POWER MIRRORS
POWER MIRRORS
Four switches operates the left and right power
mirrors. One switch selects right or left mirror. Each
mirror has two motors; a LEFT/RIGHT motor and a
UP/DOWN motor. The motors switch polarity to al-
low mirror adjustment.
Circuit A7 from fuse 3 in the Power Distribution
Center (PDC) supplies battery voltage to fuse 16 in
the PDC. Fuse 16 in the PDC supplies voltage to the
Ignition Off Draw (IOD) fuse (fuse 9) in the fuse
block. Fuse 9 supplies power to circuit M1. Circuit
M1 connects to circuit P38. Circuit P38 powers the
power mirror switch. Circuit Z1 connects to the
power mirror switch and supplies ground for the
power mirror system.
RIGHT POWER MIRROR OPERATION
In the right position, the power mirror switch sup-
plies power to the right mirror LEFT/RIGHT motor
on circuit P79 when a rightward adjustment is made.
Circuit P77 provides the ground path the for right-
ward adjustments.
When the operator makes leftward adjustment, po-
larity reverses. For leftward adjustments, the switch
supplies battery voltage to the right mirror LEFT/
RIGHT motor on circuit P77. Circuit P79 supplies
ground for leftward adjustments.
During upward adjustments, the switch supplies
voltage to the right mirror UP/DOWN motor on cir-
cuit P79. Circuit P78 supplies ground during upward
adjustments.
For downward adjustments, the polarity is re-
versed, the switch powers the right mirror UP/
DOWN motor on circuit P78. Circuit P79 supplies the
ground path.
LEFT POWER MIRROR OPERATION
In the left position, the power mirror switch sup-
plies power to the left mirror LEFT/RIGHT motor on
circuit P79 when a rightward adjustment is made.
Circuit P81 provides the ground path the for right-
ward adjustments.
When the operator makes leftward adjustment, po-
larity reverses. For leftward adjustments, the switch
supplies battery voltage the left mirror LEFT/RIGHT
motor on circuit P81. Circuit P79 supplies ground for
leftward adjustments.
During upward adjustments, the switch supplies
voltage to the left mirror UP/DOWN motor on circuit
P79. Circuit P80 supplies ground during upward ad-
justments.
For downward adjustments, the polarity is re-
versed, the switch powers the left mirror UP/DOWN
motor on circuit P80. Circuit P79 supplies the ground
path.
HELPFUL INFORMATION
²Check fuse 9 in the fuse block
²Check fuses 3 and 16 in the PDC
DIAGRAM INDEX
Component Page
Fuse 3 (PDC)...........................8W-62-2
Fuse 9 (Fuse Block).......................8W-62-2
Fuse 16 (PDC)..........................8W-62-2
Power Mirrors..........................8W-62-2
Power Mirror Switch......................8W-62-2
J8W-62 POWER MIRRORSÐXJ VEHICLES 8W - 62 - 1
POWER SEAT
POWER SEAT
Battery voltage for the power seat system is sup-
plied by circuit A11, which is HOT at all times. This
circuit connects to the power accessory tap in the
fuse block and the power seat switch. The circuit
breaker in cavity 16 protects circuit A11.
A BUS bar internal to the power seat switch con-
nects the power from circuit A11 to the switches.
Grounding for the seat system is supplied on circuit
Z1.
The motors located under the seat are protected by
circuit breakers wired in with the motors. Each mo-
tor has its own circuit breaker.
When the operator selects the FRONT VERTICAL
UP function, power is passed on the A11 circuit
through the closed contacts in the switch to the S5
circuit. The S5 circuit connects to the motor. Ground
is provided on the S6 circuit back to the switch. A
ground BUS bar internal to the switch then connects
to the Z1 circuit.
For FRONT VERTICAL DOWN function the cir-
cuits are reversed. S6 is the feed and S5 is the
ground.
When the operator selects the SEAT FORWARD
function, power is passed on the A11 circuit through
the closed contacts in the switch to the S3 circuit.
The S3 circuit connects to the motor. Ground is pro-
vided on the S4 circuit back to the switch. A ground
BUS bar internal to the switch then connects to the
Z1 circuit.
For SEAT REARWARD function the circuits are re-
versed. S4 is the feed and S3 is the ground.
