Downloaded from www.Manualslib.com manuals search engine 5FUSE10A
25
RUN A22
BLOCK FUSE
5
F20
20
WT
F20
20
WT
F20
20
WT
S211
3C103
2
3
T41
20
BR/YL
T41
20
BR/YL
S106
76
MODULE CONTROL
POWERTRAIN
PARK/
NEUTRAL
POSITION
SWITCH
SENSE62
MODULE CONTROL
POWERTRAIN
STOP
LAMP
SWITCH
SENSE
25FUSE15A
25
BATT A0
73
2
16
5
K29
20
WT/PKF32
18
PK/DB
SWITCH LAMP
STOPCENTER DISTRIBUTION
POWER
Z12
20
BK/TN
Z12
20
BK/TN
G102
S104
WT/TN20 L50
WT/TN20 L50
NO
CONNECTION
SWITCH POSITION
NEUTRAL
PARK/C1
C1
(A/T)
1
2C105
L50
22
WT/TNL50
20
WT/TN
S101
13
CONTROLLER
ANTI-LOCK
BRAKE
L50
20
WT/TN
L50
22
WT/TN
NO
CONNECTION
A/T M/T
(A/T)
(8W-11-8)(8W-11-2) (8W-10-4)
(8W-11-8)
(8W-21-2)(8W-10-9)(8W-10-4)
(8W-10-4)
(8W-15-3) (8W-21-2)
(8W-35-4)
(8W-15-3)
8W - 30 - 12 8W-30 FUEL/IGNITION SYSTEMPL-RHD
978W-1PLR03011
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)
Downloaded from www.Manualslib.com manuals search engine ²Circuit K59 connects to cavity 58 of the PCM
connector.
²Circuit K60 connects to cavity 49 of the PCM
connector.
POWER STEERING PRESSURE SWITCH
The power steering pressure switch opens and
closes circuit K10 between the Powertrain Control
Module (PCM) and ground. Circuit K10 connects to
cavity 45 of the PCM connector.
Circuit Z12 provides ground for the power steering
pressure switch. The grounding point for circuit Z12
is the left side of the radiator closure panel.
TORQUE CONVERTER CLUTCH SOLENOID (TCC)
The Powertrain Control Module (PCM) operates
the TCC solenoid by providing a ground path on cir-
cuit K54. Circuit K54 connects to PCM cavity 79.
Circuit F12 supplies battery voltage to the TCC
solenoid. Circuit F12 connects to a bus bar in the
fuse block fed by circuit A21. A 15 amp fuse in the
fuse block, cavity 10, protects circuit F12. Circuit F12
connects to cavity 20 of the PCM connector.
HELPFUL INFORMATION
Circuit F12 splices to feed the ABS control module,
PCM, EGR solenoid, leak detection pump, and the
duty cycle EVAP/Purge solenoid. The F12 circuit also
connects to a bus bar in the PDC that supplies volt-
age to the coil side of radiator fan relay, A/C clutch
relay, and fuel pump relay.
In the RUN or START position, the ignition switch
connects circuit A1 from the fuse block and circuit
A21. Circuit A1 connects to battery voltage and is
protected by a 30 amp fuse in the PDC.
DUTY CYCLE EVAP/PURGE SOLENOID
Circuit F12 supplies battery voltage to the Duty
Cycle EVAP/Purge solenoid. The Powertrain Control
Module (PCM) switches ground path for the solenoid
ON and OFF through circuit K52.
Circuit F12 connects to a bus bar in the fuse block
fed by circuit A21. A 15 amp fuse in the fuse block,
cavity 10, protects circuit F12. Circuit F12 also con-
nects to cavity 20 of the PCM connector.
Circuit K52 connects to cavity 68 of the PCM, and
cavity 1 of the solenoid connector.
HELPFUL INFORMATION
Circuit F12 splices to feed the ABS control module,
PCM, EET solenoid, leak detection pump, and the
TCC solenoid. The F12 circuit also connects to a bus
bar in the PDC that supplies voltage to the coil side
of radiator fan relays, A/C clutch relay, and fuel
pump relay.
