YB56
TEMP
BODY
CONTROL
MODULE
BLU/W
8
W/B
YE25
BR
3
YB192
O/W
YB198
LOC. G10
(875)
YR44
TRIP COMPUTER SWITCH
ILLUMINATION
(831)
6
3
YB33
YB44
11
ENGINE 12V BUS
17
3
T
REFER TO SHT
6A FOR HIGH BEAM
& FOG LAMP
OPERARTION
10
YB165
(946)
SERIAL
DATA
YE112
11
(2H)
1
(86)
(151)
CLASS 2
SERIAL
DATA
2
(2K)
LOC. E1
D2
BATTERY
YB164
SEAT
BELT
J2-20
J2-50
F21
YE14
BLU
YB74
ELECTRONIC
GROUND
9
(8150)
SECURITY LED
YB215
LOW
COOLANT
WARNING
LAMP
YB33
REFER
SHT. 6,7,10,
11,16.
YE114
5
+12V
-
YB165
OIL
PRESS
YE123
REFER TO SHT
20A & 20B
FOR A.B.S
OPERATION
7
YE111
BR
P
4
HIGH
BEAM
IND.
LAMP
A.B.S
OFF
WARNING
LAMP
YE122
FS
GENERATOR
WARNING
LAMP
G/W
YE114
(19)
SDI
YB12
PARK
BRAKE
SWITCH
10
(49)
6
B/Y
15
ACTUATOR
J2-10
OPERATE
BLU/Y
12
BRAKE
FAIL
WARNING
IGNITION
SWITCH
REFER TO SHT
8A
FOR TURN SIGNAL
OPERATION
LOW
FUEL
WARNING
LAMP
LOC. E3
TACHO
(1340)
J
BATTERY
15
B/Y
MODEL
(3)
(15)
V8 ONLY
GENERATOR
R/B
A.B.S.
MODULE
PARK
LAMPS
RELAY
B/Y
INSTRUMENT
ASSEMBLY
LOC. G18
(740)
BR/R
(8)
YE98
(85)
CRUISE
ON
YB195
YB132
(151)
ILLUMINATION
2
MODE
CRUISE CONTROL
DIMMER
LIGHT
SWITCH
CRUISE
ACTIVE
(1049)
YE104
2
R
B
LOC. E3
(10)
YB56
YB74
D
14
T
11
B/G
5
2
(25)
(155)
YB192
B
(840)
YE110
11
YB74
LOC. E3
1
SDI
TRIP COMPUTER SWITCH
VU
REFER TO
SHT 15A
FOR MANUAL
TRANSMISSION
CRUISE CONTROL
OPERATION.
YR44
C1
(832)
YB215
14
13 18
YB33
YB44
B/G
REFER
SHT. 3,4,5B,C,D,F,
6,10,15,16,
20,21.
(1040)
BR/O
RIGHT
(234)
YE112
R
(30)
FAIL
D1
REFER
SHT. 6.
BLU/B
POWER
SHIFT
YB128
REFER
SHT. ALL
(14)
YB160
TURN SIGNAL
INDICATOR LAMPS
F11
BR
LOC. E3
LIGHT
SWITCH
GEN 3
POWER TRAIN
CONTRL MODULE
SDI
YB164
5
(33)
9
YE114
F31
K
+
C13
YB164
TIMER
J1-58
DISPLAY
ILLUMINATION
J2-21
(121)
BR
POWER
GROUND
DATA LINK
CONNECTOR
(1220)
(123) (44)
YE114
BR/W
V/R
6
YE56
BLU
CHECK
POWER
TRAIN
V8 ONLY
(451)
YE57
(9)
LOC. G19
LBLU
19
5
FOG
LAMPS
POWER TRAIN
INTERFACE
MODULE
FQ
GY
SERIAL
DATA
YE114
S.R.S
WARNING
LAMP
(155)
O/Y
FUEL
YB12
SDI
BRAKE
FAIL
WARNING
SWITCH
(155)
INSTRUMENTS
(1150)
BODY
CONTROL
MODULE
STOP
LAMPS
SWITCH B
YE110
YE123
16
(1221)
FJ
OVER
SPEED
WARNING
LAMP
O/B
PARK
BRAKE
INPUT
-
YB164
SPEEDO
YB163
W
20
6
G
LOC. E3
F13
E
P/BLU
+
LEFT
7
Y
YB33
V/W
REFER
SHT. 6,10,
11,16.
