Page 1
LH WIRING DIAGRAMS 8W-1
WIRING DIAGRAMS
CONTENTS
page page
8W-01 GENERAL INFORMATION ....... 8W-01-1
8W-02 COMPONENT INDEX ........... 8W-02-1
8W-10 POWER DISTRIBUTION ........ 8W-10-1
8W-12 JUNCTION BLOCK ............. 8W-12-1
8W-15 GROUND DISTRIBUTION ....... 8W-15-1
8W-20 CHARGING SYSTEM ........... 8W-20-1
8W-21 STARTING SYSTEM ........... 8W-21-1
8W-30 FUEL/IGNITION SYSTEM ....... 8W-30-1
8W-31 TRANSMISSION CONTROL
SYSTEM ......................... 8W-31-1
8W-33 VEHICLE SPEED CONTROL ..... 8W-33-1
8W-35 ANTI-LOCK BRAKES ........... 8W-35-1
8W-40 INSTRUMENT CLUSTER ........ 8W-40-1
8W-41 HORN/CIGAR LIGHTER ......... 8W-41-1
8W-42 AIR CONDITIONING-HEATER .... 8W-42-1
8W-43 AIRBAG SYSTEM ............. 8W-43-1
8W-44 INTERIOR LIGHTING ........... 8W-44-1
8W-45 BODY CONTROL MODULE ...... 8W-45-1
8W-46 MESSAGE CENTER ............ 8W-46-1
8W-47 AUDIO SYSTEM .............. 8W-47-1
8W-48 REAR WINDOW DEFOGGER ..... 8W-48-1
8W-49 OVERHEAD CONSOLE .......... 8W-49-1
8W-50 FRONT LIGHTING ............. 8W-50-1
8W-51 REAR LIGHTING .............. 8W-51-1
8W-52 TURN SIGNALS ............... 8W-52-1
8W-53 WIPERS ..................... 8W-53-1
8W-60 POWER WINDOWS ............ 8W-60-1
8W-61 POWER DOOR LOCKS ......... 8W-61-1
8W-62 POWER MIRRORS ............ 8W-62-1
8W-63 POWER SEAT ................ 8W-63-1
8W-64 POWER SUNROOF ............ 8W-64-1
8W-65 SPEED PROPORTIONAL
STEERING ....................... 8W-65-1
8W-70 SPLICE INFORMATION ......... 8W-70-1
8W-80 CONNECTOR PIN-OUTS ........ 8W-80-1
8W-90 CONNECTOR/GROUND
LOCATIONS ...................... 8W-90-1
8W-95 SPLICE LOCATIONS ........... 8W-95-1
Page 2
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LH 8W - 01 GENERAL INFORMATION 8W-01-1
8W-01 GENERAL INFORMATION
INDEX
page page
DESCRIPTION AND OPERATION
CIRCUIT IDENTIFICATION .................. 3
CONNECTOR/GROUND LOCATIONS ..........1
CONNECTORS .......................... 3
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE DEVICES .................... 5
FASTENERS ............................ 5
HOW TO USE THIS GROUP ................ 1
NOTES, CAUTIONS, and WARNINGS ......... 1
SECTION IDENTIFICATION ................. 1
SPLICE LOCATIONS ...................... 1
SYMBOLS .............................. 3
TAKE OUTS ............................. 3
WIRE CODE IDENTIFICATION ............... 2
DIAGNOSIS AND TESTING
CHECKING FOR TERMINAL SPREADING ...... 6
DESCRIPTION AND OPERATION
HOW TO USE THIS GROUP
The purpose of this group is to show the electrical
circuits in a clear, simple fashion and to make troubleshooting easier. Components that work together
are shown together. All electrical components used in
a specific system are shown on one diagram. The feed
for a system is shown at the top of the page. All
wires, connectors, splices, and components are shown
in the flow of current to the bottom of the page. Wiring which is not part of the circuit represented is referenced to another page/section, where the complete
circuit is shown. In addition, all switches, components, and modules are shown in the at rest posi-
tion with the doors closed and the key removed
from the ignition.
If a component is part of several different circuits,
it is shown in the diagram for each. For example, the
headlamp switch is the main part of the exterior
lighting, but it also affects the interior lighting and
the chime warning system. It is important to real-
ize that no attempt is made on the diagrams to
represent components and wiring as they
appear on the vehicle. For example, a short
piece of wire is treated the same as a long one.
In addition, switches and other components are
shown as simply as possible, with regard to
function only.
INTERMITTENT AND POOR CONNECTIONS .... 6
TROUBLESHOOTING TESTS ................ 6
TROUBLESHOOTING TOOLS ...............5
TROUBLESHOOTING WIRING PROBLEMS ..... 7
SERVICE PROCEDURES
CONNECTOR AND TERMINAL REPLACEMENT . . 9
CONNECTOR REPLACEMENT ..............8
DIODE REPLACEMENT ................... 11
TERMINAL REPLACEMENT ................ 10
TERMINAL/CONNECTOR REPAIR- AUGAT
CONNECTORS ........................10
TERMINAL/CONNECTOR REPAIR-MOLEX
CONNECTORS ......................... 8
WIRING REPAIR .........................7
SPECIAL TOOLS
WIRING/TERMINAL ...................... 12
SECTION IDENTIFICATION
Sections in Group 8W are organized by sub-systems. The sections contain circuit operation descriptions, helpful information, and system diagrams. The
intention is to organize information by system, consistently from year to year.
CONNECTOR/GROUND LOCATIONS
Section 8W-90 contains connector/ground location
illustrations. The illustrations contain the connector
name (or number)/ground number and component
identification. Connector/ground location charts in
Section 8W-90 reference the illustration number for
components and connectors.
Section 8W-80 shows each connector and the circuits involved with that connector. The connectors
are identified using the name/number on the Diagram pages.
SPLICE LOCATIONS
Splice Location charts in Section 8W-70 show the
entire splice, and provide references to other sections
the splice serves.
Section 8W-95 contains illustrations that show the
general location of the splices in each harness. The
illustrations show the splice by number, and provide
a written location.
NOTES, CAUTIONS, and WARNINGS
Throughout this group additional important information is presented in three ways; Notes, Cautions,
and Warnings.
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8W - 01 - 2 8W - 01 GENERAL INFORMATION LH
DESCRIPTION AND OPERATION (Continued)
NOTES are used to help describe how switches or
components operate to complete a particular circuit.
They are also used to indicate different conditions
that may appear on the vehicle. For example, an
up-to and after condition.
CAUTIONS are used to indicate information that
could prevent making an error that may damage the
vehicle.
WARNINGS provide information to prevent personal 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 PROCEDURE REQUIRES BEING UNDER A VEHICLE.
WARNING: BE SURE THAT THE IGNITION SWITCH
ALWAYS IS IN THE OFF POSITION, UNLESS THE
PROCEDURE REQUIRES IT TO BE ON.
WIRE CODE IDENTIFICATION
Each wire shown in the diagrams contains a code
(Fig. 1) which identifies the main circuit, part of the
main circuit, gauge of wire, and color. The color is
shown as a two letter code which can be identified by
referring to the Wire Color Code Chart (Fig. 2)
Fig. 1 Wire Code Identification
WARNING: SET THE PARKING BRAKE WHEN
WORKING ON ANY VEHICLE. AN AUTOMATIC
TRANSMISSION SHOULD BE IN PARK. A MANUAL
TRANSMISSION SHOULD BE IN NEUTRAL.
WARNING: OPERATE THE ENGINE ONLY IN A
WELL-VENTILATED AREA.
WARNING: KEEP AWAY FROM MOVING PARTS
WHEN THE ENGINE IS RUNNING, ESPECIALLY THE
FAN AND BELTS.
WARNING: TO PREVENT SERIOUS BURNS, AVOID
CONTACT WITH HOT PARTS SUCH AS THE RADIATOR, EXHAUST MANIFOLD(S), TAIL PIPE, CATALYTIC CONVERTER, AND MUFFLER.
WARNING: DO NOT ALLOW FLAME OR SPARKS
NEAR THE BATTERY. GASES ARE ALWAYS
PRESENT IN AND AROUND THE BATTERY.
Fig. 2 Wire Color Code Chart
WARNING: ALWAYS REMOVE RINGS, WATCHES,
LOOSE HANGING JEWELRY, AND LOOSE CLOTHING.
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LH 8W - 01 GENERAL INFORMATION 8W-01-3
DESCRIPTION AND OPERATION (Continued)
CIRCUIT IDENTIFICATION
All circuits in the diagrams use an alpha/numeric
code to identify the wire and its function (Fig. 3). To
identify which circuit code applies to a system, refer
to the Circuit Identification Code Chart. This chart
shows the main circuits only and does not show the
secondary codes that may apply to some models.
Fig. 3 Circuit Identification
CONNECTORS
Connectors shown in the diagrams are identified
using the international standard arrows for male and
female terminals (Fig. 4). A connector identifier is
placed next to the arrows to indicate the connector
number (Fig. 4).
Fig. 4 Connector Identification
For viewing connector pin outs, with two terminals
or greater, refer to section 8W-80. This section identifies in-line connectors by number, and component
connectors by name. If a component has two or more
connectors they will be identified as C1, C2, C3...etc.
This sections also provides terminal numbering, circuit identification, wire colors, and functions.
All connectors are viewed from the terminal end
unless otherwise specified. To find the connector location in the vehicle refer to section 8W-90. This section uses the connector identification number from
the wiring diagrams to provide a figure number reference.
TAKE OUTS
The abbreviation T/O is used in the component
location section to indicate a point in which the wiring harness branches out to a component.
SYMBOLS
Various symbols are used throughout the Wiring
Diagrams. These symbols can be identified by referring to the symbol identification chart (Fig. 5).
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8W - 01 - 4 8W - 01 GENERAL INFORMATION LH
DESCRIPTION AND OPERATION (Continued)
Fig. 5 Symbol Identification
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LH 8W - 01 GENERAL INFORMATION 8W-01-5
DESCRIPTION AND OPERATION (Continued)
ELECTROSTATIC DISCHARGE (ESD) SENSITIVE DEVICES
All ESD sensitive components are solid state and a
symbol (Fig. 6) is used to indicate this. When handling any component with this symbol comply with
the following procedures to reduce the possibility of
electrostatic charge build up on the body and inadvertent discharge into the component. If it is not
known whether the part is ESD sensitive, assume
that it is.
(1) Always touch a known good ground before handling the part. This should be repeated while handling the part and more frequently after sliding
across a seat, sitting down from a standing position,
or walking a distance.
(2) Avoid touching electrical terminals of the part,
unless instructed to do so by a written procedure.
(3) When using a voltmeter, be sure to connect the
ground lead first.
(4) Do not remove the part from its protective
packing until it is time to install the part.
(5) Before removing the part from its package,
ground the package to a known good ground on the
vehicle.
Fig. 7 Shock Tower to Spring Minimum Clearance
Area
DIAGNOSIS AND TESTING
TROUBLESHOOTING TOOLS
When diagnosing a problem in an electrical circuit
there are several common tools necessary. These tools
are listed and explained below.
• Jumper Wire - This is a test wire used to connect two points of a circuit. It can be used to bypass
an open in a circuit.
Fig. 6 Electrostatic Discharge Symbol
FASTENERS
CAUTION: At no time when servicing a vehicle, can
a sheet metal screw, bolt, or other metal fastener be
installed in the strut tower to take the place of an
original plastic clip. Also, NO holes can be drilled
into the front strut tower in the area shown in (Fig.
7) for the installation of any metal fasteners into the
strut tower. Because of the minimum clearance in
this area (Fig. 7) installation of metal fasteners
could damage the coil spring coating and lead to a
corrosion failure of the spring. If a plastic clip is
missing, or is lost or broken during servicing a
vehicle, replace only with the equivalent part listed
in the parts catalog.
WARNING: NEVER USE A JUMPER WIRE ACROSS
A LOAD, SUCH AS A MOTOR, CONNECTED
BETWEEN A BATTERY FEED AND GROUND.
• Voltmeter - Used to check for voltage on a circuit. Always connect the black lead to a known good
ground and the red lead to the positive side of the
circuit.
CAUTION: Most of the electrical components used
in today’s vehicle are solid state. When checking
voltages in these circuits use a meter with a 10-megohm or greater impedance.
• Ohmmeter - Used to check the resistance
between two points of a circuit. Low or no resistance
in a circuit means good continuity.
CAUTION: - Most of the electrical components used
in today’s vehicle are Solid State. When checking
resistance in these circuits use a meter with a
10-megohm or greater impedance. In addition, make
sure the power is disconnected from the circuit.
Circuits that are powered up by the vehicle electrical system can cause damage to the equipment and
provide false readings.
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8W - 01 - 6 8W - 01 GENERAL INFORMATION LH
DIAGNOSIS AND TESTING (Continued)
• Probing Tools - These tools are used for probing
terminals in connectors (Fig. 8). Select the proper
size tool from Special Tool Package 6807, and insert
it into the terminal being tested. Use the other end
of the tool to insert the meter probe.
Fig. 8 Probing Tool
INTERMITTENT AND POOR CONNECTIONS
Most intermittent electrical problems are caused
by faulty electrical connections or wiring. It is also
possible for a sticking component or relay to cause a
problem. Before condemning a component or wiring
assembly check the following items.
• Connectors are fully seated
• Spread terminals, or terminal push out
• Terminals in the wiring assembly are fully
seated into the connector/component and locked in
position
• Dirt or corrosion on the terminals. Any amount
of corrosion or dirt could cause an intermittent problem
• Damaged connector/component casing exposing
the item to dirt and moisture
• Wire insulation that has rubbed through causing
a short to ground
• Wiring broke inside of the insulation
CHECKING FOR TERMINAL SPREADING
When an intermittent or open circuit is suspected
it is important to check for a spread terminal. To
accomplish this remove the suspect female terminal
from its connector.
Check the female terminal for drag when mated
with the appropriate male terminal. If the terminal
is spread (no or little drag felt) replace the terminal
using the procedures covered in this section of the
wiring diagrams.
TROUBLESHOOTING TESTS
Before beginning any tests on a vehicles electrical
system use the Wiring Diagrams and study the circuit. Also refer to the Troubleshooting Wiring Problems section in this section.
TESTING FOR VOLTAGE
(1) Connect the ground lead of a voltmeter to a
known good ground (Fig. 9).
(2) Connect the other lead of the voltmeter to the
selected test point. The vehicle ignition may need to
be turned ON to check voltage. Refer to the appropriate test procedure.
Fig. 9 Testing for Voltage
TESTING FOR CONTINUITY
(1) Remove the fuse for the circuit being checked
or, disconnect the battery.
(2) Connect one lead of the ohmmeter to one side
of the circuit being tested (Fig. 10).
(3) Connect the other lead to the other end of the
circuit being tested. Low or no resistance means good
continuity.
TESTING FOR A SHORT TO GROUND
(1) Remove the fuse and disconnect all items
involved with the fuse.
(2) Connect a test light or a voltmeter across the
terminals of the fuse.
(3) Starting at the fuse block, wiggle the wiring
harness about six to eight inches apart and watch
the voltmeter/test lamp.
(4) If the voltmeter registers voltage or the test
lamp glows, there is a short to ground in that general area of the wiring harness.
TESTING FOR A SHORT TO GROUND ON FUSES POWERING SEVERAL LOADS
(1) Refer to the wiring diagrams and disconnect or
isolate all items on the fused circuit.
(2) Replace the blown fuse.
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LH 8W - 01 GENERAL INFORMATION 8W-01-7
DIAGNOSIS AND TESTING (Continued)
Fig. 10 Testing for Continuity Fig. 11 Testing for Voltage Drop
(3) Supply power to the fuse by turning ON the
ignition switch or re-connecting the battery.
(4) Start connecting the items in the fuse circuit
one at a time. When the fuse blows the circuit with
the short to ground has been isolated.
TESTING FOR A VOLTAGE DROP
(1) Connect the positive lead of the voltmeter to
the side of the circuit closest to the battery (Fig. 11).
(2) Connect the other lead of the voltmeter to the
other side of the switch or component.
(3) Operate the item.
(4) The voltmeter will show the difference in voltage between the two points.
TROUBLESHOOTING WIRING PROBLEMS
When troubleshooting wiring problems there are
six steps which can aid in the procedure. The steps
are listed and explained below. Always check for nonfactory items added to the vehicle before doing any
diagnosis. If the vehicle is equipped with these items,
disconnect them to verify these add-on items are not
the cause of the problem.
(1) Verify the problem.
(2) Verify any related symptoms. Do this by performing operational checks on components that are
in the same circuit. Refer to the wiring diagrams.
(3) Analyze the symptoms. Use the wiring diagrams to determine what the circuit is doing, where
the problem most likely is occurring and where the
diagnosis will continue.
(4) Isolate the problem area.
(5) Repair the problem.
(6) Verify proper operation. For this step check for
proper operation of all items on the repaired circuit.
Refer to the wiring diagrams.
SERVICE PROCEDURES
WIRING REPAIR
When replacing or repairing a wire, it is important
that the correct gauge be used as shown in the wiring diagrams. The wires must also be held securely
in place to prevent damage to the insulation.
(1) Disconnect battery negative cable
(2) Remove 1 inch of insulation from each end of
the wire.
(3) Place a piece of heat shrink tubing over one
side of the wire. Make sure the tubing will be long
enough to cover and seal the entire repair area.
(4) Spread the strands of the wire apart on each
part of the exposed wire (example 1). (Fig. 12)
(5) Push the two ends of wire together until the
strands of wire are close to the insulation (example
2) (Fig. 12)
(6) Twist the wires together (example 3) (Fig. 12)
(7) Solder the connection together using rosin core
type solder only. Do not use acid core solder.
(8) Center the heat shrink tubing over the joint,
and heat using a heat gun. Heat the joint until the
tubing is tightly sealed and sealant comes out of both
ends of the tubing.
(9) Secure the wire to the existing ones to prevent
chafing or damage to the insulation
(10) Connect battery and test all affected systems.
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8W - 01 - 8 8W - 01 GENERAL INFORMATION LH
SERVICE PROCEDURES (Continued)
(4) Using special tool 6742 release the locking fingers on the terminal (Fig. 14).
(5) Pull on the wire to remove it from the connector.
(6) Repair or replace the connector or terminal, as
necessary.
Fig. 12 Wire Repair
TERMINAL/CONNECTOR REPAIR-MOLEX
CONNECTORS
(1) Disconnect battery.
(2) Disconnect the connector from its mating half/
component.
(3) Insert the terminal releasing special tool 6742
into the terminal end of the connector (Fig. 13).
Fig. 13 Molex Connector Repair
Fig. 14 Using Special Tool 6742
CONNECTOR REPLACEMENT
(1) Disconnect battery.
(2) Disconnect the connector that is to be repaired
from its mating half/component
(3) Remove the connector locking wedge, if
required (Fig. 15)
Fig. 15 Connector Locking Wedge
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LH 8W - 01 GENERAL INFORMATION 8W-01-9
SERVICE PROCEDURES (Continued)
(4) Position the connector locking finger away from
the terminal using the proper pick from special tool
kit 6680. Pull on the wire to remove the terminal
from the connector (Fig. 16) (Fig. 17).
(5) Reset the terminal locking tang, if it has one.
(6) Insert the removed wire in the same cavity on
the repair connector.
(7) Repeat steps four through six for each wire in
the connector, being sure that all wires are inserted
into the proper cavities. For additional connector pinout identification, refer to the wiring diagrams.
(8) Insert the connector locking wedge into the
repaired connector, if required.
Connect connector to its mating half/component.
(9)
(10) Connect battery and test all affected systems.
CONNECTOR AND TERMINAL REPLACEMENT
(1) Disconnect battery.
(2) Disconnect the connector (that is to be
repaired) from its mating half/component.
(3) Cut off the existing wire connector directly
behind the insulator. Remove six inches of tape from
the harness.
(4) Stagger cut all wires on the harness side at
1/2 inch intervals (Fig. 18).
(5) Remove 1 inch of insulation from each wire on
the harness side.
(6) Stagger cut the matching wires on the repair
connector assembly in the opposite order as was done
on the harness side of the repair. Allow extra length
for soldered connections. Check that the overall
length is the same as the original (Fig. 18).
Fig. 16 Terminal Removal
Fig. 17 Terminal Removal Using Special Tool
Fig. 18 Stagger Cutting Wires
(7) Remove 1 inch of insulation from each wire.
(8) Place a piece of heat shrink tubing over one
side of the wire. Be sure the tubing will be long
enough to cover and seal the entire repair area.
(9) Spread the strands of the wire apart on each
part of the exposed wires.
(10) Push the two ends of wire together until the
strands of wire are close to the insulation.
(11) Twist the wires together.
(12) Solder the connection together using rosin
core type solder only. Do not use acid core solder.
(13) Center the heat shrink tubing over the joint
and heat using a heat gun. Heat the joint until the
tubing is tightly sealed and sealant comes out of both
ends of the tubing
(14) Repeat steps 8 through 13 for each wire.
(15) Re-tape the wire harness starting 1-1/2 inches
behind the connector and 2 inches past the repair.
(16) Re-connect the repaired connector.
(17) Connect the battery, and test all affected systems.
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8W - 01 - 10 8W - 01 GENERAL INFORMATION LH
SERVICE PROCEDURES (Continued)
TERMINAL/CONNECTOR REPAIR- AUGAT
CONNECTORS
(1) Disconnect battery.
