitman arm from
the shaft.
(3) Loosen the adjuster lock nut then back the ad-
juster plug off 1/4 turn.
(4) Remove the steering wheel horn pad.
(5) Turn the steering wheel in one direction until
stopped by the gear. Then turn back 1/2 turn.
CAUTION: Do not turn the steering wheel hard
against the internal stops when the linkage is re-
moved. This could result in damage to the recircu-
lating ball guides.
MEASURE
Place a low calibration (50 in. lbs.) torque wrench
and socket on the steering wheel nut. Rotate the
wrench and nut through a 90 degree arc (1/4 turn).
This will measure the worm shaft bearing preload.
ADJUST WORMSHAFT BEARING PRELOAD
TORQUE
(1) Adjust the preload by tightening the adjuster
plug. The preload should be 0.6 to 1 Nzm(5to8in.
lbs.) torque.
Steering column/shaft misalignment or damage will
increase the amount of torque required to rotate the
steering wheel. If the rotating torque is exceptionally
high, inspect the steering column/shaft alignment. If
the alignment is correct, remove the steering gear,
determine the cause of the high preload torque, and
repair as necessary.
(2) Tighten the adjuster locknut to 68 Nzm (50 ft.
lbs.) torque. Measure the preload torque. If neces-
sary, adjust the preload torque again.
ADJUST OVERCENTER DRAG TORQUE
(1) Turn the steering wheel from one stop to the
other and count the total numbers of turns. Turn the
wheel back in reverse direction 1/2 the total number
of turns to center the steering gear.(2) Turn the over center adjusting screw in to re-
move all lash between the ball nut and pitman shaft
sector teeth. Hold the adjustment screw and tighten
the lock nut to 34 Nzm (25 ft. lbs.) torque.
(3) Check the torque at the steering wheel by tak-
ing the highest reading as the wheel is turned
through the center position.
(4) The overcenter drag torque should be 0.5 to 1
Nzm (4 to 10 in. lbs.).
(5) If necessary, loosen the lock nut and adjust the
over center adjuster screw to obtain the proper
torque. Re-tighten the lock nut to the lock nut.
(6) After tightening the locknut, measure the over-
center drag torque again and readjust the torque, if
necessary.
INSTALL
(1) Align the installation reference marks and in-
stall the pitman arm.
(2) Install and tighten the pitman shaft nut and
washer to 251 Nzm (185 ft. lbs.) torque.
(3) Install the horn button.
GEAR DISASSEMBLY
(1) Rotate the wormshaft from stop-to-stop and
count the number of rotations. Rotate the wormshaft
in the reverse direction 1/2 of the total number of ro-
tations to center it and the ball nut.
(2) Remove the pitman shaft adjustment screw
locknut. Remove the cover retaining bolts, cover, and
gasket (Fig. 3).
(3) Slide the adjustment screw head (Fig. 3) out of
the pitman shaft T-slot and remove it and the
shim(s).
(4) Retain the shim(s) for end-play measurement
during assembly.
(5) Remove the pitman shaft, the wormshaft bear-
ing preload torque adjustment cap locknut, and the
adjustment cap (Fig. 2).
(6) Remove the wormshaft and the ball nut (Fig.
2).
(7) Remove (pry) the pitman shaft and the worm-
shaft seals from the steering gear housing (Fig. 3).
WORMSHAFT AND BALL NUT DISASSEMBLY
(1) Remove the upper bearing from the wormshaft
(Fig. 2).
CAUTION: Do not allow the ball nut to rotate freely
and travel to either extreme end of the wormshaft.
This could damage the tangs at the ends of the re-
circulating ball guides (Fig. 3).
(2) Remove the recirculating ball guide clamp re-
taining screws, the clamp and the guides (Fig. 2).
Separate the half-guides and place the recirculating
balls aside in a container.
JSTEERING 19 - 39

(2) Disconnect the battery negative (ground) cable
and isolate.
(3) Disarm the airbag (refer to group 8M, Electri-
cal for proper and safe procedures).
(4) Remove the air bag module and speed control
switch (if equipped) and disconnect the wire feeds
(Fig. 6).
(5) Disconnect the wire feed to the horn buttons.(6) Remove the steering wheel retaining nut. Score
or paint alignment marks on the column shaft and
steering wheel (if none exist) for installation refer-
ence.
(7) Remove the steering wheel with a universal
puller (Fig. 7).Do not hammer or jolt the steer-
ing column or shaft during removal of the
wheel.
INSTALLATION
(1) Install the steering wheel on column with the
scored marks or master splines aligned. Ensure the
wheel compresses the 2 lock tabs on the clockspring.
(2) Pull the speed control wires through the lower,
larger hole in the steering wheel. Pull the horn wire
through the smaller hole at the top.
(3) Install the retaining nut and tighten to 61 Nzm
(45 ft. lbs.) torque.Force the steering wheel down
on the shaft with the retaining nut only. Do not
hammer or shock the column with sudden im-
pact to install the wheel.
(4) Connect the wire feed to the horn buttons.
(5) Connect the wire feeds to the speed control
switch (Fig. 6). Tighten the air bag module nuts to 9
to 11 Nzm (80 to 100 in. lbs.) torque.
Fig. 5 Airbag Module Remove/Install
Fig. 6 Air Bag Module and Speed Control
19 - 50 STEERINGJ

