fuses DODGE NEON 1997 1.G Wiring Diagrams Workshop Manual

Downloaded from www.Manualslib.com manuals search engine (3) Connect the other lead to the other end of the
circuit being tested. Low or no resistance means good
continuity.
TESTING FOR A SHORT TO GROUND
(1) Remove the fuse and disconnect all items
involved with the fuse.
(2) Connect a test light or a voltmeter across the
terminals of the fuse.
(3) Starting at the fuse block, wiggle the wiring
harness about six to eight inches apart and watch
the voltmeter/test lamp.
(4) If the voltmeter registers voltage or the test
lamp glows, there is a short to ground in that gen-
eral area of the wiring harness.
TESTING FOR A SHORT TO GROUND ON
FUSES POWERING SEVERAL LOADS
(1) Refer to the wiring diagrams and disconnect or
isolate all items on the fused circuit.
(2) Replace the blown fuse.
(3) Supply power to the fuse by turning ON the
ignition switch or re-connecting the battery.
(4) Start connecting the items in the fuse circuit
one at a time. When the fuse blows the circuit with
the short to ground has been isolated.
TESTING FOR A VOLTAGE DROP
(1) Connect the positive lead of the voltmeter to
the side of the circuit closest to the battery (Fig. 12).
(2) Connect the other lead of the voltmeter to the
other side of the switch or component.
(3) Operate the item.(4) The voltmeter will show the difference in volt-
age between the two points.
TROUBLESHOOTING WIRING PROBLEMS
When troubleshooting wiring problems there are
six steps which can aid in the procedure. The steps
are listed and explained below. Always check for non-
factory items added to the vehicle before doing any
diagnosis. If the vehicle is equipped with these items,
disconnect them to verify these add-on items are not
the cause of the problem.
(1) Verify the problem.
(2) Verify any related symptoms. Do this by per-
forming operational checks on components that are
in the same circuit. Refer to the wiring diagrams.
(3) Analyze the symptoms. Use the wiring dia-
grams to determine what the circuit is doing, where
the problem most likely is occurring and where the
diagnosis will continue.
(4) Isolate the problem area.
(5) Repair the problem.
(6) Verify proper operation. For this step check for
proper operation of all items on the repaired circuit.
Refer to the wiring diagrams.
SERVICE PROCEDURES
WIRING REPAIR
When replacing or repairing a wire, it is important
that the correct gauge be used as shown in the wir-
ing diagrams. The wires must also be held securely
in place to prevent damage to the insulation.
(1) Disconnect battery negative cable
Fig. 11 Testing for Continuity
Fig. 12 Testing for Voltage Drop
PL8W - 01 GENERAL INFORMATION 8W - 01 - 7
DIAGNOSIS AND TESTING (Continued)

Downloaded from www.Manualslib.com manuals search engine 8W-02 COMPONENT INDEX
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

Downloaded from www.Manualslib.com manuals search engine COMBINATION FLASHER INPUT L55 20BK/YL
A1
FUNCTION CIRCUIT CAVITYCOMBINATION FLASHER (A)
A2L32 20PK COMBINATION FLASHER OUTPUTGROUND Z2 20BK/LG
A3
20 18 10
2
19
17 16
15
14
1311
12
9
8
7
6
5
3
1
FUSED CIRCUIT FEED CIRCUIT AMPS FUSE NO.FUSES
G5 20DB/WT
- -- - 10A 15A 15A
L44 20VT/RD L43 20VT 10AX12 20RD/WT 10A 20A F13 18DB
20A F10 18YL/RD-- 5A
E2 20OR 10A 4A E2 20OR
F15 18DB/WT F20 20WT 10AC1 14DG 25A 10A L5 20BK
10A F20 20WT
20A F35 16RD/YLF33 20PK/RD
F38 16RD 15A A3 12RD/WT
A3 12RD/WT
A3 12RD/WT
A22 12BK/OR
A22 12BK/OR
A22 12BK/OR
A22 12BK/OR
E1 20TN
A21 14DB
A21 14DB
A21 14DB
A31 14BK/WT
A31 14BK/WT
A31 14BK/WT
L4 14VT/WT
L4 14VT/WTG5 20DB/WT
CAVITY CIRCUIT FUNCTION
CIGAR LIGHTER RELAY (B)
B1Z1 20BK GROUND
B2F38 16RD CIGAR LIGHTER FEED
B2F38 18RD CATALYST TEMP SENSOR FEED
B3
B5F38 18RD F13 18DB
CIGAR LIGHTER FEED FUSE BLOCK FEED TO CIGAR LIGHTER RELAY
