1997 TOYOTA SUPRA relay

I11I11
B 9 I24 BQ1 4
IC1 6
34 12
34 12
221
BQ1 2
BI IGIG Y- R Y- RB
B
Y- R
Y
Y- R
B
Y- R
B L W- BL W- B
W- B
W- B W- B
W- B W- BW- BB
1 462 FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
Y
IC1 7
BQ1 3
B B
S 6
SEAT HEATER SWSEAT HEATER
(
DRIVER' S SEAT)
SEAT HEATER
(
FRONT PASSENGER' S SEAT) S12
S13SEAT HEATER RELAY
(
DRIVER' S SEAT) S14
SEAT HEATER RELAY
(
FRONT PASSENGER' S SEAT) S15
15A
SEAT- HTR
1H 16
1
LH RH
192
SEAT HEATER (CANADA)

1 2
2 1SEAT BELT
WARNING LIGHT
[TELLTALE
LIGHT RH] T 6
Y
W- B
IE BI
R- B R- BY W- B
DOOR COURTESY
SW LH D10
2 3
I 7IC2 15
W- B
W- B W- B
B- W W- B
161
R
R
1B 5
1J 11C12 1I16 1I 15 INTEGRATION RELAY
86 5 17
10
1K 121E 1
Y-
9
1E 12 27. 5A
DO ME10A
GAUGE FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
2 1

UNLOCK
WARNING SWBUCKLE
SW LH B 6 U 1
194
UNLOCK AND SEAT BELT WARNING

195
CURRENT ALWAYS FLOWS TO TERMINAL 1 OF THE INTEGRATION RELAY THROUGH DOME FUSE.
1. SEAT BELT WARNING SYSTEM
WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS FROM THE GAUGE FUSE TO TERMINAL 7 OF THE
INTEGRATION RELAY. AT THE SAME TIME, CURRENT FLOWS TO TERMINAL 9 OF THE RELAY FROM THE GAUGE
FUSE THROUGH THE SEAT BELT WARNING LIGHT. THIS CURRENT ACTIVATES THE INTEGRATION RELAY AND
CURRENT FLOWING THROUGH THE WARNING LIGHT FLOW FROM TERMINAL 9 OF THE RELAY " TERMINAL 10 "
GROUND, CAUSING THE WARNING LIGHT TO LIGHT UP. A BUCKLE SW OFF SIGNAL IS INPUT TO TERMINAL 8 OF
THE RELAY, THE CURRENT FLOWING TO TERMINAL 7 OF THE RELAY FLOWS THROUGH TERMINAL 10 " GROUND
AND THE SEAT BELT WARNING BUZZER SOUNDS FOR APPROX. 4-8 SECONDS. HOWEVER, IF THE SEAT BELT IS
PUT ON DURING THIS PERIOD (WHILE THE BUZZER IS SOUNDING), SIGNAL INPUT TO TERMINAL 8 OF RELAY
STOPS AND THE CURRENT FLOW FROM TERMINAL 7 OF THE RELAY "TERMINAL 10 "GROUND IS CUT,
CAUSING THE BUZZER TO STOP.
2. UNLOCK WARNING SYSTEM
WITH THE IGNITION KEY INSERTED IN THE KEY CYLINDER (UNLOCK SW ON), THE IGNITION SW STILL OFF AND
DRIVER'S DOOR OPENS (DOOR COURTESY SW ON), WHEN A SIGNAL IS INPUT TO TERMINAL 6 OF THE RELAY, THE
INTEGRATION RELAY OPERATES, CURRENT FLOWS FROM TERMINAL 7 OF THE RELAY "TERMINAL 10 "
GROUND AND UNLOCK WARNING BUZZER SOUNDS.
B6 BUCKLE SW LH
1-2 : CLOSED WITH THE DRIVER'S SEAT BELT IN USE
D10 DOOR COURTESY SW LH
3-2 : CLOSED WITH THE LH DOOR OPEN
U1 UNLOCK WARNING SW
2-1 : CLOSED WITH THE IGNITION KEY IN CYLINDER
INTEGRATION RELAY
10-GROUND : ALWAYS CONTINUITY
6-GROUND : CONTINUITY WITH THE DRIVER'S DOOR OPEN
5-GROUND : CONTINUITY WITH THE IGNITION KEY IN CYLINDER
8-GROUND : CONTINUITY WITH THE DRIVER'S SEAT BELT IN USE
9-GROUND :0 VOLTS WITH THE IGNITION SW ON AND BUCKLE SW OFF
1-GROUND : ALWAYS APPROX. 12 VOLTS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
B628T629
D1030U129
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1B20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1C20FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1I
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
()
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
BI40LEFT QUARTER PILLAR
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I738FLOOR NO. 2 WIRE
SYSTEM OUTLINE
SERVICE HINTS