(2) Disconnect the connector from its mating half/
component.
(3) Push down on the yellow connector locking tab
to release the terminals (Fig. 19).
Fig. 19 Augat Connector Repair
(4) Using special tool 6932, push the terminal to
remove it from the connector (Fig. 20).
TERMINAL REPLACEMENT
(1) Disconnect battery.
(2) Disconnect the connector being repaired from
its mating half. Remove connector locking wedge, if
required (Fig. 21).
(3) Remove connector locking wedge, if required
(Fig. 21).
Fig. 21 Connector Locking Wedge Tab (Typical)
(4) Position the connector locking finger away
from the terminal using the proper pick from special
tool kit 6680. Pull on the wire to remove the terminal
from the connector (Fig. 22) (Fig. 23).
Fig. 20 Using Special Tool 6932
(5) Repair or replace the connector or terminal as
necessary.
(6) When re-assembling the connector, the locking
wedge must be placed in the locked position to prevent terminal push out.
Fig. 22 Terminal Removal
(5) Cut the wire 6 inches from the back of the
connector.
(6) Remove 1 inch of insulation from the wire on
the harness side.
(7) Select a wire from the terminal repair assem-
bly that best matches the color wire being repaired.
(8) Cut the repair wire to the proper length and
remove 1 inch of insulation.
(9) Place a piece of heat shrink tubing over one
side of the wire. Make sure the tubing will be long
enough to cover and seal the entire repair area.
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LH 8W - 01 GENERAL INFORMATION 8W-01-11
SERVICE PROCEDURES (Continued)
DIODE REPLACEMENT
(1) Disconnect the battery.
(2) Locate the diode in the harness, and remove
the protective covering.
(3) Remove the diode from the harness, pay attention to the current flow direction (Fig. 24).
Fig. 23 Terminal Removal Using Special Tool
(10) Spread the strands of the wire apart on each
part of the exposed wires.
(11) Push the two ends of wire together until the
strands of wire are close to the insulation.
(12) Twist the wires together.
(13) Solder the connection together using rosin
core type solder only. Do not use acid core solder.
(14) Center the heat shrink tubing over the joint
and heat using a heat gun. Heat the joint until the
tubing is tightly sealed and sealant comes out of both
ends of the tubing.
(15) Insert the repaired wire into the connector.
(16) Install the connector locking wedge, if
required, and reconnect the connector to its mating
half/component.
(17) Re-tape the wire harness starting 1-1/2 inches
behind the connector and 2 inches past the repair.
(18) Connect battery, and test all affected systems.
(4) Remove the insulation from the wires in the
harness. Only remove enough insulation to solder in
the new diode.
(5) Install the new diode in the harness, making
sure current flow is correct. If necessary refer to the
appropriate wiring diagram for current flow.
(6) Solder the connection together using rosin core
type solder only. Do not use acid core solder.
(7) Tape the diode to the harness using electrical
tape making, sure the diode is completely sealed
from the elements.
(8) Re-connect the battery, and test affected systems.
Fig. 24 Diode Identification
Page 14
8W - 01 - 12 8W - 01 GENERAL INFORMATION LH
SPECIAL TOOLS
WIRING/TERMINAL
Terminal Removing Tool 6934
Probing Tool Package 6807
Terminal Pick 6680
Terminal Removing Tool 6932
Page 15
LH 8W - 02 COMPONENT INDEX 8W-02-1
8W-02 COMPONENT INDEX
INDEX
GENERAL INFORMATION
INTRODUCTION
This section provides an alphabetical listing of all
the components covered in group 8W. For information
on system operation, refer to the appropriate section
of the wiring diagrams.
Page 16
8W - 02 - 2 8W - 02 COMPONENT INDEX LH
8W-02 COMPONENT INDEX
INDEX
page
SCHEMATICS AND DIAGRAMS ........................................................... 1
GENERAL INFORMATION ................................................................ 3
COMPONENT INDEX
Component Page
A/C Ambient Temperature Sensor .......8W-42, 45
A/C Compressor Clutch ..................8W-42
A/C Compressor Clutch Relay .............8W-42
A/C Heater Control...................8W-42, 48
A/C Pressure Transducer ..............8W-30, 42
ABS Diode ............................8W-35
ABS Main Relay........................8W-35
ABS Pump Motor .......................8W-35
ABS Pump Motor Relay ..................8W-35
ABS Warning Lamp ..................8W-35, 46
Airbag Control Module...................8W-43
Airbag Sensor..........................8W-43
Airbag Warning Lamp ................8W-40, 43
Ash Receiver Lamp .....................8W-44
ATC Power Module......................8W-42
Automatic Day/Night Mirror ..............8W-44
Automatic Shut Down Relay............8W-20, 30
Automatic Temperature Control Module. . .8W-42, 48
Autostick Switch .......................8W-31
Back-Up Lamps ........................8W-51
Battery...............................8W-20
Blend Door Actuator..................8W-42, 45
Blower Motor ..........................8W-42
Blower Motor Resistor Block ..............8W-42
Body Control Module ....................8W-45
Brake Fluid Level Switch No. 1 ............8W-40
Brake Warning Lamp.................8W-35, 40
BUX Fuse Holder ....................8W-10, 12
Camshaft Position (CMP) Sensor ...........8W-30
Capacitor .............................8W-30
Center High Mounted Stop Lamp (CHMSL) . .8W-51
Center Instrument Panel Speaker ..........8W-47
Charging System Warning Lamp .........8W-40-5
Cigar Lighter ..........................8W-41
Circuit Breaker 22 (JB) ..................8W-12
Circuit Breaker 23 (JB) ..................8W-12
Clockspring......................8W-33, 41, 43
Combination Flasher ....................8W-52
Controller Anti-Lock Brake ...............8W-35
Crankshaft Position (CKP) Sensor ..........8W-30
Cruise Engaged Lamp ................8W-33, 40
Data Link Connector ....................8W-30
Direction Lamps .....................8W-50, 52
Door Ajar Lamp ........................8W-46
Component Page
Door Courtesy Lamp ....................8W-44
Door Jamb Switches..................8W-44, 45
Door Lock Relay........................8W-61
Door Unlock Relay ......................8W-61
Driver Airbag ..........................8W-43
Driver Power Seat Switch ................8W-63
Duty Cycle Evap/Purge Solenoid ...........8W-30
EGR Solenoid ..........................8W-30
Engine Coolant Temperature Gauge.........8W-40
Engine Coolant Temperature Lamp .........8W-40
Engine Coolant Temperature (ECT) Sensor . . .8W-30
Engine Oil Pressure Switch ...............8W-40
Engine Starter Motor....................8W-21
Engine Starter Motor Relay ...............8W-21
Evaporator Temperature Sensor.........8W-42, 45
Fog Lamps .........................8W-50, 51
Forward/Backward Motor.................8W-63
Front Vertical Motor.....................8W-63
Fuel Gauge............................8W-40
Fuel Injectors ..........................8W-30
Fuel Level Sensor.......................8W-40
Fuel Pump Module......................8W-30
Fuel Pump Relay .......................8W-30
Fuses (JB) ............................8W-12
Fuses (PDC) ...........................8W-10
Fusible Link...........................8W-20
Generator.............................8W-20
Glove Box Lamp........................8W-44
Ground Distribution.....................8W-15
Headlamp Delay Relay................8W-12, 50
Headlamp Dimmer Switch .............8W-12, 50
Headlamp Leveling Motors ...............8W-50
Headlamp Switch .......................8W-50
Headlamps ............................8W-50
Heated Oxygen Sensors ..................8W-30
Heated Seat ...........................8W-63
High Beam Indicator Lamp ...............8W-40
High Speed Radiator Fan Relay ............8W-42
High/Low Wiper Relay ...................8W-53
Horn Relay .........................8W-12, 41
Horn Switches .........................8W-41
Horns ................................8W-41
Hybrid Pressure Switch ..................8W-43
Idle Air Control (IAC) Motor ..............8W-30
Page 17
LH 8W - 02 COMPONENT INDEX 8W-02-3
GENERAL INFORMATION (Continued)
Component Page
Ignition Coil Pack.......................8W-30
Ignition Coil Pack Helical Shield ...........8W-30
Ignition Switch.........................8W-10
Illumination Lamps ..................8W-40, 44
In-Car Temperature Sensor/Aspirator Motor . .8W-42
Instrument Cluster .....................8W-40
Instrument Panel Speakers ...............8W-47
Intake Air Temperature Sensor ............8W-30
Intermittent Wiper Relay .................8W-53
Intermittent Wiper Switch ................8W-53
Junction Block .........................8W-12
Key-In Halo Lamp ......................8W-44
Knock Sensors .........................8W-30
License Lamps .........................8W-51
Low Fuel Lamp ........................8W-40
Low Speed Radiator Fan Relay ............8W-42
Low Washer Fluid Lamp .................8W-46
Malfunction Indicator Lamp (Check Engine) . .8W-40
Manifold Absolute Pressure (MAP) Sensor. . . .8W-30
Manifold Tuning Valve Solenoid............8W-30
Message Center ........................8W-46
Mode Door Actuator ..................8W-42, 45
Odometer .............................8W-40
Oil Pressure Warning Lamp...............8W-40
Overhead Console.......................8W-49
Overhead Map/Courtesy Lamp.............8W-44
Park Brake Switch......................8W-40
Passenger Airbag .......................8W-43
Passenger Power Seat Switch..............8W-63
Position Lamps.........................8W-50
Power Amplifier ........................8W-47
Power Antenna.........................8W-47
Power Distribution Center ................8W-10
Power Door Lock Motors .................8W-61
Power Door Lock Switches ................8W-61
Power Mirror Switch ....................8W-62
Power Mirrors .........................8W-62
Power Window Motors ...................8W-60
Power Window Switches..................8W-60
Powertrain Control Module ...............8W-30
Radiator Fan Motor Assembly .............8W-42
Radio ................................8W-47
Reading/Courtesy Lamp Switches ..........8W-44
Reading/Courtesy Lamps .................8W-44
Rear Vertical Motor .....................8W-63
Rear Window Defogger...................8W-48
Rear Window Defogger Antenna Module .....8W-48
Recirculation Door Actuator ............8W-42, 45
Recline Motor..........................8W-63
Remote Keyless Entry Module .............8W-61
Component Page
Repeater Lamps .....................8W-50, 52
Seat Belt Switch........................8W-40
Seat Belt Warning Lamp .................8W-40
Speakers..............................8W-47
Speed Proportional Steering Module ........8W-65
Speed Proportional Steering Solenoid........8W-65
Speedometer...........................8W-40
Splice Information ......................8W-70
Stop Lamp Switch ......................8W-33
Sun Sensor .........................8W-42, 45
Sunroof Control Module ..................8W-64
Sunroof Motor .........................8W-64
Sunroof Position Sensor ..................8W-64
Sunroof Switch.........................8W-64
Tachometer............................8W-40
Tail Lamps ............................8W-51
Tail/Stop Lamps ........................8W-51
Throttle Position (TP) Sensor..............8W-30
Traction Control Active Lamp...........8W-35, 46
Traction Control Switch ..................8W-35
Traction Control Warning Lamp.........8W-35, 46
Transmission Control Module..............8W-31
Transmission Output Shaft Speed Sensor . . . .8W-31
Transmission Range Indicator .............8W-40
Transmission Range Switch ...............8W-31
Transmission Relay .....................8W-31
Transmission Solenoid And Pressure Switch
Assembly ...........................8W-31
Trip Odometer .........................8W-40
Trunk Ajar Lamp .......................8W-46
Trunk Ajar Switch ...................8W-44, 46
Trunk Lamp ...........................8W-44
Trunk Release Solenoid ..................8W-61
Trunk Release Switch....................8W-61
Turbine Speed Sensor....................8W-31
Turn Signal Indicators ...................8W-52
Turn Signal Lamp ......................8W-52
Turn Signal Lamps......................8W-51
Turn Signal/Hazard Warning Switch ........8W-52
Underhood Lamp .......................8W-44
Universal Garage Door Opener ............8W-44
Vehicle Speed Control Servo...............8W-33
Vehicle Speed Control/Horn Switch ......8W-33, 41
Visor/Vanity Lamps .....................8W-44
Washer Fluid Level Sensor................8W-53
Wheel Speed Sensors ....................8W-35
Windshield Washer Pump Motor ...........8W-53
Windshield Wiper Motor..................8W-53
Page 18
Page 19
LH 8W - 10 POWER DISTRIBUTION 8W-10-1
8W-10 POWER DISTRIBUTION
INDEX
page
SCHEMATICS AND DIAGRAMS ........................................................... 1
DESCRIPTION AND OPERATION ......................................................... 12
Component Page
A/C Compressor Clutch.................8W-10-8
A/C Compressor Clutch Relay ............8W-10-8
A/C Heater Control ...................8W-10-11
ABS Main Relay .....................8W-10-10
ABS Pump Motor .....................8W-10-7
ABS Pump Motor Relay ................8W-10-7
Automatic Shut Down Relay .............8W-10-7
Automatic Temperature Control Module . . .8W-10-11
Battery ..........................8W-10-4, 11
Body Control Module...................8W-10-5
Bux Fuse Holder ......................8W-10-9
Circuit Breaker 22 (JB)................8W-10-10
Circuit Breaker 23 (JB).................8W-10-9
Combination Flasher ..................8W-10-10
Controller Anti-Lock Brake ...........8W-10-7, 10
Engine Starter Motor ................8W-10-4, 5
Engine Starter Motor Relay ...........8W-10-5, 6
Fuel Pump Module ....................8W-10-5
Fuel Pump Relay......................8W-10-5
Fuse 1 (BUX).........................8W-10-9
Fuse 1 (JB) .........................8W-10-11
Fuse 1 (PDC)......................8W-10-4, 10
Fuse 2 (JB) ..........................8W-10-6
Fuse 2 (PDC).........................8W-10-8
Fuse 3 (JB) ..........................8W-10-6
Fuse 4 (JB) ..........................8W-10-9
Fuse 5 (JB) ..........................8W-10-9
Fuse 6 (JB) .........................8W-10-10
Fuse 7 (JB) .........................8W-10-10
Fuse 8 (JB) ..........................8W-10-9
Fuse 9 (JB) ..........................8W-10-9
Fuse 10 (JB) .........................8W-10-6
Fuse 13 (JB) .........................8W-10-9
Fuse 14 (JB) .........................8W-10-6
Fuse 17 (JB) .........................8W-10-6
Fuse 18 (JB) .........................8W-10-6
Fuse 19 (JB) .........................8W-10-6
Fuse 20 (JB) .........................8W-10-6
Fuse 21 (JB) ........................8W-10-10
Fuse A (PDC).......................8W-10-4, 5
Fuse B (PDC) ......................8W-10-4, 7
Fuse C (PDC) ......................8W-10-4, 7
Fuse D (PDC) ......................8W-10-4, 8
Fuse E (PDC) ......................8W-10-4, 8
Fuse E (PDC) ........................8W-10-8
Fuse F (PDC).......................8W-10-4, 9
Fuse G (PDC) ......................8W-10-4, 9
Component Page
Fuse H (PDC) ......................8W-10-4, 9
Fuse I (PDC)......................8W-10-4, 10
Fuse J (PDC)......................8W-10-4, 10
Fusible Link ......................8W-10-4, 11
G200 ...............................8W-10-5
Generator ...........................8W-10-4
Headlamp Delay Relay .................8W-10-9
Headlamp Dimmer Switch ..............8W-10-9
Headlamp Switch .....................8W-10-9
High Speed Radiator Fan Relay ..........8W-10-8
High/Low Wiper Relay..................8W-10-8
Ignition Switch ..................8W-10-5, 6, 10
Instrument Cluster ....................8W-10-5
Intermittent Wiper Relay ...............8W-10-8
Junction Block ..............8W-10-5, 6, 9, 10, 11
Low Speed Radiator Fan Relay ...........8W-10-8
Power Distribution Center . .8W-10-4, 5, 6, 7, 8, 9, 10
Powertrain Control Module..............8W-10-7
Radiator Fan Motor Assembly............8W-10-8
Rear Window Defogger ................8W-10-11
Rear Window Defogger Antenna Module . . .8W-10-11
S100 ...............................8W-10-4
S101 ..............................8W-10-11
S102 ...............................8W-10-8
S103 ..............................8W-10-10
S104 ..............................8W-10-10
S106 ...............................8W-10-4
S107 ...............................8W-10-5
S109 ...............................8W-10-4
