Fuel pump module DODGE NEON 1997 1.G Wiring Diagrams Workshop Manual

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

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INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
DESCRIPTION AND OPERATION......................................................... 13
Component Page
A/C Compressor Clutch..................8W-10-9
A/C Compressor Clutch Relay.............8W-10-9
ABS Relay Box........................8W-10-7
Automatic Shut Down Relay.............8W-10-10
Battery.............................8W-10-4
Capacitor...........................8W-10-10
Circuit Breaker.......................8W-10-6
Clutch Pedal Position Switch.............8W-10-12
Data Link Connector...................8W-10-10
Dome Lamp..........................8W-10-8
Downstream Heated Oxygen Sensor........8W-10-10
Engine Starter Motor...................8W-10-5
Engine Starter Motor Relay............8W-10-5, 12
Engine Starter Motor Relay...............8W-10-5
Fog Lamp Relay......................8W-10-11
Fuel Injector No. 1....................8W-10-10
Fuel Injector No. 2....................8W-10-10
Fuel Injector No. 3....................8W-10-10
Fuel Injector No. 4....................8W-10-10
Fuel Pump Module....................8W-10-10
Fuel Pump Relay.....................8W-10-10
Fuse 1 (FB)..........................8W-10-6
Fuse 2 (PDC).......................8W-10-4, 5
Fuse 3 (PDC).......................8W-10-4, 6
Fuse 4 (FB)..........................8W-10-6
Fuse 5 (FB)..........................8W-10-6
Fuse 5 (PDC).......................8W-10-4, 7
Fuse 6 (FB)..........................8W-10-6
Fuse 7 (FB)..........................8W-10-6
Fuse 8 (FB)..........................8W-10-6
Fuse 8 (PDC).......................8W-10-4, 7
Fuse 10 (FB).........................8W-10-12
Fuse 10 (PDC)......................8W-10-4, 7
Fuse 11 (FB).........................8W-10-12
Fuse 11 (PDC)......................8W-10-4, 5
Fuse 12 (FB).........................8W-10-12
Fuse 13 (PDC)......................8W-10-4, 8
Fuse 14 (FB).........................8W-10-12
Fuse 15 (FB).........................8W-10-12
Fuse 16 (FB).........................8W-10-12
Fuse 16 (PDC)......................8W-10-4, 11
Fuse 18 (PDC)......................8W-10-4, 9
Fuse 20 (PDC)......................8W-10-4, 9
Fuse 21 (PDC)......................8W-10-4, 10
Component Page
Fuse 23 (PDC)......................8W-10-4, 10
Fuse 25 (PDC)......................8W-10-4, 9
Fuse Block........................8W-10-6, 12
G204...............................8W-10-5
Generator...........................8W-10-10
Glove Box Lamp And Switch..............8W-10-8
Headlamp Switch......................8W-10-6
Horn No. 1...........................8W-10-9
Horn No. 2...........................8W-10-9
Horn Relay..........................8W-10-9
Ignition Coil Pack.....................8W-10-10
Ignition Switch...................8W-10-5, 6, 12
Instrument Cluster...................8W-10-5, 8
Left Fog Lamp.......................8W-10-11
Left Visor/Vanity Lamps.................8W-10-8
Map/Reading Lamps....................8W-10-8
Noise Supressor......................8W-10-10
Power Distribution Center...............8W-10-10
Power Distribution Center . . 8W-10-4, 5, 6, 7, 8, 9, 10, 11
Powertrain Control Module..............8W-10-10
Radiator Fan Motor....................8W-10-7
Radio...............................8W-10-8
Rear Fog Lamp Switch.................8W-10-11
Rear Window Defogger Switch.............8W-10-7
Right Fog Lamp......................8W-10-11
Right Visor/Vanity Lamps................8W-10-8