GND
SDI
F4
ALL MODELS
17A
T
AUTO & MANUAL V8
SPEED SENDER
(832)
(831)
YB195 BLU/W
AUTO V6
SPEED SENDER
(832)
(831)
(831)
BLU
YB132
T
BR
(832)
MANUAL V6
SPEED SENDER
BLU/W
YB195
FUEL
TANK
SENDER
NOTE:- CONVENTIONAL CURRENT FLOW IS ASSUMED IE.
FLOWING FROM BATTERY +VE TO BATTERY -VE
INSTRUMENT ASSEMBLY
DIRECT
IGNITION
MODULE
POWER TRAIN
CONTROL MODULE
ECOTEC V6
(V6 ONLY)
YB66
YB66
YB66
15a 15 50
30
OFF/ON
LOCK
ACC
IGN
START
VU12P17A
VIEW
C
YE111
ENGINE
CONNECTOR (2)
YE110
ENGINE
CONNECTOR (1)
YE112
ENGINE
CONNECTOR (3)
YE122
P.C.M.
CONNECTOR (1)
(BLUE)
YE123
P.C.M.
CONNECTOR (2)
(RED)
WIRING DIAGRAMS
HARNESS SYMBOLS: (BAT.)
(M.W.H.) (B.)
(P.T.)(E.) YE25
GENERATOR
CONNECTOR
VIEW
" V6"AUTOMATIC
SHOWN
YB195
AUTOMATIC
TRANSMISSION
SPEED SENDER
CONNECTOR
E
YE114
LOCATION
E3 EARTH
CONNECTOR
VIEW
A
FUSE 31
FJ
FQ FS
RELAY & FUSE PANEL
YB12
STOP LAMP
SWITCH
CONNECTOR (B)
VIEW
I
YB128
DATALINK
CONNECTOR
YB44
IGNITION
SWITCH
CONNECTOR
J
I
K
M
VIEW
H
YB56
TRIP
COMPUTER
SWITCH
CONNECTOR
YB66
INSTRUMENT
CONNECTOR
YB33
LIGHT SWITCH
CONNECTOR
L
YB160
PARK BRAKE
SWITCH
CONNECTOR
VIEW
M
YE25
GENERATOR
CONNECTOR
YB195
AUTOMATIC
TRANSMISSION
SPEED
SENDER
CONNECTOR
VIEW
G
"GEN III"
AUTOMATIC
VIEW
F
“GEN III”
MANUAL
YB195
MANUAL
TRANSMISSION
SPEED SENDER
CONNECTOR
YB132
MANUAL
TRANSMISSION
SPEED SENDER
CONNECTOR
VIEW
"V6" MANUAL
D
YB215
POWERTRAIN
INTERFACE
MODULE
CONNECTOR
VIEW
L
“GEN III”
YE104
BATTERY
HARNESS
CONNECTOR
VIEW
B
YR44
FUEL TANK
CONNECTOR
RELAY & FUSE PANEL
YB192
PARK LAMPS
RELAY
FUSE 21
FUSE 13
FUSE 4
FUSE 11
H
YE98
A.B.S.
MODULATOR
& CONTROL
MODULE
CONNECTOR
YE56
CRUISE
CONTROL
ACTUATOR
CONNECTOR
YE57
DIRECT IGNITION
MODULE
CONNECTOR
“V6 S/C” SIMILAR
YE14
BRAKE FAIL
WARNING
SIGNAL
CONNECTOR
"V6" SHOWN
E
D
H
G
YE98
A.B.S.
MODULATOR
& CONTROL
MODULE
CONNECTOR
YE56
CRUISE
CONTROL
ACTUATOR
CONNECTOR
YE14
BRAKE FAIL
WARNING
SIGNAL
CONNECTOR
"GEN III" SHOWN
F
B
A
C
YB164
B.C.M.
CONNECTOR (3)
YB163
B.C.M.
CONNECTOR (2)
YB165
B.C.M.
CONNECTOR (4)
YB74
BODY
HARNESS
CONNECTOR
J
VIEW
VIEW
K
“V6”
YB198
P.C.M.
CONNECTOR (1)
A
C
B