
2
3
CB
2
2
10
7
12
31
3
MOTOR WIPER TRACTION
CONTROL
SWITCH
MULTI-
FUNCTION
SWITCH MODULE ENTRY
KEYLESS
REMOTE OUTLET POWER
LIGHTER/
CIGAR EXPORT) (BUILT-UP-
SWITCH
LEVELING
HEADLAMP LAMP PRNDL
SWITCH LAMP/
BOX
GLOVE
CENTER
STACK
LAMP
CLUSTER INSTRUMENTSUNROOF
CONTROL
MODULEMAP/
READING
LAMPS
POWER
SUNROOF OTHER
C2025
3C204
G204 S202S205 S252
Z3
20
BK/ORZ3
20
BK/ORZ3
20
BK/ORZ3
16
BK/OR
Z3
18
BK/ORZ3
18
BK/OR
Z3
18
BK/OR
Z3
18
BK/OR
Z3
14
BK/OR
Z1
16
BK
Z1
16
BKZ1
16
BKZ1
20
BKZ1
20
BKZ1
20
BKZ1
20
BK
Z1
16
BK
C3063
Z3
18
BK/OR
(8W-53-3) (8W-35-3)
(8W-52-3)
(8W-52-4) (8W-39-2) (8W-41-4) (8W-50-8) (8W-44-5)
(8W-44-4)
(8W-44-5)
(8W-40-2)(8W-64-2) (8W-44-3)
PL8W-15 GROUND DISTRIBUTION 8W - 15 - 11
PLI01511008W-10

8W-44 INTERIOR LIGHTING
Component Page
A/C Heater Control...................8W-44-5
Cargo Lamp........................8W-44-4
Center Stack Lamp...................8W-44-5
Decklid Release Switch................8W-44-4
Dome Lamp........................8W-44-2
Dome Lamp/Intrusion Sensor...........8W-44-2
Fuse 13 (PDC).....................8W-44-2, 4
G101..............................8W-44-4
G201..............................8W-44-5
G203..............................8W-44-5
G204..........................8W-44-3, 4, 5
G301..............................8W-44-2
Glove Box Lamp/Switch...............8W-44-4Component Page
Headlamp Leveling Switch.............8W-44-5
Instrument Cluster.................8W-44-3, 5
Left Visor/Vanity Lamp................8W-44-4
Map/Reading Lamps................8W-44-2, 3
Power Distribution Center...........8W-44-2, 4
PRNDL Lamp.......................8W-44-5
Radio.............................8W-44-5
Rear Window Defogger Switch..........8W-44-5
Remote Keyless Entry Module..........8W-44-2
Right Visor/Vanity Lamp..............8W-44-4
Traction Control Switch...............8W-44-5
Underhood Lamp....................8W-44-4
PL8W - 44 INTERIOR LIGHTING 8W - 44 - 1

13
15A
FUSE
13
BATT A0
POWER
DISTRIBUTION
CENTER
1
2
G101
S112
C1071
UNDERHOOD
LAMP
21
SWITCH LAMP/
BOX
GLOVE
G204
S205
LAMP
VANITY
VISOR/
LEFT RIGHT
VISOR/
VANITY
LAMP
C204121
DECKLID
RELEASE CARGO
LAMP
C3023
S309
10C105
B5C1035
S201
M1
20
PK
M1
20
PK
M1
20
WT
M1
18
BK/PK
M1
18
BK/PKM1
18
BK/PK
M1
20
PKM1
20
PK
M1
20
PK
M1
20
PKM1
20
PK
M1
20
PK
Z1
20
BK
Z1
18
BK
Z3
20
BK/OR
Z3
14
BK/OR
S103
S251
G78
22
TN/BK
G78
18
TN/BK
SWITCH
2C107
BK20Z1
S133
S134
Z1
20
BK
M1
20
PK
(8W-10-12)(8W-10-7)
(8W-10-2)
(8W-10-3)
(8W-15-3) (8W-15-3)
(8W-15-11) (8W-15-11)(8W-10-12)
(8W-10-12)(8W-10-12)
(8W-10-12) (8W-10-12)
(8W-15-3)
8W - 44 - 4 8W-44 INTERIOR LIGHTINGPL
008W-10PLI04404