S105..............................8W-10-10
S115 ..............................8W-10-11
S121..............................8W-10-10
S122..............................8W-10-10
S131...............................8W-10-9
S134..............................8W-10-10
S202...............................8W-10-5
S203...............................8W-10-8
S208...............................8W-10-5
S213...............................8W-10-6
S217...............................8W-10-6
S309...............................8W-10-8
Solid State Fan Relay...................8W-10-7
Stop Lamp Switch.....................8W-10-9
Trunk Lamp..........................8W-10-8
Turn Signal/Hazard Switch...............8W-10-9
Underhood Lamp......................8W-10-8
Upstream Heated Oxygen Sensor..........8W-10-10
8W - 10 - 2 8W - 10 POWER DISTRIBUTIONPL

Downloaded from www.Manualslib.com manuals search engine 21FUSE20A
21
52
55
60
57
BATT A0
POWER
DISTRIBUTION
CENTER
72
C14616
A14
16
RD/WT
A14
16
RD/WT
POWERTRAIN
CONTROL
MODULE
A14
18
RD/WT
6C105
A141
16
DG/WT
A141
18
DG/WT
4
FUEL
PUMP
MODULE
A142
18
DG/OR
S105
22
FUEL
PUMP
RELAYAUTOMATIC
SHUT
DOWN
RELAY
CONNECTORLINK DATA
6C161
DG/OR18 A142
GENERATOR
A142
18
DG/OR
SENSOR OXYGEN
HEATED
DOWNSTREAM
A142
18
DG/OR
POWERTRAIN
CONTROL
MODULE
SENSOR OXYGEN
HEATED
UPSTREAM
A142
18
DG/ORA142
18
DG/OR
A142
18
DG/OR
A142
18
DG/OR A142
18
DG/ORDG/OR18 A142
DG/OR18 A142 A142
18
DG/OR
IGNITION
COIL
PACKSUPRESSOR
NOISE
S134S121
S122
2
DG/OR18 A142
DG/OR14 A142
2222
1161C2
58
FUEL
INJECTOR
NO. 1 NO. 2INJECTOR
FUEL FUEL
INJECTOR
NO. 3FUEL
INJECTOR
NO. 4
CAPACITOR
(8W-30-2) (8W-30-10)(8W-10-4)
(8W-30-10)
(8W-30-2)(8W-10-4)
(8W-30-4)
(8W-20-2)
(8W-30-3)(8W-30-2)
(8W-30-3)
(8W-30-5) (8W-30-5) (8W-30-5) (8W-30-5) (8W-30-5)
(8W-30-5)
8W - 10 - 10 8W-10 POWER DISTRIBUTIONPL-RHD
978W-1PLR01009

Downloaded from www.Manualslib.com manuals search engine 8W-15 GROUND DISTRIBUTION
INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
DESCRIPTION AND OPERATION......................................................... 10
Component Page
A/C Compressor Clutch................8W-15-4
A/C Compressor Clutch Relay...........8W-15-4
A/C Heater Control Switch.............8W-15-6
ABS Hydraulic Modulator..............8W-15-2
ABS Relay Box......................8W-15-2
Airbag Control Module................8W-15-5
Ash Receiver Lamp...................8W-15-7
Battery............................8W-15-5
Brake Warning Lamp Switch...........8W-15-2
Cigar Lighter Relay..................8W-15-7
Cigar Lighter/Power Outlet.............8W-15-7
Combination Flasher..................8W-15-5
Controller Anti-Lock Brake.............8W-15-3
Data Link Connector..................8W-15-3
Diode..............................8W-15-4
Downstream Heated Oxygen Sensor......8W-15-2
Engine Starter Motor Relay............8W-15-2
Front Fog Lamp Switch...............8W-15-7
Fuel Pump Module...................8W-15-9
G101..............................8W-15-2
G102..............................8W-15-3
G103..............................8W-15-4
G104..............................8W-15-5
G105..............................8W-15-5
G106..............................8W-15-5
G201..............................8W-15-5
G202..............................8W-15-5
G203..............................8W-15-6
G204..............................8W-15-7
G301..............................8W-15-9
G302..............................8W-15-8
G303..............................8W-15-9
Glove Box Lamp And Switch............8W-15-7
Headlamp Leveling Switch.............8W-15-7
Headlamp Switch....................8W-15-7
