2002 JEEP LIBERTY Speed control system

²Intermittent Wipe Mode- The control knob on
the right (wiper) control stalk of the multi-function
switch has five minor detent intermittent wipe posi-
tions. When selected, these switch positions will
cause the front wiper system to operate with one of
five delay intervals between complete wipe cycles.
²Mist Wipe Mode- The right (wiper) control
stalk of the multi-function switch has a momentary
Mist position. When selected, this switch position
will operate the front wipers in a low speed continu-
ous cycle for as long as the switch is held closed,
then will complete the current wipe cycle and park
the front wiper blades near the base of the wind-
shield when the switch is released.
²Washer Mode- When the momentary front
wash position of the right (wiper) control stalk of the
multi-function switch is selected with the front wiper
system operating in a continuous wipe mode, washer
fluid will be dispensed onto the windshield glass
through the washer nozzles for as long as the washer
switch is held closed. When the front washer switch
is actuated with the front wiper system operating in
an intermittent wipe mode, washer fluid is still dis-
pensed until the switch is released; however, the
front wipers will operate in a low speed continuous
cycle from the time the washer switch is closed until
several wipe cycles after the switch is released,
before returning to the selected intermittent wipe
mode.
²Wipe-After-Wash Mode- When the momentary
front wash position of the right (wiper) control stalk
of the multi-function switch is selected with the front
wiper system turned Off, the internal circuitry of the
BCM provides a wipe-after-wash feature. When
selected, this feature will operate the washer pump/
motor and the front wipers for as long as the front
washer switch is held closed, then provide several
additional wipe cycles after the switch is released
before parking the front wiper blades near the base
of the windshield.
OPERATION
The front wiper and washer system is designed to
provide the vehicle operator with a convenient, safe,
and reliable means of maintaining visibility through
the windshield glass. The various components of this
system are designed to convert electrical energy pro-
duced by the vehicle electrical system into the
mechanical action of the wiper blades to wipe the
outside surface of the glass, as well as into the
hydraulic action of the washer system to apply
washer fluid stored in an on-board reservoir to the
area of the glass to be wiped. When combined, these
components provide the means to effectively main-
tain clear visibility for the vehicle operator by remov-
ing excess accumulations of rain, snow, bugs, mud, orother minor debris from the outside windshield glass
surface that might be encountered while driving the
vehicle under numerous types of inclement operating
conditions.
The vehicle operator initiates all front wiper and
washer system functions with the right (wiper) con-
trol stalk of the multi-function switch that extends
from the right side of the steering column, just below
the steering wheel. Rotating the control knob on the
end of the control stalk, selects the Off, Delay, Low,
or High front wiper system operating modes. In the
Delay mode, the control knob also allows the vehicle
operator to select from one of five intermittent wipe
Delay intervals. Pulling the right control stalk down-
wards actuates the momentary front wiper system
Mist mode switch, while pulling the right control
stalk towards the steering wheel actuates the
momentary front washer system switch. The multi-
function switch provides hard wired resistor multi-
plexed inputs to the Body Control Module (BCM) for
all of the front wiper system functions, as well as a
separate hard wired sense input to the BCM for the
front washer system function.
The front wiper and washer system will only oper-
ate when the ignition switch is in the Accessory or
On positions. Battery current is directed from a B(+)
fuse in the Power Distribution Center (PDC) to the
wiper and washer system circuit breaker in the Junc-
tion Block (JB) through a fused ignition switch out-
put (run-acc) circuit. The automatic resetting circuit
breaker then provides battery current through a
fused ignition switch output (run-acc) circuit to the
wiper high/low relay, the wiper on/off relay, and the
park switch within the front wiper motor. A separate
fuse in the JB provides battery current through
another fused ignition switch output (run-acc) circuit
to the multi-function switch. The multi-function
switch circuitry uses this battery feed and a ground
circuit input to directly control the operation and
direction of the reversible electric washer pump/mo-
tor unit. The BCM uses low side drivers to control
front wiper system operation by energizing or de-en-
ergizing the wiper high/low and wiper on/off relays.
