1995 JEEP YJ ABS

OIL PRESSURE GAUGE
The case grounded oil pressure sensor is a variable
resistor that connects to circuit G6. Circuit G6 con-
nects to the oil pressure gauge.
Circuit F87 connects to the instrument cluster con-
nector and supplies battery voltage to oil pressure
gauge. The gauge uses two coils. Current passing
through the coils creates a magnetic field. Position of
the gauge needle is controlled by the amount of cur-
rent passing through the coils to ground at the sen-
sor.
OIL PRESSURE WARNING LAMP
The case grounded oil pressure switch connects to
circuit G6. Circuit G6 connects to the oil pressure
warning lamp. Circuit F87 connects to the instru-
ment cluster connector and supplies battery voltage
to oil pressure lamp.
When the oil pressure switch close, battery voltage
flows through the warning lamp to ground through
the switch, illuminating the lamp.
TACHOMETER
The tachometer module in the instrument cluster
operates the tachometer. The Powertrain Control
Module (PCM) supplies the signal for the tachometer
on circuit G21. Circuit G21 connects to cavity 43 of
the PCM.
SPEEDOMETER
The speedometer and odometer receive a signal
from the vehicle speed sensor on circuit G7. Circuit
G7 also connects to the Powertrain Control Module
(PCM) at cavity 47.
ABS WARNING LAMP
Circuit F87 provides power for the ABS warning
lamp at the instrument cluster. Ground for the ABS
warning lamp is provided by either the ABS control
module or by the ABS power relay when the relay is
not energized. The ABS control module illuminates
the lamp by providing ground on circuit B205.
Circuit B205 splices to connect to circuit B235
through a diode. When the ABS power relay is not
energized, it connects circuit B235 to circuit Z12. The
ground path for the warning lamp is through the di-
ode to circuit B235, through the ABS power relay to
ground on circuit Z12.
The diode between circuit B205 and B235 prevents
voltage from flowing to the ABS control module when
the ABS power relay switches to supply power on cir-
cuit B235.
MALFUNCTION INDICATOR LAMP (MIL)
The PCM provides ground for the instrument clus-
ter malfunction indicator lamp on circuit G3. Circuit
G3 connects to cavity 32 of the PCM. Circuit F87provides voltage for the lamp. The MIL displays the
message CHECK ENGINE when illuminated.
For information regarding diagnostic trouble code
access using the MIL lamp, refer to Group 14, Fuel
Systems.
LOW WASHER FLUID WARNING LAMP
Circuit G29 connects the low washer fluid switch to
the warning lamp in the instrument cluster. Circuit
F12 supplies battery voltage to the switch.
When the low washer fluid switch closes, it con-
nects circuits G29 and F12. Battery voltage from cir-
cuit F12 powers the low washer fluid lamp. Circuit
Z1 at the instrument cluster provides ground to illu-
minate the warning lamp.
SEAT BELT INDICATOR WARNING LAMP
The seat belt indicator warning lamp is activated
by the chime/buzzer on circuit G11. Circuit G11 sup-
plies power to instrument cluster for the lamp. Cir-
cuit Z1 provides ground for the lamp at the cluster.
The chime/buzzer module powers circuit G11 after
it receives an input on circuit G10 indicating the seat
belt switch is open.
HIGH-BEAM INDICATOR LAMP
Circuit L3 supplies power for the high-beam indi-
cator lamp. The ground path for the lamp is through
circuit Z1. If the vehicle has Daytime Running
Lamps (DRL), the DRL module powers circuit L3
through circuit G465. On vehicles not equipped with
DRL, the headlamp switch powers circuit L3.
Circuit Z1 provides ground for the indicator lamp
at the cluster.
TURN SIGNAL INDICATOR LAMPS
Circuits L61 and L60 power for the turn signal in-
dicator lamps. Circuit L61 powers the left indicator
lamp. Circuit L60 powers the right indicator lamp.
Circuit Z1 provides ground for the lamps.
BRAKE WARNING LAMP
Circuit F87 supplies power to the park brake lamp.