Horn No. 1.........................8W-15-4
Horn No. 2.........................8W-15-2
Ignition Switch......................8W-15-7
Instrument Cluster...................8W-15-7
Intermittent Wipe/Wash Switch.........8W-15-5
Left Back-Up Lamp...................8W-15-8
Left Fog Lamp......................8W-15-4
Left Headlamp......................8W-15-2
Left Headlamp Leveling Motor..........8W-15-2
Left License Lamp...................8W-15-8
Left Park/Turn Signal Lamp............8W-15-2
Left Rear Fog Lamp..................8W-15-8Component Page
Left Tail/Stop Lamp..................8W-15-8
Left Turn Signal Lamp................8W-15-8
Map/Reading Lamps..................8W-15-7
Master Power Window Switch...........8W-15-6
Power Folding Mirror Relay............8W-15-6
Power Mirror Switch..................8W-15-6
Power Steering Pressure Switch.........8W-15-3
Power Sunroof Motor.................8W-15-6
Powertrain Control Module...........8W-15-3, 5
PRNDL Lamp.......................8W-15-7
Radiator Fan Motor..................8W-15-2
Radio..............................8W-15-5
Rear Fog Lamp Switch................8W-15-7
Rear Window Defogger................8W-15-9
Rear Window Defogger Switch..........8W-15-5
Right Back-Up Lamp.................8W-15-9
Right Door Lock Switch...............8W-15-6
Right Fog Lamp.....................8W-15-4
Right Headlamp.....................8W-15-4
Right Headlamp Leveling Motor.........8W-15-4
Right License Lamp..................8W-15-8
Right Park/Turn Signal Lamp...........8W-15-4
Right Rear Fog Lamp.................8W-15-9
Right Repeater Lamp.................8W-15-4
Right Tail/Stop Lamp.................8W-15-9
Right Turn Signal Lamp...............8W-15-9
S104..............................8W-15-3
S107..............................8W-15-2
S108..............................8W-15-2
S111 ..............................8W-15-2
S117 ..............................8W-15-4
S119 ..............................8W-15-2
S127..............................8W-15-2
S201..............................8W-15-7
S202..............................8W-15-7
S205..............................8W-15-5
S307..............................8W-15-9
S308..............................8W-15-8
S310..............................8W-15-6
S314..............................8W-15-6
S315..............................8W-15-8
Solid State Fan Relay.................8W-15-2
Stop Lamp Switch....................8W-15-3
Sunroof Vent Switch..................8W-15-6
Upstream Heated Oxygen Sensor........8W-15-2
Windshield Washer Pump Motor.........8W-15-2
8W - 15 - 2 8W - 15 GROUND DISTRIBUTIONPL

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RIGHT
BACK-UP
LAMP
Z1
18
BK
3
Z1
18
BK
Z1
18
BKZ1
14
BK
REAR
WINDOW
DEFOGGER
G301
12
MODULE PUMP
FUEL
G303
Z1
18
BKZ2
18
BK
S307
BK18Z1
2
LAMP SIGNAL
TURN
RIGHT
RIGHT
REAR
FOG
LAMP
2
Z1
18
BK
Z1
16
BK
3C341
RIGHT
TAIL/
STOP
LAMP
(8W-51-3) (8W-48-2)(8W-30-10)
(8W-52-4) (8W-51-7)
(8W-51-5)
PL-RHD8W-15 GROUND DISTRIBUTION 8W - 15 - 9
PLR01508978W-1

Downloaded from www.Manualslib.com manuals search engine 8W-30 FUEL/IGNITION SYSTEMS
INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
DESCRIPTION AND OPERATION......................................................... 14
Component Page
A/C Compressor Clutch Relay..........8W-30-11
A/C High Pressure Switch.............8W-30-11
Airbag Control Module................8W-30-4
Automatic Shut Down Relay..........8W-30-2, 3
Battery Temperature Sensor..........8W-30-3, 7
Camshaft Position Sensor...........8W-30-7, 13
Controller Anti-Lock Brake..........8W-30-4, 12
Crankshaft Position Sensor..........8W-30-7, 13