The hard wired circuits and components of the
front wiper and washer system may be diagnosed
and tested using conventional diagnostic tools and
procedures. However, conventional diagnostic meth-
ods may not prove conclusive in the diagnosis of the
Body Control Module (BCM), or the inputs to or out-
puts from the BCM that control the front wiper and
washer system operating modes. The most reliable,
efficient, and accurate means to diagnose the BCM,
or the BCM inputs and outputs related to the various
front wiper and washer system operating modes
requires the use of a DRBIIItscan tool. Refer to the
appropriate diagnostic information.
8R - 4 FRONT WIPERS/WASHERSKJ
FRONT WIPERS/WASHERS (Continued)

of the washer pump/motor unit is connected to the
front nipple.
(10) Engage the ªWº clip that secures the front
bumper fascia to the front bumper support. This clip
is located behind the bumper support and below the
right front lamp unit.
(11) Reinstall the splash shield into the right front
fender wheel house. (Refer to 23 - BODY/EXTERIOR/
WHEELHOUSE SPLASH SHIELD - INSTALLA-
TION).
(12) Lower the vehicle.
(13) Install and tighten the screw that secures the
washer reservoir filler neck support to upper radiator
crossmember (Fig. 23). Tighten the screw to 7 N´m
(65 in. lbs.).
(14) Reinstall the air cleaner housing onto the top
of the right front fender wheel house. (Refer to 9 -
ENGINE/AIR INTAKE SYSTEM/AIR CLEANER
ELEMENT - INSTALLATION).
(15) Refill the washer reservoir with the washer
fluid drained from the reservoir during the removal
procedure.
(16) Reconnect the battery negative cable.
WIPER HIGH/LOW RELAY
DESCRIPTION
The wiper high/low relay is located in the Power
Distribution Center (PDC) in the engine compart-
ment near the battery. The wiper high/low relay is a
conventional International Standards Organization
(ISO) micro relay (Fig. 25). Relays conforming to theISO specifications have common physical dimensions,
current capacities, terminal patterns, and terminal
functions. The relay is contained within a small, rect-
angular, molded plastic housing and is connected to
all of the required inputs and outputs by five integral
male spade-type terminals that extend from the bot-
tom of the relay base.
The wiper high/low relay cannot be adjusted or
repaired and, if faulty or damaged, the unit must be
replaced.
OPERATION
The wiper high/low relay is an electromechanical
switch that uses a low current input from the Body
Control Module (BCM) to control a high current out-
put to the front wiper motor. The movable common
feed contact point is held against the fixed normally
closed contact point by spring pressure. When the
relay coil is energized, an electromagnetic field is
produced by the coil windings. This electromagnetic
field draws the movable relay contact point away
from the fixed normally closed contact point, and
holds it against the fixed normally open contact
point. When the relay coil is de-energized, spring
pressure returns the movable contact point back
against the fixed normally closed contact point. A
resistor is connected in parallel with the relay coil in
the relay, and helps to dissipate voltage spikes and
electromagnetic interference that can be generated as
the electromagnetic field of the relay coil collapses.
The wiper high/low relay terminals are connected
to the vehicle electrical system through a connector
receptacle in the Power Distribution Center (PDC).
The inputs and outputs of the wiper high/low relay
include:
²Common Feed Terminal- The common feed
terminal (30) is connected to the output of the wiper
on/off relay at all times through the wiper on/off
relay output circuit.
²Coil Ground Terminal- The coil ground termi-
nal (85) is connected to a control output of the Body
Control Module (BCM) through a front wiper high/
low relay control circuit. The BCM controls front
wiper motor operation by controlling a ground path
through this circuit.
²Coil Battery Terminal- The coil battery ter-
minal (86) receives battery current at all times from
a circuit breaker in the Junction Block (JB) through
a fused ignition switch output (run-acc) circuit.
²Normally Open Terminal- The normally open
terminal (87) is connected to the high speed brush of
the front wiper motor through a front wiper high/low
relay high speed output circuit, and is connected to
the high speed brush whenever the relay is ener-
gized.
Fig. 25 ISO Micro Relay
30 - COMMON FEED
85 - COIL GROUND
86 - COIL BATTERY
87 - NORMALLY OPEN
87A - NORMALLY CLOSED
KJFRONT WIPERS/WASHERS 8R - 23
WASHER RESERVOIR (Continued)

²Rear Wiper Module- The rear wiper motor
output shaft is the only visible component of the rear
wiper module. The remainder of the module is con-
cealed within the tailgate below the rear flip-up glass
opening. The rear wiper module includes the module
bracket, the rear wiper motor, and the rear wiper
electronic control circuitry.
