Power JEEP GRAND CHEROKEE 2002 WJ / 2.G Workshop Manual

POSITION SENSOR
DESCRIPTION
The transfer case position sensor (Fig. 95) is an
electronic device whose output can be interpreted to
indicate the transfer case's current operating mode.
The sensor consists of a five position, resistive multi-
plexed circuit which returns a specific resistance
value to the Powertrain Control Module (PCM) for
each transfer case operating mode. The sensor is
located on the top of the transfer case, just left of the
transfer case centerline and rides against the sector
plate roostercomb. The PCM supplies 5VDC (+/-
0.5V) to the sensor and monitors the return voltage
to determine the sector plate, and therefore the
transfer case, position.
OPERATION
During normal vehicle operation, the Powertrain
Control Module (PCM) monitors the transfer case
position sensor return voltage to determine the oper-
ating mode of the transfer case. Refer to the Operat-
ing Mode Versus Resistance table for the correct
resistance for each position (Fig. 96).
OPERATING MODE VERSUS RESISTANCE
SENSOR POSITION OPERATING MODE SENSOR RESISTANCE (ohms)
1 2WD 1124-1243
2 4WD PART TIME 650-719
3 4WD FULL TIME 389-431
4 NEUTRAL 199-221
5 4WD LOW 57-64
Fig. 96 Position Sensor Linear Movement
1 - POSITION 1 - 10mm  0.5mm
2 - POSITION 2 - 12mm  0.5mm
3 - POSITION 3 - 14mm  0.5mm
4 - POSITION 4 - 16mm  0.5mm
5 - POSITION 5 - 18mm  0.5mm
6 - POSITION 6 - 20mm 0.5mm - FULL EXTENSION
Fig. 95 Transfer Case Position Sensor and
Connector
1 - TRANSFER CASE POSITION SENSOR CONNECTOR
2 - TRANSFER CASE POSITION SENSOR
3 - TRANSFER CASE
4 - OUTPUT SPEED SENSOR CONNECTOR
WJTRANSFER CASE - NV242 21 - 311

TRANSFER CASE - NV247
TABLE OF CONTENTS
page page
TRANSFER CASE - NV247
DESCRIPTION........................315
OPERATION..........................316
DIAGNOSIS AND TESTING - TRANSFER
CASE - NV247.......................316
REMOVAL............................317
DISASSEMBLY........................317
CLEANING...........................324
INSPECTION.........................324
ASSEMBLY...........................326
INSTALLATION........................335
SPECIFICATIONS
TRANSFER CASE - NV247.............336
SPECIAL TOOLS
TRANSFER CASE - NV247.............337FLUID
STANDARD PROCEDURE - FLUID DRAIN/
REFILL............................338
FRONT OUTPUT SHAFT SEAL
REMOVAL............................338
INSTALLATION........................338
REAR RETAINER BUSHING AND SEAL
REMOVAL............................339
INSTALLATION........................339
SHIFT CABLE
REMOVAL............................340
INSTALLATION........................340
TRANSFER CASE - NV247
DESCRIPTION
The NV247 (Fig. 1) is an on-demand 4-wheel drive
transfer case with two operating ranges and a neu-
tral position. Operating ranges are 4-high and 4-low.
The 4-low range is used for extra pulling power in
off-road situations.
TRANSFER CASE IDENTIFICATION
A circular I.D. tag is attached to the rear case of
each NV247 transfer case (Fig. 2). The tag indicates
the following information:
²Model number
²Serial number
²Assembly number
²Gear ratio
²Location of manufacture
The transfer case serial number also represents
the date of build.
Fig. 1 NV247 Transfer Case
Fig. 2 Transfer Case I.D. Tag
1 - FILL PLUG
2 - I.D. TAG
3 - DRAIN PLUG
WJTRANSFER CASE - NV247 21 - 315