IC2 1
BM1 5
BO1 4IC2 13 IC24
BM1 4BM13
BO1 2BO15 IB21
M 23
IE LLG
L
L
L L L L
LG
LG- R
LG- B
W- B LG- B
LG- R LG- R
LG- B LG- R
LG- B
W- B W- BL
2 1 10 16
32 REAR WIPER AND WASHER SW C14
WASHER MOTOR W 1
TO
FRONT WI PER MOTOR
REAR WIPER MOTOR AND RELAY R15 FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
E 9 : 2JZ- GTE
E21 : 2J Z- GE
20A
WIPER
1H 51A1
1J 11K 12
M
R
L
Y
1LS C1
LM +B SM LM L SM +BREAR WIPER RELAY
REAR WIPER
MOTORLC1
B
WASHER1
OFF
INT
ON
WASHER2 [COMB. SW]
204
REAR WIPER AND WASHER

205
WHEN THE IGNITION SW IS TURNED ON, CURRENT FLOWS TO TERMINAL 2 OF THE WASHER MOTOR, TERMINAL 1
OF THE REAR WIPER MOTOR AND RELAY THROUGH THE WIPER FUSE.
1. REAR WIPER NORMAL OPERATION
WITH THE IGNITION SW TURNED ON AND REAR WIPER AND WASHER SW TURNED ON, THE CURRENT FLOWING TO
TERMINAL 1 OF THE REAR WIPER RELAY FLOWS TO TERMINAL 3 OF THE RELAY "TERMINAL 1 OF THE REAR
WIPER AND WASHER SW "TERMINAL 16 "TO GROUND. THUS, THE RELAY COIL IS ACTIVATED AND THE
CURRENT TO TERMINAL 1 OF THE RELAY FLOWS TO "TERMIANL LH " TERMINAL LH OF THE REAR WIPER
MOTOR "MOTOR "TO GROUND AND CAUSES THE MOTOR TO OPERATE THE WIPER.
2. REAR WIPER INTERMITTENT OPERATION
WHEN THE IGNITION SW IS ON AND THE REAR WIPER AND WASHER SW IS TURNED TO INT POSITION, CURRENT
FLOWING TO TERMINAL 1 OF THE REAR WIPER MOTOR AND RELAY FLOWS TO TERMINAL 2 OF THE RELAY "
TERMINAL 10 OF THE REAR WIPER AND WASHER SW "TERMINAL 16 "GROUND.
THIS CAUSES THE MOTOR TO OPERATE (THE POINT CHANGES) AND THE INTERMITTENT CIRCUIT OF THE RELAY
OPERATES. INTERMITTENT OPERATION OF THE CIRCUIT IS CONTROLLED BY THE CHANGING AND DISCHARGING
OF THE CONDENSER INSTALLED INSIDE THE RELAY.
3. WASHER OPERATION
WITH THE IGNITION SW TURNED ON AND THE REAR WIPER AND WASHER SW TURNED TO ON POSITION, WHEN
THE WIPER SW IS TURNED FURTHER, THE CURRENT FLOWING TO TERMINAL 2 OF THE WASHER MOTOR FLOWS
TO TERMINAL 3 OF THE MOTOR "TERMINAL 2 OF THE REAR WIPER AND WASHER SW "TERMINAL 16 "TO
GROUND, SO THAT THE WASHER MOTOR ROTATES AND THE WINDOW WASHER EJECTS THE SPRAY, ONLY WHILE
THE SWITCH IS FULLY TURNED.
WHEN THE WIPER SW IS OFF AND THEN TURNED TO WASHER ON (WIPER OFF SIDE), ONLY THE WASHER
OPERATES.
W1 WASHER MOTOR
2-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
3-GROUND : CONTINUITY WITH THE WASHER SW TURNED ON
R15 REAR WIPER MOTOR AND RELAY
1-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
2-GROUND : CONTINUITY WITH THE REAR WIPER SW AT INT POSITION
3-GROUND : CONTINUITY WITH THE REAR WIPER SW AT ON POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
C1428W125 (2JZ-GTE)
R1530W127 (2JZ-GE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1A20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
()
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB236ENGINE ROOM MAIN WIRE AND COWL WIRE (LET KICK PANEL)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
BM140BACK DOOR NO. 1 WIRE AND FLOOR NO. 2 WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)
BO140BACK DOOR NO. 2 WIRE AND BACK DOOR NO. 1 WIRE (BACK DOOR UPPER LEFT)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E932ENGINE ROOM MAIN WIREE2134ENGINE ROOM MAIN WIRE
SYSTEM OUTLINE
SERVICE HINTS