Data Link Connector................8W-30-2, 4
Downstream Heated Oxygen Sensor......8W-30-3
Duty Cycle Evap/Purge Solenoid.........8W-30-9
EGR Transducer Solenoid..............8W-30-9
Engine Coolant Temperature Sensor......8W-30-7
Fuel Injector No. 1...................8W-30-5
Fuel Injector No. 2...................8W-30-5
Fuel Injector No. 3...................8W-30-5
Fuel Injector No. 4...................8W-30-5
Fuel Pump Module..................8W-30-10
Fuel Pump Relay....................8W-30-10
Fuse 5 (FB)........................8W-30-12
Fuse 10 (FB).....................8W-30-9, 10
Fuse 10 (FB)........................8W-30-9
Fuse 21 (PDC)................8W-30-2, 3, 4, 10
Fuse 25 (PDC)......................8W-30-12
Fuse Block....................8W-30-9, 10, 12
G101..............................8W-30-3
G102.........................8W-30-2, 4, 12
G106..............................8W-30-2
G303.............................8W-30-10
Generator.........................8W-30-11
IAT/MAP Sensor.....................8W-30-6
Idle Air Control Motor.................8W-30-8
Ignition Coil Pack....................8W-30-5
Immobilizer Engine Sensor............8W-30-13
Immobilizer Sensor..............8W-30-3, 8, 13
Instrument Cluster...........8W-30-7, 8, 10, 11Component Page
Knock Sensor.......................8W-30-6
Noise Supressor.....................8W-30-5
Park/Neutral Position Switch..........8W-30-12
Power Distribution Center....8W-30-2, 3, 4, 10, 12
Power Steering Pressure Switch.........8W-30-4
Powertrain Control
Module . 8W-30-2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
S101.............................8W-30-12
S102..............................8W-30-4
S104...........................8W-30-2, 12
S104............................8W-30-2, 4
S105............................8W-30-2, 4
S106.............................8W-30-12
S107..............................8W-30-3
S109...........................8W-30-9, 10
S110 ......................8W-30-3, 6, 7, 8, 13
S118 ..........................8W-30-3, 7, 8
S119 ..............................8W-30-3
S120........................8W-30-3, 6, 7, 8
S121..............................8W-30-5
S122..........................8W-30-2, 3, 5
S123.............................8W-30-13
S123............................8W-30-7, 8
S124..............................8W-30-6
S126..............................8W-30-9
S127..............................8W-30-3
S129.............................8W-30-13
S134..............................8W-30-5
S211 .............................8W-30-12
Solid State Fan Relay................8W-30-11
Stop Lamp Switch...................8W-30-12
Throttle Position Sensor...............8W-30-6
Torque Converter Clutch Solenoid........8W-30-9
Upstream Heated Oxygen Sensor........8W-30-3
Vapor Canister Leak Detector...........8W-30-9
Vehicle Speed Sensor...............8W-30-8, 13
8W - 30 - 2 8W - 30 FUEL/IGNITION SYSTEMSPL

Downloaded from www.Manualslib.com manuals search engine 3010FUSE
15A
BLOCK
FUSE
F12
20
DG/WT
6C101
DG/WT20 F12
2
1
SOLENOID PURGE
EVAP/
CYCLE
DUTY
F12
20
DG/WT
TORQUE
CONVERTER
CLUTCH
SOLENOID
(A/T)
2 3
F12
20
DG/WT
2
3
DETECTOR LEAK
CANISTER
VAPOR
4
F12
18
DG/WT
7C160
F12
20
DG/WT
EGR
TRANSDUCER
SOLENOID
1 2
F12
18
DB/WT
F12
18
DB/WT
F12
18
DB/WT
POWERTRAIN
CONTROL
MODULE C2
2040C277C179C168C1 C172
K35
20
GY/YL
K107
18
ORK106
18
WT/LGK54
20
OR/BKK52
20
PK/BK
TORQUE
CONVERTER
CLUTCH
SOLENOID
CONTROLEGR
SOLENOID
CONTROL VAPOR
CANISTER
PUMP
SWITCH
DRIVER VAPOR
CANISTER
SOLENOID
DRIVER DUTY
CYCLE
EVAP/
PURGE
SOLENOID
CONTROL
S109
S126
10
ST-RUN A21
FUSED
IGN.
