JEEP CHEROKEE 1994 Service Repair Manual

(14) Disconnect wire harness connector from the
window regulator.
(15) Remove remaining window regulator attach-
ing screws (Fig. 8).
(16) Remove window regulator.
INSTALLATION
(1) Place regulator inside door.
(2) Attach regulator to door using screws or the
hardware kit supplied with a new regulator. DO
NOT install the 2 screws that hold the bottom of the
regulator.
(3) Connect wire harness connector to regulator.
(4) Attach door glass with Torx head screw (Fig.
7). Tighten door glass screw to 3.3 Nzm (30 in. lbs.)
torque.
(5) Install the last 2 screws.
(6) Using 3M 08044 or 3M 08041 adhesive/sealant,
install plastic water dam sheet.
(7) Place trim panel in the installation position
and press in nylon retainers.
(8) Install the armrest.
(9) Install latch release assembly and control
panel.
Fig. 8 Window Regulator Removal
8S - 10 POWER WINDOWSJ

POWER MIRRORS
CONTENTS
page page
DIAGNOSIS............................. 1
GENERAL.............................. 1
POWER MIRROR REPLACEMENT........... 4POWER MIRROR SWITCH REPLACEMENT . . . 4
POWER MIRROR SWITCH TESTING......... 2
GENERAL
For information concerning wiring or connectors,
refer to Group 8W - Wiring Diagrams.
The mirror control switch contains two separate
switches, the operating switch and the selector
switch.
Each mirror has two reversible motors: one to ad-
just the mirror view up and down, the other to adjust
the mirror view right and left. The driver operates
three switches that control the polarity of the voltage
to the motors. The mirror select switch directs these
control voltages to either the right or left mirror.
The mirror select switch must be set to L or R to
direct current flow. If the mirror select switch is set
on R and the up-down switch is moved to the UP po-
sition, the voltage path is:
²through the U contact of switch 1
²to pin E
²to the up-down motor in the right mirror.
The ground path is:
²through pin D
²through the mirror select switch contacts
²to the U contacts of switch 3 and switch 2
²to pin F
²to ground.
The right motor runs and tilts the mirror up.
If the switch is pushed to the DOWN position, thesame motor receives voltage. Now the polarity is re-
versed, with pin E grounded. The motor runs in the
opposite direction.
The right mirror left-right motor operates in a sim-
ilar manner when the control switch is moved to the
L or R positions.
The left mirror works the same way as the right
mirror when mirror select switch is moved to L posi-
tion and control switch is operated.
DIAGNOSIS
For information concerning wiring or connectors,
refer to Group 8W - Wiring Diagrams.
²Open door. Dome lamps should light. If not, check
dome fuse.
Remove switch, unplug switch connector
²Measure resistance at mirror switch connector pin
F. Meter should read zero ohms, If not, repair open to
ground.
²Measure voltage at mirror switch connector pin G.
Meter should read battery voltage. If not, repair open
to dome fuse.
Install a jumper lead from pin E to pin F.
²Connect a jumper lead from pin G to: pin A; pin B;
pin C and then pin D. If the mirror moves, replace
switch. If not, repair open to motor and/or replace
motor.
JPOWER MIRRORS 8T - 1

POWER MIRROR SWITCH TESTING
POWER MIRROR SWITCH
8T - 2 POWER MIRRORSJ

SWITCH TEST WITH SWITCH IN LEFT (L) POSITION
SWITCH TEST WITH SWITCH IN RIGHT (R) POSITION
JPOWER MIRRORS 8T - 3

POWER MIRROR SWITCH REPLACEMENT
(1) Using a wide flat blade tool, pry the switch
housing away from the center console (Fig. 1).
(2) Disconnect switch connector and remove
switch.
(3) To install a new switch, reverse the removal
procedure.
POWER MIRROR REPLACEMENT
(1) Remove interior door latch release assembly
and control panel retaining screws (Fig. 2).
(2) Disconnect control linkage and wire harness
connector.
(3) Remove latch release and control panel assem-
bly.
(4) Remove armrest lower retaining screws.(5) Swing armrest downward to a vertical position.
This is necessary to disconnect the armrest from the
upper retainer clip (Fig. 3).
(6) Pull the armrest straight out from the trim
panel.
(7) Remove the trim panel with a wide flat blade
tool (Fig. 4).
To aid in removal of the trim panel, start at
the bottom of the panel.
Fig. 1 Power Mirror Switch Removal/InstallationÐXJ
Fig. 2 Power Window Control Panel Removal/
Installation
Fig. 3 Armrest Retainer Clip
Fig. 4 Trim Panel Removal
8T - 4 POWER MIRRORSJ

(8) Remove screw holding mirror trim cover (Fig.
5).
(9) Disconnect power mirror wire harness at con-
nector in door.(10) Pull harness up through door.
(11) Remove 3 screws holding mirror to door (Fig.
6).
(12) To install a power mirror, reverse the removal
procedure.
Fig. 5 Power Mirror Trim CoverÐXJ
Fig. 6 Power Mirror Removal/InstallationÐXJ
JPOWER MIRRORS 8T - 5