When the operator selects the REAR VERTICAL
UP function, power is passed on the A11 circuitthrough the closed contacts in the switch to the S1
circuit. The S1 circuit connects to the motor. Ground
is provided on the S2 circuit back to the switch. A
ground BUS bar internal to the switch then connects
to the Z1 circuit.
For REAR VERTICAL DOWN function the circuits
are reversed. S2 is the feed and S1 is the ground.
When the operator selects the SEAT UP function
power is passed on the A11 circuit through the closed
contacts in the switch to the S1 and S5 circuits. The
S1 circuit connects to the rear UP/DOWN motor, and
S5 connects to the front UP/DOWN motor. Ground is
provided on the S2 and S6 circuits back to the
switch. A ground BUS bar internal to the switch then
connects to the Z1 circuit.
For SEAT DOWN function the circuits are re-
versed. S2 and S6 circuits are the feeds and S1 and
S5 are the grounds.
HELPFUL INFORMATION
²Check the 30 amp circuit breaker in cavity 16 of
the fuse block.
DIAGRAM INDEX
Component Page
Circuit Breaker (Fuse Block Cavity 16)...........8W-63-2
Fuse 3 (Fuse Block).......................8W-63-2
Power Seat............................8W-63-2
Power Seat Switch.......................8W-63-2
J8W-63 POWER SEATÐXJ VEHICLES 8W - 63 - 1
WIRING DIAGRAMS
CONTENTS
page page
8W-01 GENERAL INFORMATIONÐWIRING
DIAGRAMS...................... 8W-01-1
8W-10 FUSE/FUSE BLOCK........... 8W-10-1
8W-11 POWER DISTRIBUTION........ 8W-11-1
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.............. 8W-30-1
8W-31 TRANSMISSION CONTROLS.... 8W-31-1
8W-32 ANTI-LOCK BRAKES........... 8W-32-1
8W-33 VEHICLE SPEED CONTROL..... 8W-33-1
8W-40 INSTRUMENT CLUSTER....... 8W-40-1
8W-41 HORN/CIGAR LIGHTER........ 8W-41-1
8W-42 AIR CONDITIONING/HEATER.... 8W-42-1
8W-44 INTERIOR LIGHTING.......... 8W-44-1
8W-47 AUDIO SYSTEM.............. 8W-47-18W-48 HEATED REAR WINDOW....... 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-54 TRAILER TOW................ 8W-54-1
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-70 SPLICE INFORMATION........ 8W-70-1
8W-80 CONNECTOR PIN OUTS....... 8W-80-1
8W-90 CONNECTOR LOCATIONS...... 8W-90-1
8W-95 SPLICE LOCATIONS........... 8W-95-1
HOW TO USE THIS GROUP
The purpose of this group is to show the electrical
circuits in a clear, simple fashion and to make trou-
bleshooting 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. Wir-
ing which is not part of the circuit represented is ref-
erenced to another page/section, where the complete
circuit is shown. In addition, all switches, compo-
nents, and modules are shown in theat 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 realize 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 pos-
sible, with regard to function only.
The wiring diagram show circuits for all wheel-
bases. If there is a difference in systems or compo-
nents between wheel-bases, an identifier is placed
next to the component.
SECTION IDENTIFICATION
Sections in Group 8W are organized by sub-sys-
tems. The sections contain circuit operation descrip-
tions, helpful information, and system diagrams. The
intention is to organize information by system, con-
sistently from year to year.
CONNECTOR LOCATIONS
Section 8W-90 contains Connector Location illus-
trations. The illustrations contain the connector
number and component identification. Connector Lo-
cation charts in Section 8W-90 reference the illustra-
tion number for components and connectors.
Section 8W-80 shows each connector and the cir-
cuits involved with that connector. The connectors
are identified using the 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.
JWIRING DIAGRAMSÐXJ-RHD 8W - 1 - 1
FUSE/FUSE BLOCK
GENERAL INFORMATION
This section covers the Fuse Block and all circuits
involved with it. For additional information on sys-
tem operation, refer to the appropriate section of the
wiring diagrams.