Ground for the park brake lamp is supplied through
the case grounded park brake switch or brake warn-
ing switch on circuit G9. Circuit G9 Connects to cir-
cuit B203. Circuit B203 connects to the brake
warning lamp at the instrument cluster.
MANUAL TRANSMISSION UP-SHIFT LAMP
Circuit F87 supplies power for the manual trans-
mission up-shift lamp. The lamp illuminates when
the Powertrain Control Module (PCM) provides
ground for the lamp on circuit K54. Circuit K54 con-
nects to cavity 54 of the PCM.
8W - 40 - 2 8W-40 INSTRUMENT CLUSTERÐXJ VEHICLESJ

CHARGING SYSTEM INDICATOR LAMP
The Powertrain Control Module (PCM) illuminates
the charging system indicator lamp by providing
ground for the lamp on circuit G12. Circuit G12 con-
nects to cavity 36 of the PCM. Circuit F87 supplies
battery voltage to the lamp.
FOUR-WHEEL DRIVE (4WD) SWITCH
When the 4WD switch closes, circuit Z1 provides
ground for the 4WD indicator lamp in the instrument
cluster. Circuit F87 connects to the instrument clus-
ter and supplies battery voltage to the 4WD indicator
lamp. Circuit 107 connects the indicator lamp to the
4WD switch. Circuit 106 connects the lamp to the in-
strument cluster and circuit F87.
CLUSTER GROUND
Circuit Z1 from the instrument cluster left connec-
tor provides ground for the illumination lamps and
indicator lamps.
HELPFUL INFORMATION
²If the warning lamps don't operate, check fuse 14
in the fuse block.
²If the indicator lamps and illumination lamps
don't operate, check fuse 13 in the fuse block.
²Inspect the ground at the instrument panel lower
right reinforcement support.
DIAGRAM INDEX
Component Page
4WD Switch............................8W-40-9
4WD Indicator Lamp......................8W-40-9
ABS Control Module......................8W-40-9
Brake Warning Switch.....................8W-40-10
Chime/Buzzer Module......................8W-40-8
Daytime Running Lamps Module.............8W-40-5, 6
Engine Coolant Temperature Sending Unit.........8W-40-6
Engine Oil Pressure Sending Unit..............8W-40-6
Fuse 3 (PDC)...........................8W-40-8
Fuse 5 (PDC)...........................8W-40-4
Fuse 6 (PDC).........................8W-40-4, 8
Fuse 11 (PDC)..........................8W-40-8
Fuse 16 (PDC)..........................8W-40-8
Fuse 9 (Fuse Block).......................8W-40-8
Fuse 15 (Fuse Block)......................8W-40-4
Fuse 17 (Fuse Block)....................8W-40-4, 8
Fuse 19 (Fuse Block)......................8W-40-4
Headlamp Switch.......................8W-40-4, 5
Headlamp Delay Module....................8W-40-8
Headlamp Dimmer Switch...................8W-40-5
Ignition Switch......................8W-40-4, 8, 10
Instrument Cluster......................8W-40-4, 5
Low Washer Fluid Lamp Switch...............8W-40-8
Park Brake Switch.......................8W-40-10
Powertrain Control Module..................8W-40-6
Remote Keyless Entry Module................8W-40-8
Telltale Connector (Instrument Cluster).....8W-40-7 thru 10
J8W-40 INSTRUMENT CLUSTERÐXJ VEHICLES 8W - 40 - 3

TURN SIGNALS
COMBINATION FLASHER
In the ACCESSORY or RUN position, the ignition
switch connects circuit A1 from fuse 6 in the Power
Distribution Center (PDC) to circuit A48. Circuit A48
feeds circuit F83 through fuse 8 in the fuse block.
Circuit F83 powers the combination flasher for the
turn signals. Circuit L9 from fuse 4 in the PDC sup-
plies battery voltage to the combination flasher for
the hazard lamps. Circuit Z1 provides ground for the
combination flasher.
Circuit L5 from the flasher connects to the multi-
function switch to supply power to the turn signals.
The multi-function switch supplies voltage to the
turn signals and side marker lamps on circuits L60
and L61.