(3) Place the ignition key cylinder in the ACCES-
SORY position.
(4) Remove shipping pin from plastic base.
(5) Connect the cable eyelet to the bellcrank pin
(Fig. 4).
(6) Place gear selector in PARK.
(7) Push the spring-loaded cable adjuster forward
and snap cable into bracket (Fig. 4).
(8) Push the cable adjuster lock clamp downward
to lock it.(9) Install the center console and related trim. Re-
fer to Group 23, Body.
(10) Test the park-lock cable operation.
(11) Load the steering column up to the bracket.
Refer to Column Assembly Replacement in this
group.
TEST/INSPECTION
(1) Turn the ignition switch key to the LOCK posi-
tion.
(2) Press inward on the gear selector handle re-
lease button, the button should not move.
(3) Turn the ignition switch key to the ON posi-
tion.
(4) Press inward on the gear selector handle re-
lease button.
(5) Move the gear selector handle to the DRIVE or
NEUTRAL position.
(6) Attempt to turn the ignition switch key to the
LOCK position.
(7) If the park-lock cable is correctly adjusted, the
key will not turn to the LOCK position.
(8) Press inward on the gear selector handle re-
lease button and move the gear selector handle to the
PARK position.
(9) Turn the ignition switch key to the LOCK posi-
tion. If the park-lock cable is correctly adjusted, the
key will turn to the LOCK position.
(10) If additional cable adjustment is required,
slide the adjuster forward or rearward to obtain the
correct position. Refer to Group 21, Transmission for
additional information involving shift cable adjust-
ment.
Fig. 4 Cable and Shifter
JSTEERING 19 - 57

PARK INTERLOCK CABLE ADJUSTMENT (XJ)
(1) Shift transmission into Park.
(2) Turn ignition switch to Lock position.
(3) Remove shift lever bezel and console screws.
Raise bezel and console for access to cable.(4) Pull cable lock button up to release cable (Fig.
4).
(5) Pull cable forward. Then release cable and
press cable lock button down until it snaps in place.
(6) Check adjustment as follows:
(a) Check movement of release shift handle but-
ton (floor shift) or release lever (column shift). You
should not be able to press button inward or move
column lever.
(b) Turn ignition switch to On position.
(c) Press floor shift lever release button or move
column lever. Then shift into Neutral. If cable ad-
justment is correct, ignition switch can not be
turned to Lock position. Perform same check with
transmission in D range.
(7) Move shift lever back to Park and check igni-
tion switch operation. You should be able to turn
switch to Lock position and shift lever release button/
lever should not move.
THROTTLE VALVE CABLE ADJUSTMENT (XJ/YJ)
The throttle valve cable controls throttle pressure
and kickdown on 30RH/32RH transmissions (Fig. 5).
Correct cable adjustment is important to proper
shifting. The cable positions the throttle valve which
controls shift speed, shift quality and part throttle
downshift sensitivity. If the setting is incorrect, shift
quality and shift speeds will be unsatisfactory.
Fig. 2 Gearshift Linkage (YJ)
Fig. 3 Shift Cable (XJ)
J30RH/32RH IN-VEHICLE SERVICE 21 - 101

THROTTLE VALVE CABLE ADJUSTMENT
PROCEDURE
Cable adjustment is performed entirely in the
engine compartment. It is not necessary to
raise the vehicle for access to any other compo-
nents.
(1) Shift transmission into Park and shut engine
off.
(2) Press cable release button (Fig. 6).
(3) Push cable conduit back into cable adjuster
body as far as possible (Fig. 7).(4) Rotate throttle body lever to wide open throttle
position. Cable will ratchet to correct adjustment
point as lever is rotated (Fig. 7).
FRONT BAND ADJUSTMENT
The front band adjusting screw is located on the
left side of the transmission case above the manual
valve and throttle valve levers.
(1) Raise vehicle.
(2) Loosen band adjusting screw locknut. Then
back locknut off 4-5 turns.
Fig. 5 Transmission Throttle Valve Cable
Fig. 4 Park Lock Cable Attachment (XJ)
Fig. 6 Throttle Valve Cable Components
21 - 102 30RH/32RH IN-VEHICLE SERVICEJ

(6) Apply bead of Loctite 599 sealer to oil pan seal-
ing surface. Sealer bead should be at least 3 mm (1/8
in.) wide. Then install pan and tighten pan bolts to 7
Nzm (65 in. lbs.) torque.
(7) Install new gasket on oil pan drain plug. Install
and tighten plug to 20 Nzm (15 ft. lbs.) torque.
(8) Connect cable to engine bracket and throttle
linkage.
(9) Fill transmission with Mopar Dexron/Mercon
IIE.
(10) Adjust the cable as described in cable adjust-
ment procedure.
TRANSMISSION THROTTLE CABLE ADJUSTMENT
(1) Shift transmission into Park, shut engine off
and raise hood.
(2) Press cable release button (Fig. 44).
(3) Push cable conduit back into cable sheath as
far as possible (Fig. 45).
(4) Rotate lever on throttle body to wide open
throttle position. Cable will ratchet to correct adjust-
ment point as lever is rotated (Fig. 45).
Fig. 43 Removing/Installing Transmission Throttle
Cable And Bracket
Fig. 41 Transmission Throttle Cable Attachment
Fig. 42 Removing/Installing Transmission Throttle
Cable
21 - 194 AW-4 IN-VEHICLE SERVICEJ