DECKLID/HATCH/LIFTGATE/TAILGATE
TABLE OF CONTENTS
page page
EXTERIOR HANDLE
REMOVAL.............................5
INSTALLATION..........................5
FLIP-UP GLASS
REMOVAL.............................5
INSTALLATION..........................6
FLIP-UP GLASS LATCH
REMOVAL.............................6
INSTALLATION..........................6
FLIP-UP GLASS LATCH STRIKER
REMOVAL.............................7
INSTALLATION..........................7
FLIP-UP GLASS SWITCH
REMOVAL.............................7
INSTALLATION..........................7
HINGE
REMOVAL.............................7
INSTALLATION..........................7
LATCH
REMOVAL.............................8
INSTALLATION..........................8LATCH STRIKER
REMOVAL.............................8
INSTALLATION..........................8
LIFTGATE
REMOVAL.............................9
INSTALLATION..........................9
ADJUSTMENTS
LIFTGATE ADJUSTMENT................9
TRIM PANEL
REMOVAL
REMOVAL - LIFTGATE TRIM PANEL........9
REMOVAL - LOWER LIFTGATE OPENING
TRIM PANEL.........................10
INSTALLATION
INSTALLATION - LIFTGATE TRIM PANEL . . . 10
INSTALLATION - LOWER LIFTGATE
OPENING TRIM PANEL.................10
LIFTGATE INSULATOR
REMOVAL.............................10
INSTALLATION.........................10
EXTERIOR HANDLE
REMOVAL
(1) Remove the liftgate trim panel refer to (Refer
to 23 - BODY/DECKLID/HATCH/LIFTGATE/TAIL-
GATE/TRIM PANEL - REMOVAL).
(2) Remove the latch, outside handle linkage, and
power lock connector.
(3) Remove the fasteners attaching the outside
handle to the liftgate.
(4) Remove the outside handle from the liftgate.
INSTALLATION
(1) Position the outside handle on the liftgate.
(2) Install the fasteners attaching outside handle
to liftgate.
(3) Connect outside handle link and power lock
connector.
(4) Install liftgate trim panel, refer to (Refer to 23
- BODY/DECKLID/HATCH/LIFTGATE/TAILGATE/
TRIM PANEL - INSTALLATION).
FLIP-UP GLASS
REMOVAL
CAUTION: DO NOT DISCONNECT THE PROP ROD
CYLINDERS WITH THE LIFTGATE FLIP UP GLASS
CLOSED. THE PROP ROD PISTONS ARE OPER-
ATED BY HIGH PRESSURE GAS. THIS PRESSURE
COULD CAUSE DAMAGE AND/OR PERSONAL
INJURY IF THEY ARE REMOVED WHILE THE PIS-
TONS ARE COMPRESSED.
(1) Using a trim stick or other suitable device, sep-
arate the flip up glass hinge cover from the hinge on
the liftgate (Fig. 1).
(2) Open liftgate flip up glass. Support the glass
for ease of repair.
(3) Using a small flat blade or equivalent tool, gen-
tly pry open the locking caps on the end of the prop
rods.
(4) Remove prop rod cylinders from ball studs.
(5) Lower the flip up glass.
(6) Remove hinge fasteners from liftgate.
(7) Separate flip up glass from liftgate.
WJDECKLID/HATCH/LIFTGATE/TAILGATE 23 - 5

LATCH
REMOVAL
(1) Raise the liftgate.
(2) Remove the liftgate trim panel (Fig. 3).
(3) Disconnect the power connector.
(4)
Disconnect the outside handle link from the latch.
(5) Remove the latch screws and remove latch.
INSTALLATION
(1) Install the latch into the liftgate and tighten
the screws to 7N´m (5 ft. lbs.).
(2)
Connect the outside handle to the liftgate latch.
(3) Plug in the connector for the power.
(4) Install the liftgate trim panel.
LATCH STRIKER
REMOVAL
(1) Raise liftgate.
(2) Remove tail lamp, refer to (Refer to 8 - ELEC-
TRICAL/LAMPS/LIGHTING - EXTERIOR/TAIL
LAMP - REMOVAL).
(3)
Remove nuts attaching striker to D-pillar (Fig. 4).
(4) Separate striker from D-pillar.
INSTALLATION
(1) Position striker on D-pillar.
(2) Install nuts attaching striker to D-pillar. Tighten
nuts to 10 N´m (7 ft. lbs.) torque (Fig. 4).
(3) Install tail lamp (Refer to 8 - ELECTRICAL/
LAMPS/LIGHTING - EXTERIOR/TAIL LAMP -
INSTALLATION).
Fig. 3 LIFTGATE LATCH
1-LATCH
2 - LIFTGATE
3 - CONNECTOR
4 - ACTUATOR5 - CLIP
6 - OUTSIDE HANDLE TO LATCH ROD
7 - OUTSIDE HANDLE
Fig. 4 Liftgate Latch Striker
1 - D-PILLAR
2 - STRIKER
23 - 8 DECKLID/HATCH/LIFTGATE/TAILGATEWJ

