JEEP CHEROKEE 1994 Service Repair Manual

(3) Connect a jumper between terminal A and B on
the body half of the fuel gauge sender connector. The
gauge should move to F. If gauge is OK, replace
sender. If not, go to step 4.
(4) Measure resistance of sender. Meter should
read 105 to 5 ohms. If OK, go to step 5. If not, re-
place sender.
(5) Check for an open between sender connector
and gauge. If OK, replace gauge. If not, repair open
to gauge.
LOW FUEL WARNING INOPERATIVE
(1) Turn ignition switch to ON.
(2) Disconnect terminal B1 of the instrument clus-
ter connector. Wait at least 10 seconds. Lamp (LED)
should light. If OK, replace sender. If not, replace
low fuel warning module.
UPSHIFT INDICATOR INOPERATIVE
(1) Turn ignition switch to ON.
(2) Ground pin 7 of connector B. Lamp should
light. If not, replace bulb. If OK, continue with
step 3.
(3) Turn ignition switch to OFF. Check for conti-
nuity between connector B pin 2 and pin 54 of the
Powertrain Control Module. If OK, replace PCM. If
not, repair open.
BRAKE INDICATOR INOPERATIVE
(1) Turn ignition switch to ON. Apply parking
brake, brake warning switch connector unplugged.
(2) Jumper brake warning switch connector termi-
nal B to ground. Lamp should light. If bulb is OK,
repair open to indicator.
(3) Turn ignition switch to OFF. Measure resis-
tance between brake warning switch connector ter-
minal A and ground. Meter should read zero ohms. If
OK, check switch and/or brake system. If not, repair
open to park brake switch ground.
4WD INDICATOR INOPERATIVE
(1) Apply parking brake, start engine, vehicle in
4WD Lock or 4WD.
(2) Unplug switch and touch harness side of wire
to ground. Lamp should light. If OK, check switch
operation, replace if bad. If bulb is OK, repair open
to indicator.
LOW WASHER INDICATOR INOPERATIVE
(1) Turn ignition switch to ON.
(2) Jumper 12 volts to fluid level switch connector
terminal B. Lamp should light. If not, go to step 3.
(3) Measure resistance between terminal B and
ground. Meter should read zero ohms. If not, repair
open to bulb. If OK, go to step 4.
(4) Measure voltage at fluid level switch connector
terminal A. Meter should read battery voltage. If
OK, replace switch. If not, repair open to fuse.
MALFUNCTION INDICATOR LAMP (CHECK ENGINE)
(1) Turn ignition switch to ON.
(2) Jumper Powertrain Control Module terminal 2
to ground. Lamp should light. If bulb is OK, check
for open to instrument cluster connector terminal 2.
ANTI-LOCK INDICATOR
(1) Turn ignition switch to ON.
(2) Jumper instrument cluster connector terminal
6 to ground. Lamp should light. If bulb is OK, check
wiring for an open to module. Refer to Group 5 -
Brakes.
SEAT BELT INDICATOR
Jumper instrument cluster connector terminal 15
to 12 volts. Lamp should light. If not, replace bulb. If
OK, check wiring for an open to buzzer module. Re-
fer to Group 8U - Chime/Buzzer Warning Systems.
RADIO/CLOCK ILLUMINATION
With the ignition switch in ACCESSORY or ON,
power comes from the radio fuse. It then goes
through the normally closed contacts of the radio il-
lumination relay to the radio at connector terminal
11.
Pulling the headlamp switch to ON energizes the
radio illumination relay. This closes the normally
open contacts of the relay, and the brightness for the
radio display is controlled by the headlamp switch
rheostat. The back-lighting for the radio is also con-
trolled by the headlamp rheostat through radio con-
nector terminal 10.
Refer to Group 8F - Audio Systems, for radio illu-
mination relay diagnosis.
INSTRUMENT PANEL LAMPS
Voltage is supplied at all times from the 40 amp
Maxi fuse (located in the Power Distribution Center)
through the park lamps fuse to the headlamp switch.
The circuit continues through the instrument lamps
fuse to the individual instrument panel lamps to
ground. Lamp brightness is controlled by turning the
headlamp switch knob.
DIAGNOSIS
(1) Turn parking lamps ON.
(2) Check park lamps fuse. Replace as required.
(3) Check instrument lamps fuse. Replace as re-
quired.
(4) Measure voltage at battery side of instrument
lamps fuse with rheostat turned counterclockwise to
clockwise (LO to HI). Meter should read zero volts to
battery voltage. If not, replace headlamp switch.
(5) Measure resistance at ground side of instru-
ment lamps fuse with parking lamps OFF. Meter
should read almost zero ohms (except bulb filament).
If not, repair open to ground. If zero ohms, 12 volt
supply wire from fuse is shorted to ground, repair short.
8E - 4 XJ INSTRUMENT PANEL AND GAUGESJ

