1997 DODGE NEON Fuel module

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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

Downloaded from www.Manualslib.com manuals search engine 13FUSE10A
14
13
BATT A0
SPEEDOMETERCHIMELOW
FUEL
LEVEL
INDICATOR
LAMP
TACHOMETER
DRIVERODOMETER
DRIVER
000000
TACHOMETERODOMETER
M1
18
PK
M1
22
PK
S203
13C103
7366 TACHOMETER
SIGNAL
POWERTRAIN
CONTROL
MODULE
G21
20
GY/LB
G21
22
GY/LB
G7
20
WT/OR
G7
22
WT/OR
85C103
G7
20
WT/ORG7
18
WT/OR
3
2C160VEHICLE
SPEED
SENSOR
C2
5
HEADLAMP
SWITCH
0 OFF
1 PARK
2 HEAD
C110C17C16
VEHICLE
SPEED
SENSOR
SIGNAL
0
12
6 51 2
KEY-IN
SWITCH
LEFT
FRONT
DOOR
JAMB
SWITCH
M1
22
PK
POWER
DISTRIBUTION
CENTER
INSTRUMENT
CLUSTER
G26
20
LB
G26 20LB
G16 20BK/LBG16
20
BL/LB
9C230
BL/LB20 G16
C1 C1
SIGNAL SENSORSPEED VEHICLE
(8W-10-8)
(8W-10-8)(8W-30-8)
(8W-30-11)(8W-30-8)
(8W-50-2) (8W-10-4) (8W-10-4)
PL-RHD8W-40 INSTRUMENT CLUSTER 8W - 40 - 3
PLR04002978W-1

Downloaded from www.Manualslib.com manuals search engine ST-RUN A21
FUEL
LEVEL
SENSOR
SIGNAL
INSTRUMENT
CLUSTER
G5
20
DB/WT
G20
22
VT/YL
G20
20
VT/YL
G20
20
VT/YL
G4
20
DB
G4
20
DB
Z3
16
BK/OR
Z3
14
BK/OR
G6
22
GY
G6
20
GY
G6
18
GY
S201
SWITCH PRESSURE
OIL
ENGINE
BLOCK
FUSE
G4
20
DB
G204
8C161
4C103
1C28C1
6C230
3C160
23
10C25C1
1
10
31
POWERTRAIN
CONTROL
MODULE
FUEL
PUMP
MODULE SENSOR TEMPERATURE
COOLANT
ENGINE
3G4
18
DB
C1609
C10311
BK/PK20 G3
BK/PK22 G3
BK/PK20 G3
MODULE CONTROL
POWERTRAIN
8
3C2
CHECK
ENGINE
LAMP
DRIVER
C
6
C160
7C103
4C2
5A FUSE
11
SENSOR
SIGNAL
ENGINE
COOLANT
TEMPERATURE
GAUGELAMP ENGINE
CHECK
FUEL
GAUGE
LAMP PRESSURE
OIL
LOW FUEL
TANK
SENDING
UNIT
DB/WT20 G5
6
NO
CONNECTIONG4
20
DB
7C105
C2
C2
(8W-15-7)(8W-11-2)
(8W-15-7)(8W-30-10)
(8W-30-10) (8W-30-7)
(8W-30-11) (8W-11-10)(8W-10-12)
8W - 40 - 6 8W-40 INSTRUMENT CLUSTERPL-RHD
978W-1PLR04005

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INDEX
page page
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)