DIAGRAM INDEX
Component Page
ABS Control Module......................8W-10-4
Chime/Buzzer Module..................8W-10-5, 7, 8
Fuse Block...........................8W-10-2, 3
Fuse 1 (Fuse Block)......................8W-10-10
Fuse 3 (Fuse Block)......................8W-10-11
Fuse 3 (PDC)......................8W-10-6, 10, 12
Fuse 4 (Fuse Block)......................8W-10-11
Fuse 5 (Fuse Block).......................8W-10-7
Fuse 5 (PDC).........................8W-10-5, 8
Fuse 6 (Fuse Block).......................8W-10-7
Fuse 6 (PDC)......................8W-10-4, 6, 11
Fuse 7 (Fuse Block)......................8W-10-12
Fuse 7 (PDC)...........................8W-10-8
Fuse 8 (Fuse Block)......................8W-10-12
Fuse 9 (Fuse Block).......................8W-10-5
Fuse 10 (Fuse Block)......................8W-10-5
Fuse 11 (PDC)..........................8W-10-6
Fuse 12 (Fuse Block)......................8W-10-4
Fuse 12 (PDC)..........................8W-10-6
Fuse 13 (Fuse Block)......................8W-10-4
Fuse 14 (Fuse Block)......................8W-10-4
Fuse 18 (Fuse Block)......................8W-10-4
Fuse 19 (Fuse Block)......................8W-10-4
Fuse 20 (Fuse Block).....................8W-10-11
Fuse 26 (Fuse Block)......................8W-10-7
Headlamp Delay Relay.....................8W-10-5
Headlamp Switch.......................8W-10-5, 8
Headlamp Delay Module....................8W-10-7
Heated Rear Window......................8W-10-8
Ignition Switch......................8W-10-4, 6, 11
In-Line Circuit Breaker (Stop Lamp Relay)........8W-10-10
Instrument Cluster......................8W-10-7, 9
Overhead Console......................8W-10-5, 7
Powertrain Control Module..................8W-10-6
J8W-10 FUSE/FUSE BLOCKÐXJ-RHD 8W - 10 - 1
POWER DISTRIBUTION
GENERAL INFORMATION
This section covers the Power Distribution Center
(PDC) and all circuits involved with it. For additional
information on system operation, refer to the appro-
priate section of the wiring diagrams.
DIAGRAM INDEX
Component Page
A/C Compressor Clutch Relay..............8W-11-3, 11
ABS Control Module.....................8W-11-6, 7
ABS Power Relay......................8W-11-3, 6
ABS Pump Motor Relay..................8W-11-3, 7
Automatic Shut Down Relay................8W-11-3, 9
Chime/Buzzer Module...................8W-11-5, 10
Dimming Relay.........................8W-11-16
Engine Starter Motor Relay................8W-11-3, 4
Fuel Pump Relay.......................8W-11-3, 8
Fuse 1 (Fuse Block)......................8W-11-13
Fuse 1 (PDC)..........................8W-11-13
Fuse 2 (Fuse Block).......................8W-11-4
Fuse 2 (PDC)...........................8W-11-8
Fuse 3 (PDC)..........................8W-11-12
Fuse 4 (PDC)..........................8W-11-14
Fuse 5 (PDC)...........................8W-11-5
Fuse 6 (PDC)....................8W-11-4, 7, 10, 14
Fuse 7 (PDC)...........................8W-11-4
Fuse 8 (Fuse Block).......................8W-11-7
Fuse 8 (PDC)...........................8W-11-7
Fuse 9 (Fuse Block).......................8W-11-5
Fuse 9 (PDC)..........................8W-11-13
Fuse 10 (Fuse Block)......................8W-11-5
Fuse 11 (PDC).........................8W-11-10
Fuse 12 (PDC).........................8W-11-14Component Page
Fuse 13 (PDC)..........................8W-11-4
Fuse 14 (PDC)..........................8W-11-8
Fuse 15 (PDC)..........................8W-11-8
Fuse 16 (PDC).........................8W-11-12
Fuse 26 (Fuse Block).....................8W-11-10
Headlamp Delay Module...................8W-11-10
Headlamp Delay Relay.....................8W-11-5
Headlamp Relay.........................8W-11-16
Headlamp Switch.........................8W-11-5
Heated Rear Window Relay.................8W-11-17
Horn Relay............................8W-11-16
Ignition Switch......................8W-11-4, 7, 14
In-Line Circuit Breaker (Stop Lamp Relay)........8W-11-13
LCD Illumination Relay....................8W-11-16
Overhead Console.....................8W-11-5, 10
Power Antenna Relay.....................8W-11-17
Power Distribution Center...................8W-11-2
Power Door Unlock Relay..................8W-11-15
Power Door Lock Relay...................8W-11-15
Powertrain Control Module............8W-11-4, 8, 9, 11
Radiator Fan Control Relay................8W-11-3, 11
Relay Center...........................8W-11-15
Telltale Connector (Instrument Cluster)........8W-11-6, 10
Transmission Control Module..............8W-11-8, 14
Turn Signal Relay.......................8W-11-17
J8W-11 POWER DISTRIBUTIONÐXJ-RHD 8W - 11 - 1
CHARGING SYSTEM
CHARGING SYSTEM
The charging system is an integral part of the bat-
tery and starting systems. Because all these systems
work in conjunction, diagnose and test them together.