²Washer Pump/Motor- The reversible electric
washer pump/motor unit is located in a dedicated
hole on the lower outboard side of the washer reser-
voir, behind the right front wheel house splash
shield. This single reversible washer pump/motor
provides washer fluid to either the front or rear
washer system plumbing, depending upon the direc-
tion of the pump motor rotation. (Refer to 8 - ELEC-
TRICAL/FRONT WIPERS/WASHERS/WASHER
PUMP MOTOR - DESCRIPTION).
²Washer Reservoir- The washer reservoir is
concealed behind the right front wheel house splash
shield ahead of the right front wheel. The washer
reservoir filler neck is the only visible portion of the
reservoir, and it is accessed from the right front cor-
ner of the engine compartment. This single washer
reservoir is shared by both the front and rear washer
systems. (Refer to 8 - ELECTRICAL/FRONT WIP-
ERS/WASHERS/WASHER RESERVOIR - DESCRIP-
TION).
Hard wired circuitry connects the rear wiper and
washer system components to the electrical system of
the vehicle. These hard wired circuits are integral to
several wire harnesses, which are routed throughout
the vehicle and retained by many different methods.
These circuits may be connected to each other, to the
vehicle electrical system and to the rear wiper and
washer system components through the use of a com-
bination of soldered splices, splice block connectors,
and many different types of wire harness terminal
connectors and insulators. Refer to the appropriate
wiring information. The wiring information includes
wiring diagrams, proper wire and connector repair
procedures, further details on wire harness routing
and retention, as well as pin-out and location views
for the various wire harness connectors, splices and
grounds.
OPERATING MODES The components of the rear
wiper and washer system are designed to work in
concert to provide the following operating modes:
²Continuous Wipe Mode- The control ring on
the right (wiper) control stalk of the multi-function
switch has an On position. When selected, this
switch position will cause the rear wiper motor to
operate in a continuous manner at a fixed wipe cycle
speed.
²Intermittent Wipe Mode- The control ring on
the right (wiper) control stalk of the multi-function
switch has a Delay position. When selected, thisswitch position will cause the rear wiper motor to
operate in an intermittent manner at a fixed interval
wipe cycle speed.
²Washer Mode- The control ring on the right
(wiper) control stalk of the multi-function switch has
two momentary Wash positions, one at the end of
each direction of control ring rotation. When the con-
trol ring is rotated to the downward (counterclock-
wise) Wash position, the rear washer system will
dispense washer fluid onto the flip-up glass and the
rear wiper motor will operate in a continuous mode
for as long as the switch is held closed, then provide
several additional wipe cycles after the washer
switch is released (wipe-after-wash mode). When the
control ring is rotated to the upward (clockwise)
Wash position, the rear washer system will dispense
washer fluid onto the flip-up glass and the rear wiper
motor will operate in a continuous mode for as long
as the switch is held closed, then return to fixed wipe
mode operation after the washer switch is released.
²Wipe-After-Wash Mode- The control ring on
the right (wiper) control stalk of the multi-function
switch has two momentary Wash positions, one at
the end of each direction of control ring rotation.
When the control ring is rotated to the downward
(counterclockwise) Wash position, the rear washer
system will dispense washer fluid onto the flip-up
glass and the rear wiper motor will operate in a con-
tinuous mode for as long as the switch is held closed,
then provide several additional wipe cycles after the
washer switch is released.
OPERATION
The rear wiper and washer system is designed to
provide the vehicle operator with a convenient, safe,
and reliable means of maintaining visibility through
the rear flip-up glass. The various components of this
system are designed to convert electrical energy pro-
duced by the vehicle electrical system into the
mechanical action of the wiper blade to wipe the out-
side surface of the glass, as well as into the hydraulic
action of the washer system to apply washer fluid
stored in an on-board reservoir to the area of the
glass to be wiped. When combined, these components
provide the means to effectively maintain clear visi-
bility for the vehicle operator by removing excess
accumulations of rain, snow, bugs, mud, or other
minor debris from the swing gate flip up glass sur-
face that might be encountered while driving the
vehicle under numerous types of inclement operating
conditions.