S113 ...............................8W-10-6
S116 ...............................8W-10-7
S117 ...............................8W-10-7
S129 ...............................8W-10-7
S153 ...............................8W-10-7
S157 ...............................8W-10-9
S160 ...............................8W-10-8
S201 ...............................8W-10-9
S202 ...............................8W-10-5
S203 ...............................8W-10-9
S205 ..............................8W-10-11
S236 ...............................8W-10-5
Transmission Control Module ..........8W-10-6, 7
Transmission Relay ....................8W-10-7
Transmission Solenoid And Pressure Switch
Assembly..........................8W-10-7
Windshield Wiper Motor ................8W-10-8
Page 20
8W - 10 - 2 8W-10 POWER DISTRIBUTION
POWER DISTRIBUTION CENTER
LH
1
HIGH SPEED
RADIATOR
FAN RELAY
2
LOW SPEED
RADIATOR
FAN RELAY
3
A/C COMPRESSOR
CLUTCH RELAY
FGHI J
EDCBA
5
FUEL PUMP
RELAY
BUS BAR
7
NOT USED
8
ENGINE STARTER
MOTOR RELAY
9
TRANSMISSION
RELAY
4
AUTOMATIC SHUT
DOWN RELAY
6
INTERMITTENT
WIPER RELAY
10
HIGH/LOW
WIPER RELAY
11
ABS MAIN
RELAY
ABS PUMP
MOTOR RELAY
978W-11 LH001002
12
Page 21
LH
8W-10 POWER DISTRIBUTION 8W - 10 - 3
HIGH SPEED RADIATOR FAN RELAY (1)
A
B
C
D
E
F18 20 LG/BK
A16 12 RD/LG
C27 20 DB/PK
C25 12 YL
-
LOW SPEED RADIATOR FAN RELAY (2)
A
B
C
D
E
F18 20 LB/BK
A16 12 RD/LG
C24 20 WT
C23 12 TN
-
A/C COMPRESSOR CLUTCH RELAY (3)
A
B
C
D
E
F18 20 LB/BK
A16 12 RD/LG
C28 20 DB/OR
C25 12 DB/BK
-
NOT USED (7)
A
B
C
D
E
-
-
-
-
-
ENGINE STARTER MOTOR RELAY (8)
A
B
C
D
E
A41 16 YL
A1 16 RD
T41 20 BK/LG
T40 16 LG
-
TRANSMISSION RELAY (9)
A
B
C
D
E
T15 20 LG
A14 16 RD/WT
Z1 20 BK
T16 16 RD
-
AUTOMATIC SHUT DOWN RELAY (4)
A
B
C
D
E
A14 16 RD/WT
A14 16 RD/WT
K51 20 DB/YL
A142 16 DG/OR
A
B
C
-
D
E
HI/LO WIPER RELAY (10)
F13 20 DB
F13 20 DB
V5 12 LG/BK
V16 20 VT
V4 12 RD/YL
V3 12 BR/WT
FUEL PUMP RELAY (5)
A
B
C
D
E
F12 20 DB/WT
A1 16 RD
K31 20 BR
A141 16 DG/BK
1
2
3
-
4
5
ABS MAIN RELAY (11)
B120 14 BR/WT
B58 20 OR/BK
Z1 14 BK
A20 14 RD/DG
F20 20 WT
INTERMITTENT WIPER RELAY (6)
A
B
C
D
E
LH001003 978W-11
F13 20 DB
V5 12 LG/BK
V14 20 DG/YL
A5 12 RD/DB
Z1 12 BK
ABS PUMP MOTOR RELAY (12)
1
2
3
4
A10 12 DB
B116 20 GY
B120 14 BR/WT
B82 12 BR/WT
Page 22
8W - 10 - 4 8W-10 POWER DISTRIBUTION
LH
S109
A15
16
PK
1
A15
16
PK
A
B
FUSIBLE
LINK
A15
22
WT
S100
C101
FUSE
1
20A
(8W-10-10)
BATTERY
(8W-20-2)
FUSE
A
20A
(8W-10-5)
A
A1
12
RD
TO
S107
A0
6
RD
ENGINE
STARTER
MOTOR
(8W-21-2)
FUSE
C
40A
(8W-10-7) (8W-10-8)
CD
FUSE
B
20A
(8W-10-7)
B
A14
16
RD/WT
TO TO
S116
A0
6
BK
A0
6
BK
A11 6 BK/GY
A10
12
DB
ABS
PUMP
MOTOR
RELAY
A16
12
RD/LG
TO
S102
FUSE
D
40A
FUSIBLE
LINK
A11
12
BK
A11
6
BK/GY
S106
POWER
DISTRIBUTION
CENTER
FUSE
F
20A
(8W-10-9)
F
FUSE
E
30A
(8W-10-8)
E
A5
12
RD/DB
TO
S160
GENERATOR
(8W-20-2)
A13
12
PK/WT
TO
S157
FUSE
G
20A
(8W-10-9) (8W-10-10) (8W-10-10)
G
A7
16
RD/BK
TO
JUNCTION
BLOCK
L9
18
BK/WT
TO
JUNCTION
FUSE
H
30A
(8W-10-9)
A3
14
RD/WT
TO
BLOCK
COMBINATION
FLASHER
978W-11 LH001004
FUSE
I
30A
IJ
A20
14
RD/DG
TO
S104
FUSE
J
40A
A2
12
PK/BK
TO
IGNITION
SWITCH
Page 23
LH
8W-10 POWER DISTRIBUTION 8W - 10 - 5
BATT A0
(8W-10-4)
POWER
DISTRIBUTION
T40
3
T40
CENTER
(8W-10-4)
A1
16
RD
8B
16
LG
C101
16
LG
23
FUSE
A
20A
A
A1
12
RD
A1
16
RD
8D
C110
A1
16
RD
6 10
14
3
2
0
4 75
A81
16
RD/WT
ENGINE
STARTER
MOTOR
(8W-21-2)
2
0
1
A21
16
DB
S107
A1
16
RD
5B
ENGINE
STARTER
MOTOR
RELAY
(IN PDC)
(8W-21-2)
5D
A141
DG/BK
12
16
C2
FUEL
PUMP
RELAY
(IN PDC)
(8W-30-3)
JUNCTION
BLOCK
(8W-12-3)
3
C9
3
C309
A141
16
DG/BK
1
BATT A2
(8W-10-10)
FUEL
PUMP
MODULE
(8W-30-3)
41
2
3
8 2
A41
16
YL
0
3
A31
16
BK/WT
1441
A22
12
BK/OR
A2
12
PK/BK
3
2
0
Z1
22
BK
INSTRUMENT
BRAKE
WARNING
LAMP
6
GY/BK
CLUSTER
(8W-40-6)
C1
G9
22
S202
(8W-12-25)
BODY
KEY-IN
IGNITION
SWITCH
SENSE
20
G9
22
GY/BK
9
14
2
0
G26
3
3
CONTROL
MODULE
(8W-45-2)
C3
22
LB
KEY-IN
SWITCH
IGNITION
SWITCH
1 START
2 RUN
0 OFF
3 LOCK
4 ACC
S236
ST-RUN A21
(8W-10-6)
ST-RUN-OFF A81
(8W-10-6)
LH001005 978W-11
ST A41
(8W-10-6) (8W-10-10)
RUN-ACC A31
(8W-10-6)
RUN A22
(8W-15-6)
Z1
20
BK
G200
(8W-15-7)
Page 24
8W - 10 - 6 8W-10 POWER DISTRIBUTION
LH
BATT A1 BATT A2
14
2
0
A81
16
RD/WT
(8W-10-5) (8W-10-10)
3
2
1
A21
16
DB
3
0
84 75
A41
16
YL
41
2
3
0
A31
16
BK/WT
1441
2
0
A22
12
BK/OR
RUN A22
(8W-10-10)
5
C4
FUSE
2
14
3
FUSE
3
10A
2
IGNITION
SWITCH
1 START
KEY-IN
3
0
SWITCH
2 RUN
0 OFF
3 LOCK
4 ACC
(8W-10-5)
JUNCTION
BLOCK
FUSE
10
10A10A
(8W-12-9)(8W-12-5) (8W-12-5)
(8W-12-2)
4
C6
FUSE
17
5A
(8W-12-19)
3
C6
FUSE
14
5A 10A
40
8
C110
A41
16
YL
A41
16
YL
TRANSMISSION
CONTROL
MODULE
(8W-31-2)
FUSE
18
10A
(8W-12-19)(8W-12-17) (8W-12-19) (8W-12-20)
S113
A41
16
YL
8A
FUSE
19 20
FUSE
10A
ENGINE
STARTER
MOTOR
RELAY
(IN PDC)
(8W-21-2)
JUNCTION
BLOCK
(8W-12-2)
978W-11 LH001006
Page 25
LH
8W-10 POWER DISTRIBUTION 8W - 10 - 7
BATT A0
FUSE
B
20A
B
A14
16
RD/WT
(8W-10-4)
C
1
4
B82
12
BR/WT
B82
12
BR/WT
2
POWER
DISTRIBUTION
FUSE
C
40A
A10
12
DB
CENTER
(8W-10-4)
ABS
PUMP
MOTOR
RELAY
(8W-35-3)
S153
B82
14
BR/WT
34
ABS
PUMP
MOTOR
(8W-35-3) (8W-35-3)
CONTROLLER
ANTI-LOCK
BRAKE
S116
A14
16
RD/WT
A14
16
RD/WT
4C 4D
K51
20
DB/YL
RD/WT
4B4A
A142
16
DG/OR
A14
16
AUTOMATIC
SHUT
DOWN
RELAY
(IN PDC)
(8W-30-2)
A14
16
RD/WT
9B
TRANSMISSION
RELAY
(IN PDC)
(8W-31-2)
9D
T16
16
RD
A14
16
RD/WT
S117
7
TO
S129
(8W-70-4)
(8W-70-5)
46
C2
67
C2
POWERTRAIN
CONTROL
MODULE
(8W-30-2) (8W-31-2)
LH001007 978W-11
C140
T16
16
RD
4
T16
16
RD
TRANSMISSION
SOLENOID AND
PRESSURE
SWITCH
ASSEMBLY
(8W-31-6)
(8W-31-7)
T16
16
RD
1716
56
TRANSMISSION
CONTROL
MODULE
Page 26
8W - 10 - 8 8W-10 POWER DISTRIBUTION
LH
BATT A0
D
A16
12
RD/LG
(8W-10-4)
FUSE
D
40A
E
RD/DB
RD/DB
6D
10B
10D 10E
V4
12
RD/YL
2 3
A5
12
A5
12
6B
FUSE
E
30A
V5
12
LG/BK
BR/WT
POWER
DISTRIBUTION
CENTER
(8W-10-4)
INTERMITTENT
WIPER
RELAY
(IN PDC)
(8W-53-3)
HIGH/
LOW
WIPER
RELAY
(IN PDC)
(8W-53-3)
V3
12
WINDSHIELD
WIPER
MOTOR
(8W-53-3)
A5
12
RD/DB
B
A
S160
FUSE
2
20A
S102
POWER
DISTRIBUTION
CENTER
(8W-10-4)
3D
C2
12
DB/BK
1
A16A16
12
RD/LG
3B
A/C
COMPRESSOR
CLUTCH
RELAY
(IN PDC)
(8W-42-7)
A/C
COMPRESSOR
CLUTCH
(8W-42-7)
A16
12
RD/LG
1B
HIGH
SPEED
RADIATOR
FAN
1D 2D
C25
12
YL
3 2
RELAY
2B
C23
12
TN
12
RD/LG
LOW
SPEED
RADIATOR
FAN
RELAY
(IN PDC)(IN PDC)
(8W-42-8)(8W-42-8)
RADIATOR
FAN
MOTOR
ASSEMBLY
(8W-42-8)
978W-11 LH001008
Page 27
LH
8W-10 POWER DISTRIBUTION 8W - 10 - 9
BATT A0
F
A13
12
PK/WT
(8W-10-4)
FUSE
F
20A
S157
A13
12
PK/WT
19
C110
A13
12
PK/WT
6
C211
A13
12
PK/WT
A
A13
12
PK/WT
6
C1
FUSE
9
15A
(8W-12-9)
FUSE
8
20A
(8W-12-8)
BUX
FUSE
B
F39
20
PK/LG
1
F39
20
PK/LG
2
FUSE
1 (BUX)
15A
C212
C1
HOLDER
HEADLAMP
SWITCH
(8W-50-2)
G
RD/BK
12
A7
16
C1
FUSE
G
20A
FUSE
13
10A
(8W-12-14)
FUSE
4
20A
(8W-12-5)
POWER
DISTRIBUTION
25
1
CENTER
(8W-10-4)
2321
HEADLAMP
DELAY
RELAY
(8W-50-3)
FUSE
5
5A
(8W-12-6)
C7
L2
14
LG
4
C7
A3
14
RD/WT
FUSE
H
30A
H
A3
14
RD/WT
1
C1
CIRCUIT
BREAKER
23
20A
(8W-12-20)
S203
A3
14
RD/WT
A3
14
RD/WT
6
L2
14
LG
7
HEADLAMP
DIMMER
SWITCH
(PART OF
MULTI-FUNCTION
SWITCH)
7
C1 C1
(8W-50-4)
JUNCTION
BLOCK
(8W-12-2)
S201
L2
14
LG
6
HEADLAMP
SWITCH
(8W-50-2)
LH001009 978W-11
Page 28
8W - 10 - 10 8W-10 POWER DISTRIBUTION
LH
BATT A0
I
A20
14
RD/DG
FUSE
I
30A
(8W-10-4)
BATT A15
A
FUSE
1
20A
B
L9
18
BK/WT
1
L9
18
BK/WT
2
(8W-10-4)
COMBINATION
FLASHER
(8W-52-2)
BATT A0
FUSE
J
40A
J
A2
12
PK/BK
21
C110
A2
12
PK/BK
(8W-10-4)
POWER
DISTRIBUTION
CENTER
(8W-10-4)
A20
14
RD/DG
7 4
CONTROLLER
ANTI-LOCK
BRAKE
S104
A20
14
RD/DG
1
B120
BR/WT
S103
(8W-35-2)
14
TO
FUSE
6
ABS
MAIN
RELAY
(8W-35-2)(8W-35-2)
FUSE
7
10A
10
IGNITION
SWITCH
1 START
14
3
2
0
2 RUN
0 OFF
3 LOCK
4 ACC
7
A22
12
BK/OR
3
C7
FUSE
21
25A10A
(8W-12-20)(8W-12-7) (8W-12-7)
(8W-10-5)
CIRCUIT
BREAKER
22
20A
(8W-12-20)
JUNCTION
BLOCK
(8W-12-2)
978W-11 LH001010
Page 29
LH
8W-10 POWER DISTRIBUTION 8W - 10 - 11
A4
12
BK/PK
2
A4
12
BK/PK
C101
S101
FUSIBLE
LINK
A4
18
BR
BATTERY
(8W-20-2)
A4
12
BK/PK
20
C110
A4
12
BK/PK
MANUAL A/C ATC
A4
12
BK/PK
8
C2
HEATER
CONTROL
(8W-48-2)
1
C2
C15
12
BK/WT
BK/PK
1
2
C2
C15
12
BK/WT
A4
12
C2
AUTOMATICA/C
TEMPERATURE
CONTROL
MODULE
(8W-48-3)
C15
12
BK/WT
S205
C15
12
BK/WT
C15
12
BK/WT
1
C8
JUNCTION
BLOCK
FUSE
1
5A
(8W-12-5)
LH001011 978W-11
(8W-12-2)
REAR
WINDOW
ANTENNA OTHERS
C15
12
BK/WT
C15
12
BK/WT
2
1
C211
REAR
WINDOW
DEFOGGER
ANTENNA
MODULE
(8W-48-2)
(8W-48-3)
C15
12
BK/WT
REAR
WINDOW
DEFOGGER
(8W-48-2)
(8W-48-3)
Page 30
8W - 10 - 12 8W - 10 POWER DISTRIBUTION LH
8W-10 POWER DISTRIBUTION
INDEX
page
DESCRIPTION AND OPERATION
INTRODUCTION ......................... 12
DESCRIPTION AND OPERATION
INTRODUCTION
This section covers the power distribution center
and all circuits involved with it. For additional information on system operation, refer to the appropriate
section of the wiring diagrams.
Page 31
LH 8W - 12 JUNCTION BLOCK 8W-12-1
8W-12 JUNCTION BLOCK
INDEX
page
SCHEMATICS AND DIAGRAMS ........................................................... 1
DESCRIPTION AND OPERATION ......................................................... 26
Component Page
A/C Compressor Clutch Relay ..............8W-12-20
A/C Heater Control ....................8W-12-5, 7
ABS Main Relay ........................8W-12-7
Airbag Control Module .................8W-12-7, 19
Atc Power Module ......................8W-12-20
Automatic Day/Night Mirror ...............8W-12-17
Automatic Temperature Control Module ......8W-12-5, 7
Autostick Switch .......................8W-12-19
Blower Motor Resistor Block ...............8W-12-20
Body Control Module ........8W-12-6, 16, 17, 19, 22, 23
Brake Fluid Level Switch No. 1 .............8W-12-25
Bux Fuse Holder.....................8W-12-10, 12
Cigar Lighter ..........................8W-12-8
Circuit Breaker 22 (JB) ..................8W-12-20
Circuit Breaker 23 (JB) ..................8W-12-21
Clockspring............................8W-12-8
Combination Flasher .....................8W-12-5
Controller Anti-Lock Brake ..............8W-12-7, 25
Data Link Connector ....................8W-12-14
Door Lock Relay ..................8W-12-21, 22, 23
Door Unlock Relay ...................8W-12-21, 23
Driver Power Seat Switch.................8W-12-21
Duty Cycle Evap/Purge Solenoid ............8W-12-20
EGR Solenoid .........................8W-12-20
Fuel Pump Module......................8W-12-24
Fuel Pump Relay ....................8W-12-19, 24
Fuse 1 (JB)............................8W-12-5
Fuse 2 (JB)............................8W-12-5
Fuse 2............................8W-12-10, 12
Fuse 3 (JB)............................8W-12-5
Fuse 3............................8W-12-10, 12
Fuse 4 (JB)............................8W-12-5
Fuse 5 (JB)............................8W-12-6
Fuse 6 (JB)............................8W-12-7
Fuse 7 (JB)............................8W-12-7
Fuse 8 (JB)............................8W-12-8
Fuse 9 (JB)............................8W-12-9
Fuse 10 (JB) ...........................8W-12-9
Fuse 11 (JB) ........................8W-12-6, 13
Fuse 12 (JB) ........................8W-12-6, 13
Fuse 13 (JB) ..........................8W-12-14
Fuse 14 (JB) ..........................8W-12-17
Fuse 15 (JB) ........................8W-12-6, 18
Fuse 16 (JB) ........................8W-12-6, 18
Fuse 17 (JB) ..........................8W-12-19
Fuse 18 (JB) ..........................8W-12-19
Fuse 19 (JB) ..........................8W-12-19
Fuse 20 (JB) ..........................8W-12-20
Fuse 21 (JB) ..........................8W-12-20
G300 ...............................8W-12-23
Glove Box Lamp .......................8W-12-16
Headlamp Delay Relay....................8W-12-6
Headlamp Dimmer Switch ............8W-12-6, 13, 18
Headlamp Switch ..............8W-12-6, 9, 10, 11, 18
High Note Horn.........................8W-12-8
High Speed Radiator Fan Relay.............8W-12-20
High/Low Wiper Relay ....................8W-12-9
Horn Relay............................8W-12-8
Ignition Switch ........................8W-12-25
In-Car Temperature Sensor/Aspirator Motor . . . .8W-12-16
Instrument Cluster ............8W-12-9, 13, 19, 24, 25
Component Page
Intermittent Wiper Relay ..................8W-12-9
Intermittent Wiper Switch .................8W-12-9
Key-In Halo Lamp ......................8W-12-14
Left Front Door Courtesy Lamp.............8W-12-15
Left Front Power Door Lock Motor ........8W-12-22, 23
Left Front Power Door Lock Switch .......8W-12-15, 17
Left Front Power Window Switch............8W-12-20
Left Headlamp ......................8W-12-13, 18
Left License Lamp ......................8W-12-12
Left Position Lamp ...................8W-12-10, 11
Left Power Mirror .......................8W-12-5
Left Rear Door Courtesy Lamp .............8W-12-15
Left Rear Power Door Lock Motor.........8W-12-22, 23
Left Rear Reading/Courtesy Lamp ...........8W-12-14
Left Tail Lamp ........................8W-12-12
Left Tail/Stop Lamp ..................8W-12-10, 12
Left Turn Signal Lamp ...................8W-12-24
Left Visor/Vanity Lamp...................8W-12-14
License Lamp 1 ........................8W-12-10
License Lamp 2 ........................8W-12-10
Low Note Horn .........................8W-12-8
Low Speed Radiator Fan Relay .............8W-12-20
Manifold Tuning Valve Solenoid.............8W-12-20
Message Center .....................8W-12-14, 17
Overhead Console ......................8W-12-17
Overhead Map/Courtesy Lamp .............8W-12-14
Park Brake Switch......................8W-12-25
Passenger Power Seat Switch ..............8W-12-21
Power Amplifier ........................8W-12-8
Power Antenna ........................8W-12-21
Power Mirror Switch..................8W-12-15, 17
Powertrain Control Module ................8W-12-19
Radio ........................8W-12-5, 10, 11, 14
Rear Window Defogger ....................8W-12-5
Rear Window Defogger Antenna Module........8W-12-5
Remote Keyless Entry Module ......8W-12-16, 17, 22, 23
Right Front Door Courtesy Lamp............8W-12-16
Right Front Power Door Lock Motor .......8W-12-22, 23
Right Front Power Door Lock Switch ......8W-12-16, 17
Right Headlamp .....................8W-12-13, 18
Right License Lamp .....................8W-12-12
Right Position Lamp ..................8W-12-10, 11
Right Power Mirror ......................8W-12-5
Right Rear Door Courtesy Lamp ............8W-12-15
Right Rear Power Door Lock Motor........8W-12-22, 23
Right Rear Reading/Courtesy Lamp ..........8W-12-14
Right Tail Lamp .......................8W-12-12
Right Tail/Stop Lamp .................8W-12-10, 12
Right Turn Signal Lamp ..................8W-12-24
Right Visor/Vanity Lamp..................8W-12-14
Speed Proportional Steering Module ..........8W-12-7
Stop Lamp Switch .......................8W-12-5
Sun Sensor ...........................8W-12-16
Sunroof Control Module................8W-12-17, 21
Transmission Control Module ..............8W-12-19
Transmission Range Switch ..............8W-12-7, 24
Trunk Lamp ..........................8W-12-14
Trunk Release Switch....................8W-12-16
Turn Signal/Hazard Warning Switch .........8W-12-24
Underhood Lamp.......................8W-12-14
Page 32
8W - 12 - 2 8W-12 JUNCTION BLOCK
FRONT OF
JUNCTION BLOCK
LH
HORN
RELAY RELAY
DOOR LOCK
DOOR UNLOCK
RELAY
C9
C10
C1
HEADLAMP
DELAY
RELAY
978W-11 LH001202
C2
Page 33
LH
8W-12 JUNCTION BLOCK 8W - 12 - 3
BACK OF
JUNCTION BLOCK
C5
C8
C4
C7
C6
C3
LH001203 978W-11
Page 34
8W - 12 - 4 8W-12 JUNCTION BLOCK
FUSES
LH
FUSE #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
AMPS FUSED CIRCUT
5A
10A
10A
20A
5A
10A
10A
20A
15A
10A
15A
15A
10A
5A
15A
15A
5A
10A
10A
10A
25A
CB 20A
CB 20A
-
C16 LB/YL
X12 RD/WT
L5 BK
F32 PK/DB
F37 RD/LG
F20 WT
F23 DB/YL
F30 RD
F33 PK/RD
L33 RD/OR L3 RD/OR
L34 RD/OR
M1 PK
G5 DB/WT A21 DB
L43 VT L4 VT/WT
L44 VT/RD
l48 VT/PK
F11 RD/WT
F18 LG/BK
C1 DG
F21 DG/RD
F35 RD A3 RD/WT
--
FEED CIRCUT
C15 BK/WT
A31 BK/WT
A31 BK/WT
A7 RD/WT
A3 RD/WT
A22 BK/OR
A22 BK/OR
A13 PK/WT
A13 PK/WT
A31 BK/WTF13 DB
L3 RD/OR
A7 RD/BK
L4 VT/WT
A81 RD/WT
A21 DBF12 DB/WT
A21 DBF14 LG/YL
A21 DB
A22 BK/OR
A22 BK/OR
978W-11 LH001204
Page 35
LH
8W-12 JUNCTION BLOCK 8W - 12 - 5
C15
12
BK/WT
1
C8
FUSE
1
5A
BATT A4 BATT A4
(8W-10-11) (8W-10-11)
HEATER
CONTROL
(8W-48-2)
1
C2
C15
12
BK/WT
MANUAL A/C ATC
RUN-ACC A31
FUSE
2
10A
(8W-10-6)
BATT A7
FUSE
3
10A
2
C2
C15
12
BK/WT
FUSE
4
20A
(8W-10-9)
JUNCTION
BLOCK
(8W-12-2)
AUTOMATICA/C
TEMPERATURE
CONTROL
MODULE
(8W-48-3)
C15
12
BK/WT
1
C15
12
BK/WT
S205
C211
1 7
C16
22
LB/YL
9
C16
22
LB/YL
C10
C300
C16
22
LB/YL
9
C16
22
LB/YL
3
C4
C257
RIGHT
POWER
MIRROR
(8W-62-2)
3
LEFT
POWER
MIRROR
(8W-62-2)
8
C5 C4
X12
22
RD/WT
6
C2
IGN.
ACC)
RADIO
(8W-47-2)
FUSED
(RUN-
3
L5
22
BK
1
FUSED
IGN.
