relay LEXUS SC300 1991 Service Repair Manual

222
COMBINATION METER
O/D OFF
CRUISE CONTROL
3A
10 3A 9
3C
1
IG1
5 1I
3
A
5
G±O
G±O
G±O
C
5C 4C3C2
413
A
20 A 18
3C
43B 4
3D
63D 53D5
3F
4
3E
1
IG1
15
TO ENGINE AND
ECT ECU (
OD2 )
TO CRUISE
CONTROL
ECU
(
PI )
TO TDCL
( A/D )
TO O/D MAIN SW TO TDCL (
ECT )
RHEOSTAT
2 87
G± O
G±O
G±O
FROM POWER SOURCE SYSTEM(
SEE PAGE 56 )
7. 5A
PANEL (CANADA )
( CANADA )
(
USA )
I16
INTEGRATION
RELAY
COMBINATION METER C12 , C 1 3 , C1 4 ABC
Y±B
BR
Y±V L±B
L
G±O
Y±B
Y±B
Y±B
W±B
W±B 12
GR±R
GR±R
GR±R
GR±R WASHER
B
9
IE 1
10 IG1
18
1
EB
W1
WASHER LEVEL SW P±L
P±L
P±L
W±B
3H 1
G±O
TO A/T INDICATOR LIGHT
( FOR SHIFT LEVER )
ILLUMINATION I8
L
L
TO A/C AND AUDIO
ILLUMINATION
A
2 R9
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223
COMBINATION METER
B 1 BRAKE FLUID LEVEL SW
1±2 : CLOSED WITH FLOAT DOWN
P 3 PARKING BRAKE SW
1±GROUND : CLOSED WITH PARKING BRAKE LEVER PULLED UP
O 2 OIL PRESSURE SW
1±GROUND : CLOSED WITH OIL PRESSURE BELOW APPROX. 0.2 KG/CM2 (2.8 PSI, 20 KPA)
W 3 WATER TEMP. SENDER
1±GROUND : APPROX. 226
(50 °C, 122 °F)
APPROX. 25
(11 5 °C, 239 °F)
E 6 ENGINE OIL LEVEL WARNING SW
1±2 : CLOSED WITH FLOAT UP AND ENGINE OIL TEMP. AT BELOW APPROX. 55°C ( 131 °F)
OPEN WITH FLOAT DOWN AND ENGINE OIL TEMP. AT BELOW APPROX. 60°C ( 140 °F)
F18(A) FUEL SENDER
2±3 : APPROX. 3
AT FUEL FULL
APPROX. 11 0
AT FUEL EMPTY
C14 (C) COMBINATION METER
1±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ON POSITION
12±GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ST POSITION AND SHIFT LEVER AT P OR N RANGE
10±GROUND : ALWAYS CONTINUITY
22±GROUND : ALWAYS CONTINUITY
11±GROUND : ALWAYS APPROX. 12 VOLTS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A1026E 626R 929
B 126F17B30S 327
C12A28F18A30S22B29
C13B28I 227S23A29
C14C28I16A29T1529
D 128O 227W 127
D 228P 329W 327
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
219ENGINE COMPARTMENT LEFT
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20ENGINE ROOM MAIN WIRE
IE20INSTRUMENT PANEL WIRE
1G20COWL NO. 2 WIRE
1H
1I20COWL WIRE1J20COWL WIRE
1K
3A
3B
3C
3D22INSTRUMENT PANEL WIRE
3E
3F
3H
SERVICE HINTS
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29
Position of Parts in Instrument Panel
H 7 Hazard SW S 10 Shift Lock ECUS 11 Step Light
I 14 Ignition Key Cylinder Light S 12 Stop Light SW
I 15 Ignition SW, Unlock Warning SW and Key Inter Lock Solenoid S 22 Short Connector
I 16 Integration Relay S 23 Short Connector S 24 Seat Heater SW (for M/T)
K 3 Kick Down SW T 6 TDCL (Total Diagnostic Communication Link)
L 1 Luggage Compartment Door Open SW T 7 Telescopic Position Sensor T 8 Theft Deterrent and Door Lock Control ECU
N 4 Noise Filter (for A/C System) T 9 Theft Deterrent and Door Lock Control ECU T 10 Tilt and Power Telescopic ECU
O 5 O/D Main SW T 11 Tilt and Power Telescopic ECU T 12 Traction Cut SW and Seat Heater SW (for A/T)
P 2 PPS ECU T 13 Traction ECU (for A/T)
P 3 Parking Brake SW T 14 Traction ECU (for A/T) T 15 Trip SW and Theft Deterrent Indicator Light
R 2 Radio and Player
R 3 Radio and Player W 6 Water Temp. Sensor (for A/C System)
R 4 Radio and Player (w/ CD Player) W 7 Wireless Door Lock Main SW
R 5 Radio and Player (w/o CD Player)
R 6 Radio and Player (w/o CD Player)
R 7 Remote Control Mirror ECU
R 8 Remote Control Mirror ECU
R 9 Rheostat
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30
ELECTRICAL WIRING ROUTING
Position of Parts in Body
A 30 ABS Speed Sensor Rear LH D 10 Door Lock Motor, Door Unlock Detection SW and
A 31 ABS Speed Sensor Rear RH Door Open Detection SW LH
A 32 Auto Antenna Motor and Relay D 11 Door Lock Motor, Door Unlock Detection SW andDoor Open Detection SW RH
C 20 CD Automatic Changer D 12 Driving Position Memory and Return SW
C 21 CD Automatic Changer
C 22 Choke Coil F 11 Front Door Speaker LH F 12 Front Door Speaker RH
D 4 DAY/NIGHT Shift SW F 14 Fuel Lid Opener Solenoid
D 5 Door Courtesy Light LH F 15 Fuel Pump
D 6 Door Courtesy Light RH F 16 Fuel Pump ECU
D 7 Door Key Lock and Unlock SW LH F 17 Fuel Sender
D 8 Door Key Lock and Unlock SW RH F 18 Fuel Sender
D 9 Door Lock Control SW RH H 8 High Mount Stop Light (w/o Rear Spoiler)
