1997 DODGE NEON starting

Downloaded from www.Manualslib.com manuals search engine WIRING DIAGRAMS
CONTENTS
page page
8W-01 GENERAL INFORMATION....... 8W-01-1
8W-02 COMPONENT INDEX........... 8W-02-1
8W-10 POWER DISTRIBUTION........ 8W-10-1
8W-11 FUSE/FUSE BLOCK............ 8W-11-1
8W-15 GROUND DISTRIBUTION....... 8W-15-1
8W-20 CHARGING SYSTEM........... 8W-20-1
8W-21 STARTING SYSTEM........... 8W-21-1
8W-30 FUEL/IGNITION SYSTEMS...... 8W-30-1
8W-35 ANTI-LOCK BRAKES........... 8W-35-1
8W-40 INSTRUMENT CLUSTER........ 8W-40-1
8W-41 HORNS/CIGAR LIGHTER........ 8W-41-1
8W-42 AIR CONDITIONING-HEATER.... 8W-42-1
8W-43 AIRBAG SYSTEM............. 8W-43-1
8W-44 INTERIOR LIGHTING........... 8W-44-1
8W-47 AUDIO SYSTEMS............. 8W-47-18W-48 REAR WINDOW DEFOGGER..... 8W-48-1
8W-50 FRONT LIGHTING............. 8W-50-1
8W-51 REAR LIGHTING.............. 8W-51-1
8W-52 TURN SIGNALS............... 8W-52-1
8W-53 WIPERS..................... 8W-53-1
8W-60 POWER WINDOWS............ 8W-60-1
8W-61 POWER DOOR LOCKS......... 8W-61-1
8W-62 POWER MIRRORS............ 8W-62-1
8W-64 POWER SUNROOF............ 8W-64-1
8W-70 SPLICE INFORMATION......... 8W-70-1
8W-80 CONNECTOR PIN-OUTS........ 8W-80-1
8W-90 CONNECTOR/GROUND
LOCATIONS...................... 8W-90-1
8W-95 SPLICE LOCATIONS........... 8W-95-1
PLWIRING DIAGRAMS 8W - 1

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 (8) Place a piece of heat shrink tubing over one
side of the wire. Be sure the tubing will be long
enough to cover and seal the entire repair area.
(9) Spread the strands of the wire apart on each
part of the exposed wires.
(10) Push the two ends of wire together until the
strands of wire are close to the insulation.
(11) Twist the wires together.
(12) Solder the connection together using rosin
core type solder only.Do not use acid core solder.
(13) Center the heat shrink tubing over the joint
and heat using a heat gun. Heat the joint until the
tubing is tightly sealed and sealant comes out of both
ends of the tubing
(14) Repeat steps 8 through 13 for each wire.
(15) Re-tape the wire harness starting 1-1/2 inches
behind the connector and 2 inches past the repair.
(16) Re-connect the repaired connector.
(17) Connect the battery, and test all affected sys-
tems.
TERMINAL REPLACEMENT
(1) Disconnect battery.
(2) Disconnect the connector being repaired from
its mating half. Remove connector locking wedge, if
required (Fig. 20).
(3) Remove connector locking wedge, if required
(Fig. 20).
(4) Position the connector locking finger away from
the terminal using the proper pick from special tool
kit 6680. Pull on the wire to remove the terminal
from the connector (Fig. 21) (Fig. 22).
(5) Cut the wire 6 inches from the back of the con-
nector.
(6) Remove 1 inch of insulation from the wire on
the harness side.
(7) Select a wire from the terminal repair assem-
bly that best matches the color wire being repaired.(8) Cut the repair wire to the proper length and
remove 1 inch of insulation.
(9) Place a piece of heat shrink tubing over one
side of the wire. Make sure the tubing will be long
enough to cover and seal the entire repair area.
(10) Spread the strands of the wire apart on each
part of the exposed wires.
(11) Push the two ends of wire together until the
strands of wire are close to the insulation.
(12) Twist the wires together.
(13) Solder the connection together using rosin
core type solder only.Do not use acid core solder.
(14) Center the heat shrink tubing over the joint
and heat using a heat gun. Heat the joint until the
tubing is tightly sealed and sealant comes out of both
ends of the tubing.
(15) Insert the repaired wire into the connector.
(16) Install the connector locking wedge, if
required, and reconnect the connector to its mating
half/component.
(17) Re-tape the wire harness starting 1-1/2 inches
behind the connector and 2 inches past the repair.
(18) Connect battery, and test all affected systems.
Fig. 20 Connector Locking Wedge Tab (Typical)
Fig. 21 Terminal Removal
Fig. 22 Terminal Removal Using Special Tool
8W - 01 - 10 8W - 01 GENERAL INFORMATIONPL
SERVICE PROCEDURES (Continued)

