low beam DODGE NEON 1997 1.G Wiring Diagrams Workshop Manual

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INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
DESCRIPTION AND OPERATION.......................................................... 3
Component Page
A/C Compressor Clutch.................8W-42
A/C Compressor Clutch Relay............8W-42
A/C Cycling Switch....................8W-42
A/C Heater Blower Motor................8W-42
A/C Heater Control Switch...............8W-42
A/C High Pressure Switch...............8W-42
A/C Low Pressure Switch................8W-42
ABS Hydraulic Modulator...............8W-35
ABS Pump Motor......................8W-35
ABS Pump Motor Relay.................8W-35
ABS Relay Box........................8W-35
ABS System Relay.....................8W-35
ABS Warning Lamp....................8W-35
Airbag Control Module..................8W-43
Airbag Impact Sensors..................8W-43
Airbag Warning Lamp..................8W-40
Antenna.............................8W-47
Anti-Lock Warning Lamp................8W-40
Ash Receiver Lamp....................8W-44
Automatic Shut Down Relay.............8W-30
Back-Up Lamp Switch..................8W-51
Back-Up Lamps.......................8W-51
Battery..............................8W-20
Battery Temperature Sensor.............8W-30
Blower Motor Resistor Block.............8W-42
Brake Warning Lamp...................8W-40
Brake Warning Lamp Switch.............8W-40
Camshaft Position (CMP) Sensor..........8W-30
Capacitor.........................8W-10, 20
Charge Indicator Lamp.................8W-40
Check Engine Lamp....................8W-40
Cigar Lighter Relay....................8W-41
Cigar Lighter/Power Outlet..............8W-41
Circuit Breaker.....................8W-11,62
Circuit Breaker (FB)...................8W-11
Clockspring..........................8W-41
Cluster Illumination Lamps..............8W-40
Clutch Pedal Position Switch..........8W-10, 21
Combination Flasher...................8W-52
Controller Anti-Lock Brake..............8W-35
Crankshaft Position (CKP) Sensor.........8W-30
Data Link Connector...................8W-30
Diode............................8W-15, 42
Dome Lamp..........................8W-44Component Page
Door Ajar Switches.....................8W-44
Door Jamb Switches....................8W-40
Door Lock Motors......................8W-61
Door Lock Switches....................8W-61
Door Speakers........................8W-47
Driver Side Airbag.....................8W-43
Duty Cycle Evap/Purge Solenoid..........8W-30
EGR Transducer Solenoid...............8W-30
Engine Coolant Temperature (ECT) Sensor . . 8W-30
Engine Coolant Temperature Gauge.......8W-40
Engine Oil Pressure Switch..............8W-40
Engine Starter Motor...................8W-21
Engine Starter Motor Relay..............8W-21
Fog Lamp Relay....................8W-50, 51
Fog Lamps........................8W-50, 51
Front Fog Lamp Switch.................8W-50
Fuel Gauge...........................8W-40
Fuel Injectors.........................8W-30
Fuel Pump Module.....................8W-30
Fuel Pump Relay......................8W-30
Fuse Block...........................8W-11
Fuses (FB)...........................8W-11
Fuses (PDC)..........................8W-10
Fusible Link.......................8W-20, 21
Generator............................8W-20
Glove Box Lamp And Switch.............8W-44
Ground Distribution....................8W-15
Headlamp Dimmer And Optical
Horn Switch........................8W-50
Headlamp Leveling Motors..............8W-50
Headlamp Leveling Switch...............8W-50
Headlamp Switch......................8W-50
Headlamps...........................8W-50
Heated Oxygen Sensors.................8W-30
High Beam Indicator Lamp..............8W-40
Horn Relay...........................8W-41
Horn Switches........................8W-41
Horns...............................8W-41
IAT/MAP Sensor......................8W-30
Idle Air Control (IAC) Motor.............8W-30
Ignition Coil Pack.....................8W-30
Ignition Switch........................8W-10
Immobilizer Engine Sensor..............8W-30
Immobilizer Sensor....................8W-30