Circuit A11 connects to the generator output termi-
nal and splices to fuse 1 and fuse 9 in the Power Dis-
tribution Center (PDC). Circuit A0 connects the
battery to the PDC. Circuit Z0 provides ground for
the generator.
When the ignition switch is in either the START or
RUN positions, it connects circuit A1 from fuse 6 in
the PDC to circuit A21. Circuit A21 splices to supply
current to the coil side of the Automatic Shut Down
(ASD) relay. The Powertrain Control Module (PCM)
provides ground for the relay on circuit K51. Circuit
K51 connects to cavity 51 of the PCM.
When the PCM grounds the ASD relay, contacts in-
side the relay close and connect circuit A18 from fuse
14 in the PDC to circuit A142. Circuit A142 splices to
the generator field terminal.
The PCM has an internal voltage regulator that
controls generator output. The PCM controls the gen-
erator field on circuit K20. Circuit K20 connects to
PCM cavity 20.When the engine operates and there is current in
the generator field, the generator produces a B+ volt-
age. The generator supplies B+ voltage to the battery
through the A11 and A0 circuits.
HELPFUL INFORMATION
²Circuit A14 from fuse 2 in the PDC supplies volt-
age to PDC fuse 14.
²The ignition switch also connects circuit A1 with
circuits A41, A38, and A48.
²Circuit A21 also powers the coil side of the fuel
pump relay.
²The ASD relay supplies battery voltage for the fuel
injectors, ignition coil, and the heated oxygen sensor.
The fuel pump relay powers the fuel pump module.
²Circuit K51 also provides ground for the coil side
of the fuel pump relay.
DIAGRAM INDEX
Component Page
Battery...............................8W-20-2
PDC Fuse 1............................8W-20-2
PDC Fuse 9............................8W-20-2
Generator..............................8W-20-2
Powertrain Control Module..................8W-20-2
J8W-20 CHARGING SYSTEMÐXJ-RHD 8W - 20 - 1
STARTING SYSTEM
STARTING SYSTEM
Circuit A0 from the battery is double crimped at
the positive battery post. One branch of circuit A0
(battery positive cable) connects to the engine starter
motor. The other A0 branch supplies voltage to the
bus bar in the power distribution center (PDC).
Fuse 7 in the PDC supplies battery voltage to the
contact side of the engine starter motor relay on cir-
cuit A4. When the coil side of the engine starter mo-
tor relay energizes, the contacts close and connect
circuit A4 to circuit T40. Circuit T40 supplies battery
voltage to the starter motor solenoid.
The ignition switch supplies battery voltage to the
coil side of the starter motor relay on circuit A41
when the key is moved to the START position.
Ground for the coil side of the starter motor relay is
supplied by the case grounded Park/Neutral position
switch. Circuit T41 connects the coil side of the relay
to the Park/Neutral position switch.
When the starter motor relay energizes and the
contacts close, circuit T40 supplies battery voltage to
the starter motor solenoid. Circuit A0 from the bat-
tery supplies voltage to the starter motor when the
solenoid energizes.HELPFUL INFORMATION
²The Park/Neutral switch closes when the trans-
mission is in either the PARK or NEUTRAL posi-
tions.
²Circuit T41 also connects to cavity 30 of the Pow-
ertrain Control Module (PCM). This input tells the
PCM the operator is starting the vehicle.
²Circuit A4 is double crimped at the contact side of
the starter motor relay. The A4 branch leaving the
relay powers fuse 13 in the PDC.
