
DIAGNOSIS AND TESTING
SYSTEM TEST
Electrically heated rear window defogger or the
heated windshield wiper deicer operation can be
checked on the vehicle in the following manner:
(1) Turn the ignition switch to the ON position.
(2) Using a ammeter on the battery, turn the rear
defogger control switch to the ON position, a distinct
increase in amperage draw should be noted.
(3) The rear window defogger or the heated wind-
shield wiper deicer operation can be checked by feel-
ing the glass. A distinct difference in temperature
between the grid lines and adjacent clear glass can
be detected in 3 to 4 minutes of operation.
(4) Using a DC voltmeter (Fig. 4) contact terminal
B with the negative lead, and terminal A with the
positive lead. The voltmeter should read 10-14 volts.
(5) Indicator light illumination means that there is
power available at the switch only and does not nec-
essarily verify system operation.
(6) If turning the defogger switch ON, no distinct
current draw on the ammeter the problem should be
isolated in the following manner:
²Confirm that ignition switch is ON.
²Ensure that the heated rear window or the
heated windshield wiper deicer feed pigtail is con-
nected to the wiring harness and that the ground
pigtail is in fact grounded.
²Ensure that the proper fuse in the Junction
Block is OK.(7) When the above steps have been completed and
the system is still inoperative, one or more of the fol-
lowing is defective:
²HVAC switch
²Rear window defogger relay in the relay bank.
²Check for loose connector or a wire pushed out
of connector.
²Rear window or the windshield grid lines (all
grid lines would have to be broken, or one of the feed
pigtails not connected to the bus bar, for no ammeter
deflection).
(8) If turning the switch ON produces severe volt-
meter deflection, the circuit should be closely checked
for a shorting condition.
(9) If the system operation has been verified but
indicator LED does not light, replace switch.
(10) For detailed wiring information, refer to
Group 8W, Wiring Diagrams.
GRID LINE TEST
The horizontal grid lines and vertical bus bar lines
printed and baked on inside surface of the window
glass makes up an electrical parallel circuit. The
electrically conductive lines are composed of a silver
ceramic material which when baked on glass
becomes bonded to the glass and is highly resistant
to abrasion. It is possible, however, that a break may
exist or occur in an individual grid line resulting in
no current flow through the line. To detect breaks in
grid lines, the following procedure is required:
(1) Turn ignition and rear window defogger control
switch ON. The indicator light should come on.
(2) Using a DC voltmeter with 0-15 volt range,
contact vertical bus bar connecting grid lines on pas-
senger side of vehicle at terminal A with negative
lead of voltmeter (Fig. 4). With positive lead of volt-
meter, contact vertical bus bar on driver side of vehi-
cle at terminal B. The voltmeter should read 10-14
volts.
Fig. 3 HVAC Rear Window Defogger Switch
Fig. 4 Grid Line Test
8N - 2 ELECTRICALLY HEATED SYSTEMSNS
DIAGNOSIS AND TESTING (Continued)

WIRING DIAGRAMS
CONTENTS
page page
AIR CONDITIONING-HEATER.......... 8W-42-1
AIRBAG SYSTEM................... 8W-43-1
ANTI-LOCK BRAKES................. 8W-35-1
AUDIO SYSTEM.................... 8W-47-1
BODY CONTROL MODULE............ 8W-45-1
CHARGING SYSTEM................. 8W-20-1
COMPONENT INDEX................. 8W-02-1
CONNECTOR/GROUND LOCATIONS..... 8W-90-1
CONNECTOR PIN-OUTS.............. 8W-80-1
FRONT LIGHTING................... 8W-50-1
FUEL/IGNITION SYSTEM............. 8W-30-1
GENERAL INFORMATION............. 8W-01-1
GROUND DISTRIBUTION............. 8W-15-1
HORN/CIGAR LIGHTER/POWER OUTLET . 8W-41-1
INSTRUMENT CLUSTER.............. 8W-40-1
INTERIOR LIGHTING................. 8W-44-1
JUNCTION BLOCK................... 8W-12-1
MESSAGE CENTER.................. 8W-46-1OVERHEAD CONSOLE................ 8W-49-1
POWER DISTRIBUTION.............. 8W-10-1
POWER DOOR LOCKS............... 8W-61-1
POWER MIRRORS.................. 8W-62-1
POWER SEAT...................... 8W-63-1
POWER WINDOWS.................. 8W-60-1
REAR LIGHTING.................... 8W-51-1
SPLICE INFORMATION............... 8W-70-1
SPLICE LOCATIONS................. 8W-95-1
STARTING SYSTEM................. 8W-21-1
TRAILER TOW...................... 8W-54-1
TRANSMISSION CONTROL SYSTEM.... 8W-31-1
TURN SIGNALS..................... 8W-52-1
VEHICLE SPEED CONTROL........... 8W-33-1
VEHICLE THEFT SECURITY SYSTEM.... 8W-39-1
WINDOW DEFOGGERS............... 8W-48-1
WIPERS........................... 8W-53-1
NS/GSWIRING DIAGRAMS 8W - 1

8W-02 COMPONENT INDEX
Component Page
2-4 Pressure Switch.....................8W-31
2-4 Solenoid...........................8W-31
A/C Compressor Clutch..................8W-42
A/C Compressor Clutch Relay...........8W-10, 42
A/C Heater Control.....................8W-42
A/C On Indicator.......................8W-42
A/C Pressure Transducer..............8W-30, 42
A/C Switch............................8W-42
A/C Zone Door Actuator..................8W-42
ABS Warning Lamp..................8W-35, 46
Accelerator Pedal Position Sensor..........8W-30
Airbag Control Module...................8W-43
Airbag Indicator Lamp...................8W-43
Airbag Warning Lamp...................8W-46