The vehicle operator initiates all rear wiper and
washer system functions with the right (wiper) con-
trol stalk of the multi-function switch that extends
from the right side of the steering column, just below
the steering wheel. Rotating the control ring on the
KJREAR WIPERS/WASHERS 8R - 29
REAR WIPERS/WASHERS (Continued)

control stalk to a detent position selects the Off,
Delay, or On rear wiper system operating modes.
Rotating the control ring on the control stalk to
either of two Wash positions actuates the momentary
rear washer system switch. The multi-function
switch provides hard wired outputs to the rear wiper
module and the washer pump/motor unit for all rear
wiper and washer system functions.
The rear wiper and washer system will only oper-
ate when the ignition switch is in the Accessory or
On positions, and the rear flip-up glass and tailgate
ajar switches are closed. Battery current is directed
from a fuse in the Junction Block (JB) to the multi-
function switch through a fused ignition switch out-
put (run-acc) circuit. The internal circuitry of the
right (wiper) control stalk of the multi-function
switch then provides battery current signals through
a rear wiper on driver circuit and a rear wiper inter-
mittent driver circuit to the rear wiper module and
to the Body Control Module (BCM). The BCM uses
these rear wiper system inputs as a signal to lock the
rear flip-up glass and the tailgate to prevent the rear
flip-up glass or tailgate from being opened for as long
as the rear wiper is operating. The multi-function
switch circuitry also uses this battery current and a
ground circuit input to directly control the operation
and direction of the reversible electric washer pump/
motor unit.
A separate fuse in the JB provides battery current
to the electronic control circuitry of the rear wiper
module through a fused B(+) circuit. The rear wiper
module uses this fused B(+) input to park the rear
wiper blade off of the rear flip-up glass if the ignition
switch is turned to the Off position while the rear
wiper is operating, or if the ignition switch is turned
to the Off position before the rear wiper blade has
parked. However, if the ignition switch is turned to
the Off position while the rear wiper is operating,
then turned back On, the rear wiper switch must be
cycled to the Off position and back to the On or
Delay position before the rear wiper will operate
again. In addition, the rear wiper module receives an
input from the rear flip-up glass ajar switch on a
flip-up glass ajar switch sense circuit, which prevents
the rear wiper from operating when the flip-up glass
is not closed or fully latched.
The hard wired circuits and components of the rear
wiper and washer system may be diagnosed and
tested using conventional diagnostic tools and proce-
dures. Following are paragraphs that briefly describe
the operation of each of the rear wiper and washer
system operating modes.
CONTINUOUS WIPE MODE When the On posi-
tion of the control ring on the right (wiper) control
stalk of the multi-function switch is selected, the
multi-function switch circuitry directs a battery cur-rent signal to the rear wiper module through the
rear wiper on driver circuit, causing the rear wiper to
cycle continuously at a fixed speed.
INTERMITTENT WIPE MODE When the Delay
position of the control ring on the right (wiper) con-
trol stalk of the multi-function switch is selected, the
multi-function switch circuitry directs a battery cur-
rent signal to the rear wiper module through the
rear wiper intermittent driver circuit, causing the
rear wiper to cycle intermittently at a fixed delay
interval.
WASH MODE When the momentary Wash (after
On) position of the control ring on the right (wiper)
control stalk of the multi-function switch is selected,
the multi-function switch circuitry directs both bat-
tery current and ground to the washer pump/motor
unit, and a battery current signal to be provided to
the rear wiper module through the rear wiper on
driver circuit. This will cause the washer pump/mo-
tor unit to be energized and the rear wiper to cycle
continuously at a fixed speed for as long as the rear
Wash switch is held closed.
WIPE-AFTER-WASH MODE When the momentary
Wash (before Off) position of the control ring on the
right (wiper) control stalk of the multi-function
switch is selected, the multi-function switch circuitry
directs both battery current and ground to the
washer pump/motor unit, and a battery current sig-
nal to be provided to the rear wiper module through
the rear wiper on driver circuit. This will cause the
washer pump/motor unit to be energized and the rear
wiper to cycle continuously at a fixed speed for as
long as the rear Wash switch is held closed. When
the control ring is released to the Off position, the
washer pump/motor is de-energized, but the circuitry
within the rear wiper module will provide several
additional wipe cycles to complete the wipe-after-
wash mode cycle.