CHIME/BUZZER WARNING SYSTEMS
CONTENTS
page page
GENERAL.............................. 1
IGNITION KEY WARNING SWITCH REPLACEMENT.4OPERATION/DIAGNOSIS.................. 1
GENERAL
The buzzer or optional chime module is mounted on
the left side of the fuse block (above and to the left of
the brake/clutch pedal). The buzzer or chime sounds
an audible warning tone in any of the following con-
ditions:
²Vehicle lights are ON when the ignition has been
switched OFF and the key is removed and then the
driver's door is opened (except YJ).²The key is in the ignition and the driver's door is
open (On some vehicles, the buzzer will not sound if
the ignition switch is in the ON position).
²The ignition is switched ON and the driver's seat
belt is not buckled. Buzzer will quit after 4 to 8 sec-
onds. Besides the buzzer, a seat belt indicator lamp
turns on as a reminder to fasten seat belt.
OPERATION/DIAGNOSIS
OPERATION
Battery voltage for module operation is supplied to
two pins. Voltage is always present at pin 7. Pin 1
receives voltage when the ignition switch is in the
ON or START position.
SEAT BELT WARNING
The seat belt warning system uses both visual and
audible signals. These consist of a buzzer that is part
of a combined seat belt and key warning buzzer and
a red light on the instrument panel.
The system will always illuminate the seat belt
warning lamp for four to eight seconds when the ig-
nition switch is turned to the ON position. Also, only
if the driver does not fasten his seat belt, the buzzer
will sound during the same time interval. Passenger
belts are not connected to the system.
A timed buzzer-relay is used to operate the system
for the time period. It has a time delay mechanism
and buzzer assembly. Only the driver's seat belt
buckle has a switch that is connected to the system.
KEY-IN-IGNITION WARNING
To sound the key-in-ignition warning, the following
must occur:
²the ignition key warning switch must be closed
²the driver's door jamb switch must be closed.
These conditions ground pin 6 of the module. These
switches are closed when the key is in the ignition
and the driver's door is open.On some vehicles the chime/buzzer will not
sound if the door is open and the key is in the
ON position.
LIGHTS-ON WARNING (EXCEPT YJ)
To sound the lights-on warning, the following must
occur:
²the headlamp switch must be closed
²the driver's door jamb switch must be closed.
These conditions ground pin 6 of the module. These
switches are closed when the headlamp switch is ON
and the driver's door is open.
DIAGNOSIS
If the buzzer/chime unit does not operate as de-
scribed, check the two fuses for pins 1 and 7 (Figs. 1
and 2) and replace as required. If the fuses are not
defective, perform the following tests to determine if
the problem is in the module or in the wiring. Using
a flat head screwdriver, release the locking plastic
clip while carefully pulling out the module. Plug in a
known good module and check its operation. If the
problem is not corrected by replacing the module, re-
move the module and continue as follows:
VOLTAGE TESTS
Ignition in ON position, measure between the
following pins and vehicle ground.
²Measure voltage at buzzer/chime module connector
pin 1. Meter should read battery voltage. If not, re-
pair open to ignition switch.
Turn ignition OFF and remove the key from the ig-
nition.
JCHIME/BUZZER WARNING SYSTEMS 8U - 1

²Measure voltage at buzzer/chime module connector
pin 7. Meter should read battery voltage. If not, re-
pair open to fuse.
RESISTANCE TESTS
CAUTION: Before using an ohmmeter, turn ignition
switch OFF and disconnect negative cable from bat-
tery to avoid damaging the meter.
Measure between the following pins and vehi-
cle ground.
²Buzzer/chime module connector pin 2. Meter
should read almost zero ohms (bulb filament). If not,
replace seat belt indicator bulb.
²Buzzer/chime module connector pin 3. Meter
should read zero ohms. If not, repair open to ground.
²Buzzer/chime module connector pin 4. Drivers seat
belt not buckled. Meter should read zero ohms. If not,
repair open to ground (or buckle switch may be de-
fective). Meter should read open circuit if drivers
seat belt is buckled. If not, repair short to ground (or
buckle switch may be defective).
²Buzzer/chime module connector pin 6. Open driv-
er's door, key in ignition (in OFF position). Meter
should read zero ohms. If not, repair open to ground.
²Buzzer/chime module connector pin 6. Remove key
from ignition. Open driver's door, headlamp switch
ON (except YJ), meter should read zero ohms. If not,
repair open to ground.
Fig. 2 Buzzer Module Terminal Identification
Fig. 1 Buzzer Module Connector Terminal
IdentificationÐPin Side
8U - 2 CHIME/BUZZER WARNING SYSTEMSJ

Fig. 4 Buzzer Module SchematicÐYJFig. 3 Buzzer Module SchematicÐXJ
JCHIME/BUZZER WARNING SYSTEMS 8U - 3