All Wheel Drive Solenoid.................8W-31
Ambient Air Temperature Sensor...........8W-49
Ash Receiver Lamp.....................8W-44
Automatic Day/Night Mirror..............8W-44
Automatic Shut Down Relay............8W-10, 30
Splice Information......................8W-70
Back-Up Lamp.........................8W-51
Back-Up Switch.....................8W-44, 51
Battery...............................8W-20
Blend Door Actuator.....................8W-42
Body Control Module....................8W-45
Brake Pressure Switch...................8W-46
Brake Warning Lamp....................8W-46
Camshaft Position Sensor................8W-30
Center Dome Lamp.....................8W-44
Center High Mounted Stop Lamp..........8W-51
Cigar/Accessory Relay...................8W-41
Clockspring.......8W-10, 15, 30, 33, 39, 40, 41, 43
Cluster Illumination Lamps...............8W-40
Clutch Interlock Switch...............8W-12, 21
Clutch Interlock Switch Jumper......8W-12, 21, 31
Clutch Switch.......................8W-30, 33
Combination Flasher/DRL Module. . . .8W-50, 51, 52
Combination Relays.....................8W-54
Compass/Mini-Trip Computer..............8W-49
Control Sleeve Sensor....................8W-30
Controller Anti-Lock Brake...............8W-35
Courtesy Lamp Relay...........8W-10, 12, 44, 50
Crank Case Heater......................8W-30
Crankshaft Position Sensor...............8W-30
Cruise Indicator Lamp...................8W-40
Data Link Connector....................8W-30
Diesel Power Relay...................8W-10, 30
Dome Lamp Switch.....................8W-50
Door Ajar Indicator Lamp................8W-40
Door Ajar Switches................8W-39, 40, 44
Door Lock Relay........................8W-61
Speakers..............................8W-47Component Page
Door Unlock Relay......................8W-61
Oxygen Sensors........................8W-30
Door Ajar Switches.............8W-39, 40, 44, 45
Door Arm/Disarm Switches.............8W-39, 61
Door Courtesy Lamps....................8W-44
Door Lock Motors.......................8W-61
Door Lock Switches.....................8W-61
Door Unlock Relays.....................8W-61
Heated Seat Backs......................8W-63
Heated Seat Cushions...................8W-63
Heated Seat Modules....................8W-63
Heated Seat Switches....................8W-63
Power Mirrors.........................8W-62
Power Seat Switches....................8W-63
Power Window Switches..................8W-60
Seat Motors...........................8W-63
Window Motors........................8W-60
Radiator Fans.........................8W-42
Dump Solenoid.........................8W-33
EGR Solenoid..........................8W-30
Electric Wiper De-Icer...................8W-48
Electronic PRNDL Indicator...............8W-40
Engine Coolant Temperature Gauge.........8W-40
Engine Coolant Temperature Lamp.........8W-46
Engine Coolant Temperature Sensor........8W-30
Engine Oil Pressure Switch...............8W-46
Engine Speed Sensor....................8W-30
Engine Starter Motor....................8W-21
Engine Starter Motor Relay............8W-10, 21
Evap Leak Detection Pump...............8W-30
Evap/Purge Solenoid....................8W-30
Evaporator Temperature Sensor............8W-42
Express Down Module...................8W-60
Flexible Fuel Sensor.....................8W-30
Fog Lamps............................8W-50
Fog Lamp Relay........................8W-50
Front Blower Motor.....................8W-42
Front Blower Motor Relay.............8W-10, 42
Front Blower Motor Resistor Block.........8W-42
Front Cigar Lighter/Power Outlet..........8W-41
Front Reading Lamp Defeat Switch.........8W-44
Front Reading Lamps/Switch..............8W-44
Front Washer Motor.....................8W-53
Front Wiper Switch.....................8W-53
Fuel Gauge............................8W-40
Fuel Heater...........................8W-30
Fuel Heater Relay...................8W-10, 30
Fuel Injectors..........................8W-30
Fuel Pump Module......................8W-30
Fuel Pump Relay....................8W-10, 30
Fuel Quantity Actuator..................8W-30
Fuel Shutdown Solenoid..................8W-30
NS/GS8W - 02 COMPONENT INDEX 8W - 02 - 1

Component Page
Fuel Tank Module...................8W-30, 45
Fuel Temperature Sensor.................8W-30
Fuel Timing Solenoid....................8W-30
Fuses (JB)............................8W-12
Fuses (PDC)...........................8W-10
Fusible Link.....................8W-20, 21, 63
Fusible Link A0........................8W-30
Fusible Link A11.......................8W-10
Fusible Link A54.......................8W-10
Grounds..............................8W-15
Generator.............................8W-20
Glove Box Lamp........................8W-44
Glow Plug Lamp.....................8W-30, 46
Glow Plugs............................8W-30
Glow Plug Relay........................8W-30
Headlamps............................8W-50
Headlamp Dimmer Switch..........8W-10, 46, 50
Headlamp Leveling Motors...............8W-50
Headlamp Switch.......................8W-50
Headlamp Washer......................8W-53
High Beam Indicator....................8W-46
High Beam Relay....................8W-10, 50
Headlamps............................8W-50
Horns................................8W-41
Hood Ajar Switch....................8W-39, 44
Horn Relay.........................8W-39, 41