Component Page
Fuel Pump Module..................8W-80-25
Generator.........................8W-80-25
Glove Box Lamp/Switch..............8W-80-25
Headlamp Leveling Switch............8W-80-25
High Note Horn....................8W-80-25
Hood Ajar Switch...................8W-80-26
Idle Air Control Motor................8W-80-26
Ignition Coil.......................8W-80-26
Ignition Switch.....................8W-80-26
Inlet Air Temperature Sensor..........8W-80-27
Instrument Cluster..................8W-80-27
Knock Sensor......................8W-80-27
Leak Detection Pump................8W-80-28
Left Back-Up Lamp..................8W-80-28
Left City Lamp.....................8W-80-28
Left Front Door Speaker..............8W-80-28
Left Front Fog Lamp..............8W-80-28, 29
Left Front Side Marker Lamp..........8W-80-29
Left Front Turn Signal Lamp..........8W-80-29
Left Front Wheel Speed Sensor.........8W-80-29
Left Headlamp...................8W-80-29, 30
Left Headlamp Leveling Motor.........8W-80-30
Left Instrument Panel Speaker.........8W-80-30
Left License Lamp..................8W-80-30
Left Park/Turn Signal Lamp...........8W-80-30
Left Rear Door Lock Motor............8W-80-31Component Page
Left Rear Fog Lamp.................8W-80-31
Left Rear Speaker...................8W-80-31
Left Rear Turn Signal Lamp...........8W-80-31
Left Rear Wheel Speed Sensor.........8W-80-31
Left Repeater Lamp.................8W-80-32
Left Tail/Stop Lamp.................8W-80-32
Left Tail/Stop/Turn Signal Lamp........8W-80-32
License Lamp......................8W-80-32
Low Note Horn.....................8W-80-32
Manifold Absolute Pressure Sensor......8W-80-33
Map/Reading Lamps.................8W-80-33
Multi-Function Switch...............8W-80-33
Oxygen Sensor 1/1 Upstream..........8W-80-34
Oxygen Sensor 1/2 Downstream........8W-80-34
Park/Neutral Position Switch..........8W-80-34
Passenger Airbag...................8W-80-34
Passenger Cylinder Lock Switch........8W-80-34
Passenger Door Lock Motor...........8W-80-34
Passenger Door Lock Switch...........8W-80-35
Passenger Power Mirror..............8W-80-35
Passenger Power Window Motor........8W-80-35
Passenger Power Window Switch.......8W-80-35
Power Mirror Switch.................8W-80-36
Power Steering Pressure Switch........8W-80-36
Powertrain Control Module - C1........8W-80-37
Powertrain Control Module - C2........8W-80-38
8W - 80 - 2 8W - 80 CONNECTOR PIN-OUTSPL

CAV CIRCUIT FUNCTION
1 Z1 18BK GROUND
2 Z2 18BK/LG GROUND
3 G4 18DB FUEL LEVEL SENSOR SIGNAL
4 A141 18DG/WT FUEL PUMP RELAY OUTPUT
LT GRAY
4
1
BLACK
CAV CIRCUIT FUNCTION
1
A142 18DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT 2K20 18DG GENERATOR FIELD DRIVER (+) 2
1
CAV CIRCUIT FUNCTION
1M1 20PK FUSED B (+)
2Z3 20BK/OR GROUND
1 2
FUEL PUMP
MODULE
GENERATOR
LAMP/SWITCHGLOVE BOX
HIGH
18BK Z1
2
18DG/RD X2 1
1
2BLACK
CAV CIRCUIT FUNCTION
GROUND
HORN RELAY OUTPUT
(BUILT-UP-EXPORT)SWITCH HEADLAMP LEVELING
L13 20BR/YL
E2 22OR
5 4
Z1 20BK 3
1
- - 2 L43 18VT CAV CIRCUIT FUNCTION
GROUND HEADLAMP ADJUST SIGNAL
FUSED LEFT LOW BEAM OUTPUT
PANEL LAMPS DRIVER 4
1
BLACK
BLACK
NOTE
HORN
PL8W-80 CONNECTOR PIN-OUTS 8W - 80 - 25
PLI08025J008W-10