INSTALLATION
(1) Connect lock cylinder switch, if equipped.
(2) Position lock cylinder in door handle.
(3) Position lock cylinder retainer and install
screw (Fig. 13).
(4) Install outside door handle, refer to (Refer to
23 - BODY/DOOR - FRONT/EXTERIOR HANDLE -
INSTALLATION).
TRIM PANEL
REMOVAL
(1) Remove trim plug from mirror flag bezel.
(2) Remove screws attaching trim panel to door
(Fig. 14).
(3) Using trim remover (C-4829 or equivalent),
detach trim panel perimeter push-in fasteners from
door inner panel.
(4) Lift trim panel upward and separate from door.
(5) If equipped, disconnect harness connectors for
power accessories.
(6) Disconnect latch rods from inside handle actua-
tor.
(7) Separate trim panel from vehicle.
INSTALLATION
(1) Connect latch rods to inside handle actuator.
(2) If equipped, connect harness connectors to
power accessories.
(3) Position trim panel on door inner panel.
(4) Press trim panel push-in fasteners inward
around perimeter of door.
(5) Install screws attaching trim panel to door
(Fig. 14).
(6) Install trim plug in mirror flag bezel.
WATERDAM
REMOVAL
(1) Remove door trim panel, refer to (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - REMOVAL).
(2) Peel the waterdam from door.
(3) Route all harnesses and linkage rods through
waterdam as necessary.
(4) Separate waterdam from door (Fig. 15).
INSTALLATION
(1) Waterdam contact surface must be free of con-
taminants. Clean as necessary.
(2) Route all harnesses and linkage rods through
waterdam as necessary.
(3) Position waterdam on door and align all holes.
(4) Press waterdam on door (Fig. 15).
(5) Install door trim panel, refer to (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - INSTALLA-
TION).Fig. 14 Front Door Trim Panel
1 - HARNESS CONNECTOR
2 - NUTSERT
3 - TRIM PLUG
4 - TRIM PANEL
5 - PUSH-IN FASTENER
6 - HARNESS CONNECTOR
7 - LATCH RODS
Fig. 15 Front Door Waterdam
1 - INSULATOR PAD
WJDOOR - FRONT 23 - 17
LOCK CYLINDER (Continued)

WINDOW REGULATOR
REMOVAL
(1) Remove front door glass, refer to (Refer to 23 -
BODY/DOOR - FRONT/DOOR GLASS - REMOVAL).
(2) Loosen bolts attaching regulator to inner door
panel (Fig. 16).
(3) Remove bolt attaching regulator to inner door
panel (Fig. 17).
(4) Lift regulator upward to disengage bolts from
door inner panel.
(5) Disengage power window regulator harness
connector, if equipped.
(6) Remove regulator through access hole in door.
INSTALLATION
(1) Position regulator in door through access hole.
(2) Engage power window regulator harness con-
nector, if equipped.
(3) Lift regulator upward and engage bolts in door
inner panel key hole slots.
(4) Install bolt attaching regulator to inner door
panel.
(5) Tighten bolts attaching regulator to inner door
panel.
(6) Install front door glass, refer to (Refer to 23 -
BODY/DOOR - FRONT/GLASS RUN CHANNEL -
INSTALLATION).
Fig. 16 Front Door Regulator Bolts
1 - FRONT DOOR
2 - REMOVE BOLT
3 - LOOSEN BOLTS
Fig. 17 Front Door Window Regulator
1 - FRONT DOOR
2 - REGULATOR
23 - 18 DOOR - FRONTWJ