PL-RHD8W-11 FUSE BLOCK 8W - 11 - 3
PLR01102978W-1

Downloaded from www.Manualslib.com manuals search engine 8W-35 ANTI-LOCK BRAKES
INDEX
page page
DESCRIPTION AND OPERATION
ABS PUMP MOTOR RELAY................ 6
ABS SYSTEM RELAY..................... 6
ABS WARNING LAMP..................... 6
ANTI-LOCK BRAKES..................... 6BRAKE SWITCH INPUT................... 7
DATA LINK CONNECTOR.................. 7
HELPFUL INFORMATION.................. 7
HYDRAULIC MODULATOR................. 6
WHEEL SPEED SENSORS................. 7
DESCRIPTION AND OPERATION
ANTI-LOCK BRAKES
Power for the Anti-Lock brake system is supplied
by two fuses. There is a 15 amp fuse located in the
fuse block cavity 10. This fuse supplies power to the
Controller Anti Lock Brake (CAB), and the ABS sys-
tem relay on the F12 circuit. The F12 circuit also
supplies power to the Powertrain Control Module
(PCM). Power for the fuse is supplied on the A21 cir-
cuit from the ignition switch. This fuse is HOT in the
START/RUN position.
The second fuse is located in the Power Distribu-
tion Center (PDC). It is a 40 amp fuse. This fuse is
HOT at all times and supplies power to the contact
side of the ABS pump motor relay.
There are three grounding points used in the ABS
system. One is a case ground on the CAB. The sec-
ond is the Z12 circuit at the CAB connector cavity 5.
This ground is spliced, and terminates at the left side
of the radiator closure panel.
The third ground is on the Z1 circuit. This ground
is used for the ABS hydraulic modulator, ABS system
relay, and the ABS pump motor. This ground, like the
Z12 ground splices and terminates at the left head-
lamp ground.
Additional information on the circuit function of
the ABS system is listed below. For diagnostic and
testing procedures, refer to the appropriate section of
the Service Manual or the Diagnostic Test Proce-
dures Manual.
ABS WARNING LAMP
The ABS warning lamp is an output from the Con-
troller Anti Lock Brake (CAB) and the ABS relay
box. It is used to alert the operator of a problem in
the ABS system. The G19 circuit from the CAB and
the ABS system relay is used to detect a problem. If
a problem is detected, the CAB grounds the G19 cir-
cuit and illuminates the lamp in the instrument clus-
ter.
Circuit G19 is also an output of the CAB to the
ABS system relay contact side.
ABS SYSTEM RELAY
The system relay is used for the operation of the
ABS system. Power for the relay is supplied on the
B57 circuit from cavity 57 of the Controller Anti Lock
Brake (CAB).
Ground for the relay is on the Z1 circuit. This
ground is spliced in with the pump motor and termi-
nates at the left headlamp ground.
When the system is operating normally power for
the contact side of the relay is supplied from the
CAB on the B57 circuit. It passes through the relay
to the Z1 ground and terminates at the left headlamp
ground. If a problem is detected in the system, the
contact side of the relay switches from the Z1 to the
F12 circuit. This causes the ABS warning lamp in
the instrument cluster to illuminate.
ABS PUMP MOTOR RELAY
The ABS pump motor relay controls when the
pump motor runs. Power for the coil side of the relay
is supplied from cavity 47 of the Controller Anti Lock
Brake (CAB) on the B47 circuit. This circuit also sup-
plies voltage for the contact side of the system relay.
The ground side of the coil is controlled by the B116
circuit. Circuit B116 connects to cavity 16 of the CAB
connector.
Circuit B120 from cavity 20 of the CAB connector
powers the ABS pump motor. This circuit is also used
as an input to the CAB for pump motor monitoring.
HYDRAULIC MODULATOR
The hydraulic modulator is used for the controlling
of the brake system pressure to the wheels. The mod-
ulator is made up of four solenoids.