Horn Switch.....................8W-10, 39, 41
HVAC Control.........................8W-42
Idle Air Control Motor...................8W-30
Ignition Coil Pack.......................8W-30
Ignition Switch.........................8W-10
Instrument Cluster.....................8W-40
Intake Air Temperature Sensor............8W-30
Intake Air Temperature/Manifold Absolute
Pressure Sensor.....................8W-30
Interior Lamps On Switch................8W-44
Junction Block.........................8W-12
Key-In Halo Lamp......................8W-44
Knock Sensor..........................8W-30
Lamp Assemblies.......................8W-51
License Lamp..........................8W-51
Liftgate Ajar Indicator Lamp..............8W-40
Liftgate Ajar Switch...............8W-39, 40, 44
Liftgate Arm/Disarm Switch............8W-39, 61
Liftgate Flood Lamps....................8W-44
Liftgate Lock Motor.....................8W-61
Low Beam Relay.....................8W-10, 50
Low Coolant Level Switch................8W-45
Low Fuel Warning Indicator Lamp..........8W-40
Low Oil Pressure Lamp..................8W-46
Low Washer Fluid Level Indicator Lamp.....8W-40
Low Washer Fluid Switch.................8W-53
Low/Reverse Pressure Switch..............8W-31
Low/Reverse Solenoid....................8W-31Component Page
Manifold Absolute Pressure Sensor.........8W-30
Memory Power Seat Switch...............8W-63
Seat Sensors...........................8W-63
Memory Seat/Mirror Module...........8W-62, 63
Memory Set Switch..................8W-62, 63
Message Center........................8W-46
Mid Reading Lamps.....................8W-44
Mode Door Actuator.....................8W-42
Name Brand Speaker Relay...............8W-47
Needle Movement Sensor.................8W-30
Odometer.............................8W-40
Output Shaft Speed Sensor...............8W-31
Overdrive Pressure Switch................8W-31
Overdrive Solenoid......................8W-31
Overhead Console.......................8W-49
Park Brake Switch...................8W-46, 50
Park Lamp Relay.........8W-10, 12, 44, 50, 51, 54
Park/Turn Signal Lamps.................8W-50
Airbag Squibs..........................8W-43
Power Distribution Center................8W-10
Power Folding Mirror Switch..............8W-62
Power Mirror Fold Relay.................8W-62
Power Mirror Switch....................8W-62
Power Mirror Unfold Relay...............8W-62
Power Seat Circuit Breaker............8W-62, 63
Powertrain Control Module...............8W-30
PTCs (JB).............................8W-12
Radiator Fan Disconnect.................8W-42
Radiator Fan Relays.....................8W-42
Radio................................8W-47
Radio Choke...........................8W-47
Reading Lamps........................8W-44
Rear A/C Heater Unit....................8W-42
Rear Blower Control Switches.............8W-42
Rear Cigar Lighter/Power Outlet...........8W-41
Rear Defogger On Indicator...............8W-42
Rear Dome Lamp.......................8W-44
Rear Fog Lamp.........................8W-51
Rear Fog Lamp Indicator.................8W-51
Rear Washer Motor.....................8W-53
Rear Washer Switch..................8W-42, 53
Rear Window Defogger...................8W-48
Rear Window Defogger Relay..............8W-48
Rear Window Defogger Switch..........8W-42, 48
Rear Wiper Delay On Indicator.........8W-42, 53
Rear Wiper Delay Switch..............8W-42, 53
Rear Wiper Motor.......................8W-53
Rear Wiper On Indicator..............8W-42, 53
Rear Wiper On Switch................8W-42, 53
Recirculate Mode Indicator................8W-42
Recirculate Mode Switch.................8W-42
Recirculation Door Actuator...............8W-42
Remote Keyless Entry Module.............8W-61
Repeater Lamps.....................8W-51, 52
8W - 02 - 2 8W - 02 COMPONENT INDEXNS/GS

8W-10 POWER DISTRIBUTION
Component Page
A/C Compressor Clutch........................8W-10-29
A/C Compressor Clutch Relay................8W-10-10, 25, 29
Airbag Control Module........................8W-10-35
Automatic Shut Down Relay....................8W-10-9, 23
Battery.............................8W-10-8, 27, 28
Body Control Module...........8W-10-11, 14, 16, 17, 19, 21, 30, 32
BS15..................................8W-10-33
BS16..................................8W-10-34
BS19..................................8W-10-30
BS33..................................8W-10-25
Center Dome Lamp..........................8W-10-21
Cigar/Accessory Relay......................8W-10-10, 31
Clockspring..............................8W-10-30
Combination Flasher/DRL Module................8W-10-29, 32
Controller Anti-Lock Brake....................8W-10-15, 29
Courtesy Lamp Relay.........................8W-10-21
Crank Case Heater..........................8W-10-27
CS01..................................8W-10-21
CS02..................................8W-10-20
CS1 ..................................8W-10-21
Data Link Connector.........................8W-10-11
Diesel Power Relay.......................8W-10-9, 25, 29
Door Lock Relay............................8W-10-13
Door Unlock Relay..........................8W-10-13
Downstream Heated Oxygen Sensor.................8W-10-23
Driver Door Courtesy Lamp.....................8W-10-21
Driver Door Unlock Relay......................8W-10-13
Driver Power Mirror.......................8W-10-12, 22