(ST-RUN)
(8W-11-9)(8W-11-2)
(8W-11-9) (8W-10-12)
PL-RHD8W-30 FUEL/IGNITION SYSTEM 8W - 30 - 9
PLR03008978W-1

Downloaded from www.Manualslib.com manuals search engine 2121FUSE
20A
5352
55 56
BATT A0
POWER
DISTRIBUTION
CENTER
3010FUSE
15A
10BLOCK
FUSE
F12
20
DG/WT
S109
F12
20
DG/WT
6C101
F12
20
DG/WT
ST-RUN A21
4
13
2
FUEL
PUMP
MODULE
G303 C1
74
FUEL
PUMP
RELAY
CONTROLK31
18
BR
6C105
A141
16
DG/WT
A141
18
DG/WT
SIGNAL SENSORLEVELFUEL
6C230
G4
18
DB
G4
20
DB
3C160
G4
20
DB
7C105
G4
20
DB
Z1
18
BKZ2
18
BK
23C2
MODULE CONTROL
POWERTRAINMODULE CONTROL
POWERTRAIN
FUEL
PUMP
RELAY 22
C210
FUEL
GAUGE
INSTRUMENT
CLUSTER
71
G4
20
DB
(8W-10-10)(8W-10-4) (8W-11-9)(8W-11-2)
(8W-11-9)
(8W-15-9) (8W-10-4) (8W-10-12)
(8W-40-6)
M
8W - 30 - 10 8W-30 FUEL/IGNITION SYSTEMPL-RHD
978W-1PLR03009

Downloaded from www.Manualslib.com manuals search engine 8W-30 FUEL/IGNITION SYSTEMS
INDEX
page page
DESCRIPTION AND OPERATION
AUTOMATIC SHUT DOWN RELAY.......... 15
BATTERY FEED........................ 14
BATTERY TEMPERATURE SENSOR......... 18
CAMSHAFT POSITION SENSOR........... 16
CRANKSHAFT POSITION SENSOR......... 16
DATA LINK CONNECTOR................. 15
DUTY CYCLE EVAP/PURGE SOLENOID...... 19
EGR TRANSDUCER (EET) SOLENOID....... 19
ENGINE COOLANT
TEMPERATURE SENSOR............... 16
FUEL INJECTORS....................... 18
FUEL PUMP MOTOR.................... 15
HEATED OXYGEN SENSORS.............. 16
IDLE AIR CONTROL MOTOR.............. 18
IGNITION COIL PACK.................... 18IGNITION SWITCH...................... 14
INTAKE AIR TEMPERATURE SENSOR....... 17
KNOCK SENSOR....................... 17
LOW FUEL DETECT INPUT............... 19
MANIFOLD ABSOLUTE
PRESSURE SENSOR.................. 17
PARK/NEUTRAL POSITION SWITCH INPUT
(3±SPD TRANSMISSION)................ 19
POWER (DEVICE) GROUND............... 14
POWER STEERING PRESSURE SWITCH..... 19
SIGNAL GROUND....................... 14
THROTTLE POSITION SENSOR............ 17
TORQUE CONVERTER CLUTCH SOLENOID
(TCC)............................... 19
VEHICLE SPEED SENSOR................ 15
DESCRIPTION AND OPERATION
IGNITION SWITCH
In the RUN position, the ignition switch connects
circuit A1 from the Power Distribution Center (PDC)
to circuit A21. A 30 amp fuse in the PDC protects cir-
cuits A1 and A21. Circuit A21 feeds a bus bar in the
fuse block. The bus bar feeds circuits G5, F12, and
F15.