(RUN-
ACC)
4
C4
F32
18
PK/DB
6
STOP
LAMP
SWITCH
(8W-33-3)
COMBINATION
FLASHER
(8W-52-2)
REAR
WINDOW
ANTENNA OTHERS
C15
12
BK/WT
C15
12
BK/WT
2
C15
12
BK/WT
REAR
WINDOW
DEFOGGER
ANTENNA
MODULE
(8W-48-2)
(8W-48-3)
REAR
WINDOW
DEFOGGER
(8W-48-2)
(8W-48-3)
LH001205 978W-11
Page 36
8W - 12 - 6 8W-12 JUNCTION BLOCK
LH
BATT A3
22 25
6
G50
22
RD/DB
2
HEADLAMP
DELAY
RELAY
CONTROL OUTPUT
C6
(8W-10-9)
2321
2
F37
22
RD/LG
3
FUSED
HEADLAMP
SWITCH
HEADLAMP
DELAY
RELAY
FUSE
5
5A
C4 C7
1
L2
14
LG
C3C2
BODY
CONTROL
MODULE
(8W-45-4)
L2
14
LG
S201
4
C7
A3
14
RD/WT
A3
14
RD/WT
JUNCTION
BLOCK
(8W-12-2)
(8W-12-3)
S203
A3
14
RD/WT
6
L2
14
LG
7
C1 C1
HEADLAMP
SWITCH
OUTPUT
7
FUSED
B(+)
HEADLAMP
SWITCH
(8W-50-2)
6
HEADLAMP
DIMMER
1
2
3
SWITCH
1 LOW
2 HIGH
3 FLASH TO PASS
5 4
L4
14
VT/WT
4
FUSE
15
15A
(8W-12-18) (8W-12-18) (8W-12-13) (8W-12-13)
FUSE
16
15A
FUSE
11
15A
L3
14
RD/OR
2
(PART OF
MULTI-FUNCTION
SWITCH)
C8C8
FUSE
12
15A
JUNCTION
BLOCK
(8W-12-2)
978W-11 LH001206
Page 37
LH
8W-12 JUNCTION BLOCK 8W - 12 - 7
RUN A22
FUSE
6
10A
8
C1
F20
20
WT
(8W-10-10)
F20
22
WT
5
FUSED
IGN.
(RUN)
C1
A/C
HEATER
CONTROL
(8W-42-2)
8
F20
22
WT
C6
ATCMANUAL A/C
F20
22
WT
9
F23
18
DB/YL
2
FUSED
IGN.
(RUN)
JUNCTION
BLOCK
(8W-12-2)
FUSE
7
10A
C6
C1
AIRBAG
CONTROL
MODULE
(8W-43-2)
SPEED
OTHERS STEERING
F20
20
WT
PROPORTIONAL
11
C139
F20
20
WT
1
F20
20
WT
F20
20
WT
TRANSMISSION
RANGE
SWITCH
(8W-31-5)
5
C1
FUSED
IGN.
(RUN)
F20 F20
20
WT
5
1
FUSED
(RUN)
SPEED
IGN.
PROPORTIONAL
STEERING
MODULE
(8W-65-2)
AUTOMATIC
TEMPERATURE
CONTROL
MODULE
(8W-42-4)
20
WT
ABS
MAIN
RELAY
(8W-35-2)
F20
20
WT
33
FUSED
IGN.
(RUN)
S114
CONTROLLER
ANTI-LOCK
BRAKE
(8W-35-2)
LH001207 978W-11
Page 38
8W - 12 - 8 8W-12 JUNCTION BLOCK
LH
BATT A13
FUSE
8
20A
8
C4
(8W-10-8)
12
4
C5
RKE OTHERS
X3
22
BK/RD
X3
20
BK/RD
1311
15
3
X2
18
DG/RD
JUNCTION
BLOCK
(8W-12-2)
HORN
RELAY
C2
F30
14
RD
F30
18
RD
CIGAR
LIGHTER
(8W-41-2) (8W-47-3)
TO
CLOCKSPRINGS200
S215
F30
12
RD
1
C254
F30
14
RD
F30
16
RD
1
C2 C2
FUSED
B(+)
(8W-41-2)(8W-41-2)
12
FUSED
TO
S324
F30
16
RD
B(+)
X2
18
DG/RD
A
POWER
AMPLIFIER
S131
X2
18
DG/RD
A
HIGH
NOTE
LOW
NOTE
HORN HORN
(8W-41-2) (8W-41-2)
978W-11 LH001208
Page 39
LH
8W-12 JUNCTION BLOCK 8W - 12 - 9
BATT A13
FUSE
9
15A
1
C4
F33
18
PK/RD
(8W-10-8)
RUN-ACC A31
FUSE
10
10A
4
C3
F13
22
DB
(8W-10-6)
10A
5
JUNCTION
BLOCK
(8W-12-2)
C2
F13
20
DB
HIGH/
LOW
WIPER
RELAY
(IN PDC)
(8W-53-3)
S206
F33
18
PK/RD
4
C1
F33
20
PK/RD
8
C2
FUSED
INSTRUMENT
B(+)
CLUSTER
(8W-40-2)
HEADLAMP
SWITCH
(8W-50-2)
3
INTERMITTENT
WIPER
SWITCH
(8W-53-2)
F13
20
DB
6A
INTERMITTENT
WIPER
RELAY
(IN PDC)
(8W-53-3)
LH001209 978W-11
Page 40
8W - 12 - 10 8W-12 JUNCTION BLOCK
CHRYSLER
BATT F33
1
5
C1
L7
20
BK/YL
5
C3
4
C2
L7
20
BK/YL
02
(8W-12-9)
HEADLAMP
SWITCH
1 HEAD
3
2 PARK
0 OFF
3 AUTO
(8W-50-2)
10
C3
L7
20
BK/YL
4
C2
RADIO
(8W-47-2)
S121
6
L7
20
BK/YL
L7
20
BK/YL
7
L7
20
BK/YL
JUNCTION
BLOCK
(8W-12-3)
C9
C315
L7
20
BK/YL
A
FUSE
2 (BUX)
5A
L7
20
BK/YL
A
S312
FUSE
3 (BUX)
5A
LH
BUX
FUSE
HOLDER
L7
18
L7
18
BK/YL
7
C182
L7
18
BK/YL
1
BK/YL
7
L7
18
BK/YL
1
C181
LEFT
POSITION
LAMP
(8W-50-6)
RIGHT
POSITION
LAMP
(8W-50-6)
1
C420
L7
20
BK/YL
B
L77
20
BR/YL
4
C312
L77
18
BR/YL
2 2
LEFT RIGHT
TAIL/
STOP
LAMP
(8W-51-2) (8W-51-2)
L7
20
BK/YL
2 2
LICENSE LICENSE
LAMP 1
(8W-51-4) (8W-51-4)
B
L78
20
DG/YL
4
L78
18
DG/YL
L7
20
BK/YL
C315
TAIL/
STOP
LAMP
S406
LAMP 2
978W-11 LH001210
Page 41
LH
8W-12 JUNCTION BLOCK
EAGLE
8W - 12 - 11
BATT F33
1
02
5
C1
L7
20
BK/YL
5
C3
4
C2
L7
20
BK/YL
(8W-12-9)
HEADLAMP
SWITCH
1 HEAD
3
2 PARK
0 OFF
3 AUTO
(8W-50-2)
10
BK/YL
L7
20
C3
6
L7
20
BK/YL
JUNCTION
BLOCK
(8W-12-3)
C9
L7
18
BK/YL
7
C182
L7
18
BK/YL
1
LEFT
POSITION
LAMP LAMP
(8W-50-6) (8W-50-6)
4
C2
RADIO
(8W-47-2)
A
TO
S312
(8W-12-12)
S121
L7
18
BK/YL
7
C181
L7
18
BK/YL
1
RIGHT
POSITION
LH001213 978W-11
Page 42
8W - 12 - 12 8W-12 JUNCTION BLOCK
EAGLE
FROM
JUNCTION
BLOCK
(8W-12-11)
A
L7
20
BK/YL
LH
S312
L7
20
BK/YL
L7
20
BK/YL
A
B
L77
20
BR/YL
4
L78
20
DG/YL
L78
20
DG/YL
FUSE
2 (BUX)
5A
C312
L78
18
DG/YL
S403
L7
20
BK/YL
A
B
L78
20
DG/YL
4
L78
18
DG/YL
FUSE
3 (BUX)
5A
C315
BUX
FUSE
HOLDER
2
LEFT
3
L7
20
BK/YL
C316
L7
20
BK/YL
1
1
LEFT
TAIL
LAMP
(8W-51-5)
RIGHT
LICENSE
1
LEFT
LAMP
(8W-51-7)
LICENSE
LAMP
(8W-51-7)
978W-11 LH001212
TAIL/
STOP
LAMP
(8W-51-5)
L78
20
DG/YL
1
RIGHT
TAIL
LAMP
(8W-51-5)
S404
L78
18
DG/YL
2
RIGHT
TAIL/
STOP
LAMP
(8W-51-5)
Page 43
LH
8W-12 JUNCTION BLOCK 8W - 12 - 13
BATT A3
3
4
L3
14
RD/OR
2
10
(8W-10-9)
C8
FUSE
11
15A
C1
HEADLAMP
DIMMER
SWITCH
3 FLASH TO PASS
(8W-50-4)
11
JUNCTION
BLOCK
(8W-12-2)
FUSE
12
15A
C1
L33
18
RD
1
C182
L34
18
RD
1
LEFT
HEADLAMP
(8W-50-6) (8W-50-6) (8W-40-8)
L34
20
RD/OR
L34
18
RD/OR
1
C181
L34
18
RD
1
S115
G34
20
RD/GY
6
C110
G34
20
RD/OR
8
C1
RIGHT INSTRUMENT
HEADLAMP
HIGH
BEAM
INDICATOR
LAMP
CLUSTER
LH001214 978W-11
Page 44
8W - 12 - 14 8W-12 JUNCTION BLOCK
LH
BATT A7
FUSE
13
10A
6
C3
M1
22
PK
(8W-10-9)
8
2
C9
M1
20
PK
2
M1
20
PK
TRUNK
LAMP
(8W-44-3) (8W-44-4)
C2
UNDERHOOD
LAMP
7
C9
M1 M1
22
PK
B
TO
2
S301 S225
(8W-12-15)
(8W-12-16)
S207
JUNCTION
BLOCK
(8W-12-2)
C6
22
PK
C
TO
M1
22
PK
4
C239
M1
22
PK
M1
22
PK
16
DATA LINK
CONNECTOR
(8W-30-14)
M1
22
PK
7 7
MESSAGE RADIO KEY-IN
CENTER
(8W-46-2)
M1
22
PK
C2
(8W-47-2)
M1
20
PK
1
HALO
LAMP
(8W-44-3)
S322
M1
20
PK
111 11
LEFT
REAR
READING/
COURTESY
LAMP
(8W-44-6)
M1
20
PK
LEFT
VISOR/
VANITY
LAMP
(8W-44-2) (8W-44-2) (8W-44-2)
M1
22
PK
M1
20
PK
OVERHEAD RIGHT RIGHT
MAP/
COURTESY
LAMP
VISOR/
VANITY
LAMP
M1
20
PK
REAR
READING/
COURTESY
LAMP
(8W-44-6)
978W-11 LH001215
Page 45
LH
8W-12 JUNCTION BLOCK 8W - 12 - 15
FROM
JUNCTION
BLOCK
(8W-12-14)
B
M1
22
PK
S301
11
72 4
M1
22
PKPK
C300
M1
22
PK
M1
22
PK
M1
22
PK
POWER
MIRROR
SWITCH
(8W-62-2)
M1
22
7
C307
M1
20
PK
2 2
LEFT RIGHT
REAR
DOOR
COURTESY
LAMP
(8W-44-5) (8W-44-5)
M1
20
PK
LEFT
FRONT
DOOR
COURTESY
M1
20
PK
7
C311
M1
20
PK
POWER
REAR
DOOR LOCKS OTHERS
DOOR
COURTESY
LAMP
M1
22
PK
S315
M1
22
PK
M1
22
PK
LEFT
FRONT
POWER
DOOR
LAMP LOCK
(8W-44-5)
LH001216 978W-11
SWITCH
(8W-61-2)
Page 46
8W - 12 - 16 8W-12 JUNCTION BLOCK
LH
FROM
JUNCTION
BLOCK
(8W-12-14)
C
M1
22
PK
M1
22
PK
19
C3
BODY
CONTROL
MODULE
(8W-45-2)
IN-CAR TRUNK
TEMPERATURE
SENSOR/
ASPIRATOR
M1
22
PK
MOTOR
(8W-42-5)
2
1
RELEASE
SWITCH
(8W-61-5)
M1
20
PK
S225
M1
22
PK
8
C2
REMOTE
KEYLESS
ENTRY
MODULE
(8W-61-3)
M1
22
PK PK
11
C257
M1
22
PK
M1
20
1
GLOVE
BOX
LAMP
(8W-44-5)
M1
20
PK
RIGHT
FRONT
DOOR
COURTESY
LAMP
(8W-44-5)
978W-11 LH001217
COURTESY
LAMPS OTHERS
M1
22
PK
S317
M1
22
PK
42
M1
22
PK
M1
22
PK
RIGHT
FRONT
POWER
DOOR
LOCK
SWITCH
(8W-61-2)
Page 47
LH
8W-12 JUNCTION BLOCK 8W - 12 - 17
ST-RUN A21
FUSE
14
5A
7
C10
G5
22
DB/WT
6
C300
G5
22
DB/WT
(8W-10-6)
1
C5
G5
22
DB/WT
G5
22
DB/WT
6
C239
G5
22
DB/WT
JUNCTION
BLOCK
(8W-12-2)
4
G5
22
DB/WT
G5
22
DB/WT
13
C3
FUSED
IGN.
(ST-RUN)
MESSAGE
CENTER
(8W-46-2)
BODY
CONTROL
MODULE
(8W-45-2)
3
G5
22
DB/WT
6
C257
G5
22
DB/WT
S220
G5
22
DB/WT
2
C1
FUSED
IGN.
(ST-RUN)
S319
RIGHT
FRONT
POWER
DOOR
LOCK
SWITCH
(8W-61-2)
REMOTE
KEYLESS
ENTRY
MODULE
(8W-61-5)
G5
22
DB/WT
DOOR
LOCKSOTHERS
G5
22
DB/WT
G5
22
DB/WT
G5
22
DB/WT
63
POWER
MIRROR
SWITCH
(8W-62-2)
G5
22
DB/WT
1
FUSED
IGN.
(ST-RUN)
S314
G5
22
DB/WT
AUTOMATIC
DAY/
NIGHT
MIRROR
(8W-44-4)
LEFT
FRONT
POWER
DOOR
G5
22
DB/WT
2
FUSED
IGN.
(ST-RUN) (ST-RUN)
SUNROOF
CONTROL
MODULE
(8W-64-2)
G5
22
DB/WT
4
FUSED
IGN.
OVERHEAD
CONSOLE
(8W-49-2)
LOCK
SWITCH
LH001218 978W-11
(8W-61-2)
Page 48
8W - 12 - 18 8W-12 JUNCTION BLOCK
LH
6
7
1
5
L4
14
VT/WT
4
BATT A3
1
C1
L2
14
LG
S201
(8W-50-3)
L2
14
LG
2
C8
FUSE
15
15A
(8W-10-9)
HEADLAMP
SWITCH
1 HEAD
3
02
2 PARK
0 OFF
3 AUTO
(8W-50-2)
HEADLAMP
DIMMER
SWITCH
1 LOW
2 HIGH
(8W-50-4)
JUNCTION
BLOCK
(8W-12-2)
FUSE
16
15A
6
C2
L43
18
VT
2
C182
L44
18
VT
3
LEFT RIGHT
HEADLAMP
(8W-50-6) (8W-50-6)
978W-11 LH001219
3
L44
18
VT/RD
2
L44
18
VT
3
C1
C181
HEADLAMP
Page 49
LH
8W-12 JUNCTION BLOCK 8W - 12 - 19
ST-RUN-OFF A81
FUSE
17
5A
10
C6
F11
22
RD/WT
(8W-10-6)
9
C1
F11
20
RD/WT
11
FUSED
IGN.
(ST-RUN-OFF)
ST-RUN A21
TRANSMISSION
CONTROL
MODULE
(8W-31-2)
7
C2
F12
20
DB/WT
FUSE
18
10A
(8W-10-6)
FUSE
19
10A
1
C6
F14
18
LG/YL
1
C1
FUSED
IGN.
(ST-RUN)
S120
JUNCTION
BLOCK
(8W-12-2)
AIRBAG
CONTROL
MODULE
(8W-43-2)
F11
22
RD/WT
6
C2 C3
FUSED
IGN.
(ST-RUN-OFF)
INSTRUMENT
CLUSTER
(8W-40-2)
F12
20
DB/WT
20
C1
FUSED
IGN.
(ST-RUN)
F11
22
RD/WT
22
FUSED
IGN.
(ST-RUN-OFF)
POWERTRAIN
CONTROL
MODULE
(8W-30-2)
BODY
CONTROL
MODULE
(8W-45-2)
F12
DB/WT
5A
F11
RD/WT
8
F11
RD/WT
1
20
FUEL
PUMP
RELAY
(IN PDC)
(8W-30-3)
S213
22
C212
20
AUTOSTICK
SWITCH
(EAGLE)
(8W-31-8)
LH001220 978W-11
Page 50
8W - 12 - 20 8W-12 JUNCTION BLOCK
LH
ST-RUN A21
FUSE
20
10A
7
C1
F18
20
LG/BK
(8W-10-6)
RUN A22
2
C1
12
DG
ATC MANUAL A/C
C1
12
DG
1
FUSED
IGN.
(RUN)
POWER
MODULE
(8W-42-5)
(8W-10-10)
FUSE
21
25A
C7
DG
4
C1
12
BLOWERATC
MOTOR
RESISTOR
BLOCK
(8W-42-2)
4
F21
14
DG/RD
1
F21
14
DG/RD
5
JUNCTION
BLOCK
(8W-12-2)
CIRCUIT
BREAKER
22
20A
C9
C300
LEFT
FRONT
POWER
WINDOW
SWITCH
(8W-60-2)
(8W-60-3)
S124
F18
20
LG/BK
F18
20
LG/BK
2A
F18
20
LG/BK
LOW
SPEED
RADIATOR
F18
20
LG/BK
10
F18
20
LG/BK
2
C142
EGR
SOLENOID
(8W-30-13)
F18
20
LG/BK
F18
20
LG/BK
FAN
RELAY
(IN PDC)
(8W-42-8)
1A
HIGH
SPEED
RADIATOR
FAN
RELAY
(IN PDC)
(8W-42-8)
978W-11 LH001221
3A
A/C
COMPRESSOR
CLUTCH
RELAY
(IN PDC)
(8W-42-7)
1
1
DUTY
CYCLE
EVAP/
PURGE
SOLENOID
(8W-30-13) (8W-30-13)
MANIFOLD
TUNING
VALVE
SOLENOID
(3.5L)
Page 51
LH
8W-12 JUNCTION BLOCK 8W - 12 - 21
5
F35
1
F35
BATT A3
16
RD
C302
16
RD
(8W-10-9)
CIRCUIT
BREAKER
23
20A
DRIVER PASSENGER
POWER
SEAT
SWITCH
(8W-63-2) (8W-63-3)
5
1
F35
16
RD
F35
16
RD
10
C303
POWER
SEAT
SWITCH
DOOR
LOCK
RELAY RELAY
(8W-61-3) (8W-61-3)
5
2
POWER
SEATS OTHERS
F35
16
RD
S306
F35
16
RD
6
POWER
ANTENNA OTHERS
DOOR
UNLOCK
C9
F35
16
RD
F35
16
RD
F35
16
RD
C212
F35
16
RD
JUNCTION
BLOCK
(8W-12-2)
F35
16
RD
F35
S211
F35
16
RD
9
F35
16
RD
1
2
1
F35
16
RD
C254
F35
16
RD
POWER
ANTENNA
(8W-47-6)
LH001222 978W-11
16
RD
C239
SUNROOF
CONTROL
MODULE
(8W-64-2)
Page 52
8W - 12 - 22 8W-12 JUNCTION BLOCK
DOOR
LOCK
RELAY
(8W-61-3)
86
LH
JUNCTION
BLOCK
(8W-12-2)
9
C5
P38
22
OR/WT
OTHERSRKE
P38
22
OR/WT
TO
5
OR/BK
8
OR/BK
2
P38
22
OR/WT
REMOTE
KEYLESS
ENTRY
MODULE
(8W-61-3)
P38
22
OR/WT
C9
P33
16
C300 C257
P33
16
6
P33
16
OR/BK
2
P33
16
OR/BK
2
LEFT
FRONT
POWER
DOOR
LOCK
MOTOR
(8W-61-3) (8W-61-3)
C5
RIGHT
FRONT
POWER
DOOR
LOCK
MOTOR
10
P33
16
OR/BK
P33
16
OR/BK
3
P33
16
OR/BK
2
C9
S303
P33
16
OR/BK
C307
3
P33
16
OR/BK
2
C311
LEFT
REAR
POWER
DOOR
LOCK
MOTOR
(8W-61-4) (8W-61-4)
RIGHT
REAR
POWER
DOOR
LOCK
MOTOR
P38
22
OR/WT
TO
BODY
CONTROL
MODULE
978W-11 LH001223
(8W-45-8)
Page 53
LH
8W-12 JUNCTION BLOCK 8W - 12 - 23
JUNCTION
24 79
31
DOOR
UNLOCK
RELAY
(8W-61-3)
DOOR
LOCK
RELAY
(8W-61-3)
BLOCK
(8W-12-2)
3
C10
Z1
16
BK
7
P36
22
PK/VT
C5
S304
(8W-15-9)
Z1
14
BK
G300
(8W-15-9)
3
P34
16
PK/BK
8
P34
16
PK/BK
1
C5
C257
RIGHT
FRONT
POWER
DOOR
LOCK
MOTOR
(8W-61-3)
8
C10
P34
16
PK/BK
P34
16
PK/BK
5 5
C307
P34
16
PK/BK
1
LEFT
REAR
POWER
DOOR
LOCK
MOTOR
(8W-61-4) (8W-61-4)
S300
P34
16
PK/BK
C311
P34
16
PK/BK
1
RIGHT
REAR
POWER
DOOR
LOCK
MOTOR
RKE OTHERS
P36
22
PK/VT
S226
(8W-61-3)
P36
22
PK/VT
TOTO
BODY
CONTROL
MODULE
(8W-45-8)
LH001224 978W-11
Page 54
8W - 12 - 24 8W-12 JUNCTION BLOCK
LH
1
A141
16
DG/BK
FUEL
PUMP
MODULE
(8W-30-3) (8W-31-5)
3
1
FUEL
PUMP
RELAY
TURN
SIGNAL/
HAZARD
WARNING
SWITCH
(8W-52-2)
(IN PDC)
1
2
L61
18
LG
C3
3
C309 C139
A141
16
DG/BK
3
C9
21
5D
DG/BK
12
C10
(8W-30-3)
A141
16
C2
C2 C3
7
L60
18
TN
C3
C3
6
L1
20
VT/BK
10
L1
20
VT/BK
4
98
TRANSMISSION
RANGE
SWITCH
S309
(8W-70-12)
VT/BK
C1
1
9
TO
L1
20
C9
JUNCTION
BLOCK
(8W-12-3)
C2C9
L61
16
LG
2
C312
L61
18
LG/TN
EAGLE CHRYSLER
L60
18
TN
2
L60
18
LG/TN
LEFT
TURN
SIGNAL SIGNAL
LAMP
(8W-52-3) (8W-52-4)
L61
18
LG
TO
S159
2
L60
16
TN
L60
18
TN
C315
TO
S158
(8W-52-4)(8W-52-3)
5
L60
18
TN
C2
L61
18
LG
4
C1
INSTRUMENT
CLUSTER
(8W-40-8)
L60
18
LG/TN
2
RIGHT
TURN
LAMP
978W-11 LH001225
Page 55
LH
8W-12 JUNCTION BLOCK 8W - 12 - 25
JUNCTION
BLOCK
(8W-12-3)
C10 C4
20
GY/BK
PARK
BRAKE
SWITCH
(8W-40-6)
G9
20
GY/BK
114
C2
20
GY/BK
ABS AND/OR DRL OTHER
G9
20
GY/BK
S108
G9
20
GY/BK
G9
20
GY/BK
1
6
G9G9G9
22
GY/BK
BRAKE
FLUID
LEVEL
SWITCH
NO. 1
(8W-40-6)
S202
G9
22
GY/BK
18
CONTROLLER
ANTI-LOCK
BRAKE
(8W-35-5)
1
IGNITION
SWITCH
(8W-10-5)
G9
22
GY/BK
69
C1
INSTRUMENT
CLUSTER
(8W-40-6)
BRAKE
FLUID
LEVEL
SWITCH
NO. 1
(8W-40-6)
LH001226 978W-11
Page 56
8W - 12 - 26 8W - 12 JUNCTION BLOCK LH
8W-12 JUNCTION BLOCK
INDEX
page
DESCRIPTION AND OPERATION
INTRODUCTION ......................... 26
DESCRIPTION AND OPERATION
INTRODUCTION
This section identifies the fuses, relays, modules,
and internal circuity of the junction block. For additional information on system operation, refer to the
appropriate group of the wiring diagrams.