Circuit L12 from the flasher connects to the multi-
function switch to supply power to the hazard flasher
circuits. The multi-function switch connects to the
turn signal and side marker lamps on circuits L60
and L61.
TURN SIGNALS
When the operator selects the right turn signal, the
multi-function switch connects power from circuit L5
to circuit L60. Circuit L60 feeds the right front and
right rear turn signal lamps. Circuit L60 also splices
to power the right turn signal indicator lamp on the
instrument cluster.
When the operator selects the left turn signal, the
multi-function switch connects power from circuit L5
to circuit L61. Circuit L61 feeds the left front and
left rear turn signal lamp. Circuit L61 also splices to
power the left turn signal indicator lamp on the in-
strument cluster.
Circuit Z1 provides ground for the turn signal
lamps.
HELPFUL INFORMATION
²The turn signal lamps are the same lamps used
for the hazard flasher.
²Check fuse 6 in the PDC and fuse 8 in the fuse
block if the turn signals do not operate.
²Circuit F83 also connects to the heated rear win-
dow relay.
HAZARD FLASHERS
When the operator selects the hazard flashers, the
multi-function switch circuit L12 from the combina-
tion flasher to circuits L60 and L61.
Circuit L60 feeds the right front and right rear
turn signal lamp. Circuit L60 also splices to power
the right turn signal indicator lamp on the instru-
ment cluster.
Circuit L61 feeds the left front and left rear turn
signal lamp. Circuit L61 also splices to power the left
turn signal indicator lamp on the instrument cluster.
Circuit Z1 provides ground for the hazard flasher
lamps.
HELPFUL INFORMATION
²The hazard flasher lamps are the same lamps
used for the turn signals.
²Circuit L9 also connects to the stop lamp switch.
DIAGRAM INDEX
Component Page
ABS Control Module......................8W-52-3
Combination Flasher.......................8W-52-2
Fuse 4 (PDC)...........................8W-52-2
Fuse 6 (PDC)...........................8W-52-2
Fuse 8 (Fuse Block).......................8W-52-2
Ignition Switch..........................8W-52-2
Instrument Cluster........................8W-52-2
Powertrain Control Module..................8W-52-3
Stop Lamp Switch........................8W-52-3
Transmission Control Module.................8W-52-3
Turn Signal Switch.......................8W-52-2
J8W-52 TURN SIGNALSÐXJ VEHICLES 8W - 52 - 1

CONNECTOR LOCATIONS
GENERAL INFORMATION
This section provides illustrations identifying com-
ponent and connector locations in the vehicle. A con-nector index is provided. Use the wiring diagrams in
each section for connector number identification. Re-
fer to the index for the proper figure number.
CONNECTOR LOCATIONS
Connector # Color Location Fig.
C101......BK ...Front of Left Fender Side Shield . . .1, 2
C102......BK ...Bottom Right of Radiator Closure
Panel....................8
C103......BK ...Near Left Side of Radiator......2,8
C104......BK ...Left Fender Side Shield
C105......BK ...Bottom of Left Fender Side Shield . . .2
C106......BK ...Left Fender Side Shield, Near PCM .1, 2
C107......BK ...OnABSPump Motor...........2
C108......BK ...Right Rear Corner of Engine
Compartment.............2,3
C109......BK ...Center of Dash Panel.........1,4
C110......BK ...Center of I.P., Below ABS Control
Module...............13, 14
C111......BK ...Left of Steering Column.........14
C112......BK ...AtABSControl Module.........13
C113......BK ...InHarness, Near ABS Control
Module.................13
C114......BK ...Center of I.P., Below ABS Control
Module.................14
C115......BK ...Near ABS Control Module.......14
C116......BK ...Below ABS Control Module.......14
C117......BK ...Rear of Intake Manifold........6,7
C118......BK ...OnThrottle Body............6,7
C119......BK ...Bottom Left Front of Cylinder
Block..................6,7
C120......BK ...OnThrottle Body............6,7
C121......GY ...Rear of Intake Manifold........6,7
C122......BK ...AtThermostat Housing........6,7
C123......BK ...Injector No. 1..............6,7
C124......BK ...Injector No. 2..............6,7
C125......BK ...Injector No. 3..............6,7
C126......BK ...Injector No. 4..............6,7
C127......BK ...Injector No. 5................7
C128......BK ...Injector No. 6................7
C129......GN ...Center of Dash Panel.........1,4
C130......BK ...Below Brake Master Cylinder.....1,2
C131......BK ...Distributor................6,7
C132......GN ...Lower Right Side of I.P.