Connector
Name/NumberColor Location Fig.
G102 Left Front of
Engine
CompartmentN/S
G103 Right Front of
Engine
Compartment3
G104 Near Engine
Starter MotorN/S
G105 Near Negative
Battery
TerminalN/S
G201 Lower Center
of Instrument
Panel7, 8
G202 Lower Center
of Instrument
Panel7, 8
G203 Lower Center
of Instrument
Panel7, 8
G204 Lower Center
of Instrument
Panel7, 8
G301 Inner Left
Rear Quarter
Panel11
G302 Inner Right
Rear Quarter
Panel12
G303 Inner Left
Rear Quarter
Panel11
G304 At Decklid 17
Generator BK Left Rear of
Engine5
Glove Box
Lamp/SwitchBK Rear of
Lamp/Switch6, 7
Headlamp
Leveling
Switch
(Built-Up-
Export)BK Center of
Instrument
Panel7
High Note
HornBK Right Inner
Fender1
Hood Ajar
SwitchBK Right Side of
Engine
CompartmentN/SConnector
Name/NumberColor Location Fig.
Idle Air Control
MotorBK On Throttle
Body2
Ignition Coil BK Top of Valve
Cover5
Ignition Switch BK Rear of
Switch6
Inlet Air
Temperature
SensorBK Left Front of
Engine
Compartment2
Instrument
ClusterBK Left Side of
Instrument
Panel6
Knock Sensor BK Left Front of
Engine4
Leak
Detection
Pump (Except
Built-Up-
Export)BK Left Rear of
Vehicle13
Left Back-Up
LampBK At Lamp 11
Left City Lamp
(Built-Up-
Export)BK At Lamp N/S
Left Front
Door SpeakerBK At Drivers
Door14
Left Front Fog
LampBK At Lamp N/S
Left Front Side
Marker Lamp
(Except
Built-Up-
Export)NAT At Lamp N/S
Left Front Turn
Signal Lamp
(Built-Up-
Export)NAT At Lamp 2
Left Front
Wheel Speed
SensorBK At Left Front
Wheel
Opening2
Left Headlamp BK At Lamp 2
Left Headlamp
Leveling Motor
(Built-Up-
Export)GY Rear of Left
HeadlampN/S
Left
Instrument
Panel SpeakerBK At Speaker 6
PL8W - 90 CONNECTOR/GROUND LOCATIONS 8W - 90 - 3
DESCRIPTION AND OPERATION (Continued)