PL8W - 02 COMPONENT INDEX 8W - 02 - 1

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INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
DESCRIPTION AND OPERATION.......................................................... 7
Component Page
ABS Relay Box......................8W-40-5
Airbag Control Module................8W-40-5
Airbag Warning Lamp.................8W-40-5
Anti-Lock Warning Lamp..............8W-40-5
Brake Warning Lamp.................8W-40-5
Brake Warning Lamp Switch...........8W-40-5
Charge Indicator Lamp................8W-40-5
Check Engine Lamp..................8W-40-6
Cluster Illumination Lamps............8W-40-2
Controller Anti-Lock Brake.............8W-40-5
Engine Coolant Temperature Gauge......8W-40-6
Engine Coolant Temperature Sensor......8W-40-6
Engine Oil Pressure Switch............8W-40-6
Fuel Gauge.........................8W-40-6
Fuel Pump Module...................8W-40-6
Fuse 9 (FB).........................8W-40-2
Fuse 11 (FB)........................8W-40-6
Fuse 13 (PDC).......................8W-40-3
Fuse Block........................8W-40-2, 6
G101..............................8W-40-5
G204..............................8W-40-6
Headlamp Dimmer And Optical
Horn Switch......................8W-40-2
Headlamp Switch..................8W-40-2, 3
High Beam Indicator Lamp.............8W-40-2
Instrument Cluster...........8W-40-2, 3, 4, 5, 6
Key-In Switch.......................8W-40-3Component Page
Left Front Door Jamb Switch...........8W-40-3
Left Park/Turn Signal Lamp............8W-40-4
Left Repeater Lamp..................8W-40-4
Left Turn Indicator Lamp..............8W-40-4
Low Oil Pressure Lamp...............8W-40-6
Park Brake Switch...................8W-40-5
Power Distribution Center.............8W-40-3
Powertrain Control Module.........8W-40-3, 5, 6
Right Park/Turn Signal Lamp...........8W-40-4
Right Repeater Lamp.................8W-40-4
Right Turn Indicator Lamp.............8W-40-4
S107..............................8W-40-5
S112 ..............................8W-40-4
S116 ..............................8W-40-4
S127..............................8W-40-5
S201..............................8W-40-6
S203..............................8W-40-3
S207..............................8W-40-4
S208..............................8W-40-5
S209..............................8W-40-2
S210..............................8W-40-2
S212..............................8W-40-4
Seat Belt Warning Lamp...............8W-40-5
Turn Signal/Hazard Switch.............8W-40-4
Vehicle Speed Sensor..................8W-40-3
8W - 40 - 2 8W - 40 INSTRUMENT CLUSTERPL

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INDEX
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DESCRIPTION AND OPERATION
AIRBAG WARNING LAMP.................. 8
ANTI-LOCK WARNING LAMP............... 9
BRAKE WARNING INDICATOR LAMP......... 8
CHARGE INDICATOR LAMP................ 8
ENGINE COOLANT TEMPERATURE GAUGE . . . 7
FUEL GAUGE........................... 7
HEADLAMP ON CHIME.................... 8
HELPFUL INFORMATION.................. 9
HIGH BEAM INDICATOR LAMP.............. 8
INSTRUMENT CLUSTER.................. 7KEY-IN CHIME.......................... 8
LOW FUEL LAMP........................ 8
LOW OIL PRESSURE LAMP................ 8
ODOMETER............................ 8
RIGHT AND LEFT TURN
SIGNAL INDICATORS................... 8
SEAT BELT WARNING INDICATOR........... 8
SERVICE ENGINE SOON LAMP............. 8
SPEEDOMETER......................... 7
TACHOMETER.......................... 7
DESCRIPTION AND OPERATION
INSTRUMENT CLUSTER
The Instrument Cluster, located on the right side
of the instrument panel, provides the operator with
gauges and warning lamps relating to vehicle opera-
tion. All gauges in the standard and optional cluster
are magnetic type and logic driven.
Battery voltage for the clusters warning lamps and
gauges is provided on the G5 circuit. This circuit con-
nects from the fuse block and is protected bya5amp
fuse located in cavity 11. The cluster is powered only
when the ignition switch is in the START or RUN
position. The cluster is also powered on initial driv-
er's door opening.