Circuits involved are, B142 for the left front wheel,
B143 for the right front wheel, B146 for the left rear
wheel, and B148 for the right rear wheel.
The solenoids use a common ground on the Z1 cir-
cuit. There are two Z1 circuits from the modulator.
Both of these grounds terminate at the left headlamp
ground, and are spliced in with the ABS pump motor
and the ABS system relay.
8W - 35 - 6 8W - 35 ANTI-LOCK BRAKESPL

Downloaded from www.Manualslib.com manuals search engine 8W-42 AIR CONDITIONING-HEATER
INDEX
page page
DESCRIPTION AND OPERATION
A/C OPERATION......................... 6
AIR CONDITIONING-HEATER SYSTEM....... 6BLOWER MOTOR OPERATION............. 6
HELPFUL INFORMATION.................. 7
RADIATOR FAN OPERATION............... 6
DESCRIPTION AND OPERATION
AIR CONDITIONING-HEATER SYSTEM
The A/C-Heater System is powered by a by several
fuses. Fuse 10, a 15 amp fuse located in the fuse
block, is HOT in the RUN position. This fuse powers
the coil side of the A/C compressor clutch relay
located in the Power Distribution Center (PDC).
A 30 amp fuse, on circuit A16 located in the PDC,
powers the solid state radiator fan relay. This fuse is
HOT at all times. The 10 amp fuse on circuit A17
located in the PDC powers the contact side of the A/C
compressor clutch relay.
The A/C-Heater blower motor is protected by a 25
amp fuse located in cavity 7 of the fuse block. This
fuse in HOT in the RUN position only. When the
ignition switch is in the RUN position, power is sup-
plied to the fuse on circuit A22. The power leaves the
fuse on circuit C1 and goes directly to the blower
motor.
There is a 4 amp fuse located in cavity 12 of the
fuse block used for the illumination lamps in the A/C-
Heater control. The fuse is HOT at all times.
A/C OPERATION
When the A/C or the defrost switch is put in the
ON position, and the A/C cycling switch, low pressure
cut-out switch, and the high pressure switch are
CLOSED, the Powertrain Control Module (PCM)
receives a request for A/C.
After receiving this input, the PCM activates the
A/C compressor by grounding the C28 circuit on the
coil side of the A/C Compressor Clutch relay. Power
for the coil side of the relay is supplied on the bus
bar located in the Power Distribution Center (PDC).
With the coil energized, current flows from the 10
amp fuse in the PDC on circuit A17 through the
CLOSED contacts in the relay, on the C3 circuit to
the A/C compressor clutch.
The A/C compressor clutch receives this voltage
and creates a magnetic field energizing the clutch.
Ground for the coil is provided at the right headlamp
ground.
The connector at the A/C compressor has a diode
located in it. This diode is used to control the inducedvoltage resulting from the magnetic field collapsing
when the clutch is disengaged. The diode provides a
path for the voltage to protect other components and
systems.
The A/C compressor clutch relay is also used by the
PCM to disengage the compressor in a Wide Open
Throttle (W.O.T.) condition.
RADIATOR FAN OPERATION
The radiator fan system used in this vehicle uses a
solid state relay that controls the speed of the radia-
tor fan.
Power for the relay is supplied on circuit A16 This
circuit is HOT at all times and protected by a 30 amp
fuse located in the Power Distribution Center (PDC).
Ground for the coil side of the relay is controlled by
the Powertrain Control Module (PCM). When the
PCM determines the need for fan operation the PCM
supplies the ground path for circuit K173. This cir-
cuit connects to cavity 18 of the PCM connector.
From the relay circuit C25 connects to the radiator
fan motor(s). On vehicles equipped with the manual
transmission only one radiator fan is used. For vehi-
cles equipped with an automatic transmission there
are two radiator fans used.
Ground for the radiator fans is supplied on circuit
Z1.
BLOWER MOTOR OPERATION
With the ignition switch in the RUN position,
power flows from the 25 amp fuse, in cavity 7 of the
fuse block, to the blower motor. Blower motor speed
is controlled by the fan control switch located in the
instrument panel, and the resistor block.
Blower motor LOW speed operation is accom-
plished on the C4 circuit. When the control switch is
moved to the LOW speed position, current is passed
on the C7 circuit through the blower motor resistor
to the C4 circuit. It then flows through the blower
motor switch to the Z8 circuit. The Z8 circuit termi-
nates at a grounding point on the instrument panel
left center support.
