1999 DODGE NEON ignition

WIRING DIAGRAMS
CONTENTS
page page
AIR CONDITIONING-HEATER.......... 8W-42-1
AIRBAG SYSTEM................... 8W-43-1
ANTI-LOCK BRAKES................. 8W-35-1
AUDIO SYSTEMS................... 8W-47-1
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 SYSTEMS............ 8W-30-1
FUSE BLOCK....................... 8W-11-1
GENERAL INFORMATION............. 8W-01-1
GROUND DISTRIBUTION............. 8W-15-1
HORN/CIGAR LIGHTER............... 8W-41-1INSTRUMENT CLUSTER.............. 8W-40-1
INTERIOR LIGHTING................. 8W-44-1
POWER DISTRIBUTION.............. 8W-10-1
POWER DOOR LOCKS............... 8W-61-1
POWER MIRRORS.................. 8W-62-1
POWER SUNROOF.................. 8W-64-1
POWER WINDOWS.................. 8W-60-1
REAR LIGHTING.................... 8W-51-1
REAR WINDOW DEFOGGER........... 8W-48-1
SPLICE INFORMATION............... 8W-70-1
SPLICE LOCATIONS................. 8W-95-1
STARTING SYSTEM................. 8W-21-1
TURN SIGNALS..................... 8W-52-1
WIPERS........................... 8W-53-1
PLWIRING DIAGRAMS 8W - 1

8W-01 GENERAL INFORMATION
INDEX
page page
DESCRIPTION AND OPERATION
CIRCUIT FUNCTIONS..................... 4
CIRCUIT INFORMATION................... 4
CONNECTOR INFORMATION............... 7
ELECTROSTATIC DISCHARGE (ESD)
SENSITIVE DEVICES.................... 8
INTRODUCTION......................... 1
NOTES, CAUTIONS, and WARNINGS......... 7
SECTION IDENTIFICATION................. 5
SPLICE LOCATIONS...................... 7
SYMBOLS.............................. 5
TAKE OUTS............................. 8
TERMINOLOGY.......................... 7
DIAGNOSIS AND TESTING
INTERMITTENT AND POOR CONNECTIONS.... 9TROUBLESHOOTING TESTS................ 9
TROUBLESHOOTING TOOLS............... 8
TROUBLESHOOTING WIRING PROBLEMS.... 10
SERVICE PROCEDURES
CONNECTOR AND TERMINAL REPLACEMENT . 12
CONNECTOR REPLACEMENT.............. 12
DIODE REPLACEMENT................... 14
TERMINAL REPLACEMENT................ 13
TERMINAL/CONNECTOR REPAIR-MOLEX
CONNECTORS........................ 10
TERMINAL/CONNECTOR REPAIRÐTHOMAS
AND BETTS CONNECTORS.............. 11
WIRING REPAIR........................ 10
SPECIAL TOOLS
WIRING/TERMINAL...................... 15
DESCRIPTION AND OPERATION
INTRODUCTION
Chrysler wiring diagrams are designed to provide
information regarding the vehicles wiring content. In
order to effectively use Chrysler wiring diagrams to
diagnose and repair a Chrysler vehicle, it is impor-
tant to understand all of their features and charac-
teristics.
Diagrams are arranged such that the power (B+)
side of the circuit is placed near the top of the page,
and the ground (B-) side of the circuit is placed near
the bottom of the page.
All switches, components, and modules are shown
in the at rest position with the doors closed and the
key removed from the ignition.Components are shown two ways. A solid line
around a component indicates that the component is
complete. A dashed line around a component indi-
cates that the component being shown is not com-
plete. Incomplete components have a reference
number to indicate the page where the component is
shown complete.
It is important to realize that no attempt is made
on the diagrams to represent components and wiring
as they appear on the vehicle. For example, a short
piece of wire is treated the same as a long one. In
addition, switches and other components are shown
as simply as possible, with regard to function only.
PL8W - 01 GENERAL INFORMATION 8W - 01 - 1

CIRCUIT INFORMATION
Each wire shown in the diagrams contains a code
which identifies the main circuit, part of the main
circuit, gage of wire, and color (Fig. 1)
CIRCUIT FUNCTIONS
All circuits in the diagrams use an alpha/numeric
code to identify the wire and its function. To identify
which circuit code applies to a system, refer to the
Circuit Identification Code Chart. This chart shows
the main circuits only and does not show the second-
ary codes that may apply to some models.