Page 57
LH 8W - 15 GROUND DISTRIBUTION 8W-15-1
8W-15 GROUND DISTRIBUTION
INDEX
page
SCHEMATICS AND DIAGRAMS ........................................................... 1
DESCRIPTION AND OPERATION ......................................................... 12
Component Page
A/C Compressor Clutch ..................8W-15-4
A/C Heater Control ...................8W-15-7, 8
ABS Main Relay .......................8W-15-3
ABS Pump Motor ......................8W-15-3
Airbag Control Module...................8W-15-8
Ash Receiver Lamp .....................8W-15-7
Atc Power Module ......................8W-15-7
Automatic Day/Night Mirror ..............8W-15-8
Automatic Temperature Control Module . . . .8W-15-7, 8
Autostick Switch .......................8W-15-9
Battery ..............................8W-15-2
Body Control Module ..................8W-15-7, 8
Brake Fluid Level Switch No. 1 ............8W-15-3
Capacitor ............................8W-15-4
Center High Mounted Stop Lamp .......8W-15-10, 11
Cigar Lighter .........................8W-15-7
Combination Flasher ....................8W-15-7
Controller Anti-Lock Brake ...............8W-15-3
Data Link Connector ..................8W-15-6, 8
Door Lock Relay .......................8W-15-9
Door Unlock Relay......................8W-15-9
Driver Power Seat Switch ................8W-15-9
Fuel Pump Module .....................8W-15-9
G100................................8W-15-2
G101................................8W-15-2
G102................................8W-15-3
G103................................8W-15-2
G104................................8W-15-3
G105................................8W-15-4
G106................................8W-15-4
G107................................8W-15-4
G200................................8W-15-7
G201................................8W-15-8
G300................................8W-15-9
G301 ............................8W-15-10, 11
G302................................8W-15-8
G303................................8W-15-7
Glove Box Lamp .......................8W-15-6
Headlamp Switch ......................8W-15-6
High Note Horn........................8W-15-4
Ignition Coil Pack Helical Shield ...........8W-15-4
Ignition Switch ........................8W-15-6
Instrument Cluster ...................8W-15-6, 8
Intermittent Wiper Relay.................8W-15-3
Junction Block ........................8W-15-9
Left Back-Up Lamp ....................8W-15-11
Left Direction Lamp ....................8W-15-2
Left Downstream Heated Oxygen Sensor .....8W-15-4
Left Fog Lamp 1 ....................8W-15-2, 11
Left Fog Lamp 2 .......................8W-15-2
Left Front Power Door Lock Switch .........8W-15-9
Left Front Power Window Switch ...........8W-15-9
Left Headlamp ........................8W-15-2
Left License Lamp .....................8W-15-10
Left Position Lamp .....................8W-15-2
Component Page
Left Power Mirror ......................8W-15-9
Left Rear Fog Lamp....................8W-15-10
Left Rear Reading/Courtesy Lamp Switch.....8W-15-6
Left Repeater Lamp.....................8W-15-2
Left Tail Lamp .......................8W-15-10
Left Tail/Stop Lamp .................8W-15-10, 11
Left Turn Signal Lamp..................8W-15-10
Left Upstream Heated Oxygen Sensor .......8W-15-4
Left Visor/Vanity Lamp ..................8W-15-6
License Lamp 1 .......................8W-15-11
License Lamp 2 .......................8W-15-11
Low Note Horn ........................8W-15-4
Overhead Console ......................8W-15-8
Overhead Map/Courtesy Lamp.............8W-15-6
Passenger Power Seat Switch..............8W-15-9
Power Amplifier........................8W-15-8
Power Antenna ........................8W-15-8
Power Mirror Switch ....................8W-15-9
Powertrain Control Module ...............8W-15-3
Radiator Fan Motor Assembly .............8W-15-2
Rear Window Defogger ..................8W-15-7
Remote Keyless Entry Module .............8W-15-6
Right Back-Up Lamp ................8W-15-10, 11
Right Direction Lamp ...................8W-15-5
Right Downstream Heated Oxygen Sensor . . . .8W-15-4
Right Fog Lamp .......................8W-15-4
Right Fog Lamp 1 .....................8W-15-11
Right Fog Lamp 2 ......................8W-15-5
Right Front Power Door Lock Switch ........8W-15-7
Right Headlamp .......................8W-15-5
Right License Lamp....................8W-15-10
Right Position Lamp ....................8W-15-5
Right Power Mirror .....................8W-15-7
Right Rear Reading/Courtesy Lamp Switch . . .8W-15-6
Right Repeater Lamp ...................8W-15-4
Right Tail Lamp ......................8W-15-10
Right Tail/Stop Lamp ................8W-15-10, 11
Right Turn Signal Lamp..............8W-15-10, 11
Right Upstream Heated Oxygen Sensor ......8W-15-4
Right Visor/Vanity Lamp .................8W-15-6
Seat Belt Switch .......................8W-15-9
Speed Proportional Steering Module.........8W-15-3
Stop Lamp Switch ......................8W-15-8
Sunroof Control Module..................8W-15-6
Traction Control Switch..................8W-15-6
Transmission Control Module..............8W-15-2
Transmission Relay .....................8W-15-3
Trunk Release Solenoid...............8W-15-10, 11
Turn Signal/Hazard Warning Switch ........8W-15-7
Vehicle Speed Control Servo...............8W-15-3
Vehicle Speed Control/Horn Switch..........8W-15-8
Washer Fluid Level Sensor................8W-15-2
Windshield Washer Pump Motor ...........8W-15-2
Windshield Wiper Motor .................8W-15-3
Page 58
8W - 15 - 2 8W-15 GROUND DISTRIBUTION
BATTERY
(8W-20-2)
57 53
LH
TRANSMISSION
CONTROL
MODULE
(8W-31-2)
Z0
6
BK
G100 G101
LEFT
FOG
LAMP 2
2
Z1 Z1
18
BK
Z1
18
BK
3
C182
1
Z0
10
BK
LEFT
POSITION
LAMP
(8W-50-6)(8W-50-7) (8W-50-5)
2 1
18
BK
LEFT
REPEATER
LAMP
(8W-50-5)
2
RADIATOR
FAN
(8W-52-3)
Z1
20
BK
MOTOR
ASSEMBLY
(8W-42-8)
2
C183
Z13 Z14
16
BK/RD
20
BK/YL
G103
Z1
18
BK
LEFT
DIRECTION
LAMP
(8W-52-3)
2
LEFT
HEADLAMP
(8W-50-6)
Z1
18
BK
S161
WINDSHIELD
WASHER
PUMP
MOTOR
A
LEFT
FOG
LAMP 1
(8W-51-4)
2
(8W-53-2)
B
WASHER
FLUID
LEVEL
SENSOR
(8W-53-2)
Z1
18
BK
Z1
12
BK
Z1
20
BK
Z1
20
BK
Z1
20
BK
Z1
18
BK
S119
Z1
12
BK
A
TO
G102
(8W-15-3)
978W-11 LH001502
Page 59
LH
8W-15 GROUND DISTRIBUTION 8W - 15 - 3
11 24
Z1
20
BK
12
Z1
20
BK
INTERMITTENT
WIPER
RELAY
(IN PDC) SWITCH
6E
(8W-53-3)
CONTROLLER
ANTI-LOCK
BRAKE
(8W-35-2) (8W-35-3) (8W-35-2)
1
Z1
20
BK
Z1
12
BK
ABS
PUMP
MOTOR
3
Z1
14
BK
BRAKE
FLUID
LEVEL
2
NO. 1
(8W-40-6)
ABS
MAIN
RELAY
S105
TRANSMISSION
RELAY
(IN PDC)
(8W-31-2)
9C
WINDSHIELD
WIPER
MOTOR
Z1
12
BK
4
(8W-53-3)
Z1
12
BK
FROM
S119
(8W-15-2)
A
Z1
14
BK
Z1
12
BK
Z1
20
BK
VEHICLE
SPEED
CONTROL
SPEED
PROPORTIONAL
STEERING
SERVO MODULE
4
(8W-33-3) (8W-65-2)
Z1
20
BK
Z1
12
BK
Z1
20
BK
2
Z1
20
BK
S110
POWERTRAIN
CONTROL
MODULE
(8W-30-2)
47
C2 C1C2
Z11
20
BK/WT
50
Z12
16
BK/TN
Z12
16
BK/TN
10
Z12
16
BK/TN
S133
G102
LH001503 978W-11
G104
Page 60
8W - 15 - 4 8W-15 GROUND DISTRIBUTION
LH
HIGH
NOTE
HORN
(8W-41-2)
B
2
LOW
NOTE
HORN
(8W-41-2)
B
Z1
18
BK
Z1
18
BK
Z1
20
BK
RIGHT
REPEATER
LAMP
(8W-50-5)
(8W-52-4)
2
Z1
18
BK
4
RIGHT
FOG
LAMP
NO. 1
(8W-50-7)
LEFT
DOWNSTREAM
HEATED
OXYGEN
SENSOR
(8W-30-9)
Z1
20
BK
Z1
20
BK
RIGHT
DOWNSTREAM
HEATED
OXYGEN
Z1
20
BK
SENSOR
(8W-30-9)
S152
FROM
4
S162
(8W-15-5)
C
IGNITION
COIL
PACK
HELICAL
SHIELD
(8W-30-4)
Z1
18
BK
12
Z1
18
BK
Z1
18
BK
C142
2
C184
3
C143
A/C
COMPRESSOR
Z1
18
BK
CLUTCH
Z1
20
BK
Z1
20
BK
(8W-42-7)
2
Z1
12
BK
3
C181
Z1
18
BK
S132
Z1
18
BK
IGNITION
COIL
PACK
HELICAL
SHIELD
(8W-30-4)
1
CAPACITOR
(8W-30-4)
LEFT
UPSTREAM
HEATED
OXYGEN
SENSOR
(8W-30-8)
RIGHT
UPSTREAM
HEATED
OXYGEN
SENSOR
(8W-30-8)
S144
Z1
20
BK
1
Z1
18
BK
G105
978W-11 LH001504
Z1
16
BK
G107
Z1
20
BK
G106
Page 61
LH
8W-15 GROUND DISTRIBUTION 8W - 15 - 5
Z1
18
BK
RIGHT
DIRECTION
LAMP
(8W-50-5)
(8W-52-4)
RIGHT
POSITION
LAMP
(8W-50-6)
2
Z1
18
BK
RIGHT
HEADLAMP
(8W-50-6)
2
1
RIGHT
FOG
LAMP 2
(8W-50-7)
2
Z1
18
BK
Z1
18
BK
S162
Z1
18
BK
C
TO
C181
(8W-15-4)
LH001505 978W-11
Page 62
8W - 15 - 6 8W-15 GROUND DISTRIBUTION
LH
LEFT
VISOR/
VANITY
LAMP
2
(8W-44-2)
3
LEFT
REAR
READING/
COURTESY
LAMP
SUNROOF
CONTROL
MODULE
(8W-64-2)
4
3
OVERHEAD
MAP/
COURTESY
LAMP
(8W-44-2)
SWITCH
(8W-44-6)
RIGHT
VISOR/
VANITY
LAMP
2
(8W-44-2)
3
RIGHT
REAR
READING/
COURTESY
LAMP
Z1
18
BK
OVERHEAD
CONSOLE OTHERS
Z1
22
BK
SWITCH
Z1
20
BK
Z1
20
BK
HEADLAMP
SWITCH
(8W-50-2)
(8W-50-3)
Z1
20
BK
(8W-44-6)
Z1
20
BK
INSTRUMENT
CLUSTER
(8W-40-2)
Z1
22
BK
Z1
18
BK
S318
Z1
22
BK
2 8
Z1
22
BK
Z1
22
BK
C2C2
1
Z1
22
BK
2
Z1
22
BK
TRACTION
CONTROL
SWITCH
(8W-35-3)
IGNITION
SWITCH
(8W-10-5)
3
Z1
22
BK
C1
REMOTE
KEYLESS
ENTRY
MODULE
Z1
22
BK
(8W-61-5)
C2
4
DATA LINK
CONNECTOR
(8W-30-14)
4
Z1
22
BK
2
C239
Z1
22
BK
S237
GLOVE
BOX
LAMP
(8W-44-5)
2
Z1
20
BK
Z1
20
BK
S236
Z1
20
BK
B
TO
G200
978W-11 LH001506
(8W-15-7)
Page 63
LH
8W-15 GROUND DISTRIBUTION 8W - 15 - 7
RIGHT
FRONT
POWER
DOOR
2
LOCK
SWITCH
(8W-61-2)
Z1
22
BK
CIGAR
LIGHTER
(8W-41-2)
Z1 Z1
20
BK
A/C
HEATER
CONTROL
(8W-42-2)
5
C2
21
RIGHT
POWER
MIRROR
(8W-62-2) (8W-62-2)
1
Z1
22
BK
1
RIGHT
POWER
MIRROR
Z1
22
BK
S316
ASH
RECEIVER
Z1
22
BK
LAMP
(8W-44-7)
1
20
BK
AUTOMATIC
TEMPERATURE
CONTROL
Z1
22
BK
OTHERSPOWER LOCKS
MODULE
C1
(8W-42-4)
2
ATC
POWER
MODULE
(8W-42-5)
14
3
C257
BODY
CONTROL
MODULE
(8W-45-2)
C3
Z1 Z1
12
BK
Z1
18
BK
Z1
20
BK
12
BK
Z1
20
BK
S217
REAR
Z1
20
BK
5
TURN
SIGNAL/
HAZARD
Z1
20
BK
5
COMBINATION
FLASHER
(8W-52-2)
WINDOW
DEFOGGER
(8W-48-2)
(8W-48-3)
Z1
12
BK
FROM
S236
(8W-15-6)
B
WARNING
SWITCH
(8W-52-2)
Z1
12
BK
Z1
12
BK
G303
LH001507 978W-11
Z1
20
BK
G200
Page 64
8W - 15 - 8 8W-15 GROUND DISTRIBUTION
LH
Z2
22
BK/LG
Z2
22
BK/LG
5
Z2
22
BK/LG
AUTOMATIC
DAY/
NIGHT
MIRROR
(8W-44-4)
C239
3
Z2
22
BK/LG
OVERHEAD
CONSOLE
(8W-49-2)
S320
14
Z2
22
BK/LG
BODY
CONTROL
MODULE
(8W-45-2)
C3
1
C2
Z2
22
BK/LG
INSTRUMENT
CLUSTER
(8W-40-2)
22
Z2
20
BK/LG
STOP
LAMP
SWITCH
(8W-33-3)
DATA LINK
CONNECTOR
(8W-30-14)
5
Z2
22
BK/LG
Z2
22
BK/LG
4
VEHICLE A/C
SPEED
CONTROL/
HORN
SWITCH
(8W-33-3)
10
C2
Z1
18
BK
Z2
22
BK/LG
4
C1 C1
POWER
AMPLIFIER
HEATER
CONTROL
(8W-42-2)
Z2
22
BK/LG
6
3
Z1
16
BK
AUTOMATIC
TEMPERATURE
CONTROL
MODULE
(8W-42-4)
POWER
ANTENNA
(8W-47-6)(8W-47-3)
11
Z2
18
BK/LG
S222
AIRBAG
CONTROL
MODULE
(8W-43-2)
C1
Z2
20
BK/LG
G302
978W-11 LH001508
G201
Page 65
LH
8W-15 GROUND DISTRIBUTION 8W - 15 - 9
2
Z1
22
BK
3
Z1
18
BK/TN
4
Z1
20
BK/TN
LEFT
FRONT
LEFT
POWER
POWER MIRROR
DOOR
LOCK
13
(8W-62-2) (8W-62-2)
SWITCH
(8W-61-2)
Z1
22
BK
FUEL
PUMP
(8W-30-3)
4
Z1
16
BK
1
C309
Z1
16
BK
1
Z1
16
BK
2
C302
Z1
16
BK
POWER
MIRROR
SWITCH
LEFT
FRONT
POWER
WINDOW
14
BK
1
2
SWITCH
(8W-60-2)
(8W-60-3)
Z1
PASSENGER
POWER
SEATMODULE
SWITCH
Z1
16
BK
C303
Z1
16
BK
8
Z1
22
BK
DRIVER
POWER
SEAT
SWITCH
(8W-63-2) (8W-63-3)
SEAT
BELT
SWITCH
(8W-40-9)
2
Z1
20
BK
14
S313
Z1
14
BK
C300
Z1
14
BK
S304
Z1
16
BK
3
C10
JUNCTION
Z1
20
BK
2
79
DOOR
LOCK
RELAY
(8W-61-3)
42
DOOR
UNLOCK
RELAY
(8W-61-3)
AUTOSTICK
SWITCH
(EAGLE)
(8W-31-8)
LH001509 978W-11
BLOCK
(8W-12-2)
Z1
14
BK
G300
Page 66
8W - 15 - 10 8W-15 GROUND DISTRIBUTION
EAGLE
LH
LEFT
TAIL
LAMP
(8W-51-5)
2
1
LEFT
TURN
SIGNAL
LAMP
1
Z1
20
BK
(8W-52-3)
Z1
18
BK
LEFT
LICENSE
LAMP
(8W-51-7) (8W-51-6)
2 1
RIGHT
LICENSE
LAMP
Z1
20
BK
Z1
20
BK
(8W-51-7)
2
Z1
18
BK
LEFT
TAIL/
STOP
LAMP
(8W-51-5)
S401
Z1
18
BK
RIGHT
TAIL/
STOP
LAMP
1
(8W-51-5)
Z1
18
BK
RIGHT
BACK-UP
LAMP
1
1
Z1
18
BK
LEFT
REAR
FOG
LAMP
(8W-51-6)
RIGHT
TAIL
LAMP
(8W-51-5)
2
RIGHT
TURN
SIGNAL
LAMP
(8W-52-4)
Z1
20
BK
S402
Z1
20
BK
Z1
20
BK
6
C312
Z1
20
BK
1
C316
Z1
20
BK
Z1
20
BK
Z1
18
BK
S408
C1
Z1
20
BK
C304
Z1
20
BK
CENTER
HIGH
MOUNTED
STOP
LAMP
(8W-51-8)
3
C315
Z1
20
BK
TRUNK
RELEASE
SOLENOID
(8W-61-5)
1
Z1
20
BK
1
3
S310
Z1
16
BK
G301
978W-11 LH001511
Page 67
LH
8W-15 GROUND DISTRIBUTION
CHRYSLER
8W - 15 - 11
LEFT
TAIL/
STOP
LAMP
Z1
18
BK
(8W-51-2)
2
1
RIGHT
TAIL/
STOP
LAMP
1
(8W-51-2)
Z1
20
BK
S401
LEFT
BACK-UP
LAMP
(8W-51-3)
LICENSE LEFT
LAMP 1
(8W-51-4)
1 2
LICENSE
LAMP 2
(8W-51-4)
1
Z1
20
BK
Z1
20
BK
Z1
20
BK
FOG
LAMP 1
(8W-51-4)
RIGHT
FOG
LAMP 1
(8W-51-4)
2
Z1
20
BK
S405
1
Z1
20
BK
C420
RIGHT
TURN
SIGNAL
LAMP
1
(8W-52-4)
2
RIGHT
BACK-UP
LAMP
(8W-51-3)
Z1
Z1
20
BK
18
BK
1
6
C312
Z1
20
BK
Z1
20
BK
TRUNK
RELEASE
SOLENOID
(8W-61-5)
Z1
18
BK
1
C1 C2
Z1
20
BK
1
Z1
20
BK
LHS
CENTER
HIGH
MOUNTED
STOP
LAMP
(8W-51-8)
3
C304
Z1
20
BK
Z1
20
BK
1
C1
Z1
20
BK
OTHERS
CENTER
HIGH
MOUNTED
STOP
LAMP
(8W-51-8)
Z1
20
BK
S402
Z1
20
BK
3
C315
Z1
20
BK
S310
Z1
16
BK
LH001512 978W-11
G301
Page 68
8W - 15 - 12 8W - 15 GROUND DISTRIBUTION LH
8W-15 GROUND DISTRIBUTION
INDEX
page
DESCRIPTION AND OPERATION
INTRODUCTION ......................... 12
DESCRIPTION AND OPERATION
INTRODUCTION
This section identifies the grounds, splices that
connect to those grounds, and the components that
connect those grounds. For additional information on
system operation, refer to the appropriate section of
the wiring diagrams. For an illustration of the physical location of each ground, refer to group 8W-90.