Illumination lamps, internal to the cluster, receive
battery voltage on the E2 circuit from the 4 amp fuse
located in cavity 12 of the fuse block. This circuit is
HOT only when the headlamp switch is in the ON
position. Grounding for the cluster is provided on the
Z3 circuit and terminates at the instrument panel
left center support.
The M1 circuit also feeds the cluster through a 10
amp fuse in the Power Distribution Center (PDC).
This fuse is HOT at all times and also used to power
the underhood lamp, and the interior lamps. The
fuse is also lifted OPEN during vehicle shipping to
reduce battery draw.
SPEEDOMETER
The speedometer and odometer receive their infor-
mation on the G7 circuit from the Vehicle Speed Sen-
sor (VSS) on manual and 3±spd automatic
transmission applications. The G7 circuit also pro-
vides a signal to the Powertrain Control Module
(PCM).Logic internal to the instrument cluster adjusts the
position of the gauge pointer to the correct vehicle
speed using the signal on the G7 circuit.
TACHOMETER
The tachometer is connected to the Powertrain
Control Module (PCM) on the G21 circuit. It uses
solid state circuity to decode the ignition pulses
received from the PCM to adjust the gauge pointer to
the proper position.
ENGINE COOLANT TEMPERATURE GAUGE
The temperature gauge is connected to the engine
coolant temperature sensor on the G20 circuit. The
engine coolant temperature sensor for the gauge is a
combination unit. One side of the unit is used for the
Powertrain Control Module (PCM) and the other side
for the cluster. The sending unit is case grounded to
the engine.
The logic driven gauge moves in response to the
measured resistance of the engine coolant tempera-
ture sending unit.
FUEL GAUGE
The fuel level gauge is connected to the fuel pump
module on the G4 circuit. The fuel pump module con-
tains the fuel pump and a variable resistor for the
gauge. Grounding for the fuel pump module is pro-
vided on the Z2 circuit and terminates at the left
rear wheel house.
The logic driven gauge moves in response to the
measured resistance of the fuel tank sending unit.
The fuel level sensor contains a variable resistor.
As the position of the float arm on the level sensor
changes, the resistor changes the current flow
through the fuel gauge circuit. A change in current
flow alters the magnetic field in the fuel gauge which
changes the pointer position.
PL8W - 40 INSTRUMENT CLUSTER 8W - 40 - 7

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The speedometer and odometer receive their infor-
mation on the G7 circuit from the Vehicle Speed Sen-
sor (VSS) on vehicles equipped with the manual or
3±spd automatic transmission. This circuit also pro-
vides a signal to the Powertrain Control Module
(PCM).
Logic internal to the cluster steps the odometer at
a high rate to indicate the proper mileage.
SERVICE ENGINE SOON LAMP
The Service Engine Soon lamp illuminates when
the ignition switch is in the ON position and prior to
starting the vehicle. The lamp will turn off after the
vehicle is started.
If while the vehicle is running a problem is
detected in the engine control system the lamp is
illuminated. This is accomplished by the Powertrain
Control Module (PCM) grounding the G3 circuit.
SEAT BELT WARNING INDICATOR
The fasten seat belt indicator is used with the
warning chime to indicate to the operator to fasten
the seat belt. There is a switch located in the drivers
side B-pillar that is normally OPEN with the seat
belt buckled.
If the seat belt is not buckled the switch CLOSES
and a ground path is completed from the G10 circuit
to the Z1 circuit. This will illuminate the lamp in the
instrument cluster.
When the ignition switch is moved to the START
position the lamp will illuminate. Logic internal to
the instrument cluster determines the length of time.
LOW FUEL LAMP
The low fuel lamp is used to indicate to the opera-
tor that the fuel level is below a predetermined level.
This lamp is logic driven by the instrument cluster.
When the instrument cluster determines a low fuel
condition based on an input from the fuel tank gauge
level sending unit (circuit G4) it illuminates the
lamp.