DIAGRAM INDEX
Component Page
Engine Starter Motor......................8W-21-2
Engine Starter Motor Relay..................8W-21-2
Ignition Switch..........................8W-21-2
PDC Fuse 6............................8W-21-2
PDC Fuse 7............................8W-21-2
PDC Fuse 13...........................8W-21-2
Powertrain Control Module..................8W-21-2
Park/Neutral Position Switch.................8W-21-2
Transmission Control Module.................8W-21-2
J8W-21 STARTING SYSTEMÐXJ-RHD 8W - 21 - 1
FUEL/IGNITION
INDEX
page page
Automatic Shut Down (ASD) Relay............. 1
Battery Feed.............................. 1
Brake Switch Input......................... 5
Camshaft Position Sensor.................... 3
Crankshaft Position Sensor................... 3
Data Link Connector........................ 4
Diagram Index............................ 5
Engine Coolant Temperature Sensor............ 3
Fuel Injectors............................. 1
Fuel Pump Module......................... 2
Fuel Pump Relay.......................... 2
Heated Oxygen Sensor...................... 3Idle Air Control (IAC) Motor................... 2
Ignition Coil.............................. 2
Ignition Feed............................. 1
Ignition Switch............................ 1
Intake Air Temperature Sensor................ 4
Malfunction Indicator Lamp (MIL)............... 4
Manifold Absolute Pressure Sensor............. 4
Park/Neutral Position Switch.................. 4
Power (Device) Ground...................... 5
Tachometer Signal......................... 4
Throttle Position Sensor..................... 4
Vehicle Speed Sensor....................... 2
IGNITION SWITCH
Circuit A1 from fuse 11 in the power distribution
center (PDC), supplies battery voltage to the ignition
switch. Depending upon position, the ignition switch
powers circuits A21, A38, A41, or A48.
START POSITION
In the START position, the ignition switch connects
circuit A1 to circuit A41. Circuit A41 connects to the
coil side of the starter motor relay.
Additionally in the START position, the case
grounded ignition switch provides ground for the
brake lamp switch and the warning lamps in the in-
strument cluster.
START OR RUN POSITION
In the START or RUN position, the ignition switch
connects circuit A1 to circuit A21. Circuit A21 splices
to power the coil side of the Automatic Shut Down
(ASD) relay and the fuel pump relay.
RUN (ONLY) POSITION
When the ignition switch is in the RUN position, it
connects circuit A1 to circuit A38. Circuit A38 feeds
circuit L39.
ACCESSORY OR RUN POSITIONS
In the ACCESSORY or RUN positions, the ignition
switch connects circuit A1 to circuit A48. Circuit A48
connects to a bus bar in the fuse block.
AUTOMATIC SHUT DOWN (ASD) RELAY
When the ignition switch is in either the START or
RUN positions, it connects circuit A1 from fuse 6 in
the Power Distribution Center (PDC) to circuit A21.
Circuit A21 supplies battery voltage to the coil side of
the Automatic Shut Down (ASD) relay. The Power-train Control Module (PCM) provides ground for the
relay on circuit K51. Circuit K51 connects to cavity
51 of the PCM.
When the PCM grounds the ASD relay, contacts in-
side the relay close and connect circuit A18 from fuse
14 in the PDC to circuit A142. Circuit A142 splices to
the generator field terminal, fuel injectors, and igni-
tion coil. Circuit A142 also connects to cavity 57 of
the PCM.
HELPFUL INFORMATION
²Along with supplying voltage to the coil side of the
ASD relay, circuit A21 also supplies voltage to the
coil side of the fuel pump relay.
²Circuit A21 also connects to cavity 9 of the PCM.
BATTERY FEED
Circuit A14 from fuse 2 in the power distribution
center supplies battery voltage to cavity 3 of the
Powertrain Control Module (PCM).
HELPFUL INFORMATION
Circuit A14 also supplies power to the contact sides
of the fuel pump relay and fuse F2 in the PDC. Fuse
F2 powers circuit A18 which supplies voltage to the
contact side of the automatic shut down relay.
IGNITION FEED
When the ignition switch is in either the START or
RUN positions, it connects circuit A1 from fuse 6 in
the Power Distribution Center (PDC) to circuit A21.
Circuit A21 also connects to cavity 9 of the PCM and
provides the ignition input.
FUEL INJECTORS
When the Automatic Shut Down (ASD) relay con-
tacts close, they connect circuits A18 and A142. Cir-
J8W-30 FUEL/IGNITIONÐXJ-RHD 8W - 30 - 1