Fig. 1 Wire Code Identification
COLOR CODE COLORSTANDARD
TRACER
COLOR
BL BLUE WT
BK BLACK WT
BR BROWN WT
DB DARK BLUE WT
DG DARK GREEN WT
GY GRAY BK
LB LIGHT BLUE BK
LG LIGHT GREEN BK
OR ORANGE BK
PK PINK BK or WT
RD RED WT
TN TAN WT
VT VIOLET WT
WT WHITE BK
YL YELLOW BK
* WITH TRACER
CIRCUIT FUNCTION
A BATTERY FEED
B BRAKE CONTROLS
C CLIMATE CONTROLS
D DIAGNOSTIC CIRCUITS
E DIMMING ILLUMINATION CIRCUITS
F FUSED CIRCUITS
G MONITORING CIRCUITS (GAUGES)
H OPEN
I NOT USED
J OPEN
K POWERTRAIN CONTROL MODULE
L EXTERIOR LIGHTING
M INTERIOR LIGHTING
N NOT USED
O NOT USED
P POWER OPTION (BATTERY FEED)
Q POWER OPTIONS (IGNITION FEED)
R PASSIVE RESTRAINT
S SUSPENSION/STEERING
T TRANSMISSION/TRANSAXLE/
TRANSFER CASE
U OPEN
V SPEED CONTROL, WIPER/WASHER
W OPEN
X AUDIO SYSTEMS
Y OPEN
Z GROUNDS
8W - 01 - 4 8W - 01 GENERAL INFORMATIONPL
DESCRIPTION AND OPERATION (Continued)

WARNING: BE SURE THAT THE IGNITION SWITCH
ALWAYS IS IN THE OFF POSITION, UNLESS THE
PROCEDURE REQUIRES IT TO BE ON.
WARNING: SET THE PARKING BRAKE WHEN
WORKING ON ANY VEHICLE. AN AUTOMATIC
TRANSMISSION SHOULD BE IN PARK. A MANUAL
TRANSMISSION SHOULD BE IN NEUTRAL.
WARNING: OPERATE THE ENGINE ONLY IN A
WELL-VENTILATED AREA.
WARNING: KEEP AWAY FROM MOVING PARTS
WHEN THE ENGINE IS RUNNING, ESPECIALLY THE
FAN AND BELTS.
WARNING: TO PREVENT SERIOUS BURNS, AVOID
CONTACT WITH HOT PARTS SUCH AS THE RADIA-
TOR, EXHAUST MANIFOLD(S), TAIL PIPE, CATA-
LYTIC CONVERTER, AND MUFFLER.
WARNING: DO NOT ALLOW FLAME OR SPARKS
NEAR THE BATTERY. GASES ARE ALWAYS
PRESENT IN AND AROUND THE BATTERY.
WARNING: ALWAYS REMOVE RINGS, WATCHES,
LOOSE HANGING JEWELRY, AND LOOSE CLOTH-
ING.
TAKE OUTS
The abbreviation T/O is used in the component
location section to indicate a point in which the wir-
ing harness branches out to a component.
ELECTROSTATIC DISCHARGE (ESD) SENSITIVE
DEVICES
All ESD sensitive components are solid state and a
symbol (Fig. 4) is used to indicate this. When han-
dling any component with this symbol comply with
the following procedures to reduce the possibility of
electrostatic charge build up on the body and inad-
vertent discharge into the component. If it is not
known whether the part is ESD sensitive, assume
that it is.
(1) Always touch a known good ground before han-
dling the part. This should be repeated while han-
dling the part and more frequently after sliding
across a seat, sitting down from a standing position,
or walking a distance.
(2) Avoid touching electrical terminals of the part,
unless instructed to do so by a written procedure.(3) When using a voltmeter, be sure to connect the
ground lead first.
(4) Do not remove the part from its protective
packing until it is time to install the part.
(5) Before removing the part from its package,
ground the package to a known good ground on the
vehicle.
DIAGNOSIS AND TESTING
TROUBLESHOOTING TOOLS
When diagnosing a problem in an electrical circuit
there are several common tools necessary. These tools
are listed and explained below.
²Jumper Wire - This is a test wire used to con-
nect two points of a circuit. It can be used to bypass
an open in a circuit.