Downloaded from www.Manualslib.com manuals search engine 8W-21 STARTING SYSTEM
INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
DESCRIPTION AND OPERATION.......................................................... 3
Component Page
Battery............................8W-21-2
Clutch Pedal Position Switch...........8W-21-2
Engine Starter Motor.................8W-21-2
Engine Starter Motor Relay............8W-21-2
Fuse 11 (PDC).......................8W-21-2
Fusible Link........................8W-21-2
G101..............................8W-21-2
Generator..........................8W-21-2Component Page
Ignition Switch......................8W-21-2
Park/Neutral Position Switch...........8W-21-2
Power Distribution Center.............8W-21-2
Powertrain Control Module.............8W-21-2
S106..............................8W-21-2
S107..............................8W-21-2
S125..............................8W-21-2
S127..............................8W-21-2
8W - 21 - 2 8W - 21 STARTING SYSTEMPL

Downloaded from www.Manualslib.com manuals search engine 3130
2728
T40
14
BR
ENGINE
STARTER
MOTOR
RELAY
(IN PDC)
10
3 ACC 0 OFF
2 RUN
1 START
SWITCH
IGNITION BATT A1
YL/BK14 A41
M/T A/T
A41
14
YL
1C101
YL14 A412
1
SWITCH POSITION
PEDAL
CLUTCH
T141
14
YL/RD
BK18Z1
A/T M/T
Z1
18
BK
G101MOTOR STARTER
ENGINE
BR14 T40
30A
FUSE
11
11
A0
6
RD
CENTER DISTRIBUTION
POWER
1 2
A0
8
RD
BATTERY
1 PULL-IN
2 HOLD-IN S125
BK/GY8 A11
BK12 A11
GENERATOR
SENSE SWITCH POSITIONNEUTRALPARK/
MODULE
CONTROL
POWERTRAIN
S106
T41
18
BR/YL
T41
20
BR/YL
T41
20
BR/YL
76C1
PARK/
NEUTRAL
POSITION
SWITCH
2
1C160
LINK FUSIBLE
S107
3
0 2 1
8C241
A41
14
YL/BK
3C241
Z1
18
BK
S127
A41
14
YL/BK
12
(8W-10-5)
(8W-15-2)(8W-10-5)(8W-10-4) (8W-10-5)
(8W-20-2)
(8W-20-2)
(8W-30-12)
(8W-15-2)
M
8W - 21 - 2 8W-21 STARTING SYSTEMPL-RHD
PL8W - 21 STARTING SYSTEM 8W - 21 - 3
DESCRIPTION AND OPERATION (Continued)

Downloaded from www.Manualslib.com manuals search engine 8W-21 STARTING SYSTEM
DESCRIPTION AND OPERATION
STARTING SYSTEM- MANUAL TRANSMISSION
The Power Distribution Center (PDC) supplies bat-
tery voltage to the engine starter motor solenoid
through circuit T40 when the coil side of the engine
starter motor relay energizes. Circut A1 supplies the
battery voltage for the contact side of the relay. Cir-
cuit A1 and circuit T40 are protected by a 30 amp
fuse and feeds the contact side of the engine starter
motor relay. Both the 30 amp fuse and the engine
starter motor relay are located in the PDC.
The ignition switch supplies battery voltage to the
coil side of the engine starter motor relay on circuit
A41 when the key is moved to the START position
and the operator has pressed the clutch pedal to
CLOSE the clutch pedal position switch. Circuit Z1
supplies the ground for the coil side of the engine
starter motor relay. When the coil side of the relay
energizes, the contacts CLOSE, supplying battery
voltage to the engine starter motor solenoid.
Circuit A0 (battery positive cable) supplies battery
voltage to the motor of the starter when the solenoid
energizes.
HELPFUL INFORMATION
²Check for blown engine starter motor fuse in the
PDC.
²Move ignition key to the START position and
with the clutch pedal pressed, listen for starter motor
relay to click. The engine starter motor relay is
located in the PDC.
²Check for a good ground at starter motor.
²The left headlamp ground is the end point for
the starter relay coil ground circuit and is located at
the left side of the radiator closure panel.
STARTING SYSTEM (AUTOMATIC TRANSMISSION)
The Power Distribution Center (PDC) supplies bat-
tery voltage to the engine starter motor solenoid
through circuit T40 when the coil side of the engine
starter motor relay energizes. Circuit A1 supplies
battery voltage to the contact side of the relay. Cir-
cuit A1 and circuit T40 are protected by a 30 amp
fuse and feeds the contact side of the engine starter
motor relay. Both the 30 amp fuse and the engine
starter motor relay are located in the PDC.
The ignition switch supplies battery voltage to the
coil side of the engine starter motor relay on circuit
A41 when the key is moved to the START position
and the park/neutral portion of the park/neutral posi-
tion switch (3 speed transmission) is CLOSED.
Ground for the coil side of the engine starter motor
relay is supplied by circuit T41.Circuit A0 (battery positive cable) supplies battery
voltage to the motor of the engine starter when the
solenoid energizes.
HELPFUL INFORMATION
²Check for blown engine starter motor fuse in the
PDC.
²With the gear selector in the Park or Neutral
position, move ignition key to the START position
and listen for engine starter motor relay to click. The
engine starter motor relay is located in the PDC.
²Check for a good ground at engine starter motor.
PL8W - 21 STARTING SYSTEM 8W - 21 - 3

Downloaded from www.Manualslib.com manuals search engine ODOMETER
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)