DIAGNOSIS AND TESTING - REAR WIPER &
WASHER SYSTEM
REAR WIPER SYSTEM
The diagnosis found here addresses an electrically
inoperative rear wiper system. If the rear wiper
motor operates, but the wiper does not move on the
rear flip-up glass, inspect the mechanical connection
between the rear wiper arm and the rear wiper
motor output shaft. If OK, replace the faulty rear
wiper module. If the wiper operates, but chatters,
lifts, or does not clear the glass, clean and inspect
the rear wiper system components as required. (Refer
to 8 - ELECTRICAL/REAR WIPERS/WASHERS -
INSPECTION) and (Refer to 8 - ELECTRICAL/
REAR WIPERS/WASHERS - CLEANING). Refer to
the appropriate wiring information. The wiring infor-
8R - 30 REAR WIPERS/WASHERSKJ
REAR WIPERS/WASHERS (Continued)

(3) Raise the pivot block latch release tab until it
is perpendicular to the rear wiper blade superstruc-
ture (Fig. 14).
(4) Insert the hook formation on the tip of the
wiper arm through the window in the wiper blade
pivot block/latch unit.
(5) Slide the wiper blade pivot block/latch up into
the hook formation on the tip of the wiper arm until
the hook is firmly seated against the pivot block.
(6) Press the pivot block latch release tab down-
ward until it snaps into its locked position over the
top of the wiper arm.
(7) Gently lower the wiper arm and place the arm
support in the tailgate park ramp.
REAR WIPER MOTOR
DESCRIPTION
The rear wiper motor is concealed within the tail-
gate, below the rear flip-up glass opening and behind
the tailgate inner trim panel. The end of the motor
output shaft that protrudes through the tailgate
outer panel to drive the rear wiper arm and blade is
the only visible component of the rear wiper motor
(Fig. 15). A rubber gasket, a bezel, and a nut secure
and seal the motor output shaft to the tailgate outer
panel. A molded plastic nut cover snaps onto the
bezel to conceal the nut and improve appearance. An
integral connector receptacle connects the rear wipermotor to the vehicle electrical system through a ded-
icated take out and connector of the tailgate wire
harness. The rear wiper motor consists of the follow-
ing major components:
²Bracket- The rear wiper motor bracket consists
of a stamped steel mounting plate for the wiper
motor that is secured with screws through two rub-
ber insulators to the tailgate inner panel.
²Rear Wiper Module- The rear wiper motor
electronic controls are concealed beneath a molded
plastic cover and includes the rear wiper system elec-
tronic logic and rear wiper motor electronic controls.
²Motor- The permanent magnet rear wiper
motor is secured with screws to the rear wiper motor
bracket. The wiper motor includes an integral trans-
mission, and the motor output shaft.
The rear wiper motor cannot be adjusted or
repaired. If any component of the motor is faulty or
damaged, the entire rear wiper motor unit must be
replaced. The motor output shaft gasket, bezel, nut,
and nut cover are available for service replacement.
OPERATION
The rear wiper motor receives non-switched bat-
tery current through a fuse in the Junction Block
(JB) on a fused B(+) circuit and is connected to
ground at all times. The rear wiper motor operation
is controlled by the vehicle operator through battery
current signal inputs received by the rear wiper
motor electronic control module from the rear wiper
switch circuitry that is integral to the right (wiper)
control stalk of the multi-function switch on the
steering column. The module also receives an exter-
nal control input from the flip-up glass ajar switch
sense circuit. If the rear wiper module senses that
the flip-up glass is ajar, it will not allow the rear
wiper motor to operate.
The rear wiper module electronic control logic uses
these inputs, its internal inputs, and its program-
ming to provide a continuous wipe mode, an inter-
mittent wipe mode, a wipe-after-wash mode, and off-
the-glass wiper blade parking. The wiper blade
cycling is controlled by the internal electronic con-
trols of the module. The module controls current flow
to the wiper motor brushes and provides an elec-
tronic speed control that speeds the wiper blade near
the center of the glass, but slows the wiper blade
during directional reversals at each end of the wipe
pattern and during wiper blade off-the-glass parking
for quieter operation. The wiper motor transmission
converts the rotary output of the wiper motor to the
back and forth wiping motion of the rear wiper arm
and blade on the rear flip-up glass.