²Circuit G5 powers the gauge cluster warning
lamps and the daytime running lamp (DRL) module.
Fuse cavity 11 (5 amp) in the fuse block protects cir-
cuit G5.
²Circuit F12 splices to the Powertrain Control
Module (PCM), duty cycle purge solenoid, EGR sole-
noid, ABS system, and a bus bar in the PDC. The
bus bar in the PDC feeds the coil side of the radiator
fan relay, A/C compressor clutch relay, and the fuel
pump relay. A 15 amp fuse in the fuse block, cavity
10, protects circuit F12.
²Circuit F15 feeds the Airbag Control Module
(ACM). A 10 amp fuse in the fuse block, cavity 9, pro-
tects circuit F15.
BATTERY FEED
Circuit A14 from the Power Distribution Center
(PDC) supplies battery voltage to cavity 46 of the
Powertrain Control Module (PCM). A 20 amp fuse in
the PDC protects circuit A14.
HELPFUL INFORMATION
Circuit A14 connects to a bus bar in the PDC that
the battery feeds. Circuit A14 powers the AutomaticShut Down (ASD) relay and fuel pump relay. The
A14 circuit also splices to the data link connector.
POWER (DEVICE) GROUND
Circuit Z12 connects to cavities 10 and 50 of the
Powertrain Control Module (PCM). The Z12 circuit
provides ground for PCM internal drivers that oper-
ate high current devices like the injectors and igni-
tion coils.
Internal to the PCM, the power (device) ground cir-
cuit connects to the PCM sensor return circuit (from
circuit K4) and the signal ground circuit (Z11).
HELPFUL INFORMATION
Circuit Z12 which supplies ground for the PCM
high current drivers, has the same termination point
as circuit Z11. The termination point is the left side
of the radiator closure panel.
If the system loses ground for the ganged circuits,
at the left side of the radiator closure panel, the vehi-
cle will not operate. Check the connection at the
ganged ground circuit eyelet.
SIGNAL GROUND
The signal ground circuit Z11 connects to cavity 47
of the PCM. The Z11 circuit provides ground for the
sensors that provide inputs to the PCM. Internal to
the PCM, the signal ground circuit connects to the
PCM sensor return circuit (from circuit K4) and the
power (device) ground circuit (Z12).
The termination point for circuit Z11 is an eyelet
attached to the left side of the radiator closure panel.
8W - 30 - 14 8W - 30 FUEL/IGNITION SYSTEMSPL

Downloaded from www.Manualslib.com manuals search engine HELPFUL INFORMATION
Circuit Z12 which supplies ground for the PCM
high current drivers, has the same termination point
as circuit Z11. The termination point is the left side
of the radiator closure panel.
If the system loses ground for the ganged circuits,
at the left side of the radiator closure panel, the vehi-
cle will not operate. Check the connection at the
ganged ground circuit eyelet.
DATA LINK CONNECTOR
Circuit A14 supplies battery voltage to the univer-
sal data link connector. Circuit A14 originates in the
Power Distribution Center (PDC) and connects to a
battery fed bus bar. A 20 amp fuse protects circuit
A14.
A twisted pair of wires, circuits D1 and D2, from
the Airbag Control Module (ACM) connect to the uni-
versal data link connector.
Ground circuit Z12 splices to two cavities of the
data link connector. The Z12 circuit also connects to
cavities 10 and 50 of the PCM connector.