HEADLAMP ON CHIME
The headlamp ON chime is used to indicate to the
operator that the headlamps or parking lamps are
ON when the drivers door is OPEN. If the lamps are
ON and the drivers door is opened, a ground path is
completed from the G26 circuit at the cluster,
through the headlamp switch, to the G16 circuit and
ending at the door ajar switch. The door ajar switch
is case grounded.
KEY-IN CHIME
The key-in chime is used to indicate to the opera-
tor that the key is in the ignition with the driversdoor OPEN. If the key is in the ignition and the driv-
ers door is OPEN, a ground path is completed from
the G26 circuit at the cluster, through the CLOSED
key-in switch, to the G16 circuit and terminating at
the door ajar switch which is case grounded.
CHARGE INDICATOR LAMP
The Charge Indicator lamp is used to alert the
operator that the charging system voltage has fallen
below the normal operating range. This circuit is con-
trolled by the Powertrain Control Module (PCM).
When the PCM determines a problem, it grounds the
G12 circuit.
AIRBAG WARNING LAMP
The Airbag Warning lamp is used to alert the oper-
ator of a problem with the Airbag system. The lamp
is illuminated when the Airbag Control Module
(ACM) grounds the R41 circuit. Refer to the appro-
priate section of the Service Manual or Diagnostic
Test Procedures Manual to diagnosis this system.
LOW OIL PRESSURE LAMP
The low oil pressure lamp is used to indicate to the
operator that the engine oil pressure has dropped
below a predetermined pressure. Power for the lamp
is provided on the G5 circuit which also powers the
other warning lamps.
When the oil pressure is low the normally OPEN
oil pressure switch CLOSES completing a path to
ground on circuit G6. The oil pressure switch is case
grounded to the engine block.
HIGH BEAM INDICATOR LAMP
The High Beam Indicator Lamp is used to indicate
to the operator that the high beam headlamps are
ON. Power is supplied to the cluster on the L3 cir-
cuit. Ground is provided on the Z3 circuit.
Circuit L3 connects from the headlamp dimmer
switch to the instrument cluster.
RIGHT AND LEFT TURN SIGNAL INDICATORS
These lamps are used to indicate to the operator
which turn signal is ON. Power for the lamps comes
from the turn signal switch. The L60 circuit is for the
right turn indicator, and the L61 circuit is used for
the left turn signal indicator. Ground for the circuits
is provided on the Z3 circuit.
BRAKE WARNING INDICATOR LAMP
The Brake Warning Indicator lamp is used to alert
the operator of a problem with the vehicles braking
system. The lamp illuminates when the ignition
switch is turned to START position to perform a self
check.
8W - 40 - 8 8W - 40 INSTRUMENT CLUSTERPL
DESCRIPTION AND OPERATION (Continued)

Downloaded from www.Manualslib.com manuals search engine C10316
2
L44
18
VT/BK
HEADLAMP RIGHT
FEED BEAMLOW
HEADLAMP
DIMMER
AND
OPTICAL
HORN
SWITCH
1
L4
14
VT/WT
RD/OR14L3 3
HIGH
BEAM
FEED
FUSE
BLOCK
38
18FUSE10A
17
10A
FUSE
17
37
L3
14
RD/ORL3
16
RD/OR
CLUSTER INSTRUMENT S209
2C114C101
L3
16
RD/OR
VT/RD20 L44
RD/OR16L3
1
BK18Z1
BK18Z1
S107
G101
3
G103S117
Z1
18
BK
31
SWITCH HAZARD
SIGNAL/
TURN
3C1
TN22 L60 L60
22
TN
S207
L60
22
TN
16C103
TN22 L60
S116
L60
18
TNL60
18
TN
11
2LAMP REPEATER
RIGHT3LAMP