C133......BK ...Right of Blower Motor..........4
C134......GY ...Right of Blower Motor..........4
C135......GY ...Right of Blower Motor..........4
C136......BR ...OnWasher Fluid Reservoir......1,4
C137......BK ...Under Side of Hood..........1,4
C138......BK ...Left of Blower Motor...........4
C139......BK ...Bottom of Washer Fluid Reservoir .3, 4
C140......BK ...Bottom of Washer Fluid Reservoir .3, 4
C141......BK ...InFront of Washer Fluid Reservoir .1, 4
C142......BK ...Between PDC and Blower Motor . .1, 4Connector # Color Location Fig.
C143......BK ...Bottom Front of Right Fender
Side Shield..............1,3
C144......BK ...Front of Right Fender Side Shield . .1, 3
C145......BK ...Front of Right Fender Side Shield . .1, 3
C146......BK ...Right Side of Grille Opening.....1,3
C147......BK ...Below Distributor..............7
C148......BK ...Right Side of Engine..........6,7
C149......BK ...Rear of Generator...........5,6
C150......BK ...Right Rear of Engine...........7
C151......BK ...Right Fender Side Shield.......1,4
C152......GY ...Behind Power Steering Pump......6
C153......BK ...Right Side of Transmission.......21
C154......BK ...Left Side of Radiator Closure Panel . .8
C155......BK ...Left Rear of Radiator Closure Panel . .8
C156......BK ...Behind Lens.................8
C157......BK ...Behind Left Headlamp...........8
C158......BK ...Behind Lens.................8
C159......BK ...Center of Grille Opening.........8
C160......BK ...Behind Lens.................8
C161......BK ...Behind Right Headlamp..........8
C162......BK ...Behind Lens.................8
C163......BK ...Center of Grille Opening.........8
C164......BK ...Right Center of Engine Compartment
C201......BK ...Below Left Side of I.P.........9,14
C202......LG ...Behind Left Kick Panel.........14
C203......BK ...Behind Left Kick Panel.........14
C204......GY ...Behind Left Kick Panel.........14
C205......BK ...Bottom Right of I.P............12
C206......BK ...Bottom Right of I.P............12
C207......BK ...Behind Headlamp Switch........10
C208......BK ...Bottom Right of I.P............12
C209......BK ...OnI.P.Right of Steering Column . . .10
C210......BK ...OnI.P.Right of Steering Column . . .10
C211......BK ...Rear of Radio...............11
C212......BR ...Center of I.P.................10
C213......BK ...Center of I.P.................10
C214......GY ...Right Side of I.P..............13
C215......BK ...Right Side of I.P..............13
C216......GY ...Glove Box.................10
C217......BK ...Bottom Right of I.P............11
C218......RD ...Right Side of I.P...........13, 17
C219......BK ...Bottom Right of I.P............11
C220......BK ...Right Side of I.P..............13
C221......BK ...Right Corner of I.P............13
C222......LG ...Right Corner of I.P............13
C223......BK ...Right Front of Steering Column....14
C224......BK ...Right Front of Steering Column....14
C225......NAT...Below Steering Column.........14
J8W-90 CONNECTOR LOCATIONSÐXJ VEHICLES 8W - 90 - 1

Fig. 13 Stop Lamp Switch, Blower Motor and ABS Control Module Wiring Connectors
J8W-90 CONNECTOR LOCATIONSÐXJ VEHICLES 8W - 90 - 15

Fig. 14 Steering Column, Fuse Panel and ABS Control Module Wiring Connectors
8W - 90 - 16 8W-90 CONNECTOR LOCATIONSÐXJ VEHICLESJ

Fig. 19 ABS Sensors Wiring Connections
Fig. 20 Rear Compartment Wiring Connectors
J8W-90 CONNECTOR LOCATIONSÐXJ VEHICLES 8W - 90 - 21

SPLICE LOCATIONS
GENERAL INFORMATION
This section provides illustrations identifying the
general location of the splices in this vehicle. A splice
index is provided. Use the wiring diagrams in each
section for splice number identification. Refer to the
index for the proper splice number.