LATCH STRIKER
REMOVAL
(1) Remove screws attaching striker to C-pillar
(Fig. 8).
(2) Separate striker and spacer from vehicle.
INSTALLATION
(1) Position striker and spacer on C-pillar.
(2) Install screws. Tighten to 28 N´m (250 in. lbs.)
torque.
TRIM PANEL
REMOVAL
(1) Remove screws attaching trim panel to door
(Fig. 9).
(2) Using trim remover (C-4829 or equivalent),
detach trim panel perimeter push-in fasteners from
door inner panel.
(3) Lift trim panel upward and separate from door.
(4) If equipped, disconnect harness connectors for
power accessories.
(5)
Disconnect latch rods from inside handle actuator.
(6) Separate trim panel from vehicle.
INSTALLATION
(1) Connect latch rods to inside handle actuator.(2) If equipped, connect harness connectors to
power accessories.
(3) Position trim panel on door inner panel.
(4) Press trim panel push-in fasteners inward
around perimeter of door.
(5)
Install screws attaching trim panel to door (Fig. 9).
WATERDAM
REMOVAL
(1) Remove door trim panel, refer to (Refer to 23 -
BODY/DOORS - REAR/TRIM PANEL - REMOVAL).
(2) Peel the waterdam from door.
(3) Route all harnesses and linkage rods through
waterdam as necessary.
(4) Separate waterdam from door (Fig. 10).
Fig. 8 Rear Door Latch Striker
1 - TAPPING PLATE
2 - SPACER
3 - STRIKER
Fig. 9 Rear Door Trim Panel
1 - TRIM PANEL
2 - NUTSERT
3 - HARNESS CONNECTOR
4 - LATCH RODS
Fig. 10 Rear Door Waterdam
1 - INSULATOR PAD
WJDOORS - REAR 23 - 23

INSTALLATION
(1) Waterdam contact surface must be free of con-
taminants. Clean as necessary.
(2) Route all harnesses and linkage rods through
waterdam as necessary.
(3) Position waterdam on door and align all holes
(Fig. 10).
(4) Press waterdam on door.
(5) Install door trim panel, refer to (Refer to 23 -
BODY/DOORS - REAR/TRIM PANEL - INSTALLA-
TION).
WINDOW REGULATOR
REMOVAL
(1) Remove waterdam, refer to (Refer to 23 -
BODY/DOORS - REAR/WATERDAM - REMOVAL).
(2) Remove the stationary glass, refer to (Refer to
23 - BODY/STATIONARY GLASS/DOOR GLASS -
REMOVAL).
(3) Raise the door glass and support.
(4) Disconnect the speaker harness and power win-
dow harness, if equipped.
(5) Remove the window clips retaining regulator
(Fig. 11).
(6) Remove the door glass.
(7) Remove the fasteners retaining the regulator
(Fig. 12).
(8) Remove the regulator.
INSTALLATION
(1) Position the window regulator in the door.
(2) Install the fasteners retaining the regulator
(Fig. 12).
(3) Install the door glass.
(4) Install the window clips retaining regulator
(Fig. 11).
(5) Lower the door glass.
(6) Install the stationary glass, refer to (Refer to
23 - BODY/STATIONARY GLASS/DOOR GLASS -
INSTALLATION).
(7) Connect the power window and speaker har-
ness if equipped.
(8) Install the waterdam, refer to (Refer to 23 -
BODY/DOORS - REAR/WATERDAM - INSTALLA-
TION).
(9) Cycle the glass and check for proper operation.
Fig. 11 Window Regulator Retainer Clips
1 - GLASS
2 - RETAINER
3 - CLIP
4 - LIFT PLATE
5 - REGULATOR
6 - CLIP
Fig. 12 Rear Door Window Regulator
1 - DOOR
2 - REGULATOR
23 - 24 DOORS - REARWJ
WATERDAM (Continued)