SIGNAL
TURN
PARK/
RIGHT
BK18Z1 Z1
18
BK
S127
Z1
18
BK
LEFT
HEADLAMP
46
(IN PDC) RELAY
LAMP
FOG
Z1
18
BK
1
L3
16
RD/OR
S114
L43 20VT
2
16C103
L43
20
VT
L43
18
VT
S133
(8W-50-2)
(8W-11-2)
(8W-11-12) (8W-11-12)
(8W-40-2)
(8W-40-4)
(8W-15-2)
(8W-15-2)
(8W-15-4)(8W-15-4) (8W-52-3)
(8W-52-3)
(8W-50-6)(8W-11-2)
PL-RHD8W-50 FRONT LIGHTING 8W - 50 - 3
PLR05002978W-1

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FUSE
BLOCK
SWITCH HORN
OPTICAL
AND
DIMMER
HEADLAMP
37
17FUSE10A
VT20 L43
C10316
L43
20
VT
L43
20
VT
352
SWITCH LEVELING
HEADLAMP
L13
20
BR/YL
10C101
L13
22
BR/YL
Z1
20
BK
S202
Z1
20
BK
21
3
MOTOR LEVELING
HEADLAMP
LEFT
RIGHT
HEADLAMP
LEVELING
MOTOR
31
2
BR/YL22 L13VT22 L43 L43
22
VT2
S133
L43
18
VT
G204G101
S108
Z1
22
BK
Z1
14
BK
BK14Z1
BK22Z1
S117
G103
17
HEADLAMP LEFT
LOW
BEAM
FEED
4E2
20
OR
S210
9
4A
FUSE
9
29
BLOCK FUSE
1
3 HEAD
2 PARK
1 OFF
SWITCH
HEADLAMP
BATT F33
E1
20
TN
(8W-11-2) (8W-50-2)
(8W-11-12)
(8W-15-7)
(8W-15-7) (8W-15-2)(8W-15-2) (8W-15-4)
(8W-15-4)(8W-50-3) (8W-11-11)(8W-11-11)(8W-11-2)(8W-50-2) (8W-11-4)
MM
8W - 50 - 4 8W-50 FRONT LIGHTINGPL-RHD
978W-1PLR05003
3
2 1

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INDEX
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GENERAL INFORMATION
INTRODUCTION......................... 7
DESCRIPTION AND OPERATION
FOG LAMPS (FRONT).................... 8HEADLAMP LEVELING MOTORS............ 8
HEADLAMPS........................... 7
PARKING LAMPS........................ 7
GENERAL INFORMATION
INTRODUCTION
The headlamp switch has 3 positions, ON, PARK
(parking lights) and OFF. Two circuits, L2 and L20
connect the headlamp switch to the headlamp dim-
mer/optical horn switch located in the multi-function
switch. The multi-function switch feeds the low and
high beams of the headlamps.
DESCRIPTION AND OPERATION
PARKING LAMPS
Circuit A3 in the Power Distribution Center (PDC)
connects to a bus bar in the fuse block. One of the
four circuits powered by the bus bar is circuit F33.
Circuit F33 connects to the headlamp switch. A 40
amp fuse in the PDC protects the A3 circuit. A 15
amp fuse, in cavity 2 of the fuse block, protects the
F33 circuit.
The headlamp switch has 3 positions, ON, PARK
(tail lamps) and OFF, plus a dimmer switch. When
the headlamp switch is in the PARK or ON position,
the switch connects circuit F33 to circuit L7. From
the headlamp switch, circuit L7 branches to power
the front parking lamps and rear tail lamps, lavalier
lamps, side marker lamps, and rear license plate
lamp.
GROUND CIRCUIT
Circuit Z1 provides ground for the parking lamps,
headlamps, lavalier lamps, tail lamps, side marker
lamps and rear license plate lamp although different
grounding points are used. Circuit Z1 also provides
the ground path for the headlamps and turn signals.
HELPFUL INFORMATION
²Check for a blown 40 amp fuse in the PDC.
²Check for a blown fuse in cavity 2 of the fuse
block.
²For the left front parking lamp, turn signal, side
marker lamp and left headlamp, the Z1 circuitgrounding point is the left side of the radiator closure
panel.
²For the right front parking lamp, turn signal,
side marker lamp and right headlamp, the Z1 circuit
grounding point is in the right fender side shield.
²Circuit L7 also feeds the radio, if equipped.