Fig. 15 Rear Wiper Motor
1 - SCREW (2)
2 - INSULATOR (2)
3 - BRACKET
4 - OUTPUT SHAFT
5 - SEAL
6 - CONNECTOR RECEPTACLE
7 - COVER
8 - MOTOR
KJREAR WIPERS/WASHERS 8R - 41
REAR WIPER BLADE (Continued)

WIRING
TABLE OF CONTENTS
page page
WIRING DIAGRAM INFORMATION...... 8Wa-01-1
COMPONENT INDEX................. 8Wa-02-1
POWER DISTRIBUTION.............. 8Wa-10-1
JUNCTION BLOCK................... 8Wa-12-1
GROUND DISTRIBUTION............. 8Wa-15-1
BUS COMMUNICATIONS............. 8Wa-18-1
CHARGING SYSTEM................. 8Wa-20-1
STARTING SYSTEM................. 8Wa-21-1
FUEL/IGNITION SYSTEM............. 8Wa-30-1
TRANSMISSION CONTROL SYSTEM.... 8Wa-31-1
VEHICLE SPEED CONTROL........... 8Wa-33-1
ANTILOCK BRAKES.................. 8Wa-35-1
VEHICLE THEFT SECURITY SYSTEM.... 8Wa-39-1
INSTRUMENT CLUSTER.............. 8Wa-40-1
HORN/CIGAR LIGHTER/POWER OUTLET . 8Wa-41-1
AIR CONDITIONING-HEATER.......... 8Wa-42-1
AIRBAG SYSTEM................... 8Wa-43-1
INTERIOR LIGHTING................. 8Wa-44-1BODY CONTROL MODULE............ 8Wa-45-1
AUDIO SYSTEM.................... 8Wa-47-1
REAR WINDOW DEFOGGER........... 8Wa-48-1
OVERHEAD CONSOLE................ 8Wa-49-1
FRONT LIGHTING................... 8Wa-50-1
REAR LIGHTING.................... 8Wa-51-1
TURN SIGNALS..................... 8Wa-52-1
WIPERS........................... 8Wa-53-1
TRAILER TOW...................... 8Wa-54-1
POWER WINDOWS.................. 8Wa-60-1
POWER DOOR LOCKS............... 8Wa-61-1
POWER MIRRORS.................. 8Wa-62-1
POWER SEAT...................... 8Wa-63-1
POWER SUNROOF.................. 8Wa-64-1
SPLICE INFORMATION............... 8Wa-70-1
CONNECTOR PIN-OUTS.............. 8Wa-80-1
CONNECTOR/GROUND/
SPLICE LOCATION................. 8Wa-91-1 KJWIRING
8Wa-1

CIRCUIT FUNCTION
U OPEN
V SPEED CONTROL, WIPER/
WASHER
W OPEN
X AUDIO SYSTEMS
Y OPEN
Z GROUNDS
DESCRIPTION - SECTION IDENTIFICATION AND
INFORMATION
The wiring diagrams are grouped into individual
sections. If a component is most likely found in a par-
ticular group, it will be shown complete (all wires,
connectors, and pins) within that group. For exam-
ple, the Auto Shutdown Relay is most likely to be
found in Group 30, so it is shown there complete. It
can, however, be shown partially in another group if
it contains some associated wiring.
Splice diagrams in Section 8W-70 show the entire
splice and provide references to other sections the
splices serves. Section 8W-70 only contains splice dia-
grams that are not shown in their entirety some-
where else in the wiring diagrams.
Section 8W-80 shows each connector and the cir-
cuits involved with that connector. The connectors
are identified using the name/number on the dia-
gram pages.
WIRING SECTION CHART
GROUP TOPIC
8Wa-01 thru
8W-09General information and Diagram
Overview
8Wa-10 thru
8W-19Main Sources of Power and
Vehicle Grounding
8Wa-20 thru
8W-29Starting and Charging
8Wa-30 thru
8W-39Powertrain/Drivetrain Systems
8Wa-40 thru
8W-49Body Electrical items and A/C
8Wa-50 thru
8W-59Exterior Lighting, Wipers and
Trailer Tow
8Wa-60 thru
8W-69Power Accessories
8Wa-70 Splice Information
8Wa-80 Connector Pin Outs
8Wa-91 Connector, Ground and Splice
Locations
DESCRIPTION - CONNECTOR, GROUND AND
SPLICE INFORMATION
CAUTION: Not all connectors are serviced. Some
connectors are serviced only with a harness. A typ-
ical example might be the Supplemental Restraint
System connectors. Always check parts availability
before attempting a repair.
