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40
ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Ground Points
: Location of Splice Points
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Page 3882 of 4087
41
CODEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
BS1ENGINE ROOM MAIN WIRE AND FLOOR WIRE (LEFT KICK PANEL)
BT1FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL)
BU1INSTRUMENT PANEL WIRE AND FLOOR WIRE (LEFT KICK PANEL)
BV1
BV2FLOOR NO. 3 WIRE AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL CENTER)
BV3
FLOOR NO. 3 WIRE AND CONSOLE BOX WIRE (UNDER THE INSTRUMENT PANEL CENTER)
BW1ENGINE ROOM MAIN WIRE AND FLOOR NO. 3 WIRE (RIGHT KICK PANEL)
BX1FLOOR NO. 3 WIRE AND COWL WIRE (RIGHT KICK PANEL)
BY1INSTRUMENT PANEL WIRE AND FLOOR NO. 3 WIRE (RIGHT KICK PANEL)
BZ1ROOF WIRE AND MOON ROOF WIRE (FRONT SIDE OF ROOF LEFT)
Bc1FLOOR NO 3 WIRE AND FLOOR WIRE (UNDER THE LEFT SIDE OF REAR SEAT CUSHION)Bc2FLOOR NO. 3 WIRE AND FLOOR WIRE (UNDER THE LEFT SIDE OF REAR SEAT CUSHION)
Bd1FLOOR NO. 3 WIRE AND LUGGAGE NO. 2 WIRE (RIGHT SIDE OF LUGGAGE COMPARTMENT)
WhereEverybodyKnowsYourName
Page 3883 of 4087
42
ELECTRICAL WIRING ROUTING
: Location of Connector Joining Wire Harness and Wire Harness
: Location of Splice Points
WhereEverybodyKnowsYourName
Page 3884 of 4087
43
CODEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
Ba1FLOOR WIRE AND FRONT SEAT LH WIRE (UNDER THE FRONT LH SEAT)Ba2FLOOR WIRE AND FRONT SEAT LH WIRE (UNDER THE FRONT LH SEAT)
Bb1FLOOR NO. 3 WIRE AND FRONT SEAT RH WIRE (UNDER THE FRONT RH SEAT)
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102
CORNERING LIGHT
1I
21I 1
55
55
4
4
4 LH
RH
IF EA
OFF
TAIL
HEAD
1K
5
1J
1 IE 1
17 IE1 18
1 2 1
2
E4
4 2
25
10 118
1 13
13 3
12
5
13
6 W±G
R±L
G±W G±R
G±R
R±Y
R±GP±Y R±L
R±G P±Y
W±B W±B R±G
W±B
W±B
W±B R±Y
( CANA DA ) (
USA )
FROM POWER SOURCE SYSTEM
(
SEEPAGE56 )
20A
TURN
CORNERING LIGHT
RELAY
FROM HEADLIGHT
RE LA Y
CORNERING LIGHT SW
[COMB. SW]
COMBINATION
SW
CORNERING LIGHT INTEGRATION
RELAY INTEGRATION
RELAY
LIGHT
CONTROL SW
DIODE
C16
I16 I16
C15C6 C7
LH RH
( USA )
(
CA NA DA )
A
B
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Page 3886 of 4087
![LEXUS SC400 1991 Service Repair Manual
103
CORNERING LIGHT RELAY 3±5 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION
C15 LIGHT CONTROL SW [COMB. SW]
13±4 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION
C16 CORNERING LIGHT SW [COMB. LEXUS SC400 1991 Service Repair Manual
103
CORNERING LIGHT RELAY 3±5 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION
C15 LIGHT CONTROL SW [COMB. SW]
13±4 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION
C16 CORNERING LIGHT SW [COMB.](/manual-img/36/57051/w960_57051-3885.png)
103
CORNERING LIGHT RELAY 3±5 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION
C15 LIGHT CONTROL SW [COMB. SW]
13±4 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION
C16 CORNERING LIGHT SW [COMB. SW]
8±11 : CLOSED WITH TURN SIGNAL LEVER AT LEFT POSITION
8±10 : CLOSED WITH TURN SIGNAL LEVER AT RIGHT POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C 626C1528I16A29 (USA)
C 726C1628I16B29 (CANADA)
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
423LEFT KICK PANEL (J/B NO.1 LEFT)
523LEFT KICK PANEL (J/B NO.1 RIGHT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1I
1J20COWL WIRE
1K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IE136ENGINE ROOM MAIN WIRE AND COWL WIRE (R/B NO. 4)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA34FRONT SIDE OF RIGHT FENDER
IF36LEFT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 434ENGINE ROOM MAIN WIRE
12 56
X1213 A
B
C 6, C 7 C15 C16 I16
I1 6
(
CA NA DA ) (
US A )
BLACK
GRAY
X
XXX13 4
X
X X
8X 10 11
SERVICE HINTS
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Page 3887 of 4087
148
CRUISE CONTROL
1E
12 1K 13 2 1
3F
4
1B
5
3E
1
B BATT
A
1 A
14SPD GND CMS CCS PI TC
A
10 B 20
11
4
10
IG1
7
IK1
10
10A
DOME
15A
ECU±IG
10A
GAUGE
1H
10
CRUISE CONTROL
INDICATOR LIGHT
[COMB. METER]
TDCL CHECKCONNECTOR
CRUISE CONTROL ECU
CRUISE CONTROL SW
[COMB. SW]
E CMS
CCS
MAIN
CANCEL
RESUME/
ACCEL
SET/
COAST
CRUISE CONTROL
A/D TC TC
Y±BY±BL
15
5
R
R B±R
Y
Y
PP W±B
BR
W±B Y±B P±B
P±B P±B R±L
L
Y±B
P±B
Y±B
C19
C15
T6 C3
FROM POWER SOURCE SYSTEM
(
SEE PAGE 56 )
IG1
13
IG1
15
3A
8
3H
12
3E
3
IH IG 20 13 4 18 5 8
6
14 15
3A
4
3D
13
W±B
W±BP±B
C12 ,C1 4
A
B
3C4
2
WhereEverybodyKnowsYourName
Page 3888 of 4087
149
1K
4 1I
10
B
9B 64 A 12
1
IJ2
2IJ2 1IJ1
6
PARKING
BRAKE SWM42
4 31
5
7
6
23
1 25A
STOP
7. 5A
ST
POTENTIO METER
CRUIS E CONTROL ACTUATOR GN DL
MC
MO
VR3
VR2
VR1
MAGNETIC
CLUTCH
S2 IDL1 OD1
ECT IDL OD VR1 VR2 VR3 MC MO L STP±
N& C STP+
CRUISE CONTROL ECU
STOP
LIGHT
SW
B±W B±W
W
B±W
W
W
G±W BR±Y
R
W±R
W±R
R
BR±Y
R±B
LG±R P
LG
G±R
W
R±L R±B
LG±R P
LG
G±R B±W
W±B
I9
S12
C19
P3C8
FROM POWER SOURCE SYSTEM
(
SEE PAGE 56 )
R±W
B
PKB
ENGINE AND ECT ECU E9 ,E10
I7
EA
IE 2
10
IE2
11
IE2
5
IE2
1
IE2
6
IE2
2
IG1
19
IJ2
9
B (
CANA DA )
(
USA )
R±L
22 23 9 3 24 25 26 12 11 10 16 1
A B IJ2
10
I9
C24 C23
CLUTCH
START SW CRUISE
CONTROL
CLUTCH SW(
A/T )
B±W
BB±W
B±W
B±W
(
A/T )
(
A/T )
1
2
2
21
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