Page 69
LH 8W - 20 CHARGING SYSTEM 8W-20-1
8W-20 CHARGING SYSTEM
INDEX
page
SCHEMATICS AND DIAGRAMS ........................................................... 1
DESCRIPTION AND OPERATION .......................................................... 3
Component Page
Automatic Shut Down Relay .............8W-20-2
Battery .............................8W-20-2
Fuse B (PDC) ........................8W-20-2
Fusible Link .........................8W-20-2
G100 ...............................8W-20-2
G101 ...............................8W-20-2
Generator ...........................8W-20-2
Component Page
Power Distribution Center ..............8W-20-2
Powertrain Control Module..............8W-20-2
S106 ...............................8W-20-2
S109 ...............................8W-20-2
S116 ...............................8W-20-2
S129 ...............................8W-20-2
Page 70
8W - 20 - 2 8W-20 CHARGING SYSTEM
LH
FUSE
B
20A
(8W-10-7)
B
A14
16
RD/WT
4C 4D
4B4A
A142
16
DG/OR
S129
(8W-70-4)
(8W-70-5)
A142
16
DG/OR
POWER
DISTRIBUTION
CENTER
(8W-10-4)
S116
(8W-10-7)
AUTOMATIC
SHUT
DOWN
RELAY
(IN PDC)
A0
6
BK
A0
6
BK
BATTERY
Z0
10
BK
G101
A11
6
BK/GY
S106
FUSIBLE
LINK
S109
A11
6
BK/GY
Z0
6
BK
G100
K51
20
DB/YL
67
C2
AUTO
SHUT
DOWN
RELAY
CONTROL
2
1
K20
18
DG
4
C1
GENERATOR
FIELD
DRIVER
GENERATOR
POWERTRAIN
CONTROL
MODULE
(8W-30-2)
978W-11 LH002002
Page 71
LH 8W - 20 CHARGING SYSTEM 8W-20-3
8W-20 CHARGING SYSTEM
INDEX
page
DESCRIPTION AND OPERATION
CHARGING SYSTEM ...................... 3
DESCRIPTION AND OPERATION
CHARGING SYSTEM
The charging system is an integral part of the battery and starter systems. Since these systems work
together, any diagnosis and testing should be done in
conjunction.
The charging system is protected by a 12 gauge
fusible link located in the A11 circuit. The A11 circuit
is connected to the battery feed BUS bar of the
Power Distribution Center (PDC).
The generator is case-grounded through its attaching bracket. This generator uses a voltage regulator
internal to the Powertrain Control Module (PCM).
When the vehicle is running, battery voltage is
applied to the generator field terminal through the
A142 circuit, on all engine applications. This circuit
is controlled by the contact side of the Automatic
Shut Down (ASD) relay. The ground, or voltage regulated side, of the generator field is controlled by the
K20 circuit. Circuit K20 connects to cavity 4 of the
PCM.
When there is current present in the field, and the
rotor is turning, the stator in the generator produces
a B+ voltage that is supplied to the battery through
the A11 circuit. The A11 circuit is connected to the
output terminal of the generator and to the BUS bar
in the PDC.
Grounding for the system is accomplished at the
battery negative terminal. These grounds go to the
engine and body.
HELPFUL INFORMATION
• Inspect for a blown fusible link in the A11 cir-
cuit between the generator and the PDC.
• For additional information on charging system
diagnosis, refer to the appropriate group of the Service Manual.
Page 72
Page 73
LH 8W - 21 STARTING SYSTEM 8W-21-1
8W-21 STARTING SYSTEM
INDEX
page
SCHEMATICS AND DIAGRAMS ........................................................... 1
DESCRIPTION AND OPERATION .......................................................... 3
Component Page
Battery .............................8W-21-2
Engine Starter Motor ..................8W-21-2
Engine Starter Motor Relay .............8W-21-2
Fuse A (PDC).........................8W-21-2
Ignition Switch .......................8W-21-2
Power Distribution Center ..............8W-21-2
Component Page
Powertrain Control Module..............8W-21-2
S107 ...............................8W-21-2
S113 ...............................8W-21-2
S134 ...............................8W-21-2
Transmission Control Module ............8W-21-2
Transmission Range Switch .............8W-21-2
Page 74
8W - 21 - 2 8W-21 STARTING SYSTEM
LH
BATT A1
(8W-10-5)
IGNITION
SWITCH
1 START
2 RUN
14
3
2
0
0 OFF
3 LOCK
4 ACC
(8W-10-5)
8
A41
16
YL
40
C110
A41
16
YL
A41
16
YL
S113
(8W-10-6)
A
A1
12
RD
FUSE
A
20A
(8W-10-5)
POWER
DISTRIBUTION
CENTER
(8W-10-4)
S107
(8W-10-5)
A0
6
BK
A0
6
BK
BATTERY
(8W-20-2)
8
A41
16
YL
FUSED
IGN.
(ST)
8C 8D
T41
20
BK/LG
12
C139
T41
20
BK/LG
5
TRANSMISSION
PN
RANGE
SWITCH
(8W-31-5)
TRANSMISSION
CONTROL
MODULE
(8W-31-2)
S134
(8W-70-6)
T41
20
BK/LG
76
C2
PARK
NEUTRAL
SENSE
POWERTRAIN
CONTROL
MODULE
(8W-30-11)
3
8B8A
T40
16
LG
T40
16
LG
A1
16
RD
C101
12
A0
6
RD
ENGINE
STARTER
MOTOR
RELAY
(IN PDC)
ENGINE
STARTER
MOTOR
1 PULL-IN
2 HOLD-IN
M
978W-11 LH002102
Page 75
LH 8W - 21 STARTING SYSTEM 8W-21-3
8W-21 STARTING SYSTEM
INDEX
page
DESCRIPTION AND OPERATION
STARTERMOTOR ........................ 3
DESCRIPTION AND OPERATION
STARTER MOTOR
The Power Distribution Center (PDC) supplies battery voltage to the engine starter motor solenoid
through circuit T40 when the coil side of the engine
starter motor relay energizes. Circuit A1 contains a
20 amp fuse, and feeds the contact side of the engine
starter motor relay. Both the 20 amp fuse and the
engine starter motor relay are located in the PDC.
The ignition switch supplies battery voltage to the
coil side of the engine starter motor relay on circuit
A41 when the key is moved to the START position
and the PARK/NEUTRAL switch portion of the Manual Valve Lever Position Sensor (MVLPS) is
CLOSED. Circuit A41 also provides an ignition start
input to the Transmission Control Module (TCM).
Ground for the coil side of the engine starter motor
relay is supplied on the T41 circuit when the PARK/
NEUTRAL switch portion of the MVLPS is CLOSED.
The MVLPS is case grounded. The T41 circuit is also
an input to the Powertrain Control Module (PCM),
cavity 76, and the Transmission Control Module
(TCM), cavity 41. This input is used to indicate when
the vehicle is in the PARK or NEUTRAL position.
Circuit A0 (battery positive cable) supplies battery
voltage to the engine starter motor when the solenoid
energizes. Ground for the engine starter motor is
supplied through the starter motor case.
HELPFUL INFORMATION
• Check for blown engine starter motor fuse in
cavity A of the PDC.
• With the gear selector in the PARK or NEUTRAL position, move the ignition key to the START
position and listen for the starter motor relay to
click. The engine starter motor relay is located in the
PDC.
• Check for a good ground at the starter motor.
• The MVLPS is case-grounded and supplies the
ground for the coil side of the starter relay.
Page 76
Page 77
LH 8W - 30 FUEL/IGNITION SYSTEM 8W-30-1
8W-30 FUEL/IGNITION SYSTEM
INDEX
page
SCHEMATICS AND DIAGRAMS ........................................................... 1
DESCRIPTION AND OPERATION ......................................................... 16
Component Page
A/C Compressor Clutch Relay............8W-30-12
A/C Pressure Transducer ...............8W-30-10
Airbag Control Module .................8W-30-15
Automatic Shut Down Relay ......8W-30-2, 4, 5, 8, 9
Automatic Temperature Control Module. . . .8W-30-15
Body Control Module ................8W-30-3, 15
Camshaft Position Sensor................8W-30-6
Capacitor ............................8W-30-4
Clockspring .........................8W-30-11
Controller Anti-Lock Brake..............8W-30-15
Crankshaft Position Sensor ..............8W-30-6
Data Link Connector ...............8W-30-14, 15
Duty Cycle Evap/Purge Solenoid..........8W-30-13
EGR Solenoid........................8W-30-13
Engine Coolant Temperature Sensor........8W-30-7
Engine Starter Motor Relay .............8W-30-11
Fuel Injector No. 1 .....................8W-30-5
Fuel Injector No. 2 .....................8W-30-5
Fuel Injector No. 3 .....................8W-30-5
Fuel Injector No. 4 .....................8W-30-5
Fuel Injector No. 5 .....................8W-30-5
Fuel Injector No. 6 .....................8W-30-5
Fuel Pump Module.....................8W-30-3
Fuel Pump Relay ......................8W-30-3
Fuse 13 (JB).........................8W-30-14
Fuse 18 (JB)........................8W-30-2, 3
Fuse 20 (JB) ......................8W-30-12, 13
Fuse A (PDC) .........................8W-30-3
Fuse B (PDC).........................8W-30-2
G104 ...............................8W-30-2
G105 .............................8W-30-4, 9
G106 ...............................8W-30-8
G107 ...............................8W-30-4
G200 ..............................8W-30-14
G201 ..............................8W-30-14
G300 ...............................8W-30-3
Generator............................8W-30-2
High Speed Radiator Fan Relay ..........8W-30-12
Idle Air Control Motor .................8W-30-13
Ignition Coil Pack .....................8W-30-4
Ignition Coil Pack Helical Shield ..........8W-30-4
Instrument Cluster....................8W-30-15
Intake Air Temperature Sensor...........8W-30-10
Junction Block..............8W-30-2, 3, 12, 13, 14
Knock Sensor No. 1 ....................8W-30-7
Knock Sensor No. 2 ....................8W-30-7
Left Downstream Heated Oxygen Sensor . . . .8W-30-9
Left Upstream Heated Oxygen Sensor ......8W-30-8
Low Speed Radiator Fan Relay...........8W-30-12
Component Page
Manifold Absolute Pressure Sensor........8W-30-10
Manifold Tuning Valve Solenoid ..........8W-30-13
Overhead Console.....................8W-30-15
Power Distribution Center ..........8W-30-2, 3, 11
Powertrain Control Module ........8W-30-2, 3, 4, 5,
6, 7, 8, 9, 10, 11, 12, 13, 14, 15
Remote Keyless Entry Module ...........8W-30-14
Right Downstream Heated Oxygen Sensor . . .8W-30-9
Right Upstream Heated Oxygen Sensor .....8W-30-8
S107................................8W-30-3
S116................................8W-30-2
S120..............................8W-30-2, 3
S122...............................8W-30-15
S123...............................8W-30-15
S124............................8W-30-12, 13
S127...............................8W-30-11
S128 .......................8W-30-6, 7, 8, 9, 10
S129 ........................8W-30-2, 4, 5, 8, 9
S130.............................8W-30-7, 10
S132................................8W-30-9
S133................................8W-30-2
S134...............................8W-30-11
S135................................8W-30-7
S137................................8W-30-6
S138 .........................8W-30-6, 7, 8, 10
S139.............................8W-30-7, 10
S140................................8W-30-6
S141 .........................8W-30-6, 7, 8, 10
S143................................8W-30-4
S144................................8W-30-4
S145............................8W-30-4, 5, 8
S148............................8W-30-4, 5, 8
S150................................8W-30-9
S151................................8W-30-9
S152................................8W-30-9
S154...............................8W-30-14
S207...............................8W-30-14
S212............................8W-30-14, 15
S214............................8W-30-14, 15
S222...............................8W-30-14
S236...............................8W-30-14
S237...............................8W-30-14
S304................................8W-30-3
Stop Lamp Switch ....................8W-30-11
Throttle Position Sensor.................8W-30-7
Transmission Control Module ......8W-30-11, 14, 15
Transmission Range Switch .............8W-30-11
Vehicle Speed Control Servo .............8W-30-11
Vehicle Speed Control/Horn Switch........8W-30-11
Page 78
8W - 30 - 2 8W-30 FUEL/IGNITION SYSTEM
LH
BATT A0
B
A14
16
RD/WT
(8W-10-4)
FUSE
B
20A
(8W-10-7)
POWER
DISTRIBUTION
CENTER
(8W-10-4)
4C
4D
4B4A
S116
(8W-10-7)
AUTOMATIC
SHUT
DOWN
RELAY
(IN PDC)
S129
(8W-70-4)
(8W-70-5)
A142
16
DG/OR
ST-RUN A21
FUSE
18
10A
(8W-12-19)
7
C2
F12
20
DB/WT
S120
(8W-12-19)
(8W-10-6)
JUNCTION
BLOCK
(8W-12-2)
A14
16
RD/WT
46
C2
FUSED
B (+)
GROUND
10
C1 C2
Z12
16
BK/TN
K51
20
DB/YL
67
AUTO AUTO
SHUT
DOWN
RELAY
CONTROL
A142
16
DG/OR
C2 C1
6
SHUT
DOWN
RELAY
OUTPUT
2
GENERATOR
(8W-20-2)
1
K20
18
DG
4
C1
GENERATOR
FIELD
DRIVER
GROUND
50
Z12
16
BK/TN
S133
Z12
16
BK/TN
F12
20
DB/WT
20
C1
FUSED
IGN.
(ST-RUN)
GROUND
47
C2
Z11
20
BK/WT
POWERTRAIN
CONTROL
MODULE
G104
978W-11 LH003002
Page 79
LH
8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 3
ST-RUN A21
FUSE
18
10A
(8W-12-20)
7
C2
F12
20
DB/WT
S120
(8W-12-19)
F12
20
DB/WT
5C 5D
(8W-10-6)
JUNCTION
BLOCK
(8W-12-2)
BATT A0
A
5B5A
A141
16
DG/BK
12
C2
3
C9
A141
16
DG/BK
3
C309
1
M
FUSE
A
20A
(8W-10-5)
A1
12
RD
S107
(8W-10-5)
A1
16
RD
JUNCTION
BLOCK
(8W-12-3)
(8W-10-4)
FUEL
PUMP
RELAY
(IN PDC)
POWER
DISTRIBUTION
CENTER
(8W-10-4)
FUEL
LEVEL
SENSOR
SIGNAL
23
8
2
2
F
BODY
CONTROL
MODULE
(8W-45-6)
C2
G4
22
DB
C211
G4
22
DB
C309
G4
18
DB
FUEL
PUMP
MODULE
E
K31
20
BR
74
C2
FUEL PUMP
RELAY
CONTROL
POWERTRAIN
CONTROL
MODULE
3
Z1
18
BK/TN
4 1
Z1
20
BK/TN
4
Z1
16
BK
C309
Z1
16
BK
S304
(8W-15-9)
Z1
14
BK
G300
LH003003 978W-11
(8W-15-9)
Page 80
8W - 30 - 4 8W-30 FUEL/IGNITION SYSTEM
LH
BATT A14
4D
A142
16
DG/OR
S129
(8W-70-4)
(8W-70-5)
11
C142
(8W-10-7)
AUTOMATIC
SHUT
DOWN
RELAY
(IN PDC)
(8W-30-2)
A142
16
DG/OR
A142
16
DG/OR
A142
16
DG/OR
3
3.3L3.5L
S148
(8W-70-4)
(8W-70-5)
S145
(8W-70-4)
(8W-70-5)
IGNITION
COIL
PACK
S143
CAPACITOR
S144
K17
20
WT
10
K17
20
3
C1
IGN COIL
NO. 2
DRIVER
1
K18
20
RD
11
K18
20
RDWT
2
C1 C1
IGN COIL
NO. 1
DRIVER
24
K19
20
BK
C141
12
K19
20
BK
11
IGN COIL
NO. 1
DRIVER
Z1 18 BK
Z1 18 BK
12
Z1 18 BK
IGNITION
COIL
PACK
HELICAL
SHIELD
POWERTRAIN
CONTROL
MODULE
Z1
16
BK
G107
C142
Z1
18
BK
G105
(8W-15-4)
978W-11 LH003004
Page 81
LH
8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 5
A142
16
DG/OR
1
DG/OR
DG/OR
FUEL
INJECTOR
NO. 1
BATT A14
(8W-10-7)
AUTOMATIC
SHUT
DOWN
RELAY
4D
A142
16
DG/OR
(IN PDC)
(8W-30-2)
S129
(8W-70-4)
(8W-70-5)
11
C142
A142 A142
16
A142
16
DG/OR
3.3L3.5L
16
DG/OR
S145
(8W-70-4)
A142
16
(8W-70-5)
A142
16
DG/OR
1
A142
16
DG/OR
A142
16
DG/OR DG/OR
1
FUEL
INJECTOR
NO. 5
FUEL
INJECTOR
NO. 2
A142
16
S148
(8W-70-4)
(8W-70-5)
2
K11
20
WT/DB
1
K11
WT/DB
13
C1
INJ.
NO. 1
DRIVER
1
2
K13
20 20
YL/WT
3
K13
YL/WT
7
C1 C1 C1 C1 C1
INJ. INJ. INJ. INJ.INJ.