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INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
Component Page
A/C Compressor Clutch................8W-80-4
A/C Cycling switch...................8W-80-4
A/C-Heater Blower Motor..............8W-80-4
A/C-Heater Control Switch.............8W-80-4
A/C High Pressure Switch..............8W-80-4
A/C Low Ptressure Switch..............8W-80-5
ABS Hydraulic Modulator..............8W-80-5
ABS Relay Box......................8W-80-5
Airbag Control Module................8W-80-5
Ash Receiver lamp...................8W-80-6
Back-Up Lamp Switch (MTX)...........8W-80-6
Battery Temperature Sensor............8W-80-6
Blower Motor Resister Block............8W-80-6
Brake Warning Lamp Switch...........8W-80-6
C101..............................8W-80-7
C102..............................8W-80-7
C103..............................8W-80-7
C105..............................8W-80-8
C108..............................8W-80-8
C160..............................8W-80-8
C161..............................8W-80-8
C203..............................8W-80-9
C205..............................8W-80-9
C206..............................8W-80-9
C225..............................8W-80-9
C230.............................8W-80-10
C231.............................8W-80-10
C241.............................8W-80-10
C301.............................8W-80-11
C303.............................8W-80-11
C309.............................8W-80-11
C315.............................8W-80-11
C323.............................8W-80-11
C324.............................8W-80-11
C325.............................8W-80-12
C340.............................8W-80-12
C341.............................8W-80-12
Camshaft Position Sensor.............8W-80-12
Clockspring........................8W-80-12
Clutch Pedal Position Switch (MTX).....8W-80-12
Controller Anti-Lock Brake............8W-80-13
Crankshaft Position Sensor............8W-80-14
Data Link Connector.................8W-80-14
Dome Lamp........................8W-80-14
Downstream Heated Oxygen Sensor.....8W-80-15Component Page
Driver Side Airbag..................8W-80-15
Duty Cycle Evap/Purge Solenoid........8W-80-15
EGR Transducer solenoid.............8W-80-15
Engine Coolant Temperature
Sensor (ECT).....................8W-80-15
Engine Oil Pressure Switch............8W-80-16
Front Fog Lamp Switch...............8W-80-16
Fuel Injector No.1...................8W-80-16
Fuel Injector No.2...................8W-80-16
Fuel Injector No.3...................8W-80-16
Fuel Injector No.4...................8W-80-16
Fuel Pump Module..................8W-80-17
Generator.........................8W-80-17
Glove Box Lamp and Switch...........8W-80-17
Headlamp Dimmer and Optical
Horn Switch.....................8W-80-17
Headlamp Leveling Switch............8W-80-17
Headlamp Switch...................8W-80-17
Horn No.1.........................8W-80-18
Horn No.2.........................8W-80-18
(IAT/Map) Sensor...................8W-80-18
Idle Air Control Motor (IAC)...........8W-80-18
Ignition Coil Pack...................8W-80-18
Ignition Switch.....................8W-80-19
Immobilizer Engine Sensor............8W-80-19
Immobilizer Sensor..................8W-80-19
Instument Cluster - C1...............8W-80-19
Instument Cluster - C2...............8W-80-19
Intermittent Wipe/Wash Switch........8W-80-20
Key-In Switch......................8W-80-20
Knock Sensor......................8W-80-20
Left Airbag Impact Sensor.............8W-80-20
Left Back-Up Lamp..................8W-80-20
Left Door Lock Switch................8W-80-21
Left Door Window Motor..............8W-80-21
Left Fog Lamp......................8W-80-21
Left Front Door Lock Motor...........8W-80-21
Left Front Door Speaker..............8W-80-21
Left Front Wheel Speed Sensor.........8W-80-22
Left Headlamp.....................8W-80-22
Left Headlamp Leveling Motor.........8W-80-22
Left Instrument Panel Speaker
(Premium).......................8W-80-22
Left License Lamp...................8W-80-22
Left Park/Turn Signal Lamp...........8W-80-22
8W - 80 - 2 8W - 80 CONNECTOR PIN-OUTSPL

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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

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8W - 80 - 27 PL-RHD 8W-80 CONNECTOR PIN-OUTS
PLR08027
CAV CIRCUIT FUNCTION
61 K6 20VT/WT 5 VOLT SUPPLY
62 K29 20WT/PK STOP LAMP SWITCH SENSE
63 Ð Ð
64 C28 18DB/OR A/C COMPRESSOR CLUTCH RELAY CONTROL
65 D21 20PK SCI TRANSMIT
66 G7 20WT/OR VEHICLE SPEED SENSOR SIGNAL
67 K51 18DB/YL AUTOMATIC SHUT DOWN RELAY CONTROL
68 K52 20PK/BK DUTY CYCLE EVAP/PURGE SOLENOID CONTROL
69 Ð Ð
70 Ð Ð
71 Z2 18BK/OR Ð
72 K107 18OR VAPOR CANISTER PUMP SWITCH DRIVER
73 G21 20GY/LB TACHOMETER SIGNAL
74 K31 18BR FUEL PUMP RELAY CONTROL
75 D20 20LG SCI RECEIVE
76 Ð **Ð
76 T41 20BR/YLllPARK/NEUTRAL POSITION SWITCH SENSE
77 K106 18WT/LG VAPOR CANISTER SOLENOID DRIVER
78 Ð Ð
79 Ð **Ð
79 K54 20OR/BKllTORQUE CONVERTOR CLUTCH SOLENOID CONTROL
80 Ð Ð
(CONTINUED)
*2.0L (SOHC) ENGINEl2.0L (DOHC) ENGINE
**MTXllATX
CAV CIRCUIT FUNCTION
1Ð Ð
2 K19 18BK/GY IGNITION COIL NO. 1, 3 DRIVER
3 K17 18DB/TN IGNITION COIL NO. 2, 4 DRIVER
4 K20 18DG GENERATOR FIELD DRIVER
5 V32 20YL/RD SPEED CONTROL FEED
6 A142 18DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
7 K13 18YL/WT INJECTOR NO. 3 DRIVER
8 G3 20BK/PK CHECK ENGINE LAMP DRIVER
9Ð Ð
10 Z12 18BK/TN GROUND
11 Ð Ð
12 Ð Ð
13 K11 18WT/DB INJECTOR NO. 1 DRIVER
14 Ð Ð
15 Ð Ð
16 K14 18LB/BR INJECTOR NO. 4 DRIVER
17 K12 18TN INJECTOR NO. 2 DRIVER
18 K173 20LG RAD FAN PULSE CONTROL
19 Ð Ð
20 F12 18DB/WT FUSED IGNITION SWITCH OUTPUT (RUN/START)
21 Ð Ð
22 Ð Ð
23 G4 20DB FUEL LEVEL SENSOR SIGNAL
24 K42 20BK/LGlKNOCK SENSOR SIGNAL
24 K42 20DB/LG
*KNOCK SENSOR SIGNAL
31 40
21 30
11 20
110
POWERTRAIN CONTROL
MODULE Ð C2
BLACK
(CONTINUED ON NEXT PAGE)