IDENTIFICATION
In-line connectors are identified by a number, as
follows:
²In-line connectors located in the engine compart-
ment are C100 series numbers
²In-line connectors located in the Instrument
Panel area are C200 series numbers.
²In-line connectors located in the body are C300
series numbers.
²Jumper harness connectors are C400 series
numbers.
²Grounds and ground connectors are identified
with a ªGº and follow the same series numbering as
the in-line connectors.
²Splices are identified with an ªSº and follow the
same series numbering as the in-line connectors.
²Component connectors are identified by the com-
ponent name instead of a number. Multiple connec-
tors on a component use a C1, C2, etc. identifier.
LOCATIONS
Section 8W-91 contains connector/ground/splice
location illustrations. The illustrations contain the
connector name (or number)/ground number/splice
number and component identification. Connector/
ground/splice location charts in section 8W-91 refer-
ence the figure numbers of the illustrations.
The abbreviation T/O is used in the component
location section to indicate a point in which the wir-
ing harness branches out to a component. The abbre-
viation N/S means Not Shown in the illustrations
WARNINGS - GENERAL
WARNINGSprovide information to prevent per-
sonal injury and vehicle damage. Below is a list of
general warnings that should be followed any time a
vehicle is being serviced.
WARNING:: ALWAYS WEAR SAFETY GLASSES FOR
EYE PROTECTION.
WARNING: USE SAFETY STANDS ANYTIME A PRO-
CEDURE REQUIRES BEING UNDER A VEHICLE.
8Wa - 01 - 6 8W-01 WIRING DIAGRAM INFORMATIONKJ
WIRING DIAGRAM INFORMATION (Continued)

8W-30 FUEL/IGNITION SYSTEM
Component Page
A/C Compressor Clutch.............. 8Wa-30-34
A/C Compressor Clutch Relay..... 8Wa-30-34, 2, 3
A/C High Pressure Switch............ 8Wa-30-29
A/C Low Pressure Switch.......... 8Wa-30-8, 29
A/C Pressure Transducer....... 8Wa-30-11, 23, 12
Accelerator Pedal Position Sensor...... 8Wa-30-27
Auto Shut Down Relay . . 8Wa-30-13, 14, 15, 24, 28,
31, 16, 17, 2
Battery Temperature Sensor........ 8Wa-30-30, 7
Blower Motor Relay................. 8Wa-30-31
Body Control Module.............. 8Wa-30-8, 33
Boost Pressure Sensor............ 8Wa-30-26, 28
Brake Lamp Switch............ 8Wa-30-8, 32, 33
Cabin Heater...................... 8Wa-30-34
Cabin Heater Relay................. 8Wa-30-34
Camshaft Position Sensor....... 8Wa-30-10, 9, 28
Capacitor...................... 8Wa-30-19, 17
Clockspring..................... 8Wa-30-33, 7
Clutch Switch Override Relay.... 8Wa-30-13, 8, 32
Coil On Plug No. 1................. 8Wa-30-19
Coil On Plug No. 2................. 8Wa-30-20
Coil On Plug No. 3................. 8Wa-30-19
Coil On Plug No. 4................. 8Wa-30-20
Coil On Plug No. 5................. 8Wa-30-19
Coil On Plug No. 6................. 8Wa-30-20
Coil Rail......................... 8Wa-30-17
Controller Antilock Brake............ 8Wa-30-33
Crankshaft Position Sensor...... 8Wa-30-10, 9, 27
Data Link Connector.............. 8Wa-30-25, 6
Diagnostic Junction Port........... 8Wa-30-25, 6
EGR Solenoid..................... 8Wa-30-30
Engine Control Module . . 8Wa-30-24, 25, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36