EGR Solenoid.............................8W-10-25
Engine Starter Motor.......................8W-10-8, 16
Engine Starter Motor Relay....................8W-10-8, 16
ES01................................8W-10-27, 28
ES06................................8W-10-25, 29
ES07..................................8W-10-29
ES09..................................8W-10-8
ES11 ................................8W-10-8, 28
ES12..................................8W-10-23
ES26..................................8W-10-8
ES28..................................8W-10-8
ES29................................8W-10-25, 29
ES40..................................8W-10-27
ES99..................................8W-10-24
Fog Lamp Relay............................8W-10-33
Front Blower Motor..........................8W-10-18
Front Blower Motor Relay.....................8W-10-8, 18
Front Cigar Lighter/Power Outlet..................8W-10-31
Front Reading Lamps/Switch.....................8W-10-20
Front Wiper Switch..........................8W-10-19
FS01..................................8W-10-24
FS03..................................8W-10-23
Fuel Heater..............................8W-10-27
Fuel Heater Relay.........................8W-10-9, 27
Fuel Injector No. 1........................8W-10-23, 24
Fuel Injector No. 2........................8W-10-23, 24
Fuel Injector No. 3........................8W-10-23, 24
Fuel Injector No. 4........................8W-10-23, 24
Fuel Injector No. 5..........................8W-10-24
Fuel Injector No. 6..........................8W-10-24
Fuel Pump Module..........................8W-10-25
Fuel Pump Relay..........................8W-10-9, 26
Fuel Tank Module...........................8W-10-26
Fuse 1 (JB)..............................8W-10-17
Fuse 1 (PDC)...........................8W-10-14, 35
Fuse 2 (JB)............................8W-10-11, 16
Fuse 2 (PDC).............................8W-10-35
Fuse 3 (JB)..............................8W-10-17
Fuse 4 (JB)..............................8W-10-17
Fuse 4 (PDC).......................8W-10-10, 32, 33, 34
Fuse 5 (JB)..............................8W-10-17
Fuse 5 (PDC).......................8W-10-10, 32, 33, 34
Fuse 6 (JB)..............................8W-10-16
Fuse 6 (PDC).......................8W-10-10, 32, 33, 34
Fuse 7 (JB)..............................8W-10-12
Fuse 7 (PDC).......................8W-10-10, 32, 33, 34
Fuse 8 (JB)..............................8W-10-16
Fuse 8 (PDC)...........................8W-10-10, 31
Fuse 9 (JB)..............................8W-10-16
Fuse 9 (PDC)...........................8W-10-10, 30
Fuse 10 (JB)..............................8W-10-16
Fuse 10 (PDC)...........................8W-10-10, 29
Fuse 11 (JB)..............................8W-10-14
Fuse 11 (PDC)...........................8W-10-10, 29
Fuse 12 (JB)............................8W-10-14, 18
Fuse 12 (PDC)...........................8W-10-10, 29
Fuse 13 (PDC)...........................8W-10-10, 29
Fuse 15 (PDC)...........................8W-10-9, 28
Fuse 16 (JB)..............................8W-10-27
Fuse 16 (PDC)...........................8W-10-9, 26
Fuse 17 (PDC).......................8W-10-9, 23, 25, 29
Fuse 18 (PDC)...........................8W-10-9, 20Component Page
Fuse 19 (PDC)...........................8W-10-8, 19
Fuse 20 (PDC)...........................8W-10-8, 19
Fuse 21 (PDC)...........................8W-10-8, 18
Fuse 22 (PDC)...........................8W-10-8, 17
Fuse 23 (PDC)...........................8W-10-8, 16
Fuse 24 (PDC)...........................8W-10-8, 15
Fuse 25 (PDC)...........................8W-10-8, 15
Fuse 26 (PDC)...........................8W-10-8, 13
Fuse 27 (PDC)...........................8W-10-8, 12
Fuse 28 (PDC)...........................8W-10-9, 11
Fusible Link A11............................8W-10-8
Fusible Link A54............................8W-10-8
G100................................8W-10-27, 28
G103................................8W-10-27, 28
G200................................8W-10-14, 32
G300............................8W-10-14, 18, 19, 31
Generator............................8W-10-8, 23, 25
Glove Box Lamp............................8W-10-20
Glow Plug Relay..........................8W-10-8, 25
Headlamp Dimmer Switch......................8W-10-32
Headlamp Switch.........................8W-10-21, 34
High Beam Relay.....................8W-10-10, 32, 33, 34
High Note Horn............................8W-10-30
Horn Relay............................8W-10-10, 30
Horn Switch..............................8W-10-30
HS6D S02...............................8W-10-13
Ignition Coil Pack...........................8W-10-23
Ignition Switch........................8W-10-11, 14, 16
Instrument Cluster........................8W-10-11, 14
Junction Block..........8W-10-11, 12, 13, 14, 16, 17, 18, 20, 21, 22,
26, 27, 29, 30, 31, 32, 35
Key-In Halo Lamp..........................8W-10-21
Left Headlamp..........................8W-10-33, 34
Left Headlamp Leveling Motor....................8W-10-34
Left High Headlamp.........................8W-10-33
Left Liftgate Flood Lamp.......................8W-10-21
Left Mid Reading Lamp.....................8W-10-20, 21
Left Rear Reading Lamp.....................8W-10-20, 21
Left Visor/Vanity Mirror Lamps...................8W-10-20
Low Beam Relay.....................8W-10-10, 32, 33, 34