SPLICE LOCATIONS
Splice
NumberLocations Fig.
S101 Near Generator T/O..................4
S102 Near Bulkhead T/O...................2
S103 Near Bulkhead T/O...................2
S104 Near Bulkhead T/O...................2
S105 Near Bulkhead T/O...................2
S106 Near Bulkhead T/O...................1
S107 Near Wiper Motor T/O................1
S108 Near Wiper Motor T/O................1
S109 Near Wiper Motor T/O................1
S110 Center of Dash Panel Near Grommet.......1
S111 Near T/O for ABS Diode...............7
S112 Near T/O for Map Sensor..............1
S113 Near T/O for Injector #5 and #6..........4
S114 Near T/O for Injector #5 and #6..........4
S115 Near T/O for Injector #5 and #6..........4
S116 Near T/O for Injector #5 and #6..........4
S117 Near T/O for Map Sensor..............1
S118 Near T/O for Map Sensor..............1
S119 Near Distributor T/O..................1
S120 Between Distributor T/O and Underhood
Lamp T/O.......................1
S121 Between Distributor T/O and Underhood
Lamp T/O.......................1
S122 Between Distributor T/O and Underhood
Lamp T/O.......................1
S123 RT Side of Cowl Panel................1
S124 RT Side of Cowl Panel................1
S125 Near T/O for PDC...................1
S126 Near T/O for Oil Pressure Switch..........5
S127 Near Generator T/O..................5
S128 LT Side of Grille Panel................3
S129 LT Side of Grille Panel................3
S130 Center of Grille Panel.................3
S201 Near Body Harness Connector T/O.........6
S202 Near Body Harness Connector T/O.........6
S203 Near Body Harness Connector T/O.........6
S204 Near Relay Center...................6
S205 Near T/O for Headlamp Switch...........6Splice
NumberLocations Fig.
S206 Near T/O for Telltale..................6
S207 Near T/O for Cluster..................6
S208 Near T/O for Cluster..................6
S209 Right Side of Cluster.................6
S210 Right Side of Cluster.................6
S211 Near Instrument Panel Ground T/O........6
S212 Near Wiper Switch T/O................6
S213 Near Antenna T/O...................7
S214 Near Blower Resistor T/O..............7
S215 Right Side of Instrument Panel...........7
S301 In Left Rear Door T/O.................8
S302 Near Left C-Pillar....................8
S303 Near Left C-Pillar....................8
S304 Near Left C-Pillar....................8
S305 Near Left C-Pillar....................8
S306 Near Left C-Pillar....................8
S307 Left Rear Wheel Well................10
S308 Left Rear Wheel Well................10
S309 Near Left Rear Door T/O...............8
S310 Near Left Rear Door T/O...............8
S311 Left Side of Floor Tunnel...............9
S312 Top of Floor Tunnel..................9
S313 In Power Mirror Switch T/O.............9
S314 Right A- Pillar.....................11
S315 Near RT Vanity Mirror T/O.............11
S316 Near RT Vanity Mirror T/O.............11
S317 In Trailer Tow Harness Near Grommet......14
S318 In Trailer Tow Harness Near Grommet......14
S319 In Liftgate.......................13
S320 Right A-Pillar.....................11
S321 In Left Front Door..................12
S401 In Left Rear Tail Lamp..........Not Shown
S402 In Right Rear Tail Lamp.........Not Shown
S403 In Left Rear Tail Lamp..........Not Shown
S404 In Right Rear Tail Lamp.........Not Shown
J8W-95 SPLICE LOCATIONSÐXJ VEHICLES 8W - 95 - 1