The operation of the blower motor M1 and M2
speed operations is the same as the LOW speed
8W - 42 - 6 8W - 42 AIR CONDITIONING-HEATERPL

Downloaded from www.Manualslib.com manuals search engine 8W-43 AIRBAG SYSTEM
DESCRIPTION AND OPERATION
AIRBAG CONTROL MODULE (ACM)
Two different circuits supply battery voltage from
the fuse block to the Airbag Control Module (ACM),
F15 and F25. The F15 and F25 circuits are connected
to separate bus bars internal to the fuse block. Dif-
ferent circuits from the Power Distribution Center
(PDC) and ignition switch supply battery voltage to
the fuse block bus bars.
The F25 circuit supplies battery voltage to the
ACM only when the ignition switch is in the RUN
position. The F15 circuit powers the ACM when the
ignition switch is in either the START or RUN posi-
tion.
An internal bus bar in the ignition switch connects
the A1 circuit from the PDC to the A21 circuit when
the switch is either the START or RUN position. The
A21 circuit supplies battery voltage to the bus bar in
the fuse block that feeds the F15 circuit. A 30 amp
fuse in the PDC protects the A1 and A21 circuits. A
10 amp fuse in the fuse block, cavity 9, protects the
F15 circuit.
When the ignition switch is in the RUN position, it
connects the A2 circuit from the PDC to the A22 cir-
cuit. The A22 circuit supplies battery voltage to the
fuse block bus bar that feeds the F25 circuit. A 40
amp fuse in the PDC protects the A2 and A22 cir-
cuits. A 10 amp fuse in the fuse block, cavity 5, pro-
tects the F25 circuit.
Circuits D1 and D2 are connected to the CCD Bus
and the ACM. The CCD bus is used to provide com-
munications between modules and the universal data
link connector.
The ACM has a case ground and an external dedi-
cated ground, circuit Z6. The dedicated ground con-
nects to the instrument panel right center support.
AIRBAG IMPACT SENSOR
The Airbag system uses a sensor internal to the
Airbag Control Module (ACM) to detect impact. For
information regarding operation of this sensor, refer
to the appropriate group of the Service Manual.
AIRBAG SQUIB (AIRBAG IGNITER)
DRIVERS SIDE AIRBAG
Two circuits, R43 and R45, connect the ACM to the
drivers side airbag module squib (igniter) after pass-
ing through the clock spring connector. Circuit R43
from cavity 3 of the ACM 4-way connector connects
to the squib. Circuit R45 from cavity 4 of the ACM
4-way connector connects to the squib. R43 and R45
are a twisted pair of wires.
PASSENGERS SIDE AIRBAG
Two circuits, R42 and R44, connect the ACM to the
passengers side airbag module squib (igniter). Circuit
R42 from cavity 1 of the ACM 4-way connector con-
nects to the squib. Circuit R44 from cavity 2 of the
ACM 4- way connector connects to the squib. R42
and R44 are a twisted pair of wires.
Circuits R50 and R51 are connected from the ACM
to the passangers airbag. These circuits are used to
monitor the pressure switch.
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.
HELPFUL INFORMATION
²Check for blown fuses in the circuit that connect
to the ignition switch and those that connect to the
ACM.
²While the bus bars in the fuse block power the
ACM, they also feed additional components on sepa-
rate fuse protected circuits.
²The ACM has a case ground and an external
dedicated ground. The dedicated ground connects to
the instrument panel right center support.
PL8W - 43 AIRBAG SYSTEM 8W - 43 - 5

Downloaded from www.Manualslib.com manuals search engine 8W-47 AUDIO SYSTEMS
INDEX
page page
DESCRIPTION AND OPERATION
HELPFUL INFORMATION.................. 5
RADIO ILLUMINATION.................... 5RADIO MEMORY........................ 5
RADIO OPERATION...................... 5
SPEAKERS............................. 5
DESCRIPTION AND OPERATION
RADIO OPERATION
When the ignition switch is in either the ACCES-
SORY or RUN position, it connects circuit A1 from
the Power Distribution Center (PDC) to circuit A31.