Low Note Horn............................8W-10-30
Memory Seat/Mirror Module.....................8W-10-11
Message Center......................8W-10-11, 14, 33, 34
Name Brand Speaker Relay.....................8W-10-16
Park Lamp Relay..........................8W-10-8, 17
Passenger Door Courtesy Lamp...................8W-10-21
Passenger Power Mirror.....................8W-10-12, 22
Power Distribution Center .8W-10-8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35
Power Mirror Fold Relay.......................8W-10-22
Power Mirror Switch.........................8W-10-20
Power Mirror Unfold Relay....................8W-10-21, 22
Power Seat Circuit Breaker.....................8W-10-13
Powertrain Control Module............8W-10-16, 23, 25, 26, 27, 29
PTC 1 (JB)......................8W-10-16, 26, 27, 29, 35
PTC 3 (JB)..............................8W-10-13
PTC 7 (JB)............................8W-10-16, 31
PTC 8 (JB)..............................8W-10-16
PTC 9 (JB)..............................8W-10-16
Radiator Fan Relay..........................8W-10-15
Radiator Fan Relay No. 1.......................8W-10-25
Radiator Fan Relay No. 2.....................8W-10-15, 25
Radiator Fan Relay No. 3.....................8W-10-19, 25
Radio..................................8W-10-11
Rear Cigar Lighter/Power Outlet...................8W-10-31
Rear Dome Lamp...........................8W-10-21
Rear Window Defogger........................8W-10-12
Rear Window Defogger Relay.....................8W-10-12
Remote Keyless Entry Module....................8W-10-11
Right Headlamp..........................8W-10-33, 34
Right Headlamp Leveling Motor...................8W-10-34
Right High Headlamp.........................8W-10-33
Right Liftgate Flood Lamp......................8W-10-21
Right Low Headlamp.........................8W-10-33
Right Mid Reading Lamp.....................8W-10-20, 21
Right Rear Reading Lamp....................8W-10-20, 21
Right Visor/Vanity Mirror Lamps..................8W-10-20
Sentry Key Immobilizer Module...................8W-10-20
Stop Lamp Switch...........................8W-10-29
Transmission Control Module..................8W-10-16, 28
Transmission Control Relay....................8W-10-9, 28
Transmission Control Solenoids...................8W-10-28
Universal Garage Door Opener....................8W-10-20
Upstream Heated Oxygen Sensor..................8W-10-23
Vehicle Speed Sensor.......................8W-10-27, 29
Washer Module............................8W-10-13
Wiper High/Low Relay........................8W-10-19
Wiper Module.............................8W-10-19
Wiper On Relay..........................8W-10-8, 19
NS/GS8W - 10 POWER DISTRIBUTION 8W - 10 - 1

8W-12 JUNCTION BLOCK
Component PageA/C Compressor Clutch Relay..............8W-12-13
A/C Heater Control.................8W-12-9, 12, 23
Airbag Control Module...................8W-12-13
Ash Receiver Lamp...................8W-12-19, 23
Automatic Day/Night Mirror................8W-12-9
Back-Up Switch........................8W-12-12
Body Control Module........8W-12-8, 9, 14, 15, 17, 18,
19, 20, 22, 23, 24, 26
Brake Pressure Switch...................8W-12-17
Cigar/Accessory Relay....................8W-12-16
Clutch Interlock Switch..................8W-12-16
Clutch Interlock Switch Jumper............8W-12-16
Combination Flasher/DRL Module . . .8W-12-12, 17, 18, 19
Controller Anti-Lock Brake................8W-12-12
Courtesy Lamp Relay....................8W-12-22
CS01...............................8W-12-22
CS02...............................8W-12-21
CS04................................8W-12-9
CS1................................8W-12-22
Data Link Connector....................8W-12-20
Door Lock Relay.....................8W-12-15, 19
Door Unlock Relay...................8W-12-14, 19
Driver Door Courtesy Lamp...............8W-12-22
Driver Door Lock Motor................8W-12-14, 15
Driver Door Lock Switch..................8W-12-23
Driver Door Unlock Relay..............8W-12-14, 19
Driver Heated Seat Switch................8W-12-12
Driver Power Mirror..................8W-12-10, 26
Driver Power Window Switch............8W-12-16, 23
EGR Solenoid.........................8W-12-13
Electric Wiper De-Icer...................8W-12-11
Engine Starter Motor Relay...............8W-12-16
ES07...............................8W-12-13
ES29...............................8W-12-13
Evap Leak Detection Pump................8W-12-13
Fog Lamp Relay.......................8W-12-25
Front Blower Motor Relay.................8W-12-12
Front Cigar Lighter/Power Outlet...........8W-12-23
Front Reading Lamps/Switch..............8W-12-21
Front Washer Motor................8W-12-16, 23, 24
Front Wiper Switch................8W-12-16, 23, 24
Fuel Heater Relay......................8W-12-13
Fuel Pump Relay.......................8W-12-13
Fuse 1 (JB)............................8W-12-8
Fuse 2 (JB).........................8W-12-9, 20
Fuse 2 (PDC)..........................8W-12-13
Fuse 3 (JB)............................8W-12-8
Fuse 4 (JB)............................8W-12-8
Fuse 5 (JB).........................8W-12-8, 24
Fuse 6 (JB)............................8W-12-9
Fuse 6 (PDC)..........................8W-12-25
Fuse 7 (JB)...........................8W-12-10
Fuse 8 (JB)...........................8W-12-11
Fuse 9 (JB)...........................8W-12-11