NO. 3
DRIVER
2
FUEL
INJECTOR
NO. 3
BR/RD
5
BR/RD
15
DRIVER
K38
K38
NO. 5
2
1
FUEL
INJECTOR
NO. 4
2 2
K14
20
426
K14
LB/BR
16
K12
20 20
TN
K12
TN
17
1
FUEL
INJECTOR
NO. 6
K58
BR/BKLB/BR
C141
K58
202020202020
BR/BK
14
POWERTRAIN
NO. 4
DRIVER
NO. 2
DRIVER
NO. 6
DRIVER
CONTROL
MODULE
LH003005 978W-11
Page 82
8W - 30 - 6 8W-30 FUEL/IGNITION SYSTEM
CRANKSHAFT
POSITION
CKP
SENSOR
3
SENSOR
GROUNDSIGNAL
2
5V
SUPPLY
1
SENSOR
LH
K24
20
LB/DB
3.3L 3.5L
K4
20
BK/LB
SENSOR
GROUND
2
K4
20
BK/LB
S141
(8W-70-3)
K4
20
BK/LB
S138
(8W-70-3)
K7
20
OR
K7
20
OR
1
5V
SUPPLY
S140
(8W-70-6)
CAMSHAFT
POSITION
SENSOR
CMP
SENSOR
SIGNAL
3
9
C141
S137
(8W-31-4)
K24
LB/DB
32
C1
CKP
SENSOR
SIGNAL
978W-11 LH003006
3
K4
20
BK/LB
K4
20 20 2020
BK/LB
43
SENSOR
GROUND
C142
S128
(8W-70-2)
C2
K44
20
TN/YL
8
K44
TN/YL
33
CMP
SENSOR
SIGNAL
C1
K7
20
OR
9
K7
OR
44
5V
SUPPLY
C142
C2
POWERTRAIN
CONTROL
MODULE
Page 83
LH
K6
20
VT/WT
K6
20
VT/WT
4
K6
20
VT/WT
S139
(8W-70-6)
2
K22
20
OR/DB
5
K22
20
OR/DB
C142
8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 7
3
THROTTLE
POSITION
SENSOR
1
K4
20
BK/LB
S141
(8W-70-3)
K4
18
BK/LB
1
ENGINE
COOLANT
TEMPERATURE
SENSOR
2
K4
20
BK/LB
K4
20
BK/LB
3
S138
(8W-70-3)
C142
S130
(8W-70-6) (8W-31-4)
K6
20
VT/WT
61
C2
5V
SUPPLY GROUND
K22
OR/DB
35
TP
SENSOR
SIGNAL
20
S135
C1
KNOCK
SENSOR
NO. 1
SIGNAL
24
C1
K42
20
BK/LG
13
K42
20
BK/LG
2
K2
18
TN/BK
7
K2
20
TN/BK
26
ECT
SENSOR
SIGNAL
C142
C1
KNOCK
SENSOR
NO. 2
SIGNAL
25
C1
K142
20
GY/BK
14
C142
K142
20
GY/BK
1
C165
K4
20
BK/LB
K4
20
BK/LB
43
SENSOR
S128
(8W-70-2)
C2
POWERTRAIN
CONTROL
MODULE
K42
20
BK/LG
K142
20
GY/BK
KNOCK KNOCK
SENSOR
NO. 1
(3.5L)
LH003007 978W-11
SENSOR
NO. 2
(3.5L)
Page 84
8W - 30 - 8 8W-30 FUEL/IGNITION SYSTEM
LH
BATT A14
(8W-10-7)
AUTOMATIC
SHUT
DOWN
RELAY
4D
A142
16
DG/OR
(IN PDC)
(8W-30-2)
S129
(8W-70-4)
(8W-70-5)
11
C142
3.3L3.5L
A142 A142
16
DG/OR
16
DG/OR
S145 S148
(8W-70-4)
(8W-70-5)
(8W-70-4)
(8W-70-5)
(8W-70-4)
(8W-70-5)
S145S148
(8W-70-4)
(8W-70-5)
4
3 1
K4
K41
20
BK/DG
7
K41
20
BK/DG
20
BK/LB
C141
2
2
4
LEFT
UPSTREAM
HEATED
OXYGEN
SENSOR SENSOR
Z1
20
BK
1
Z1
20
BK BK/LB
3
K4
20
G106
S138
(8W-70-3)
K4
20
BK/LB
3
C142
S128
(8W-70-2)
K4
20
BK/LB
RIGHT
UPSTREAM
HEATED
OXYGEN
S141
(8W-70-3)
K141
20
TN/WT
8
K141
20
TN/WT
C141
30
C1
LEFT
UPSTREAM
HEATED
OXYGEN
SENSOR
978W-11 LH003008
43
C2
SENSOR
GROUND
29
C1
RIGHT
UPSTREAM
HEATED
OXYGEN
SENSOR
POWERTRAIN
CONTROL
MODULE
Page 85
LH
8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 9
4D
2 3
BATT A14
(8W-10-7)
AUTOMATIC
SHUT
DOWN
RELAY
(IN PDC)
A142
16
DG/OR
(8W-30-2)
S129
(8W-70-4)
(8W-70-5)
9
C139
A142 A142
16
DG/OR
DG/OR
32
LEFT
DOWNSTREAM
HEATED
OXYGEN
SENSOR SENSOR
41
41
S151
(8W-70-4)
(8W-70-5)
16
RIGHT
DOWNSTREAM
HEATED
OXYGEN
20
BK/LB
Z1
20
BK
Z1
20
BK
K4K4
20
BK/LB
S152
3
C143
Z1
20
BK
S132
(8W-15-4)
Z1
18
BK
G105
(8W-15-4)
S150
K341
20
TN/WT
1
C143
K341
20
TN/WT
51
C2
LEFT
DOWNSTREAM
HEATED
OXYGEN
SENSOR
LH003009 978W-11
SIGNAL SIGNAL
2
C143
S128
(8W-70-2)
K4
20
BK/LB
43
C2
SENSOR RIGHT
GROUND
(8W-70-2)
K241
20
LG/RD
4
C143
K241
20
LG/RD
1
C1
DOWNSTREAM
HEATED
OXYGEN
SENSOR
POWERTRAIN
CONTROL
MODULE
Page 86
8W - 30 - 10 8W-30 FUEL/IGNITION SYSTEM
1
MANIFOLD
ABSOLUTE
PRESSURE
SENSOR
3.3L3.5L
2 3
3.5L 3.3L
23
LH
K6
20
VT/WT
S139
(8W-70-6)
K1
20
DG/RD
3.5L3.3L
K4
20
BK/LB
1
INTAKE
AIR
TEMPERATURE
2
BK/RD
SENSOR
K21
20
K4
20
BK/LB
K4
20
BK/LB
S141
(8W-70-3)
S138
(8W-70-3)
SENSOR
1
K4
20
BK/LB
K6
20
VT/WT
2
5V
SUPPLY
PRESSURE
K6
20
VT/WT
4
C142
K6
20
VT/WT
S130
(8W-70-6)
A/C
PRESSURE
TRANSDUCER
A/C
SIGNALGROUND
3
6
32
C142
S128
(8W-70-2)
K1
20
DG/RD
36
MAP
SENSOR
SIGNAL
978W-11 LH003010
K21 K6
20
BK/RD
37
C1
IAT
SENSOR
SIGNAL
K4
20
BK/LB
43
C2
SENSOR
GROUND
C18
20
DB
42
C2
A/C
PRESSURE
SIGNAL
20
VT/WT
61
5V
SUPPLY
C2C1
POWERTRAIN
CONTROL
MODULE
Page 87
LH
8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 11
ST A41
8A
8C
T41
20
BK/LG
(8W-10-6)
ENGINE
STARTER
MOTOR
RELAY
(8W-21-2)
12
T41
20
BK/LG
5
S134
(8W-70-6)
C139
TRANSMISSION
RANGE
PN
SWITCH
(8W-31-5)
POWER
DISTRIBUTION
CENTER
(8W-10-4)
VEHICLE
SPEED
CONTROL/
HORN
SWITCH
(8W-33-3)
1 CANCEL
2 RESUME/ACCEL
4 3 2 1
3 SET/COAST
4 ON/OFF
CLOCKSPRING
(8W-33-3)
1 2
T41
20
BK/LG
76
C2
PARK
NEUTRAL
SENSE
V36
20
TN/RD
78
C2
SPEED
CONTROL
VACUUM
SOLENOID
CONTROL CONTROL
V35
LG/RD
80
SPEED
CONTROL
VENT
SOLENOID
20
C2
VEHICLE
SPEED
CONTROL
SERVO
(8W-33-3)
1
K29
20
WT/PK
4
K29
20
WT/PK
62
C2
STOP
LAMP
SWITCH
SENSE
STOP
LAMP
SWITCH
(8W-33-3)
3
V32
20
YL/RD
3
V32
20
YL/RD
5
C1
SPEED
CONTROL
ON/OFF
SENSE
2
V37
20
RD/LG
26
C110
V37
20
RD/LG
41
C2
SPEED
CONTROL
SWITCH
SIGNAL
TORQUE
MGMT
REQ
SENSE
10
PROPORTIONAL
STEERING
T10
20
YL/DG
63
C2
TORQUE
MANAGEMENT
REQUIREMENT
SENSE
SPEED
S127
(8W-65-2)
VSS
SIGNAL
58
G7
20
WT/OR
G7
20
WT/OR
66
VSS
SIGNAL
TRANSMISSION
CONTROL
MODULE
(8W-31-4)
(8W-31-8)
OTHERS
C2
POWERTRAIN
CONTROL
MODULE
LH003011 978W-11
Page 88
8W - 30 - 12 8W-30 FUEL/IGNITION SYSTEM
LH
ST-RUN A21
F18
20
LG/BK
3A
1A 2A
A/C HIGH
COMPRESSOR
CLUTCH
RELAY
3C 1C
(IN PDC)
(8W-42-7)
7
F18
20
LG/BK
F18
20
LG/BK
FUSE
20
10A
(8W-12-20)
C1
SPEED
RADIATOR
FAN
RELAY
(IN PDC)
(8W-10-6)
JUNCTION
BLOCK
(8W-12-2)
F18
LG/BK
2C
S124
(8W-12-20)
20
LOW
SPEED
RADIATOR
FAN
RELAY
(IN PDC)
(8W-42-8)(8W-42-8)
C28
20
DB/OR
64
C2
A/C
COMPRESSOR
CLUTCH
RELAY
CONTROL
978W-11 LH003012
C27
20
DB/PK
69
HIGH
SPEED
RADIATOR
FAN
RELAY
CONTROL
C24
20
WT
55
C2C2
LOW
SPEED
RADIATOR
FAN
RELAY
CONTROL
POWERTRAIN
CONTROL
MODULE
Page 89
LH
8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 13
IAC
MOTOR
1
K39
20
GY/RD
16
MOTOR
NO. 2NO. 1
2
K60
20 2020
YL/BK
15
IAC
MOTOR
NO. 3 NO. 4
3
K40
BR/WT
14
C141
MOTOR
4
VT/GY
1
IACIAC
K59
C142
IDLE
AIR
CONTROL
MOTOR
F18
20
LG/BK
10
C142
F18
20
LG/BK
2
EGR
SOLENOID
ST-RUN A21
FUSE
20
10A
(8W-12-20)
7
C1
F18
20
LG/BK
F18
20
LG/BK
(8W-10-6)
JUNCTION
BLOCK
(8W-12-2)
S124
(8W-12-20)
F18
20
LG/BK
1
DUTY
CYCLE
EVAP/
PURGE
SOLENOID
2
1
1
MANIFOLD
TUNING
K35
20
GY/YL
13
C141
C2
K60
YL/BK
49
C2 C2C2
IAC
MOTOR
NO. 2
DRIVER
K39
GY/RD
57
IAC
MOTOR
NO. 1
DRIVER
LH003013 978W-11
K40
BR/WT
48
IAC
MOTOR
NO. 3
DRIVER
K59
VT/BK
58
IAC
MOTOR
NO. 4
DRIVER
K35
2020202020
GY/YL
40
C1
EGR
SOLENOID
CONTROL
39
MANIFOLD
SOLENOID
CONTROL
2
K36
20
VT/RD
VALVE
SOLENOID
(3.5L)
C1
K52
20
PK/BK
68
C2
EVAP/
PURGE
SOLENOID
CONTROL
POWERTRAIN
CONTROL
MODULE
Page 90
8W - 30 - 14 8W-30 FUEL/IGNITION SYSTEM
LH
BATT A7
6
(8W-10-9)
FUSE
13
10A
(8W-12-15)
C3
JUNCTION
BLOCK
(8W-12-2)
RKE
MODULE
PROGRAM
ENABLE
5
C2
REMOTE
KEYLESS
ENTRY
MODULE
(8W-61-5)
S207
(8W-12-15)
M1
22
PK
16
6 4
D20
22
LG
D21
22
PK
D9
22
DG
1
14
D6
20
PK/LB
D1
20
VT/BR
3
Z1
22
BK
TOTO
S212S214
(8W-30-15)(8W-30-15)
D2
20
WH/BK
11
DATA
LINK
CONNECTOR
57
Z2
22
BK/LG
25
24
D20
20
LG
75
C2
SCI
RECEIVE
D21
20
PK
9
C110
D6
20
PK/LB
46
SCI
RECEIVE
SCI
TRANSMIT
7
S154
D21
20
PK
65
C2
SCI
TRANSMIT
TRANSMISSION
CONTROL
MODULE
(8W-31-8)
POWERTRAIN
CONTROL
MODULE
S237
Z1
20
BK
S222
(8W-15-8)(8W-15-6)
S236
(8W-15-6)
Z1
20
BK
Z2
20
BK/LG
G200 G201
(8W-15-7) (8W-15-8)
978W-11 LH003014
Page 91
LH
8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 15
AUTOMATIC
CCD
BUS
(+) (-)
3 4
C1
CCD
BUS
TEMPERATURE
CONTROL
MODULE
(8W-42-4)
C1
CCD
BUS
DATA
3
11
LINK
CONNECTOR
D2D1
20
VT/BR VT/BR
D1 D2
20
VT/BR
8 293 30
D1 D2
20
VT/BR
20
WT/BK
20
WT/BK VT/BR
20
WT/BK
D1
20
VT/BR
D1 D2
20
D1 D2
20
VT/BR
D2
20
WT/BK
20
WT/BK
C110C239
20
WT/BK
20
VT/BR
D1 D2
20
18
VT/BR
3 4
BUS
(+)
D2D1
20
WT/BK
C3
S214
C1
CCD
BUS
(-)(+)
78
20
WT/BK
D2D1
18
WT/BK
CCDCCD
BUS
(-)
BODY
CONTROL
MODULE
(8W-45-9)
C3
S212
C1
AIRBAG
CONTROL
MODULE
(8W-43-3)
2 1
OVERHEAD
CCDCCD
WT/BK
275
BUS
CONSOLE
(-)
(8W-49-3)
D2D1
20
CONTROLLER
BUS
ANTI-LOCK
(-)
BRAKE
BUS
(+)
20
VT/BR
CCD CCD
BUS
(+)
VT/BR
59
20
CCD
BUS
(+)
C2
WT/BK
60
CCD
D2D1
20
C2
POWERTRAIN
BUS
CONTROL
(-)
MODULE
23
C2
CCD CCD
BUS
(+)
BUS
(-)
C2
INSTRUMENT
CLUSTER
(8W-40-3)(8W-49-2)
S122
D1 D2
20
VT/BR
43 4
BUS
(+)
S123
20
WT/BK
CCDCCD
BUS
(-)
TRANSMISSION
CONTROL
MODULE
(8W-31-8)(8W-35-2)
LH003015 978W-11
Page 92
8W - 30 - 16 8W - 30 FUEL/IGNITION SYSTEM LH
8W-30 FUEL/IGNITION SYSTEM
INDEX
page page
DESCRIPTION AND OPERATION
AUTOMATIC SHUT-DOWN RELAY ........... 17
BATTERY FEED ......................... 16
CAMSHAFT POSITION SENSOR ............ 18
CRANKSHAFT POSITION SENSOR .......... 18
DUTY CYCLE EVAP/PURGE SOLENOID ......20
ELECTRONIC EGR TRANSDUCER (EET)
SOLENOID ........................... 21
ENGINE COOLANT TEMPERATURE SENSOR . . 18
FUEL INJECTORS ....................... 20
FUEL LEVEL INPUT ...................... 21
FUEL PUMP MOTOR ..................... 17
HEATED OXYGEN SENSORS ..............18
IDLE AIR CONTROL MOTOR ...............20
DESCRIPTION AND OPERATION
IGNITION SWITCH
When the ignition switch is in the START/RUN
position, it connects circuit A1 from the Power Distribution Center (PDC) to circuit A21 through the ignition switch. A 20 amp fuse in cavity A of the PDC
protects circuits A1 and A21. Circuit A1 is spliced
and provides power to the fuel pump relay and the
engine starter motor relay.
The A21 circuit connects from the ignition switch
to the junction block and splices to provide power to
the F12 and F18 circuits.
The F12 circuit is protected by a 10 amp fuse
located in cavity 18 of the junction block. Circuit F12
is spliced and connects to the Powertrain Control
Module (PCM), fuel pump relay, and the Automatic
Shut- Down (ASD) relay coil side.
The F18 circuit is protected by a 10 amp fuse
located in cavity 20 of the junction block. Circuit F18
is spliced and provides power to the manifold tuning
solenoid, exhaust gas recirculation solenoid, A/C compressor clutch relay, EVAP/Purge solenoid, and the
radiator fan relays.
IGNITION COIL PACK ..................... 20
IGNITION SWITCH ....................... 16
INTAKE AIR TEMPERATURE SENSOR ........ 19
KNOCK SENSOR ........................ 19
MANIFOLD ABSOLUTE PRESSURE SENSOR . . 19
MANIFOLD TUNING VALVE SOLENOID .......21
PARK/NEUTRAL SWITCH INPUT ............ 21
POWER (DEVICE) GROUND ............... 16
SIGNAL GROUND .......................16
THROTTLE POSITION SENSOR ............ 19
TORQUE MANAGEMENT INPUT ............ 21
UNIVERSAL DATA LINK CONNECTOR ........ 17
VEHICLE SPEED INPUT .................. 17
POWER (DEVICE) GROUND
Circuit Z12 connects to cavities 10 and 50 of the
Powertrain Control Module (PCM) connector. The
Z12 circuits provides ground for the PCM internal
drivers that operate high current devices like injectors and ignition coils.
Internal to the PCM, the power (device) ground circuit connects to the PCM sensor return circuit from
circuit K4.
HELPFUL INFORMATION
•
Circuit Z12 which supplies a ground for the PCM
high current drivers, has the same termination point as
the circuit Z11. The termination point is the right headlamp ground located at the right front frame rail.
• If the system loses ground for the ganged circuits the vehicle will not operate. Check the connection at the ground eyelet.
SIGNAL GROUND
Circuit Z11 connects to cavity 47 of the Powertrain
Control Module (PCM) connector. The Z11 circuit provides ground for the sensors that provide inputs to
the PCM.
BATTERY FEED
Circuit A14 is used to provide a constant battery
feed to the Powertrain Control Module (PCM), cavity
46. This circuit originates in the Power Distribution
Center (PDC) and is protected by a 20 amp fuse
located in cavity B. It is also spliced and provides
power for the Automatic Shut- Down (ASD) relay
contact side.
HELPFUL INFORMATION
•
Circuit Z11, which supplies a ground for the PCM
sensors, has the same termination point as the Z12
circuit. This ground terminates at the right headlamp
ground located at the right front frame rail.
• If the system loses ground for the ganged circuits the vehicle will not operate. Check the connection at the ground eyelet.
Page 93
LH 8W - 30 FUEL/IGNITION SYSTEM 8W-30-17
DESCRIPTION AND OPERATION (Continued)
UNIVERSAL DATA LINK CONNECTOR
Circuit M1 supplies battery voltage to the data
link connector. This circuit is protected by a 10 amp
fuse located in cavity 13 of the junction block. Circuit
M1 is the Ignition- Off Draw (IOD) circuit and supplies power to the Body Control Module (BCM), radio
memory, interior lamps, power sunroof, and the
power antenna.
A twisted pair of wires, circuits D1 and D2, connect
to the data link connector and the Powertrain Control Module, cavities 59 and 60. These wires are connected to the CCD Bus. The CCD Bus is used for
diagnosing vehicle components and modules.
Circuits D20 and D21 from the Powertrain Control
Module (PCM) connect to the data link connector.
Circuit D20 connects to cavity 75 of the PCM and is
the SCI receive circuit. Circuit D21 connects to cavity
65 of the PCM and is the SCI transmit.
Cirucit D21 is also spliced and connects to the
Transmission Control Module (TCM).
Circuit Z2 is the ground for the universal data link
connector. This ground terminates at the Airbag Control Module (ACM) bracket.
Two other circuits also connect to the universal
data link connector. They are the D6 and D9 circuits.
The D6 circuit connects to the TCM and is used for
diagnostics. The D9 circuit is connected to the
Remote Keyless Entry (RKE) module and is used for
programming the system.
FUEL PUMP MOTOR
The fuel pump motor, located in the fuel tank, is
controlled by the fuel pump relay located in the
Power Distribution Center (PDC). Power for the coil
side of the relay is provided by circuit F12. The F12
circuit is HOT in the START and RUN position only
and protected by a 10 amp fuse located in cavity 18
of the junction block.
Circuit A21 is used to power the fuse, and is connected between the ignition switch and the junction
block. Power for the A21 circuit is provided by circuit
A1. This circuit originates in the PDC and is protected by a 20 amp fuse located in cavity A.
The F12 circuit is spliced and provides voltage to
the Powertrain Control Module (PCM), cavity 20.
The ground for the coil side of the relay is controlled by the PCM through circuit K31. The K31 circuit connects to cavity 74 of the PCM. Logic internal
to the PCM determines when the coil side of the
relay should be grounded.
When the PCM grounds circuit K31, contacts internal to the fuel pump relay CLOSE connecting circuits
A1 and A141. Circuit A1 is connected to the BUS bar
in the PDC, HOT at all times, and protected by a 20
amp fuse located in cavity A. Circuit A141 is connected from the relay to the fuel pump motor.
Ground for the fuel pump motor is provided on circuit Z1. This ground terminates at the body ground,
located on the left rear wheel well.
AUTOMATIC SHUT-DOWN RELAY
The Automatic Shut-Down (ASD) relay is located
in the Power Distribution Center (PDC). Power for
the coil, and contact sides of the relay is provided by
circuit A14. This circuit is HOT at all times, and is
protected by a 20 amp fuse in cavity B of the PDC.