Circuit A31 powers a bus bar in the fuse block. The
bus bar feeds two circuits, one of which is circuit
X12. Circuit X12 powers the radio. A 10 amp fuse, in
cavity 16 of the fuse block, protects circuit X12.
Circuit Z9 supplies the ground path for the radio.
The grounding point for circuit Z9 is the instrument
panel right center support.
RADIO MEMORY
Circuit M1 from the Power Distribution Center
(PDC) supplies power for the radio memory. The cir-
cuit contains the Ignition Off Draw (IOD) fuse. The
IOD fuse is removed during vehicle shipping to pre-
vent excessive battery draw.
RADIO ILLUMINATION
When the parking lamps or headlamps are ON, cir-
cuits E2 and L7 power the radio illumination lamps
and park lamps. Circuit E2 feeds the illumination
lamp. Circuit L7 feeds the park lamps of the radio.
Circuit F33 feeds circuit L7.
A 4 amp fuse, in cavity 12 of the fuse block, pro-
tects circuit E2. A 15 amp fuse, in cavity 2 of the fuse
block, protects circuits L7 and F33.
SPEAKERS
Circuit X53 feeds the speaker in the left front door.
Circuit X55 is the return from the speaker to the
radio. On the premium system the X53 and X55 cir-
cuits are connected in with the instrument panel
speaker.
Circuit X54 feeds the speaker in the right front
door. Circuit X56 is the return from the speaker to
the radio. On the premium system the X54 and X56
circuits are connected in with the instrument panel
speaker.
Circuit X51 feeds the left rear speaker. Circuit X57
is the return from the speaker to the radio.Circuit X52 feeds the right rear speaker. Circuit
X58 is the return from the speaker to the radio.
HELPFUL INFORMATION
²Circuit M1 also powers the vanity lamps, glove
box lamp, time delay relay, dome lamps, underhood
lamp, cargo lamp, and power mirrors.
²If the radio does not operate, check for blown
fuses in circuits A1 and X12.
²Circuits A3, and F33 feed the L7 circuit.
²If the radio illumination lamps do not operate,
check for blown fuses in circuits E2, F33, and A3.
PL8W - 47 AUDIO SYSTEMS 8W - 47 - 5

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)

Downloaded from www.Manualslib.com manuals search engine STOP LAMPS
Circuit F32 in the Power Distribution Center
(PDC) feeds the stop lamps. Circuit F32 connects to
the stop lamp switch. A 15 amp fuse in the PDC pro-
tects circuit F32.
When the operator presses the brake pedal, the
stop lamp switch CLOSES and connects circuit F32
to circuit L50. Circuit L50 connects to the stop
lamps. Circuit L50 also splices to power the CHMSL
lamp.
GROUND CIRCUIT
Circuit Z1 provides ground for the stop lamps,
CHMSL lamp, and the stop lamp switch. The Z1 cir-
cuit has more than one grounding point. It also sup-
plies ground path for the tail lamps, parking lamps,
headlamps, side marker lamps, rear license plate
lamp, back-up lamps and turn signals.
HELPFUL INFORMATION
²Check for blown fuses in circuit F32 (in PDC).
²Check for continuity across the stop lamp switch
when it is CLOSED.
²For rear lighting on the left side of the vehicle,
the Z1 circuit grounding point is in the left rear
wheel well.
²For rear lighting on the right side of the vehicle,
the Z1 circuit grounding point is in the right rear
wheel well.
²For the stop lamp switch, the Z1 circuit ground-
ing point is in the left front inner fender shield.
BACK-UP LAMPS
In the RUN position, the ignition switch connects
circuit A2 from the Power Distribution Center (PDC)to circuit A22. Circuit A22 feeds a bus bar in the fuse
block. A 40 amp fuse in the PDC protects the A2 and
A22 circuits.
Circuit F20 is one of four circuits that connects to
the fuse block bus bar fed by circuit A22. Circuit F20
supplies power to the back-up lamp switch. On 3±spd
automatic transaxle vehicles, the back-up lamp
switch is part of an assembly that includes the park/
neutral position switch.
When the operator puts the transmission in
REVERSE, the back-up lamp switch connects circuit
F20 to circuit L1. Circuit L1 feeds the back-up lamps.
A 10 amp fuse, in cavity 8 of the fuse block, protects
F20 and L1 circuits.