Fuse 10 (JB)..........................8W-12-16
Fuse 11 (JB)..........................8W-12-11
Fuse 12 (JB)..........................8W-12-12
Fuse 18 (PDC).........................8W-12-26
Fuse 22 (PDC).......................8W-12-8, 24
G300..........................8W-12-11, 19, 26
Glove Box Lamp.......................8W-12-21
Headlamp Dimmer Switch..............8W-12-18, 25
Headlamp Switch.............8W-12-8, 19, 22, 23, 25
Headlamp Washer......................8W-12-24
Horn Relay...........................8W-12-17
HS2................................8W-12-12
HS4................................8W-12-12Component PageIgnition Switch...................8W-12-17, 19, 20
Instrument Cluster..............8W-12-9, 19, 20, 23
Junction Block......8W-12-2, 8, 9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26
Key-In Halo Lamp.................8W-12-19, 22, 26
Left Combination Relay..................8W-12-18
Left Fog Lamp.......................8W-12-8, 25
Left Front Park/Turn Signal Lamp.........8W-12-8, 18
Left Liftgate Flood Lamp.................8W-12-22
Left Low Headlamp.....................8W-12-25
Left Rear Lamp Assembly...............8W-12-8, 18
Left Rear Sliding Door Contact...........8W-12-14, 15
Left Repeater Lamp.....................8W-12-18
Left Stop/Turn Signal Relay...............8W-12-18
License Lamp..........................8W-12-8
Liftgate Lock Motor..................8W-12-14, 15
Low Beam Relay.......................8W-12-25
Message Center..............8W-12-9, 17, 18, 19, 20
Name Brand Speaker Relay.............8W-12-11, 19
Overhead Console.......................8W-12-9
Park Brake Switch......................8W-12-17
Park Lamp Relay.....................8W-12-8, 24
Passenger Door Courtesy Lamp.............8W-12-22
Passenger Door Lock Motor.............8W-12-14, 15
Passenger Door Lock Switch...............8W-12-23
Passenger Heated Seat Switch..............8W-12-12
Passenger Power Mirror...............8W-12-10, 26
Passenger Power Window Switch.........8W-12-16, 23
Power Distribution Center.........8W-8,12-12, 13, 16,
17, 24, 25, 26
Power Folding Mirror Switch............8W-12-19, 26
Power Mirror Fold Relay..................8W-12-26
Power Mirror Switch...............8W-12-19, 21, 23
Power Mirror Unfold Relay................8W-12-26
Powertrain Control Module................8W-12-13
PTC 1 (JB)...........................8W-12-13
PTC 3 (JB)......................8W-12-14, 15, 24
PTC 7 (JB).........................8W-12-16, 24
PTC 8 (JB)...........................8W-12-16
PTC 9 (JB)...........................8W-12-16
Radio..........................8W-12-11, 20, 23
Radio Choke..........................8W-12-11
Rear A/C Heater Unit....................8W-12-11
Rear Blower Front Control Switch...........8W-12-23
Rear Blower Rear Control Switch...........8W-12-23
Rear Washer Motor.....................8W-12-16
Rear Window Defogger...................8W-12-10
Rear Window Defogger Relay............8W-12-10, 12
Rear Wiper Motor.......................8W-12-9
Remote Keyless Entry Module..............8W-12-20
Right Combination Relay.................8W-12-18
Right Fog Lamp......................8W-12-8, 25
Right Front Park/Turn Signal Lamp........8W-12-8, 18
Right Liftgate Flood Lamp................8W-12-22
Right Rear Lamp Assembly..............8W-12-8, 18
Right Rear Sliding Door Contact..........8W-12-14, 15
Right Repeater Lamp....................8W-12-18
Right Stop/Turn Signal Relay..............8W-12-18
Sentry Key Immobilizer Module..........8W-12-13, 21
Stop Lamp Switch......................8W-12-19
Traction Control Switch................8W-12-19, 23
Trailer Tow Connector....................8W-12-8
Transmission Control Module.............8W-12-9, 16
Transmission Range Sensor................8W-12-12
Turn Signal/Hazard Switch................8W-12-17
Universal Garage Door Opener.............8W-12-23
Washer Module.................8W-12-8, 15, 16, 23
NS/GS8W - 12 JUNCTION BLOCK 8W - 12 - 1

8W-15 GROUND DISTRIBUTION
Component PageA/C Compressor Clutch....................8W-15-2, 3
A/C Heater Control........................8W-15-4
Airbag Control Module......................8W-15-4
All Wheel Drive Solenoid....................8W-15-13
Ash Receiver Lamp........................8W-15-6
Automatic Day/Night Mirror...................8W-15-5
AW4B13..............................8W-15-13
AWS1................................8W-15-13
Battery..............................8W-15-2, 3
Body Control Module.......................8W-15-6
Brake Pressure Switch......................8W-15-8
BS08.................................8W-15-5
BS31.................................8W-15-3
BS40.................................8W-15-3
BS41.................................8W-15-3
Center High Mounted Stop Lamp...............8W-15-14
Cigar/Accessory Relay.......................8W-15-7
Clockspring.............................8W-15-4
Clutch Switch............................8W-15-8
Combination Flasher/DRL Module...............8W-15-6
Controller Anti-Lock Brake....................8W-15-4
Crank Case Heater........................8W-15-3
CS06..............................8W-15-11, 12
Data Link Connector....................8W-15-2, 4, 12
Door Lock Relay..........................8W-15-6
Door Unlock Relay.........................8W-15-6
Downstream Heated Oxygen Sensor..............8W-15-5