The Powertrain Control Module (PCM) controls the
ground path for the coil side of the relay on circuit
K51. This circuit connects to cavity 67 of the Powertrain Control Module (PCM) connector.
When the ASD relay is energized, the contacts
internal to the relay CLOSE connecting circuits A14
and A142. The A142 circuit is spliced and provides
power to the fuel injectors, generator, and the PCM.
HELPFUL INFORMATION
• Refer to Group 14, Fuel System, for system oper-
ation
• Check the 20 amp fuse located in cavity B of the
PDC
HELPFUL INFORMATION
• Check the 20 amp fuse located in cavity A of the
PDC
• Check the 10 amp fuse located in cavity 18 of
the junction block
• Check the body ground located on the left rear
wheel well
• Refer to Group 14, Fuel System, of the Service
Manual or the appropriate Diagnostic Test Procedures Manual for additional information
VEHICLE SPEED INPUT
The Powertrain Control Module (PCM) receives an
input on vehicle speed from the Transmission Control
Module (TCM).
Circuit G7, from the TCM, provides an input signal
to the PCM. The G7 circuit connects to cavity 66 of
the PCM connector.
Page 94
8W - 30 - 18 8W - 30 FUEL/IGNITION SYSTEM LH
DESCRIPTION AND OPERATION (Continued)
HEATED OXYGEN SENSORS
There are four heated oxygen sensors used on this
vehicle, regardless of engine application. They are
identified as the left upstream, left downstream,
right upstream, and right downstream.
Power for the heated oxygen sensors is supplied on
circuit A142. This circuit is HOT when the contact
side of the Automatic Shut Down (ASD) relay is
CLOSED. The Powertrain Control Module (PCM)
controls the ASD relay by providing a ground path on
circuit K51. The K51 circuit connects to cavity 67 of
the PCM connector.
Circuit K41 delivers the signal from the left
upstream heated oxygen sensor to the PCM. Circuit
K41 connects to cavity 30 of the PCM connector.
Circuit K141 delivers the signal from the right
upstream heated oxygen sensor to the PCM. Circuit
K141 connects to cavity 29 of the PCM connector.
Circuit K341 delivers the signal from the left
downstream heated oxygen sensor to the PCM. Circuit K341 connects to cavity 51 of the PCM connector.
Circuit K241 delivers the signal from the right
downstream heated oxygen sensor to the PCM. Circuit K241 connects to cavity 1 of the PCM connector.
The PCM provides a ground for the heated oxygen
sensor signals (circuits K41, K141, K241, and K341)
through circuit K4. Circuit K4 connects to cavity 43
of the PCM connector.
HELPFUL INFORMATION
Circuit K4 splices to supply ground for the signals
for the following:
• Intake air temperature sensor
• Engine coolant temperature sensor
• Manifold absolute pressure sensor
• Throttle position sensor
• A/C pressure switch
• Camshaft position sensor
• Crankshaft position sensor
CRANKSHAFT POSITION SENSOR
Both engine packages available in this vehicle use
a crankshaft position sensor.
Circuit K7 supplies 5 volts from the Powertrain
Control Module (PCM) to the crankshaft position
sensor. The K7 circuit connects to cavity 44 of the
PCM.
Circuit K24 from the sensor provides an input signal to the PCM. The K24 circuit connects to cavity 32
of the PCM. This circuit is spliced and provides an
input to the Transmission Control Module (TCM).
The PCM provides a ground for the crankshaft
position sensor signal (circuit K24) through circuit
K4. Circuit K4 connects to cavity 43 of the PCM connector.
HELPFUL INFORMATION
The K7 circuit is spliced and provides 5 volts for
the camshaft position sensor.
Circuit K4 splices to supply ground for the signals
from the following:
• Intake air temperature sensor
• Engine coolant temperature sensor
• Manifold absolute pressure sensor
• Throttle position sensor
• A/C pressure switch
• Camshaft position sensor
CAMSHAFT POSITION SENSOR
Circuit K7 supplies 5 volts from the Powertrain
Control Module (PCM) to the camshaft position sensor. The K7 circuit connects to cavity 44 of the PCM
connector.
Circuit K44 from the sensor provides an input signal to the PCM. The K44 circuit connects to cavity 33
of the PCM.
The PCM provides a ground for the camshaft position sensor signal (circuit K44) through circuit K4.
Circuit K4 connects to cavity 43 of the PCM connector.
HELPFUL INFORMATION
The K7 circuit is spliced and provides 5 volts for
the crankshaft position sensor.
Circuit K4 splices to supply ground for the signals
from the following:
• Intake air temperature sensor
• Engine coolant temperature sensor
• Manifold absolute pressure sensor
• Throttle position sensor
• A/C pressure switch
• Crankshaft position sensor
ENGINE COOLANT TEMPERATURE SENSOR
The engine coolant temperature sensor provides an
input to the Powertrain Control Module (PCM) on
circuit K2. This sensor input is also used for the
instrument cluster coolant temperature gauge. Refer
to Section 8W-40 for engine coolant temperature
gauge circuit description.
From circuit K2, the engine coolant temperature
sensor draws up to 5 volts from the PCM. The sensor
is a variable resistor. As coolant temperature changes
the resistance in the sensor changes, causing a
change in current draw. The K2 circuit connects to
cavity 26 of the PCM connector. The PCM provides a
ground for the engine coolant temperature sensor signal (circuit K2) through circuit K4. Circuit K4 connects to cavity 43 of the PCM.
Page 95
LH 8W - 30 FUEL/IGNITION SYSTEM 8W-30-19
DESCRIPTION AND OPERATION (Continued)
HELPFUL INFORMATION
Circuit K4 splices to supply ground for the signals
from the following:
• Intake air temperature sensor
• Camshaft position sensor
• Manifold absolute pressure sensor
• Throttle position sensor
• A/C pressure switch
• Crankshaft position sensor
THROTTLE POSITION SENSOR
From the Powertrain Control Module (PCM), circuit K6 supplies 5 volts to the Throttle Position Sensor (TPS). Circuit K6 connects to cavity 61 of the
PCM connector.
The K22 circuit delivers the TPS signal to the
PCM. Circuit K22 connects to cavity 35 of the PCM
connector. This circuit is spliced and provides an
input to the Transmission Control Module (TCM) on
throttle position.
The PCM provides a ground path for the TPS signal (circuit K22) through circuit K4. Circuit K4 connects to cavity 43 of the PCM connector.
HELPFUL INFORMATION
Refer to Group 14, Fuel System, for throttle position sensor operation.
Circuit K6 is spliced and provides 5 volts to the
A/C pressure switch and the map sensor.
On automatic transmission vehicles, circuit K22 is
spliced and provides an input to the Transmission
Control Module (TCM).
Circuit K4 splices to supply ground for the signals
from the following:
• Intake air temperature sensor
• Camshaft position sensor
• Manifold absolute pressure sensor
• Ambient temperature sensor
• A/C pressure switch
• Crankshaft position sensor
MANIFOLD ABSOLUTE PRESSURE SENSOR
From the Powertrain Control Module (PCM), circuit K6 supplies 5 volts to the Manifold Absolute
Pressure (MAP) sensor. Circuit K6 connects to cavity
61 of the PCM connector.
Circuit K1 delivers the MAP signal to the PCM.
Circuit K1 connects to cavity 36 of the PCM connector.
The PCM provides a ground path for the MAP signal (circuit K1) through circuit K4. Circuit K4 connects to cavity 43 of the PCM connector.
HELPFUL INFORMATION
Refer to Group 14, Fuel System, for MAP sensor
operation.
Circuit K6 is spliced and provides 5 volts to the
A/C pressure switch and the throttle position sensor.
Circuit K4 splices to supply ground for the signals
from the following:
• Intake air temperature sensor
• Camshaft position sensor
• Throttle position sensor
• Ambient temperature sensor
• A/C pressure switch
• Crankshaft position sensor
INTAKE AIR TEMPERATURE SENSOR
The intake air temperature sensor provides an
input to the Powertrain Control Module (PCM) on
circuit K21. The K21 circuit connects to cavity 37 of
the PCM connector.
From circuit K21, the intake air temperature sensor draws voltage from the PCM. The sensor is a
variable resistor. As intake air temperature changes,
the resistance in the sensor changes, causing a
change in current draw.
The PCM provides a ground path for the intake air
temperature sensor signal (circuit K21) through circuit K4. Circuit K4 connects to cavity 43 of the PCM
connector.
HELPFUL INFORMATION
Refer to Group 14, Fuel System, for intake air temperature sensor operation.
Circuit K4 splices to supply ground for the signals
from the following:
• Manifold absolute pressure sensor
• Camshaft position sensor
• Throttle position sensor
• Ambient temperature sensor
• A/C pressure switch
• Crankshaft position sensor
KNOCK SENSOR
3.5L ENGINE
The 3.5L engine uses two knock sensors located on
the top of the intake manifold which are case
grounded. These sensors provide an input to the
Powertrain Control Module (PCM) on two circuits.
Circuit K42 is the input to the PCM for knock sensor #1 and connects to cavity 24 of the PCM connector.
Circuit K142 is the input to the PCM for knock
sensor #2 and connects to cavity 25 of the PCM connector.
HELPFUL INFORMATION
Refer to Group 14, Fuel System, for knock sensor
operation.
Page 96
8W - 30 - 20 8W - 30 FUEL/IGNITION SYSTEM LH
DESCRIPTION AND OPERATION (Continued)
FUEL INJECTORS
Circuit A14 is connected to the BUS bar in the
Power Distribution Center (PDC), and connects to
battery voltage. The contact side of the Automatic
Shut-Down (ASD) relay connects circuit A14 and
A142. A 20 amp fuse, in cavity B of the PDC, protects
circuits A14 and A142.
The Powertrain Control Module (PCM) controls the
ground path for the coil side of the ASD relay on circuit K51. Circuit K51 connects to cavity 67 of the
PCM.
Circuit A142 supplies voltage for the fuel injectors.
The PCM controls the ground circuit of each injector,
as follows:
• Circuit K11 is the ground circuit for Injector #1.
Circuit K11 connects to cavity 13 of the PCM.
• Circuit K12 is the ground circuit for Injector #2.
Circuit K12 connects to cavity 17 of the PCM.
• Circuit K13 is the ground circuit for Injector #3.
Circuit K13 connects to cavity 7 of the PCM.
• Circuit K14 is the ground circuit for Injector #4.
Circuit K14 connects to cavity 16 of the PCM.
• Circuit K38 is the ground circuit for Injector #5.
Circuit K38 connects to cavity 15 of the PCM.
• Circuit K58 is the ground circuit for Injector #6.
Circuit K58 connects to cavity 14 of the PCM.
HELPFUL INFORMATION
• Circuit A142 splices to supply voltage to the fuel
injectors, ignition coil, ASD relay, and the generator.
The PCM controls the ground circuit for each of the
components powered by circuit A142.
• The injectors operate in sequence. Refer to
Group 14, Fuel System, for system operation.
IGNITION COIL PACK
Circuit A14 is connected to the BUS bar in the
Power Distribution Center (PDC), and connects to
battery voltage. The contact side of the Automatic
Shut Down (ASD) relay connects circuits A14 and
A142. A 20 amp fuse, in cavity B of the PDC, protects
circuits A14 and A142.
Circuit A14 also supplies voltage to the coil side of
the ASD relay. The Powertrain Control Module
(PCM) controls the ground path for the coil side of
the ASD relay on circuit K51. Circuit K51 connects to
cavity 67 of the PCM.
Circuit A142 supplies voltage for the ignition coil
pack. The coil pack consists of three individual coils
molded together. The PCM controls the ground circuit of each coil.
• Circuit K17 is the ground circuit for the ignition
coil that fires spark plugs #1 and #4. Circuit K17
connects to cavity 3 of the PCM.
• Circuit K18 is the ground circuit for the ignition
coil that fires spark plugs #3 and #6. Circuit K18
connects to cavity 2 of the PCM.
• Circuit K19 is the ground circuit for the ignition
coil that fires spark plugs #2 and #5. Circuit K19
connects to cavity 11 of the PCM.
The ground circuit wires for the coils are wrapped
in a helical shield, which is used for noise suppression. Grounding for the shield is provided in two
places. The first is the ground eyelet located on the
engine and the second is at the right headlamp
ground located at the right front frame rail.
HELPFUL INFORMATION
Circuit A142 splices to supply voltage to the fuel
injectors, ASD relay, and the generator. The PCM
controls the ground circuit for each of the components powered by circuit A142.
IDLE AIR CONTROL MOTOR
The Powertrain Control Module (PCM) operates
the idle air control motor through 4 circuits - K39,
K40, K59, and K60. Each circuit connects to separate
cavities in the PCM connector.
• Circuit K39 connects to cavity 57 of the PCM
connector.
• Circuit K40 connects to cavity 48 of the PCM
connector.
• Circuit K59 connects to cavity 58 of the PCM
connector.
• Circuit K60 connects to cavity 49 of the PCM
connector.
HELPFUL INFORMATION
• Refer to group 14 of the Service Manual or the
appropriate Diagnostic Test Procedures Manual for
additional information.
DUTY CYCLE EVAP/PURGE SOLENOID
Circuit F18 supplies battery voltage to the duty
cycle EVAP/Purge solenoid. This circuit is HOT in
the START and RUN position only. It is also spliced
and provides power for the A/C clutch relay, exhaust
gas recirculation solenoid, Manifold Tuning Valve
(MTV) solenoid (3.5L only), and the radiator fan
relays.
Circuit F18 connects to the junction block, cavity
20, and is protected by a 10 amp fuse. Power for the
fuse is supplied on circuit A21 from the ignition
switch. Circuit A1 provides power for the A21 circuit
and is protected by a 20 amp fuse located in cavity A
of the Power Distribution Center (PDC).
The Powertrain Control Module (PCM) controls the
ground path for the solenoid on circuit K52. Circuit
K52 connects to cavity 68 of the PCM connector.
Page 97
LH 8W - 30 FUEL/IGNITION SYSTEM 8W-30-21
DESCRIPTION AND OPERATION (Continued)
HELPFUL INFORMATION
• Refer to Group 14, Fuel System, and Group 25,
Emission Systems, for system operation.
• Check the 10 amp fuse located in cavity 20 of
the junction block.
• Check the 20 amp fuse located in cavity A of the
PDC.
ELECTRONIC EGR TRANSDUCER (EET) SOLENOID
Circuit F18 supplies battery voltage to the duty
cycle Electronic EGR Transducer (EET) solenoid.
This circuit is HOT in the START and RUN position
only. It is also spliced and provides power for the A/C
clutch relay, EVAP/Purge solenoid, Manifold Tuning
Valve (MTV) solenoid (3.5L only), and the radiator
fan relays.
Circuit F18 connects to the junction block, cavity
20, and is protected by a 10 amp fuse. Power for the
fuse is supplied on circuit A21 from the ignition
switch. Circuit A1 provides power for the A21 circuit
and is protected by a 20 amp fuse located in cavity A
of the Power Distribution Center (PDC).
The Powertrain Control Module (PCM) controls the
ground path for the solenoid on circuit K35. Circuit
K35 connects to cavity 40 of the PCM connector.
HELPFUL INFORMATION
• Refer to Group 14, Fuel System, and Group 25,
Emission Systems, for system operation.
• Check the 10 amp fuse located in cavity 20 of
the junction block.
• Check the 20 amp fuse located in cavity A of the
PDC.
MANIFOLD TUNING VALVE SOLENOID
The Manifold Tuning Valve (MTV) solenoid is used
on the 3.5L engine only. It is used to control the
manifold tuning valve located on the intake manifold.
Power for the solenoid is supplied on the F18 circuit. This circuit is protected by a 10 amp fuse
located in cavity 20 of the junction block. The F18
circuit is HOT in the START and RUN position only.
Power for the fuse is supplied on circuit A21 from the
ignition switch.
The A21 circuit receives power from the A1 circuit.
This circuit is protected by a 20 amp fuse located in
cavity A of the Power Distribution Center (PDC).
The Powertrain Control Module (PCM) controls the
ground path for the solenoid on circuit K36. Circuit
K36 connects to cavity 39 of the PCM.
HELPFUL INFORMATION
• Refer to Group 14, Fuel System, of the Service
Manual or the appropriate Diagnostic Test Procedures manual
• Check the 10 amp fuse located in cavity 20 of
the junction block
• Check the 20 amp fuse located in cavity A of the
PDC
PARK/NEUTRAL SWITCH INPUT
When closed, the PARK/NEUTRAL position switch
provides an input to the Powertrain Control Module
(PCM) on circuit T41. The T41 circuit is spliced and
provides a ground path for the engine starter relay,
and an input to the Transmission Control Module
(TCM).
FUEL LEVEL INPUT
Circuit G4 provides an input to the Powertrain
Control Module (PCM). This cirucit connects to cavity
23 of the PCM connector.
The PCM uses this input to monitor the fuel level
in the fuel tank. For additional information, refer to
Group 14, Fuel Systems, in this service manual.
TORQUE MANAGEMENT INPUT
On the 3.5L engine the Powertrain Control Module
(PCM) receives an input from the Transmission Control Module (TCM) on circuit T10. This circuit connects to cavity 63 of the PCM.
Page 98
Page 99
LH 8W - 31 TRANSMISSION CONTROL SYSTEM 8W-31-1
8W-31 TRANSMISSION CONTROL SYSTEM
INDEX
page
SCHEMATICS AND DIAGRAMS ........................................................... 1
DESCRIPTION AND OPERATION .......................................................... 9
Component Page
2-4 Pressure Switch....................8W-31-6
2-4 Solenoid..........................8W-31-7
Autostick Switch ......................8W-31-8
Crankshaft Position Sensor..............8W-31-4
Data Link Connector...................8W-31-8
Engine Starter Motor Relay .............8W-31-5
Fuse 6 (JB) ..........................8W-31-5
Fuse 17 (JB) .......................8W-31-2, 8
Fuse B (PDC) ........................8W-31-2
G102 ...............................8W-31-2
G103 ...............................8W-31-2
G300 ...............................8W-31-8
Ignition Switch .......................8W-31-2
Junction Block....................8W-31-2, 5, 8
Low/Reverse Pressure Switch ............8W-31-6
Low/Reverse Solenoid ..................8W-31-7
Overdrive Pressure Switch ..............8W-31-6
Overdrive Solenoid ....................8W-31-7
Power Distribution Center.........8W-31-2, 5, 6, 7
Powertrain Control Module ............8W-31-4, 8
S110 ...............................8W-31-2
S113 ...............................8W-31-2
S114 ...............................8W-31-5
S116 ...............................8W-31-2
S117............................8W-31-2, 6, 7
S122 ...............................8W-31-8
Component Page
S123 ...............................8W-31-8
S127 ...............................8W-31-4
S128 ...............................8W-31-4
S134 ...............................8W-31-5
S135 ...............................8W-31-4
S137 ...............................8W-31-4
S147 .............................8W-31-3, 5
S154 ...............................8W-31-8
S212 ...............................8W-31-8
S213 ...............................8W-31-8
S214 ...............................8W-31-8
S304 ...............................8W-31-8
S309 ...............................8W-31-5
Speed Proportional Steering Module .......8W-31-4
Throttle Position Sensor ................8W-31-4
Transmission Control
Module................8W-31-2, 3, 4, 5, 6, 7, 8
Transmission Output Shaft Speed Sensor . . .8W-31-3
Transmission Range Switch .............8W-31-5
Transmission Relay ................8W-31-2, 6, 7
Transmission Solenoid And Pressure
Switch Assembly ..................8W-31-6, 7
Turbine Speed Sensor ..................8W-31-3
Underdrive Solenoid ...................8W-31-7
Page 100
8W - 31 - 2 8W-31 TRANSMISSION SYSTEM
LH
ST-RUN-OFF A81
FUSE
17
5A
(8W-12-19)
9
C1
8
A41
16
YL
(8W-10-6)
JUNCTION
BLOCK
(8W-12-2)
BATT A1
(8W-10-5)
IGNITION
SWITCH
1 START
2 RUN
14
3
2
0
0 OFF
3 LOCK
4 ACC
(8W-10-5)
BATT A11
FUSE
B
20A
(8W-10-7)
B
A14
16
RD/WT
(8W-10-4)
POWER
DISTRIBUTION
CENTER
(8W-10-4)
S116
(8W-10-7)
A14
16
RD/WT
9B9A
TRANSMISSION
RELAY
(IN PDC)
9C 9D
Z1
20
BK
40
C110
A41
16
YL
S113
(8W-10-6)
F11
20
RD/WT
11
FUSED
IGN.
(ST-RUN-OFF)
A41
16
YL
8
FUSED
IGN.
(ST)
A14
16
RD/WT
56
FUSED
B (+)
GROUND GROUND
57
Z13
16
BK/RD
T15
20
LG
15
12V
SUPPLY
53
Z14
20
BK/YL
S110
(8W-15-3)
Z1
14
BK
T16
16
RD
G102
(8W-15-3)
T16
16
RD
16 17
TRANS TRANS
CONTROL
RELAY
OUTPUT
T16
16
RD
CONTROL
RELAY
OUTPUT
S117
(8W-10-7)
TRANSMISSION
CONTROL
MODULE
G103
(8W-15-2)
978W-11 LH003102
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