Engine Coolant Temperature Sensor . 8Wa-30-11, 28,
12
Engine Oil Pressure Sensor..... 8Wa-30-11, 28, 12
Evap/Purge Solenoid................. 8Wa-30-2
Fuel Heater....................... 8Wa-30-31
Fuel Heater Relay.................. 8Wa-30-31
Fuel Injector No. 1............... 8Wa-30-18, 36
Fuel Injector No. 2............... 8Wa-30-18, 36
Fuel Injector No. 3............... 8Wa-30-18, 36
Fuel Injector No. 4............... 8Wa-30-18, 36
Fuel Injector No. 5................. 8Wa-30-18
Fuel Injector No. 6................. 8Wa-30-18
Fuel Pressure Sensor............... 8Wa-30-36
Fuel Pressure Solenoid.............. 8Wa-30-31
Fuel Pump Module............. 8Wa-30-30, 4, 5
Fuel Pump Relay.............. 8Wa-30-4, 2, 3, 5
Fuse 2........................... 8Wa-30-23
Fuse 6................... 8Wa-30-24, 28, 31, 2Component Page
Fuse 10.......................... 8Wa-30-35
Fuse 11.......................... 8Wa-30-35
Fuse 12....................... 8Wa-30-31, 33
Fuse 15...................... 8Wa-30-25, 2, 3
Fuse 16...... 8Wa-30-13, 14, 15, 24, 30, 34, 35, 16
Fuse 21.......................... 8Wa-30-34
Fuse 24...................... 8Wa-30-31, 2, 3
Fuse 26.................. 8Wa-30-18, 24, 17, 2
Fuse 28.......................... 8Wa-30-13
G100.................... 8Wa-30-19, 27, 17, 3
G101............................ 8Wa-30-23
G103................. 8Wa-30-15, 23, 31, 34, 16
G104............................ 8Wa-30-27
G111 ............................ 8Wa-30-31
G112 .......................... 8Wa-30-8, 23
G320........................... 8Wa-30-4, 5
Generator.................. 8Wa-30-24, 4, 3, 5
Glow Plug Assembly................ 8Wa-30-35
Glow Plug Relay No. 1.............. 8Wa-30-35
Glow Plug Relay No. 2.............. 8Wa-30-35
Idle Air Control Motor............ 8Wa-30-21, 22
Ignition Switch.................... 8Wa-30-32
Intake Air Temperature Sensor..... 8Wa-30-11, 12
Junction Block........... 8Wa-30-25, 31, 33, 2, 3
Knock Sensor...................... 8Wa-30-8
Leak Detection Pump.............. 8Wa-30-4, 5
Left Speed Control Switch.......... 8Wa-30-33, 7
Manifold Absolute Pressure Sensor . . 8Wa-30-11, 12
Oxygen Sensor 1/1 Upstream...... 8Wa-30-14, 15
Oxygen Sensor 1/2 Downstream . 8Wa-30-13, 14, 15
Oxygen Sensor 2/1 Upstream......... 8Wa-30-16
Oxygen Sensor 2/2 Downstream.... 8Wa-30-13, 16
Oxygen Sensor Downstream Relay . . 8Wa-30-13, 15,
16
Power Distribution Center . . 8Wa-30-13, 14, 15, 23,
24, 28, 30, 31, 34, 35, 16, 17, 2, 3
Power Steering Pressure Switch....... 8Wa-30-23
Powertrain Control Module . . . 8Wa-30-10, 13, 20, 8,
11, 14, 15, 18, 19, 21, 9, 23, 4, 12, 16, 17, 2, 22, 3,
6, 7, 5
Radiator Fan Motor................. 8Wa-30-23
Radiator Fan Relay................. 8Wa-30-23
Right Speed Control Switch......... 8Wa-30-33, 7
Shifter Assembly................. 8Wa-30-8, 32
Speed Control Servo................. 8Wa-30-8
Starter Motor Relay................ 8Wa-30-13
Throttle Position Sensor.......... 8Wa-30-21, 22
Transfer Case Position Sensor.... 8Wa-30-9, 23, 32
Transmission Control Module . . 8Wa-30-10, 8, 22, 6
Transmission Solenoid/Trs Assembly.... 8Wa-30-10
Water In Fuel Sensor............... 8Wa-30-29
KJ8W-30 FUEL/IGNITION SYSTEM8Wa-30-1