In the START or RUN position, the ignition switch
connects circuit A1 from the fuse block and circuitA21. Circuit A1 connects to battery voltage and is
protected by a 30 amp fuse in the PDC.
EGR TRANSDUCER (EET) SOLENOID
Circuit F12 supplies battery voltage to the EET
solenoid. The Powertrain Control Module (PCM)
switches ground path for the solenoid ON and OFF
through circuit K35.
Circuit F12 connects to a bus bar in the fuse block
fed by circuit A21. A 15 amp fuse in the fuse block,
cavity 10, protects circuit F12. Circuit F12 also con-
nects to cavity 20 of the PCM.
Circuit K35 connects to cavity 40 of the PCM con-
nector.
HELPFUL INFORMATION
Circuit F12 splices to feed the ABS control module,
PCM, Duty Cycle EVAP/Purge solenoid, leak detec-
tion pump, and the TCC solenoid. The F12 circuit
also connects to a bus bar in the PDC that supplies
voltage to the coil side of radiator fan relays, A/C
clutch relay, and fuel pump relay.
In the START or RUN position, the ignition switch
connects circuit A1 from the fuse block and circuit
A21. Circuit A1 connects to battery voltage and is
protected by a 30 amp fuse in the PDC.
LOW FUEL DETECT INPUT
Circuit G4 provides an input to the Powertrain Con-
trol Module (PCM) indicating fuel tank level. This cir-
cuit connects to cavity 23 of the PCM connector.
The G4 circuit is also used for the fuel gauge
located in the instrument cluster. For operation of
the fuel gauge, refer to section 8W-40.
PARK/NEUTRAL POSITION SWITCH INPUT (3±SPD
TRANSMISSION)
On vehicles equipped with the 3±spd automatic
transmission the park/neutral switch provides an
input to the Powertrain Control Module (PCM).
When CLOSED, the park/neutral position switch
provides a ground path on circuit T41 for the coil
side of the engine starter motor relay. The case
grounded switch provides ground for circuit T41.
Circuit A41 from the ignition switch provides bat-
tery voltage to the coil side of the relay.
Circuit T41 splices to cavity 76 of the PCM. The
park/neutral position switch provides an input to the
Powertrain Control Module (PCM).
HELPFUL INFORMATION
In the START position, the ignition switch connects
circuit A1 from the Power Distribution Center (PDC)
to circuit A41. A 30 amp fuse protects circuits A1 and
A41.
PL8W - 30 FUEL/IGNITION SYSTEMS 8W - 30 - 19
DESCRIPTION AND OPERATION (Continued)
Downloaded from www.Manualslib.com manuals search engine 8W-35 ANTI-LOCK BRAKES
INDEX
page
SCHEMATICS AND DIAGRAMS........................................................... 1
DESCRIPTION AND OPERATION.......................................................... 6
Component Page
ABS Hydraulic Modulator..............8W-35-4
ABS Pump Motor....................8W-35-3
ABS Pump Motor Relay.............8W-35-2, 3
ABS Relay Box....................8W-35-2, 3
ABS System Relay...................8W-35-2
ABS Warning Lamp..................8W-35-2
Controller Anti-Lock Brake.......8W-35-2, 3, 4, 5