(4) Remove the screws attaching the supports to
the roof panel.
(5) Separate the supports from the roof panel.
NOTE: If a crossbar needs to be serviced, the for-
ward or rearward supports will have to be removed.
INSTALLATION
(1) Position the supports on the roof panel and
install the screw. Be sure that the gasket is properly
seated.
(2) Position the luggage rack on the supports.
(3) Install the screws attaching the side rails to
the supports.
(4) Position the supports covers on the supports
and press into place.
SIDE VIEW MIRROR GLASS
REMOVAL
(1) With damaged mirror still on vehicle, position
mirror glass down and centered.
(2) Position a wide leverage device between the
bottom edge of the glass and the mirror shell.
(3) Firmly apply pressure in an upward direction
until glass assembly disengages from adapter plate.
(4) Disconnect the heater wire terminal, if
equipped, or the EC plug, if equipped.
INSTALLATION
(1) Connect the heater wire terminal or the EC
plug, if equipped.
(2) Position the replacement glass in the mirror
shell and align the four snap tabs with the four cav-
ities in the shell.
(3) Apply firm pressure inward until the replace-
ment glass assembly engages with the adapter plate.
Correct assembly will result in a firm click. Glass
assembly should exhibit even gaps to the shell when
complete.
(4) Pull lightly on corners of glass assembly to
ensure all four snaps are engaged and there is no
free play.
SIDE VIEW MIRROR
REMOVAL
(1) Remove door trim panel, refer to (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - REMOVAL).
(2) Disengage power mirror harness connector, if
equipped.
(3) Remove mirror flag seal.
(4) Remove nuts attaching mirror to door (Fig. 11).
(5) Separate mirror from door.
INSTALLATION
(1) Position mirror on door. Verify that gasket seal
is properly positioned.
(2) Install nuts attaching mirror to door (Fig. 11).
(3) Install mirror retaining nuts.
(4) Install mirror flag seal.
(5) Engage power mirror harness connector, if
equipped.
(6) Install door trim panel, refer to (Refer to 23 -
BODY/DOOR - FRONT/TRIM PANEL - INSTALLA-
TION).
Fig. 11 Side View Mirror
1 - SIDEVIEW MIRROR
2 - MIRROR FLAG SEAL
3 - CONNECTOR
WJEXTERIOR 23 - 31
LUGGAGE RACK (Continued)

INSTRUMENT PANEL SYSTEM
TABLE OF CONTENTS
page page
INSTRUMENT PANEL SYSTEM
REMOVAL.............................37
INSTALLATION.........................43
CLUSTER BEZEL
REMOVAL.............................45
INSTALLATION.........................45
GLOVE BOX
STANDARD PROCEDURE - GLOVE BOX
ROLL DOWN.........................46
REMOVAL.............................47
INSTALLATION.........................47
GLOVE BOX LATCH
REMOVAL.............................48
INSTALLATION.........................48
GLOVE BOX LATCH STRIKER
REMOVAL.............................49
INSTALLATION.........................49
INSTRUMENT PANEL END CAP
REMOVAL.............................50
INSTALLATION.........................50
INSTRUMENT PANEL STUCTURAL DUCT
REMOVAL.............................51
INSTALLATION.........................51
INSTRUMENT PANEL TOP COVER
REMOVAL.............................51
INSTALLATION.........................52
INSTRUMENT PANEL TOP PAD
REMOVAL.............................52
INSTALLATION.........................54
INSTRUMENT PANEL C-CHANNEL COVER
BRACKET
REMOVAL.............................56
INSTALLATION.........................56
INSTRUMENT PANEL CENTER BEZEL -
LOWER
REMOVAL.............................57
INSTALLATION.........................57
INSTRUMENT PANEL CENTER BEZEL - UPPER
REMOVAL.............................58
INSTALLATION.........................58INSTRUMENT PANEL CENTER FLOOR
TUNNEL BRACKET
REMOVAL.............................58
INSTALLATION.........................59
INSTRUMENT PANEL COURTESY LAMP
BRACKET
REMOVAL.............................59
INSTALLATION.........................60
INSTRUMENT PANEL INTERMEDIATE
BRACKET
REMOVAL.............................60
INSTALLATION.........................61
INSTRUMENT PANEL LOWER RIGHT CENTER
BEZEL
REMOVAL.............................61
INSTALLATION.........................61
INSTRUMENT PANEL PLENUM BRACKET
REMOVAL.............................62
INSTALLATION.........................63
INSTRUMENT PANEL STEERING COLUMN
BRACKET
REMOVAL.............................63
INSTALLATION.........................63
INSTRUMENT PANEL STEERING COLUMN
SUPPORT BRACKET
REMOVAL.............................64
INSTALLATION.........................64
INSTRUMENT PANEL TRIM BEZEL - DRIVER
REMOVAL.............................65
INSTALLATION.........................65
INSTRUMENT PANEL TRIM BEZEL -
PASSENGER
REMOVAL.............................66
INSTALLATION.........................66
POWER OUTLET DOOR
REMOVAL.............................67
INSTALLATION.........................67
STEERING COLUMN OPENING COVER
REMOVAL.............................68
INSTALLATION.........................68
23 - 36 INSTRUMENT PANEL SYSTEMWJ