GROUND CIRCUIT
Circuit Z1 provides ground for the back-up lamps.
The Z1 circuit has more than one grounding point. It
also supplies ground path for the tail lamps, parking
lamps, headlamps, side marker lamps, rear license
plate lamp, stop lamps and turn signals.
HELPFUL INFORMATION
²Check for blown fuses in circuits A2 and F20.
²Check for continuity across the stop lamp switch
when it is CLOSED.
²For rear lighting on the left side of the vehicle,
the Z1 circuit grounding point is in the left rear
wheel well.
²For rear lighting on the right side of the vehicle,
the Z1 circuit grounding point is in the right rear
wheel well.
²Circuit F20 feeds the heated rear window switch
and A/C clutch cycling switch.
8W - 51 - 10 8W - 51 REAR LIGHTINGPL
DESCRIPTION AND OPERATION (Continued)

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DESCRIPTION AND OPERATION
HELPFUL INFORMATION.................. 3POWER WINDOWS...................... 3
DESCRIPTION AND OPERATION
POWER WINDOWS
The power window system is supplied power from
the 30 amp circuit breaker located behind the fuse
block. Power for the circuit breaker is supplied on
circuit A22 from the ignition switch. This circuit is
HOT when the ignition switch is in the RUN posi-
tion.
Power for the A22 circuit is supplied by the A2 cir-
cuit which is HOT at all times and protected by a
40-amp fuse located in the Power Distribution Center
(PDC). The A22 is spliced and supplies power for the
fuses that protect the Airbag, A/C-Heater blower
motor, turn signals, and the heated rear window.
Circuit F21 connects, from the circuit breaker, to
both window switches. This is the feed for the
switches. Both switches use a BUS bar to provide
power for the different functions of the switch.
The ground path for the system is through master
window switch on the Z8 circuit. The grounding point
is located at the instrument panel left center support
brace.
MASTER WINDOW SWITCH (LEFT WINDOW
OPERATION)
When the window switch is moved to the window
DOWN position, voltage is supplied on the F21 cir-
cuit through the CLOSED contacts in the switch to
the Q21 circuit. The Q21 circuit connects from the
switch to the left front window motor. Grounding is
provided on circuit Q11 from the motor back to the
switch. The ground is passed through the switch to
the Z8 circuit. The Z8 circuit goes to its grounding
point.
When window UP operation is selected, the power
and ground circuits are reversed. Circuit Q11 is the
feed and circuit Q21 is the ground.
MASTER WINDOW SWITCH (RIGHT WINDOW
OPERATION)
When the window switch is moved to the window
DOWN position, voltage is supplied on the F21 cir-
cuit through the CLOSED contacts in the switch to
the Q26 circuit. The Q26 circuit connects from the
master switch to the right window switch. A BUS barinternal to the right switch passes the voltage
through the switch to circuit Q22. Circuit Q22 con-
nects from the switch to the right window motor.
Grounding is provided on circuit Q12 from the motor
back to the right switch.
The ground is passed through the switch on a BUS
bar to circuit Q16. Circuit Q16 then goes to the mas-
ter switch. The ground is passed through the switch
to the Z8 circuit. The Z8 circuit attaches to its
grounding point.
When window UP operation is selected, the power
and ground circuits are reversed. Circuits Q12 and
Q16 are the feeds and circuits Q22 and Q26 are the
grounds.
RIGHT WINDOW SWITCH OPERATION
When the window switch is moved to the window
DOWN position, voltage is supplied on the F21 cir-
cuit through the CLOSED contacts in the switch to
the Q22 circuit. The Q22 circuit connects from the
switch to the right front window motor. Grounding is
provided on circuit Q12 from the motor back to the
switch. The ground is passed through the switch to
the Q16 circuit. The Q16 circuit connects from the
right switch to the master switch. Ground is passed
through the master switch to the Z8 circuit. The Z8
circuit goes to its grounding point.
When window UP operation is selected, the power
and ground circuits are reversed. Circuit Q12 is the
feed and circuit Q22 is the ground.
HELPFUL INFORMATION
²Check the 40 amp fuse located in the PDC.
²Check the 30 amp circuit breaker located behind
the fuse block.
²Check the ground at the instrument panel left
center support.
PL8W - 60 POWER WINDOWS 8W - 60 - 3