²When the headlamp switch is in the PARK or
ON position, the dimmer circuit, F33, also connects
to circuit E1. Circuit E1 powers the ash receiver
lamp, transmission range indicator lamp, instrument
panel cluster illumination lamps, HVAC control
lamp, heated rear window lamp, and radio lamp. A 4
amp fuse, in cavity 12 of the fuse block, protects cir-
cuit E1.
HEADLAMPS
The headlamp switch has 3 positions, ON, PARK
(parking lights) and OFF. Two circuits, L2 and L20
connect the headlamp switch to the headlamp dim-
mer/optical horn switch located in the multi-function
switch. The multi-function switch feeds the low and
high beams of the headlamps.
HEADLAMP SWITCH IN OFF OR PARKING
LAMP POSITION
Circuit A3 originates in the Power Distribution
Center (PDC) and supplies battery voltage for the
headlamp switch. A 40 amp fuse protects the A3 cir-
cuit. The headlamp switch has an internal 24 amp
circuit breaker that connects circuit A3 to either the
L2 or L20 circuits, depending on switch position.
In the OFF and PARK positions the headlamp
switch feeds the L20 circuit that connects to the
multi-function switch. Circuit L20 powers the high
beam circuit when the operator flashes the head-
lamps with the turn signal stalk of the multi-func-
tion switch. When the operator flashes the
headlamps with the stalk, the multi-function switch
connects the L20 circuit to the L3 circuit. The L3 cir-
cuit feeds the high beam of the headlamps.
HEADLAMP SWITCH IN ON POSITION
When the headlamp switch is in the ON position,
it connects the A3 circuit from the PDC to circuit L2.
PL8W - 50 FRONT LIGHTING 8W - 50 - 7

Downloaded from www.Manualslib.com manuals search engine Circuit L2 connects to the multi- function switch and
feeds the L4 circuit (for low beam operation). The L4
circuit connects to a bus bar in the fuse block. Cir-
cuits L43 and L44 connect to the bus bar in fuse
block and power the low beam headlamps. Circuit
L43 supplies voltage to the left headlamp. Circuit
L44 supplies voltage to the right headlamp. Both the
L43 and L44 circuits have separate 10 amp fuses
located in fuse block. Fuse 17 protects circuit L43,
and fuse 18 protects circuit L44.
When the operator selects high beam operation
with the turn signal stalk of the multi-function
switch, circuit L2 connects to the L3 Circuit L3 pow-
ers high beam operation.
HEADLAMP GROUND
Although circuit Z1 provides ground for the right
and left headlamps it has different termination
points for both. For the right headlamp the Z1 circuit
terminates at the right inner fender shield. For the
left headlamp the Z1 circuit terminates at the left
side of the radiator closure panel.
HELPFUL INFORMATION
²Check for a blown fuse in cavity 17 for L43 and
cavity 18 for L44.
²Check the 40 amp fuse located in the PDC.
²The headlamp switch has a 24 amp internal cir-
cuit breaker.
²For the left front parking lamp, turn signal, side
marker lamp and left headlamp, the Z1 circuit
grounding point is the left side of the radiator closure
panel.
²For the right front parking lamp, turn signal,
side marker lamp and right headlamp, the Z1 circuit
grounding point is in the right fender side shield.
HEADLAMP LEVELING MOTORS
The headlamp leveling system used in this vehicle
uses a variable position switch located in the instru-
ment panel along with headlamp leveling motors
located at the headlamps.
Power for the switch and the leveling motors is
supplied on circuit L43. This circuit is HOT when the
headlamp switch is in the ON position and the oper-
ator has selected LOW beam operation. In addition,circuit L43 is protected by a 10 amp fuse located in
the fuse block and is the feed for the left LOW beam
headlamp.
Ground for the switch is supplied on circuit Z1.
When the operator moves the switch, power is sup-
plied on circuit L13 from the switch to the headlamp
leveling motors. Ground for the leveling motors is
supplied on circuit Z1 and has the same termination
point as the respective headlamps.
The headlamp leveling switch also has a lamp
located in it for night illumination. Power for the
lamp is supplied on circuit E2. The E2 circuit is HOT
when the operator has turned the headlamp switch
to the PARK or ON position. The E2 circuit is pro-
tected by a 4 amp fuse located in the fuse block.