Driver Door Arm/Disarm Switch.............8W-15-11, 12
Driver Door Courtesy Lamp...................8W-15-7
Driver Door Lock Switch..................8W-15-11, 12
Driver Door Unlock Relay....................8W-15-6
Driver Heated Seat Back.....................8W-15-9
Driver Heated Seat Cushion...................8W-15-9
Driver Heated Seat Module...................8W-15-9
Driver Heated Seat Switch....................8W-15-9
Driver Power Mirror........................8W-15-4
Driver Power Seat Switch....................8W-15-5
Driver Power Window Switch..................8W-15-7
DS01.................................8W-15-7
EC1C19...............................8W-15-5
Engine Speed Sensor.......................8W-15-3
ES01.................................8W-15-3
ES02.................................8W-15-3
ES11 .................................8W-15-2
ES12.................................8W-15-3
ES18.................................8W-15-2
ES23.................................8W-15-2
ES30.................................8W-15-3
ES31.................................8W-15-3
Front Blower Motor Relay....................8W-15-7
Front Cigar Lighter/Power Outlet...............8W-15-4
Fuel Heater.............................8W-15-3
Fuel Heater Relay.........................8W-15-3
Fuel Tank Module........................8W-15-13
G100................................8W-15-2, 3
G101.................................8W-15-2
G102................................8W-15-2, 3
G103................................8W-15-2, 3
G104.................................8W-15-4
G200.................................8W-15-4
G201.................................8W-15-4
G202.................................8W-15-5
G204.................................8W-15-4
G300...........................8W-15-5, 6, 7, 8, 9
G301............................8W-15-10, 11, 12
G302.................................8W-15-13
G400.................................8W-15-14
Headlamp Dimmer Switch....................8W-15-4
Headlamp Switch........................8W-15-4, 6
Headlamp Washer........................8W-15-10
High Note Horn.......................8W-15-11, 12
Hood Ajar Switch.........................8W-15-10
HS1..................................8W-15-9
HS3..................................8W-15-9
HS5D B09..............................8W-15-9
HS5P B56..............................8W-15-9
Ignition Switch.........................8W-15-4, 6
Instrument Cluster.......................8W-15-4, 6
Junction Block...........................8W-15-6
Key-In Halo Lamp.........................8W-15-6
Left Combination Relay.....................8W-15-13Component PageLeft Door Speaker.........................8W-15-5
Left Front Park/Turn Signal Lamp...............8W-15-7
Left Headlamp...........................8W-15-8
Left Headlamp Leveling Motor.................8W-15-8
Left High Headlamp........................8W-15-8
Left Liftgate Flood Lamp....................8W-15-14
Left Low Headlamp........................8W-15-8
Left Rear Door Ajar Switch...................8W-15-13
Left Rear Lamp Assembly....................8W-15-13
Left Rear Speaker.........................8W-15-5
Left Repeater Lamp........................8W-15-5
Left Speed Control Switch....................8W-15-4
Left Stop/Turn Signal Relay..................8W-15-13
License Lamp...........................8W-15-14
Liftgate Ajar Switch.......................8W-15-14
Liftgate Arm/Disarm Switch..................8W-15-14
Low Coolant Level Switch....................8W-15-3
Low Note Horn..........................8W-15-10
Low Washer Fluid Switch.................8W-15-11, 12
Memory Power Seat Switch..................8W-15-5, 9
Memory Seat/Mirror Module.................8W-15-5, 9
Memory Set Switch........................8W-15-7
Message Center...........................8W-15-6
Name Brand Speaker Relay...................8W-15-6
Needle Movement Sensor.....................8W-15-3
Overhead Console......................8W-15-11, 12
Passenger Door Arm/Disarm Switch.............8W-15-10
Passenger Door Courtesy Lamp.................8W-15-7
Passenger Door Lock Switch..................8W-15-10
Passenger Heated Seat Back...................8W-15-9
Passenger Heated Seat Cushion.................8W-15-9
Passenger Heated Seat Module.................8W-15-9
Passenger Heated Seat Switch.................8W-15-9
Passenger Power Mirror.....................8W-15-4
Passenger Power Seat Switch................8W-15-5, 12
Passenger Power Window Switch................8W-15-7
Power Distribution Center.................8W-15-2, 3, 7
Power Folding Mirror Switch..................8W-15-6
Power Mirror Switch.......................8W-15-6
Powertrain Control Module..................8W-15-2, 3
Radiator Fan Disconnect.....................8W-15-3
Radiator Fan No. 1........................8W-15-2
Radiator Fan No. 2........................8W-15-2
Radiator Fan Relay........................8W-15-2
Radiator Fan Relay No. 1.....................8W-15-3
Radio.................................8W-15-5
Rear Blower Front Control Switch...............8W-15-4
Rear Blower Rear Control Switch...............8W-15-13
Rear Cigar Lighter/Power Outlet...............8W-15-13
Rear Window Defogger.....................8W-15-14
Rear Wiper Motor.........................8W-15-14
Remote Keyless Entry Module..................8W-15-4