WARNING: NEVER USE A JUMPER WIRE ACROSS
A LOAD, SUCH AS A MOTOR, CONNECTED
BETWEEN A BATTERY FEED AND GROUND.
²Voltmeter - Used to check for voltage on a cir-
cuit. Always connect the black lead to a known good
ground and the red lead to the positive side of the
circuit.
CAUTION: Most of the electrical components used
in today's vehicle are solid state. When checking
voltages in these circuits use a meter with a 10-me-
gohm or greater impedance rating.
²Ohmmeter - Used to check the resistance
between two points of a circuit. Low or no resistance
in a circuit means good continuity.
CAUTION: - Most of the electrical components used
in today's vehicle are Solid State. When checking
resistance in these circuits use a meter with a 10-
megohm or greater impedance rating. In addition,
make sure the power is disconnected from the cir-
cuit. Circuits that are powered up by the vehicle
electrical system can cause damage to the equip-
ment and provide false readings.
Fig. 4 Electrostatic Discharge Symbol
8W - 01 - 8 8W - 01 GENERAL INFORMATIONPL
DESCRIPTION AND OPERATION (Continued)

²Probing Tools - These tools are used for probing
terminals in connectors (Fig. 5). Select the proper
size tool from Special Tool Package 6807, and insert
it into the terminal being tested. Use the other end
of the tool to insert the meter probe.
INTERMITTENT AND POOR CONNECTIONS
Most intermittent electrical problems are caused
by faulty electrical connections or wiring. It is also
possible for a sticking component or relay to cause a
problem. Before condemning a component or wiring
assembly check the following items.
²Connectors are fully seated
²Spread terminals, or terminal push out
²Terminals in the wiring assembly are fully
seated into the connector/component and locked in
position
²Dirt or corrosion on the terminals. Any amount
of corrosion or dirt could cause an intermittent prob-
lem
²Damaged connector/component casing exposing
the item to dirt and moisture
²Wire insulation that has rubbed through causing
a short to ground
²Some or all of the wiring strands broken inside
of the insulation covering.
²Wiring broken inside of the insulation
TROUBLESHOOTING TESTS
Before beginning any tests on a vehicles electrical
system use the Wiring Diagrams and study the cir-
cuit. Also refer to the Troubleshooting Wiring Prob-
lems in this section.
TESTING FOR VOLTAGE POTENTIAL
(1) Connect the ground lead of a voltmeter to a
known good ground (Fig. 6).
(2) Connect the other lead of the voltmeter to the
selected test point. The vehicle ignition may need to
be turned ON to check voltage. Refer to the appropri-
ate test procedure.
TESTING FOR CONTINUITY
(1) Remove the fuse for the circuit being checked
or, disconnect the battery.
(2) Connect one lead of the ohmmeter to one side
of the circuit being tested (Fig. 7).
(3) Connect the other lead to the other end of the
circuit being tested. Low or no resistance means good
continuity.
Fig. 5 Probing Tool
Fig. 6 Testing for Voltage Potential
Fig. 7 Testing for Continuity
PL8W - 01 GENERAL INFORMATION 8W - 01 - 9
DIAGNOSIS AND TESTING (Continued)

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 suspected fused circuits.
(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. 8).
(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 gage be used as shown in the wiring
diagrams. The wires must also be held securely in
place to prevent damage to the insulation.
(1) Disconnect battery negative cable
(2) Remove 1 inch of insulation from each end of
the wire.
(3) 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.
(4) Spread the strands of the wire apart on each
part of the exposed wire (example 1). (Fig. 9)
(5) Push the two ends of wire together until the
strands of wire are close to the insulation (example
2) (Fig. 9)
(6) Twist the wires together (example 3) (Fig. 9)
(7) Solder the connection together using rosin core
type solder only.Do not use acid core solder.
(8) 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.
(9) Secure the wire to the existing ones to prevent
chafing or damage to the insulation
(10) Connect battery and test all affected systems.
TERMINAL/CONNECTOR REPAIR-MOLEX
CONNECTORS
(1) Disconnect battery.