FOG LAMPS (FRONT)
The fog lamp system in this vehicle uses a switch
located in the instrument panel along with a relay
located in the Power Distribution Center (PDC).
Power for the switch is supplied on circuit L7. This
circuit is the feed for the front and rear parking
lamps and is HOT when the headlamp switch is in
the PARK position.
Power for the contact side of the relay is supplied
on circuit F61. This circuit is HOT at all times and
protected by a 20 amp fuse in the PDC. Ground for
the coil side of the relay is supplied in circuit Z1.
When the operator turns the lamps ON by closing
the switch, power flows on circuit L7 through the
switch to circuit L35. Circuit L35 connects from the
switch to the coil side of the fog lamp relay. With this
input the contacts in the fog lamp relay CLOSE con-
necting circuits F61 and L39.
Circuit L39 connects from the relay to the fog
lamps. Ground for the lamps is supplied on circuit
Z1.
HELPFUL INFORMATION
²Check the 20 amp fuse located in the PDC for
the fog lamps
²Check the lamp filament
²Check the grounding points for the lamps,
switch and relay
8W - 50 - 8 8W - 50 FRONT LIGHTINGPL
DESCRIPTION AND OPERATION (Continued)

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INDEX
page page
DESCRIPTION AND OPERATION
BACK-UP LAMPS....................... 10
FOG LAMPS (REAR)...................... 9STOP LAMPS.......................... 10
TAIL LAMPS AND LICENSE LAMPS.......... 9
DESCRIPTION AND OPERATION
TAIL LAMPS AND LICENSE LAMPS
Circuit A3 in the Power Distribution Center (PDC)
connects to a bus bar in the fuse block. One of the
four circuits powered by the bus bar is circuit F33. A
40 amp fuse in the PDC protects the A3 circuit. A 15
amp fuse, in cavity number 2 of the fuse block, pro-
tects the F33 circuit.
The headlamp switch has 3 positions, ON, PARK
(tail lamps) and OFF, plus a dimmer switch. When
the headlamp switch is in the PARK or ON position,
it connects circuit F33 to circuit L7. From the head-
lamp switch, circuit L7 branches to power the front
parking lamps, rear tail lamps, side marker lamps,
and rear license plate lamp.
GROUND CIRCUIT
Circuit Z1 provides ground for the tail lamps, park-
ing lamps, headlamps, side marker lamps, lamps and
rear license plate lamps although different grounding
points are used. Circuit Z1 also provides the ground
path for the headlamps, stop lamps and turn signals.
HELPFUL INFORMATION
²Check for a blown 40 amp fuse in the PDC.
²Check for a blown fuse in cavity 2 of the fuse
block
²For the left rear parking lamp, turn signal, side
marker lamp, and the rear license plate the Z1 cir-
cuit grounding point is in the left rear wheel well.
²For the right rear parking lamp, turn signal and
side marker lamp, the Z1 circuit grounding point is
in the right rear wheel well.
²Circuit L7 also feeds the radio, if equipped.
²When the headlamp switch is in the PARK or
ON position, the dimmer circuit, F33, connects to cir-
cuit E1. Circuit E1 powers the ash receiver lamp,
transmission range indicator lamp, instrument panel
cluster illumination lamps, HVAC control lamp,
heated rear window lamp, and radio lamp. A 4 amp
fuse, in cavity 12 of the fuse block, protects circuit
E1.
FOG LAMPS (REAR)
The rear fog lamps will operate only when the
headlamp switch is in the ON position.
Circuit A3 from the Power Distribution Center sup-
plies (PDC) voltage to a bus bar in the fuse block.
Circuit F61 is one of four circuits that the bus bar
feeds and is protected by a 20 amp fuse in cavity 4.
Circuit F61 connects to the rear fog lamp switch and
the front fog lamp relay.
The fog lamp switch contains a relay that supplies
voltage to the fog lamps. Circuit L2 from the multi-
function switch supplies voltage to the coil side of the
relay (only when the headlamps operate on LOW
beam). Circuit F61 supplies voltage to the contact
side of the relay. During LOW beam headlamp oper-
ation when the fog lamp switch contacts CLOSE, cir-
cuit F61 connects to circuit L38.
