Discovery electrical Manual — part 11
SEQUENTIAL MULTIPORT FUEL INJECTION (SFI–V8) (NAS ONLY)
A3
6
CIRCUIT DIAGRAM
15
F 3
20 A
S149
E102
S143
Z132
Engine Control
Module (ECM)
P127
Satellite Fuse
Box 1
WG
GR
OG
34
C1017
33
See Fuse Details
X160
Right Heated
Oxygen Sensor
Z193
Left Heated Oxy-
gen Sensor
Shield
Z194
Right Heated
Oxygen Sensor
Shield
X139
Left Heated Oxy-
gen Sensor
Z193
Left Heated Oxy-
gen Sensor
Shield
Z194
Right Heated
Oxygen Sensor
Shield
Z132
Engine Control
Module (ECM)
YB
S144
SCR
WO
NU
WG
WO
SCR
S146
Partial
A3-7
C
21
C1032 32
C1017
See Ground Dis-
tribution
1
C113
2
C113
3
1
C112
3
4
2
C112
4
RB
NAS
SEQUENTIAL MULTIPORT FUEL INJECTION (SFI–V8) (NAS ONLY)
A3
7
CIRCUIT DIAGRAM
15
F 3
20 A
S151
E102
S143
Z132
Engine Control
Module (ECM)
P127
Satellite Fuse
Box 1
WG
GW
R
17
C1017
8
See Fuse Details
X289
Left Heated Oxy-
gen Sensor (Post
Catalyst)
Z266
Left Heated Oxy-
gen Sensor (Post
Catalyst) Shield
Z267
Right Heated
Oxygen Sensor
(Post Catalyst)
Shield
X290
Right Heated
Oxygen Sensor
(Post Catalyst)
Z266
Left Heated Oxy-
gen Sensor (Post
Catalyst) Shield
Z267
Right Heated
Oxygen Sensor
(Post Catalyst)
Shield
Z132
Engine Control
Module (ECM)
U
S144
SCR
WU
NW
WG
WU
SCR
S147
Partial
28
C1032
See Ground Dis-
tribution
A3-6
C
1
C1020
2
C1020
3
1
C1019
3
4
2
C1019
4
NAS
SEQUENTIAL MULTIPORT FUEL INJECTION (SFI–V8) (NAS ONLY)
A3
8
CIRCUIT DIAGRAM
480
Z132
Engine Control
Module (ECM)
OB
18
6
Z163
Theft Alarm Unit
P
R
N
D
3
2
1
Z273
Neutral Sense
Diode
S322
X167
Park/Neutral
Position Switch
See Ground Dis-
tribution
S343
5
C105
E201
C1017
C1027
S288
9
C105
See Ground Dis-
tribution
BY
YB
BY
5
C323
B
K166
Neutral Sense
Resistor
BO
4
C323
BG
B
HJ11
Automatic Trans-
mission
Manual Trans-
mission
C274
Starting and
Charging
11
C105
10
11
C274
E200
With Theft Alarm
Without Theft
Alarm
10
C274
B
11
C274
E200
See Ground Dis-
tribution
See Ground Dis-
tribution
S204
HJ3
NAS
BO
BO
SEQUENTIAL MULTIPORT FUEL INJECTION (SFI–V8) (NAS ONLY)
A3
9
CIRCUIT DIAGRAM
15
F 14
10 A
S214
P126
Fascia Fuse Box
15
C208
See Fuse Details
LG
Z142
Instrument
Cluster
[12] Vehicle
Speed Out-
put
MALFUNCTION
INDICATOR
LAMP
(CHECK ENGINE)
1
C222
4
C221
17
C209
YK
S2030
HJ2
Instruments
5
C1027
[12]
27
Z132
Engine Control
Module (ECM)
2
RS
11
22
C1032
C2083
C1026
7
1
WLG
15
2
WK
S2114
S2108
Data Link Con-
nector
C1017
23
20
X318
Data Link Con-
nector (OBDII)
2
C222
S2103
Warnings and
Indicators (NAS)
HJ9
NAS
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