Fig. 8 Testing for Voltage Drop
8W - 01 - 10 8W - 01 GENERAL INFORMATIONPL
DIAGNOSIS AND TESTING (Continued)

8W-02 COMPONENT INDEX
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.....................8W-42
A/C Pressure Switches...................8W-42
ABS Warning Lamp Relay................8W-35
Airbag Control Module...................8W-43
Airbags..............................8W-43
Antenna..............................8W-47
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 Switch...........8W-40, 50
Camshaft Position Sensor................8W-30
Center High Mounted Stop Lamp..........8W-51
Cigar Lighter Relay.....................8W-41
Cigar Lighter/Power Outlet...............8W-41
Circuit Breakers.......................8W-11
Clockspring.....................8W-30, 41, 61
Clutch Pedal Position Switch...........8W-10, 21
Combination Flasher....................8W-52
Controller Anti-Lock Brake...............8W-35
Crankshaft Position Sensor...............8W-30
Data Link Connector....................8W-30
Daytime Running Lamp Module...........8W-50
Diode No. 1........................8W-15, 42
Diode No. 2......................8W-10, 11, 44
Diode No. 3......................8W-11,44,70
Dome Lamp...........................8W-44
Door Ajar Switches.....................8W-44
Door Jamb Switches....................8W-44
Door Lock Motors......................8W-61
Door Lock Motors......................8W-61
Door Lock Switches.....................8W-61
Duty Cycle Evap/Purge Solenoid...........8W-30
EGR Transducer Solenoid................8W-30
Engine Coolant Temperature Sensor........8W-30
Engine Oil Pressure Switch...............8W-40
Engine Starter Motor....................8W-21
Engine Starter Motor Relay...............8W-21
Fog Lamp Relays....................8W-50, 51
Fog Lamp Switches..................8W-50, 51
Fog Lamps.........................8W-50, 51
Fuel Injectors..........................8W-30
Fuel Pump Module.....................8W-30
Fuel Pump Relay.......................8W-30
Fuse Block............................8W-11Component Page
Fuses (FB)............................8W-11
Fuses (PDC)...........................8W-10
Fusible Link........................8W-20, 21
Generator.............................8W-20
Glove Box Lamp And Switch..............8W-44
Grounds..............................8W-15
Halo Lamp............................8W-44
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
High Speed Warning Module..............8W-40
Horn Relay...........................8W-41
Horn Switches.........................8W-41
Horns................................8W-41
IAT/Map Sensor........................8W-30
Idle Air Control Motor...................8W-30
Ignition Coil Pack......................8W-30
Ignition Switch........................8W-10
Illumination Lamps.....................8W-40
Immobilizer...........................8W-61
Immobilizer Engine Sensor............8W-30, 61
Indicator Lamps........................8W-40
Instrument Cluster.....................8W-40
Intermittent Wipe/Wash Switch............8W-53
Key-In Switch.........................8W-40
Knock Sensor..........................8W-30
License Lamps.........................8W-51
Map/Reading Lamps....................8W-44
Noise Supressor.....................8W-10, 30
Oxygen Sensors........................8W-30
Park Brake Switch...................8W-40, 50
Park/Neutral Position Switch...........8W-30, 51
Park/Turn Signal Lamps..............8W-50, 52
Power Distribution Center................8W-10
Power Folding Mirror Relay...............8W-62
Power Mirror Fuse Holder................8W-62
Power Mirrors.........................8W-62
Power Steering Pressure Switch...........8W-30
Power Sunroof Motor....................8W-64
Power Window Motors...................8W-60
Power Window Switches.................8W-60
Powertrain Control Module...............8W-30
PRNDL Lamp.........................8W-44
Radiator Fan Motor.....................8W-42
Radio................................8W-47
Rear Window Defogger..................8W-48
Rear Window Defogger Switch.............8W-48
Remote Keyless Entry Module.............8W-61
Remote Keyless Entry Program