Connector
Name/NumberColor Location Fig.
G202 Lower Center
of Instrument
Panel24, 26
G203 Lower Center
of Instrument
Panel24, 26
G204 Lower Center
of Instrument
Panel24, 26
G301 Inner Left
Rear Quarter
Panel30
G302 Inner Right
Rear Quarter
Panel31
G303 Inner Left
Rear Quarter
Panel30
G304 At Decklid 36
Generator BK Left Rear of
Engine22
Glove Box
Lamp / SwitchBK Rear of
Lamp/Switch24, 25
Headlamp
Leveling
SwitchBK Center of
Instrument
Panel24
High Note
HornBK Right Inner
Fender18
Hood Ajar
SwitchBK Right Side of
Engine
CompartmentN/S
Idle Air Control
MotorBK On Throttle
Body19
Ignition Coil BK Top of Valve
Cover22
Ignition Switch BK Rear of
Switch25
Inlet Air
Temperature
SensorBK Left Front of
Engine
Compartment19
Instrument
ClusterBK Right Side of
Instrument
Panel25
Knock Sensor BK Left Front of
Engine21
Left Back-Up
LampBK At Lamp 30
Left City Lamp BK At Lamp N/SConnector
Name/NumberColor Location Fig.
Left Front
Door SpeakerBK At
Passengers
Door33
Left Front Fog
LampBK At Lamp N/S
Left Front Turn
Signal LampNAT At Lamp 19
Left Front
Wheel Speed
SensorBK At Left Front
Wheel
Opening19
Left Headlamp BK At Lamp 19
Left Headlamp
Leveling MotorGY Rear of Left
HeadlampN/S
Left
Instrument
Panel SpeakerBK At Speaker 24, 25
Left License
LampNAT Rear of Lamp 32
Left Rear Door
Lock MotorBK At Motor 35
Left Rear Fog
LampGY At Lamp N/S
Left Rear
SpeakerBK At Speaker 30
Left Rear Turn
Signal LampGY At Lamp 30
Left Rear
Wheel Speed
SensorBL At Left Rear
Wheel
OpeningN/S
Left Repeater
LampBL At Lamp 18
Left Tail/Stop
LampBK At Lamp 30
Low Note
HornBK Right Inner
Fender18
Manifold
Absolute
Pressure
SensorBK Left Front of
Engine21
Map/Reading
LampsBK Front of
Headliner27
Multi-Function
SwitchGY Right Side of
Instrument
Panel25
Oxygen
Sensor 1/1
UpstreamGY Right Rear of
Engine22
PL8W - 90 CONNECTOR/GROUND LOCATIONS 8W - 90 - 23
DESCRIPTION AND OPERATION (Continued)

GENERAL INFORMATION
A/C APPLICATION TABLE
Item Description Notes
Vehicle PL Neon
System expansion valve
Total Refrigerant
CapacityR134a 765 grams / 27 oz / 1.69 lbs
Total Oil Capacity ND-8 PAG oil 180 ml / 6.10 oz
Compressor Nippondenso 10S17
Freeze-up Control Fin sensor-3 wire input to PCM, evaporator mounted, cycles
clutch off below 34É F, cycles back on
above 45É F
Low psi Control opens < 14 psi, resets > 38 psi expansion valve mounted
High psi Control opens > 470 psi, resets < 370 - 330 psi compressor mounted switch
Control head manual type
Mode Door cable
Blend Air Door cable
Fresh/Recirc door vacuum actuator
Blower Motor control head switched resistor block
Cooling Fan variable speed PCM controlled ISO solid state fan relay
Clutch
Control relay PCM
Draw 2.5 amps @ 12V60.5V @ 70É F
Gap 0.014º - 0.0269
DRB IIIT
Reads TPS, RPM, A/C switch test, fin sensor
A/C & fan relays
Actuators fan & clutch relays
HEATER AND AIR CONDITIONING CONTROL
Both the heater-only and heater-A/C systems use a
combination of, electrical, cable, and vacuum con-
trols. These controls provide the vehicle operator
with a number of setting options to help control the
climate and comfort within the vehicle. Refer to the
owner's manual in the vehicle glove box for more
information on the features, use, and suggested oper-
ation of these controls.
The heater-only or heater-A/C control panel is located
to the right of the instrument cluster on the instrument
panel. The control panel contains rotary-type knobs.
There is a blower motor speed switch, mode control
switch, temperature control, and airflow control.
The heater-only or heater-A/C control panel cannot
be repaired. If faulty or damaged, the entire unit
must be replaced. The control knobs and the illumi-
nation lamps are available for service replacement.
HEATER AND AIR CONDITIONING
All vehicles are equipped with a common heater-
A/C housing assembly (Fig. 1). The system combines
air conditioning, heating, and ventilating capabilities
in a single unit housing mounted under the instru-
ment panel. On heater-only systems, the evaporator
coil is omitted from the housing and replaced with an
air restrictor plate.
Outside air enters the vehicle through the cowl top
opening at the base of the windshield, and passes
through a plenum chamber to the heater-A/C system
blower housing. Air flow velocity can then be
adjusted with the blower motor speed selector switch
on the heater-A/C control panel. The air intake open-
ings must be kept free of snow, ice, leaves, and other
obstructions for the heater-A/C system to receive a
sufficient volume of outside air.
24 - 2 HEATING AND AIR CONDITIONINGPL