Circuit D20 connects to cavity 75 of the PCM and
to the universal data link connector. Circuit D20 is
the SCI receive circuit for the PCM.
Circuit D21 connects to cavity 65 of the PCM and
to the universal data link connector. Circuit D21 is
the SCI transmit circuit for the PCM. The D21 cir-
cuit splices to the ABS module.
HELPFUL INFORMATION
The grounding point for circuit Z12 is the left side
of the radiator closure panel.
Circuit Z12 also supplies ground for the PCM high
current drivers and has the same termination point
as circuit Z11.
If the system loses ground for the ganged circuits
at the left side radiator closure panel the vehicle will
not operate. Check the connection at the ganged
ground circuit eyelet.
AUTOMATIC SHUT DOWN RELAY
The Automatic Shut Down (ASD) relay is located
in the Power Distribution Center (PDC). Power for
the coil and contact side of the relay is supplied on
circuit A14. This circuit is HOT at all times and pro-
tected by a 20 amp fuse located in the PDC.
The Powertrain Control Module (PCM) controls the
ground path for the coil side of the relay on circuit
K51. This circuit connects to cavity 67 of the PCM.
When the PCM supplies the ground path on circuit
K51 the contacts in the relay CLOSE connecting cir-
cuits A14 and A142. The A142 circuit is spliced and
supplies power to the generator, fuel injectors, PCM,
ignition coil, and heated oxygen sensors.
HELPFUL INFORMATION
²Refer to group 14 Fuel System, for additional
information.
²Check the 20 amp fuse located in the PDC.
FUEL PUMP MOTOR
Circuit A14 is a bus bar in the Power Distribution
Center (PDC) and connects to battery voltage. The
contact side of the fuel pump relay connects circuit
A14 and circuit A141. A 20 amp fuse in the PDC pro-
tects circuits A14 and A142.
Circuit A141 supplies voltage for the fuel pump
motor. Circuit Z1 provides ground for the fuel pump
motor. The grounding point for circuit Z1 is the right
rear wheel house.
Circuit F12 supplies voltage to the coil side of the
fuel pump relay. The Powertrain Control Module
(PCM) controls the ground path circuit for the coil
side of the fuel pump relay on circuit K31. Circuit
K31 connects to cavity 74 of the PCM.
HELPFUL INFORMATION
Circuit F12 originates in the fuse block where it
connects to a bus bar fed by circuit A21. In the
START and RUN position, the ignition switch con-
nects circuit A1 from the PDC to circuit A21. A 30
amp fuse in the PDC protects circuits A1 and A21.
Circuit F12 splices to feed the ABS control module,
EGR solenoid, Torque Converter Clutch (TCC) sole-
noid, leak detection pump, and the EVAP/Purge sole-
noid.
Circuit F12 also connects to a bus bar in the PDC.
The bus bar supplies voltage to the coil side of radi-
ator fan relay and A/C clutch relay, as well as the
fuel pump relay.
VEHICLE SPEED SENSOR
Circuit K7 supplies 8 volts from the Powertrain
Control Module (PCM) to the Vehicle Speed Sensor
(VSS). The K7 circuit connects to cavity 44 of the
PCM connector.
Circuit G7 from the VSS provides an input signal
to the PCM. The G7 circuit connects to cavity 66 of
the PCM connector.
The PCM provides ground for the VSS signal (cir-
cuit G7) through circuit K4. Circuit K4 connects to
cavity 43 of the PCM connector.
HELPFUL INFORMATION
Circuit G7 splices to the speedometer and odome-
ter in the instrument cluster.
Circuit K7 splices to supply 8 volts to the camshaft
position sensor and crankshaft position sensor.
Circuit K4 splices to supply ground for the signals
from the following:
²Upstream heated oxygen sensor
²Downstream heated oxygen sensor
PL8W - 30 FUEL/IGNITION SYSTEMS 8W - 30 - 15
DESCRIPTION AND OPERATION (Continued)