RF3E40...............................8W-15-2
RFS2.................................8W-15-2
Right Combination Relay....................8W-15-13
Right Door Speaker........................8W-15-5
Right Front Park/Turn Signal Lamp.............8W-15-10
Right Headlamp..........................8W-15-10
Right Headlamp Leveling Motor................8W-15-10
Right High Headlamp......................8W-15-10
Right Liftgate Flood Lamp...................8W-15-14
Right Low Headlamp......................8W-15-10
Right Rear Door Ajar Switch..................8W-15-13
Right Rear Lamp Assembly...................8W-15-13
Right Rear Speaker........................8W-15-5
Right Repeater Lamp......................8W-15-10
Right Speed Control Switch...................8W-15-4
Right Stop/Turn Signal Relay.................8W-15-13
Seat Belt Switch..........................8W-15-8
Sentry Key Immobilizer Module.................8W-15-4
Stop Lamp Switch.......................8W-15-6, 7
Traction Control Switch......................8W-15-6
Trailer Tow Connector......................8W-15-13
Transmission Control Module..................8W-15-2
Transmission Control Relay...................8W-15-2
Universal Garage Door Opener..............8W-15-11, 12
Upstream Heated Oxygen Sensor................8W-15-2
Vehicle Speed Control Servo...................8W-15-2
Wiper Module............................8W-15-5
Wiper On Relay...........................8W-15-7
NS/GS8W - 15 GROUND DISTRIBUTION 8W - 15 - 1

8W-42 AIR CONDITIONING-HEATER
Component Page
A/C Compressor Clutch...............8W-42-7, 9
A/C Compressor Clutch Relay..........8W-42-7, 9
A/C Heater Control............8W-42-2, 3, 4, 5, 6
A/C On Indicator......................8W-42-4
A/C Pressure Transducer..............8W-42-7, 9
A/C Switch..........................8W-42-4
A/C Zone Door Actuator.................8W-42-5
Battery.............................8W-42-9
Blend Door Actuator...................8W-42-5
Body Control Module.................8W-42-3, 6
BS17...............................8W-42-6
BS34...............................8W-42-9
Diesel Power Relay....................8W-42-9
Driver's Side Radiator Fan.............8W-42-10
Electric Wiper De-Icer..................8W-42-3
ES01...............................8W-42-9
ES02.............................8W-42-7, 9
ES03...............................8W-42-7
ES06...............................8W-42-9
ES07............................8W-42-7, 10
ES09..............................8W-42-10
ES12..............................8W-42-10
ES21...............................8W-42-7
ES23.............................8W-42-7, 8
ES29............................8W-42-9, 10
Evaporator Temperature Sensor..........8W-42-5
Front Blower Motor....................8W-42-2
Front Blower Motor Relay...............8W-42-2
Front Blower Motor Resistor Block........8W-42-2
Front Cigar Lighter/Power Outlet.........8W-42-3
FS01...............................8W-42-7
Fuse 6 (JB)..........................8W-42-4
Fuse 11 (JB).........................8W-42-6
Fuse 11 (PDC)......................8W-42-7, 9
Fuse 12 (JB).........................8W-42-2
Fuse 17 (PDC)........................8W-42-9
Fuse 21 (PDC)........................8W-42-2
Fuse 24 (PDC).....................8W-42-8, 10
G100...............................8W-42-9
G102..........................8W-42-7, 8, 10
G103...............................8W-42-9Component Page
G200.............................8W-42-3, 4
G201...........................8W-42-2, 3, 6
G300...............................8W-42-2
G302...............................8W-42-6
HVAC Control..................8W-42-2, 3, 4, 5
Illumination Lamp....................8W-42-3
Instrument Cluster....................8W-42-3
JS01b..............................8W-42-5
JS02b..............................8W-42-5
JS03...............................8W-42-5
Junction Block................8W-42-2, 3, 4, 6, 7
Message Center.......................8W-42-4
Mode Door Actuator...................8W-42-5
Passenger's Side Radiator Fan..........8W-42-10
Power Distribution Center......8W-42-2, 7, 8, 9, 10
Powertrain Control Module.....8W-42-3, 7, 8, 9, 10
PTC 1 (JB)..........................8W-42-7
Radiator Fan Disconnect...............8W-42-10
Radiator Fan No. 1....................8W-42-8
Radiator Fan No. 2....................8W-42-8
Radiator Fan Relay....................8W-42-8
Radiator Fan Relay No. 1..............8W-42-10
Radiator Fan Relay No. 2..............8W-42-10
Radiator Fan Relay No. 3..............8W-42-10
Rear A/C Heater Unit..................8W-42-6
Rear Blower Front Control Switch. . . .8W-42-2, 3, 6
Rear Blower Rear Control Switch.........8W-42-6
Rear Defogger On Indicator..............8W-42-4
Rear Washer Switch...................8W-42-3
Rear Window Defogger Relay............8W-42-4
Rear Window Defogger Switch...........8W-42-4
Rear Wiper Delay On Indicator...........8W-42-3
Rear Wiper Delay Switch...............8W-42-3
Rear Wiper On Indicator................8W-42-3
Rear Wiper On Switch..................8W-42-3
Recirculate Mode Indicator..............8W-42-4
Recirculate Mode Switch................8W-42-4
Recirculation Door Actuator.............8W-42-5
RF3E40 ............................8W-42-8
RFS1...............................8W-42-8
RFS2...............................8W-42-8
NS/GS8W - 42 AIR CONDITIONING-HEATER 8W - 42 - 1