INSTRUMENT CLUSTER SERVICE PROCEDURES
INDEX
page page
Gauge ReplacementÐInstrument Cluster Removed.. 5
Gear Selector Indicator ReplacementÐInstrument
Cluster Removed........................ 6
Instrument Cluster Replacement.............. 5
Instrument Panel Replacement (Fig. 9)......... 8
Printed Circuit ReplacementÐInstrumentCluster Removed........................ 6
Speedometer ReplacementÐInstrument
Cluster Removed........................ 5
Tachometer ReplacementÐInstrument
Cluster Removed........................ 5
INSTRUMENT CLUSTER REPLACEMENT
(1) Disconnect negative cable from battery.
(2) Remove 4 instrument panel bezel attaching
screws and remove instrument panel bezel. Bezel is
snap fit at locations shown (Fig. 2).
(3) Remove cigar lighter housing attaching screws
(Fig. 3).
(4) Remove switch housing attaching screws (if
equipped).
(5) Remove instrument panel cluster attaching
screws.
(6) Pull out cluster assembly far enough to discon-
nect 2 multiple plugs and remove instrument cluster.
To install cluster, reverse the removal procedures.
GAUGE REPLACEMENTÐINSTRUMENT CLUSTER
REMOVED
(1) Remove cluster lens and gauge bezel (Fig. 4). If
equipped with trip odometer, gently pull knob off trip
odometer push pin.
(2) Remove gauge attaching screws from rear of
mounting bezel. Remove gauge from front.
(3) Install gauge. Install attaching screws.
(4) Install cluster bezel and lens.
(5) Install knob on trip odometer push pin.
SPEEDOMETER REPLACEMENTÐINSTRUMENT
CLUSTER REMOVED
(1) Remove cluster lens and gauge bezel. If
equipped with trip odometer, gently pull knob off trip
odometer push pin.
(2) Remove 6 mounting screws from cluster hous-
ing.
(3) Remove 3 screws from rear of cluster housing
(Fig. 5).
(4) Remove speedometer assembly including circuit
board.
(5) Install speedometer with 3 screws.
(6) Install gauge bezel and lens.
(7) Install knob on trip odometer push pin.
TACHOMETER REPLACEMENTÐINSTRUMENT
CLUSTER REMOVED
(1) Remove cluster lens and gauge bezel. If
equipped with trip odometer, gently pull knob off trip
odometer push pin.
Fig. 2 Instrument Bezel Removal/InstallationÐXJFig. 3 Instrument Cluster Removal/InstallationÐXJ
JXJ INSTRUMENT PANEL AND GAUGES 8E - 5

(2) Remove 3 attaching screws from rear of cluster
housing.
(3) Remove tachometer assembly including circuit
board.
(4) Install tachometer. Install attaching screws.
(5) Install gauge bezel and lens.
(6) Install knob on trip odometer push pin.
PRINTED CIRCUIT REPLACEMENTÐINSTRUMENT
CLUSTER REMOVED
DISASSEMBLY
(1) Remove all attaching screws for gauges, ta-
chometer, and speedometer that are contacting
printed circuit (Fig. 5).
(2) Remove screw holding the cluster connector re-
taining strap to bezel. Remove strap and pivot con-
nector down (Figs. 6 and 7).
(3) Remove lamp sockets from circuit board.
(4) Remove printed circuit including connector.There is a separate printed circuit for the
warning lights that is removed by removing the
lamp sockets.
ASSEMBLY
(1) Position printed circuit, including connector, on
the back of the instrument panel cluster.
(2) Remove gauge bezel and lens.
(3) Hold components in place and install screws.
(4) Install lamp sockets.
(5) Pivot connector up and install retaining strap.
(6) Install gauge bezel and cluster lens.
GEAR SELECTOR INDICATOR
REPLACEMENTÐINSTRUMENT CLUSTER
REMOVED
(1) Remove screws from rear of mounting bezel
holding fuel gauge in place.
(2) Remove 2 screws holding gear selector indica-
tor (Fig. 8).
Fig. 4 Instrument Cluster
8E - 6 XJ INSTRUMENT PANEL AND GAUGESJ

(3) Pull cable and clip through hole in the mount-
ing bezel and remove indicator.
(4) Install indicator and cluster.
(5) To adjust indicator, place transmission in PARK.(6) Align pointer on indicator with PARK position.
(7) Install clip to steering column shroud.
(8) Move transmission shift lever to check proper
alignment.
Fig. 5 Printed Circuit Removal/Installation
Fig. 6 Cluster Connector Retaining StrapFig. 7 Printed Circuit And Cluster Connector
JXJ INSTRUMENT PANEL AND GAUGES 8E - 7

INSTRUMENT PANEL REPLACEMENT (Fig. 9)
(1) Disconnect negative cable from battery.
(2) Remove:
²Parking brake release handle
²lower heat/AC duct below steering column
²ash receiver²lower instrument panel (Fig. 10)
²cluster bezel
²cluster assembly
²clock (if equipped)
²radio and heater control panel
²instrument panel switches
²headlamp switch
Fig. 8 Gear Selector Indicator
Fig. 9 Instrument Panel Exploded View
Fig. 10 Lower Instrument Panel Removal/Installation
8E - 8 XJ INSTRUMENT PANEL AND GAUGESJ

²antenna connector
²blower motor resistors
²ground lead
²disconnect glove box light
²defroster cowl panel
Remove driver's side heat/AC outlet to gain ac-
cess to left hand defroster cowl panel retaining
clip to aid in removal (Fig. 11).
²instrument panel attaching bolts
²steering column attaching bolts
²instrument panel assembly
The instrument panel wiring harness is at-
tached to the back of the instrument panel as-
sembly and must be installed correctly for
installation.
(3) To install instrument panel, position instru-
ment panel assembly on side mounting bolts (Fig.
12).
(4) Route wiring harnesses and secure instrument
panel assembly mounting points.
(5) Connect tube to lap cooler.
(6) Reverse the removal procedures to finish in-
strument panel installation.
Fig. 11 Driver's Side Defroster Cowl Retaining Clip
Fig. 12 Instrument Panel Installation
JXJ INSTRUMENT PANEL AND GAUGES 8E - 9

INSTRUMENT CLUSTERS
8E - 10 XJ INSTRUMENT PANEL AND GAUGESJ

LOW LINE CLUSTER
JXJ INSTRUMENT PANEL AND GAUGES 8E - 11

HIGH LINE CLUSTER
8E - 12 XJ INSTRUMENT PANEL AND GAUGESJ

SPECIFICATIONS
INSTRUMENT CLUSTER GAUGES
JXJ INSTRUMENT PANEL AND GAUGES 8E - 13