H 9 High Mount Stop Light (w/ Rear Spoiler)
L 2 Licence Plate Light
L 3 Light Failure Sensor
L 4 Luggage Compartment Door Opener Motor
L 5 Luggage Compartment Key Unlock SW
L 6 Luggage Compartment Light SW
L 7 Luggage Compartment Light
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31
Position of Parts in Body
M 1 Mobilephone R 16 Remote Control Mirror LH
M 2 Moon Roof Control Relay R 17 Remote Control Mirror RH
M 3 Moon Roof Control SW R 18 Remote Control Mirror SW
M 4 Moon Roof Motor and Limit SWS 13 Stereo Power Amplifier
O 8 Oxygen Sensor Sub (for California) S 14 Stereo Power Amplifier
P 4 Power Window Control SW RH T 16 Telephone Transceiver and Speaker Relay
P 5 Power Window Master SW and Door Lock Control SW LH T 17 Telephone Transceiver and Speaker Relay
P 6 Power Window Motor LH T 18 Tension Reducer Solenoid LH
P 7 Power Window Motor RH T 19 Tension Reducer Solenoid RH
P 20 Personal Light V 5 Vanity Light LH
R 10 Rear Combination Light LH V 6 Vanity Light RH
R 11 Rear Combination Light RH
R 12 Rear Speaker LH W 8 Wireless Door Lock ECU
R 13 Rear Speaker RH W 9 Woofer Speaker
R 14 Rear Window Defogger (+) W 10 Woofer Speaker Amplifier
R 15 Rear Window Defogger (±)
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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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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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152
CRUISE CONTROL
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C 326C1928P 329
C 826C2328S1229
C12B28C2428T 629
C14A28E 9A28
C1528E10B28
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
219ENGINE COMPARTMENT LEFT
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20ENGINE ROOM MAIN WIRE
1E20INSTRUMENT PANEL WIRE
1H
1I20COWL WIRE
1K
20COWL WIRE
3A
3C
3D22INSTRUMENT PANEL WIRE3E22INSTRUMENT PANEL WIRE
3F
3H
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IE236ENGINE ROOM MAIN WIRE AND COWL WIRE (BEHIND GLOVE BOX)
IG136INSTRUMENT PANEL WIRE AND COWL WIRE (R/B NO. 5)
IJ136ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)IJ236ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)
IK136ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA34FRONT SIDE OF RIGHT FENDER
IG36INSTRUMENT PANEL BRACE LH
IH36UNDER THE ASHTRAY LH
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 738COWL WIREI 938COWL WIRE
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126
ECT AND A/T INDICATOR
21I
5
22 EB1 8 EB14
A
24 A 33 A 12 A1
A
32 A 31 B 10 B8
22
EB2
3
I33 IJ2
11
EB B±Y
B±O
B±R
B±Y
B±O B±Y
B±O
W±B
B±R
B±Y
BR±Y B±O B±O
B±R
B±R
LG
R±L
B±R
W±B
FROM POWER SOURCE SYSTEM (
SEE PAGE 56 )
30A
EFI
3
13
WY
M±REL BATT OD1 IGSW +B1 +B S1 S3
FROM
CRUISE CONTROL ECU (
OD )
7. 5A
IGN
21
43
ENGINE AND ECT ECU
ECT SOLENOID
E9
,E10
B
A
NO. 1
NO. 3
EFI
MAIN
RELAY 4
B
9
W±R
2
B
S2
NO. 2
E1
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132
ECT AND A/T INDICATOR
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A2128E 226S 927
C 326E 828S22B29
C12C28E 9A28S23A29
C13B28E10B28T 227
C14A28N 127T 629
D1326O 529S 327
E 126S 427
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
219ENGINE COMPARTMENT LEFT
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1E20INSTRUMENT PANEL WIRE
1H
1I20COWL WIRE1J20COWL WIRE
1K
3A
3B22INSTRUMENT PANEL WIRE3D22INSTRUMENT PANEL WIRE
3H
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
EB134ENGINE WIRE AND ENGINE ROOM MAIN WIRE (FRONT SIDE OF R/B NO 2)EB234ENGINE WIRE AND ENGINE ROOM MAIN WIRE (FRONT SIDE OF R/B NO. 2)
IG236INSTRUMENT PANEL WIRE AND COWL WIRE (R/B NO. 5)
IJ136ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)IJ236ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)
IK136ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EB34FRONT SIDE OF LEFT FENDER
ED34REAR SIDE OF CYLINDER HEAD RH
IF36LEFT KICK PANEL
IH36UNDER THE ASHTRAY LH
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E1834ENGINE WIREI2238INSTRUMENT PANEL WIRE
E2034ENGINE WIREI3238ENGINE WIREI1938INSTRUMENT PANEL WIREI3338ENGINE WIRE
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