Circuit L38 feeds right and left fog lamp. Circuit
L38 also feeds the green L.E.D. in the switch that
illuminates during fog lamps operation.
When the headlamp switch is in the PARK or ON
position, circuit E1 from the headlamp switch sup-
plies voltage for circuit E2. Circuit E2 contains a 4
amp fuse in cavity 12 of the fuse block, and powers
the bulb in the fog lamp switch.
GROUND CIRCUIT
Although circuit Z1 provides the ground path for
the fog lamps, the circuit has different grounding
points for each lamp.
Circuit Z3 supplies the ground path for the fog
lamp switch. The grounding point for the headlamp
switch is the instrument panel left center support.
HELPFUL INFORMATION
²Circuit Z1 also supplies ground for side marker
lamps, turn signals, parking lamps and headlamps.
²Circuit A3 from the PDC supplies voltage to the
headlamp switch for circuit L2.
²Circuit F33 from the fuse block supplies voltage
to the headlamp switch for circuit E1. Circuit A3
from the PDC supplies voltage to a bus bar in the
fuse block that feeds the F33 circuit. Fuse 2, in the
fuse block, protects the F33 circuit.
PL8W - 51 REAR LIGHTING 8W - 51 - 9

Downloaded from www.Manualslib.com manuals search engine 978W-1
8W - 80 - 17 PL-RHD 8W-80 CONNECTOR PIN-OUTS
PLR08017
CAV CIRCUIT FUNCTION
1 Z1 18BK GROUND
2 Z2 18BK GROUND
3 G4 18DB FUEL LEVEL SENSOR SIGNAL
4 A141 18DG/WT FUEL PUMP RELAY OUTPUT
LT GRAY
FUEL PUMP
MODULE 41
BLACK
CAV CIRCUIT FUNCTION
1 A142 18DG/OR AUTOMATIC SHUTDOWN RELAY OUTPUT
2 K20 18DG GENERATOR FIELD DRIVER
GENERATOR 21
CAV CIRCUIT FUNCTION
1 M1 22PK FUSED B(+)
2 Z3 20BK/OR GROUND12
GLOVE BOX
LAMP AND SWITCHGRAY
HEADLAMP DIMMER
AND OPTICAL HORN
SWITCH 41BLACK
CAV CIRCUIT FUNCTION
1 L4 14VT/WT DIMMER SWITCH LOW BEAM OUTPUT
2 L2 14LG HEADLAMP SWITCH OUTPUT
3 L3 14RD/OR DIMMER SWITCH HIGH BEAM OUTPUT
4 L20 14LG/WT FUSED B(+)
BLACK
HEADLAMP
SWITCH 1
2
9
73
4
5
6 8
CAV CIRCUIT FUNCTION
1 E1 20TN PANEL LAMPS DIMMER SWITCH SIGNAL
2 L2 14LG HEADLAMP SWITCH OUTPUT
3 M2 22YL TIME OUT RELAY
4 F33 20PK/RD FUSED B(+)
5G26 20LB KEY-IN IGNITION SWITCH SENSEG26 20LB KEY-IN IGNITION SWITCH SENSE
6G16 20BK/LB LEFT FRONT DOOR JAMB SWITCH SENSEG16 20BK/LB LEFT FRONT DOOR JAMB SWITCH SENSE
7 L20 14LG/WT FUSED B(+)
8 A3 12RD/WT FUSED B(+)
9L7 20BK/YL PARK LAMP SWITCH OUTPUT
L7 20BK/YL PARK LAMP SWITCH OUTPUT
CAV CIRCUIT FUNCTION
1Ð Ð
2 L43 20VT LEFT HEADLAMP FEED
3 Z1 20BK GROUND
4 E2 20OR ILLUMINATION FEED
5 L13 20BR/YL HEADLAMP LEVELING SIGNAL TO MOTORSHEADLAMP LEVELING
SWITCH
12 345
BLACK