Data Link Connector..................8W-35-3
Fuse 10 (FB)........................8W-35-2
Fuse 10 (PDC).......................8W-35-3
Fuse 25 (PDC).......................8W-35-4
Fuse Block.........................8W-35-2
G101..........................8W-35-2, 3, 4
G102..............................8W-35-4Component Page
Instrument Cluster...................8W-35-2
Left Front Wheel Speed Sensor..........8W-35-5
Left Rear Wheel Speed Sensor..........8W-35-5
Power Distribution Center...........8W-35-3, 4
Pump Motor Driver...................8W-35-3
Right Front Wheel Speed Sensor........8W-35-5
Right Rear Wheel Speed Sensor.........8W-35-5
S101..............................8W-35-4
S103..............................8W-35-3
S104..............................8W-35-4
S108..........................8W-35-2, 3, 4
S109..............................8W-35-2
S210..............................8W-35-3
Stop Lamp Switch....................8W-35-4
8W - 35 - 2 8W - 35 ANTI-LOCK BRAKESPL
Downloaded from www.Manualslib.com manuals search engine 10FUSE15A
10
30
1
10
ABS
RELAY
BOX
F12
18
DG/WT
1547
CONTROLLER
ANTI-LOCK
BRAKEABS
SYSTEM
RELAY
OUTPUT
G101
Z1
14
BK
Z1
14
BK
S108 BLOCK FUSE
ST-RUN A21
7
9
C22
CLUSTER
INSTRUMENT
G19
22
LG/OR
G19
20
LG/BR
1C103
ABS
SYSTEM
RELAY
CONTROL
G19
20
LG/BR
F12
20
DG/WT
6C101
S109
F12
20
DG/WT
B47
20
RD/LB
60
B57
20
BR/BK
ABS
SYSTEM
RELAY LAMP WARNING
ABSABS
PUMP
MOTOR
RELAY
4
57
CONTROLRELAY SYSTEMABSDRIVERLAMP WARNINGABS(8W-11-9)
(8W-15-2) (8W-15-2) (8W-11-2)
(8W-40-5)
(8W-11-9) (8W-10-12)
8W - 35 - 2 8W-35 ANTI-LOCK BRAKESPL-RHD
978W-1PLR03501
Downloaded from www.Manualslib.com manuals search engine 10FUSE40A
73
10
5 7
M
- +
- +
3610
POWER
DISTRIBUTION
CENTER BATT A0
DATA
LINK
CONNECTOR
D21
20
PK
ABS
RELAY
BOX
A20
12
RD/DG
5116 20
CONTROLLER
ANTI-LOCK
BRAKEABS
PUMP
MOTOR
RELAY
CONTROLSENSE MOTORPUMPABS SCI
TRANSMIT
G101
Z1
14
BK
Z1
14
BK
S108
D21
20
PKB116
20
GYB120
12
BR/WT
B120
16
BR/WT
S103
ABS
PUMP
MOTOR
S210
ABS
PUMP
MOTOR
RELAYDRIVER MOTOR
PUMP
(8W-10-7)(8W-10-4) (8W-10-4)
(8W-30-4)
(8W-15-2) (8W-15-2) (8W-11-11)
PL-RHD8W-35 ANTI-LOCK BRAKES 8W - 35 - 3
PLR03502978W-1
Downloaded from www.Manualslib.com manuals search engine LEFT
FRONT
DECAY
SOLENOID
CONTROL CONTROLSOLENOIDDECAYREARLEFT RIGHT
REAR
DECAY
SOLENOID
CONTROL CONTROL SOLENOIDDECAY FRONTRIGHT
LEFT
FRONT
DECAY
SOLENOID
CONTROL CONTROLSOLENOIDDECAYREARLEFT RIGHT
FRONT
DECAY
SOLENOID
CONTROL CONTROLSOLENOIDDECAYREAR RIGHT
65OUTPUTSWITCHLAMPSTOP
S108
5 GROUND
15A
FUSE
25
POWER
DISTRIBUTION
CENTER
25
26
F32
18
PK/DB
5 6
STOP
LAMP
SWITCH
L50
20
WT/TN
S101
L50
20
WT/TN
Z1
18
BKZ1
18
BK
Z1
14
BK
G101
Z12
18
BK/TN
Z12
18
BK/OR
13
B142
20
BR/YL
B146
20
BR/LBB143
20
DG/YLB148
20
DB/LB
42464348
G102 S104 MODULATOR HYDRAULIC
ABSBRAKE ANTI-LOCK
CONTROLLER
BATT A0
4 2 3 1
(8W-15-2)(8W-10-9)(8W-10-4)
(8W-30-12)
(8W-30-12)
(8W-15-2) (8W-15-3)(8W-15-3) (8W-10-4)
8W - 35 - 4 8W-35 ANTI-LOCK BRAKESPL-RHD
978W-1PLR03503