Module Connector....................8W-61
PL8W - 02 COMPONENT INDEX 8W - 02 - 1

8W-10 POWER DISTRIBUTION
Component Page
A/C Compressor Clutch.............8W-10-14, 15
A/C Compressor Clutch Relay........8W-10-14, 15
Automatic Shut Down Relay............8W-10-16
Battery...........................8W-10-5, 6
Capacitor..........................8W-10-16
Circuit Breaker.......................8W-10-8
Clutch Pedal Position Switch.......8W-10-9, 10, 11
Controller Anti-Lock Brake.......8W-10-12, 14, 15
Data Link Connector..................8W-10-16
Diode No. 1......................8W-10-14, 15
Diode No. 2.........................8W-10-13
Dome Lamp........................8W-10-13
Downstream Heated Oxygen Sensor......8W-10-16
Engine Starter Motor..................8W-10-7
Engine Starter Motor Relay......8W-10-7, 9, 10, 11
Fog Lamp Relay.....................8W-10-17
Fuel Injector No. 1...................8W-10-16
Fuel Injector No. 2...................8W-10-16
Fuel Injector No. 3...................8W-10-16
Fuel Injector No. 4...................8W-10-16
Fuel Pump Module...................8W-10-16
Fuel Pump Relay....................8W-10-16
Fuse 1 (FB)..........................8W-10-8
Fuse 2 (FB)..........................8W-10-8
Fuse 2 (PDC).....................8W-10-5, 6, 7
Fuse 3 (FB)..........................8W-10-8
Fuse 3 (PDC).....................8W-10-5, 6, 8
Fuse 4 (FB)..........................8W-10-8
Fuse 5 (FB)..........................8W-10-8
Fuse 5 (PDC)....................8W-10-5, 6, 12
Fuse 6 (FB)..........................8W-10-8
Fuse 7 (FB)..........................8W-10-8
Fuse 8 (FB)..........................8W-10-8
Fuse 8 (PDC)....................8W-10-5, 6, 12
Fuse 9 (FB).......................8W-10-9, 10
Fuse 10 (FB)...................8W-10-9, 10, 11
Fuse 10 (PDC)...................8W-10-5, 6, 12
Fuse 11 (FB)...................8W-10-9, 10, 11
Fuse 11 (PDC)....................8W-10-5, 6, 7
Fuse 12 (FB)........................8W-10-11
Fuse 13 (PDC)...................8W-10-5, 6, 13
Fuse 14 (FB)...................8W-10-9, 10, 11
Fuse 15 (FB)...................8W-10-9, 10, 11
Fuse 16 (FB)...................8W-10-9, 10, 11Component Page
Fuse 16 (PDC).....................8W-10-6, 17
Fuse 18 (PDC)................8W-10-5, 6, 14, 15
Fuse 20 (PDC)................8W-10-5, 6, 14, 15
Fuse 21 (PDC)...................8W-10-5, 6, 16
Fuse 23 (PDC)................8W-10-5, 6, 14, 15
Fuse 25 (PDC)................8W-10-5, 6, 14, 15
Fuse Block...................8W-10-8, 9, 10, 11
G101...............................8W-10-9
G204...............................8W-10-7
Generator..........................8W-10-16
Glove Box Lamp And Switch............8W-10-13
Headlamp Switch.....................8W-10-8
High Speed Warning Module...........8W-10-13
Horn..............................8W-10-14
Horn No. 1.........................8W-10-15
Horn No. 2.........................8W-10-15
Horn Relay......................8W-10-14, 15
Ignition Coil Pack....................8W-10-16
Ignition Switch.............8W-10-7, 8, 9, 10, 11
Immobilizer......................8W-10-10, 11
Instrument Cluster.................8W-10-7, 13
Left Fog Lamp......................8W-10-17
Left Visor/Vanity Lamps...............8W-10-13
Map/Reading Lamps..................8W-10-13
Noise Supressor.....................8W-10-16
Power Distribution
Center.....8W-10-5, 6, 7, 8, 12, 13, 14, 15, 16, 17
Power Mirror Switch..................8W-10-13
Powertrain Control Module...........8W-10-9, 16
Radiator Fan Motor..................8W-10-12
Radio..............................8W-10-13
Rear Fog Lamp Switch................8W-10-17
Rear Window Defogger Switch..........8W-10-12
Right Fog Lamp.....................8W-10-17
Right Visor/Vanity Lamps..............8W-10-13
Solid State Fan Relay.................8W-10-12
Stop Lamp Switch.................8W-10-14, 15
Time Delay Relay....................8W-10-13
Time Out Relay......................8W-10-13
Trunk Lamp........................8W-10-13
Turn Signal/Hazard Switch..........8W-10-14, 15
Underhood Lamp....................8W-10-13
Upstream Heated Oxygen Sensor........8W-10-16
PL8W - 10 POWER DISTRIBUTION 8W - 10 - 1