25 13
1 2
1 2 44 44
BM1 6IF1 3
IL1 13 BO1 1
IF1 8IC2 5
IL1 16 I 4I 6
IE IH A A BBB W- L
W- B
W- B W- BOO Y
B
B B
L- R L- RBB
L- R
L- R W- B W- B
W- B W- B
FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
REAR WINDOW
D EFOGGE R
RELAY
J 1N 2
NOISE
FILTER
JUNCTI ON
CONNECTOR A/ C AMPLIFIER
MIRROR
HEATER RH
[REMOTE CONTROL
MIRROR RH]
MIRROR
HEATER LH
[REMOTE CONTROL
MIRROR LH] R17
R16
GND RDEFGRA 1
A 18
A 9 A 3B4
R- W
P- B
10 7
H13
REAR WINDOW
DEFOGGER SW
[HEATER CONTROL SW]SW1 SW5A A1 3 , A1 4B
W- B
I14
L- R
TO DIODE
(
IDLE- UP) L- R
10A
GAUGE30A
DEFOG
1H 12 1K73
410A
MIR- HTR
1C 71H41D1
1J 11D 10
1
1B
1
B B- W
NOISE
FI LTERC R18 , R19B
REAR
WINDOW
DEFOGGERN 3 A
NOISE
FILTER
C
208
REAR WINDOW DEFOGGER AND MIRROR HEATER

C R19 4
XX
918OR ANGE
XXA A14
3
X
7X 10 XX
A AAA
AA AA
(
HINT : SEE PAGE 7) J 1
112R16, R17 BORANGE A13H1 3
ORANGE
A N 2, N 3
11 BGREEN R18 XX
209
REAR WINDOW DEFOGGER RELAY
(4) 3- (4) 5 : CLOSED WITH THE IGNITION SW AT ON POSITION AND THE REAR WINDOW SW [HEATER CONTROL SW] ON
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A13B28N 229R18B30
A14A28N 3A30R19C30
H1329R1630
J 129R1730
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
423R/B NO. 4 (LEFT KICK PANEL)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1C20FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1D20FRONT DOOR LH WIRE AND J/B NO. 1 (LEFT KICK PANEL
1H
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
IL138FRONT DOOR RH WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
BM140BACK DOOR NO. 1 WIRE AND FLOOR NO. 2 WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)
BO140BACK DOOR NO. 2 WIRE AND BACK DOOR NO. 1 WIRE (BACK DOOR UPPER LEFT)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
IH36RIGHT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I 438COWL WIREI1438INSTRUMENT PANEL WIRE
I 638FLOOR NO. 2 WIRE
SERVICE HINTS

20A
RAD
NO. 1
2
IB1 8
I 2
I15 I15
IE1 7IE16
M 12
IH A A FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
GR
L- Y
L- Y
GR
P- L
P- L
B- R
B- R
G
IF1 1
L- Y L- Y
GRB-
P- LB- RL- Y L- YL- Y
R
G R
G
W- B W- B
L- Y
(
*1)
L- Y
(
*2)
14587
23 2
(
*1)
(
*1)
(
*2)
(
*2)
(
*1)
(
*2)
(
*1)
(
*2)
A30
A UTO ANTENNA CONTROL RELAY
A33
AUTO ANTENNA MOTORJUNCTION
CONNECTOR J 1 6 1
G
(
*
GR
(
*2)
GR
P- L
B- R
B- R(
*1)
(
*2)
(
*1)
(
*2)
10A
ECU- IG7. 5A
RAD
NO. 2
1E 17 1E10 1H3
RR
R
1)
+B I G AC C AMP ANT GND
UP DOWN-+
210
AUTO ANTENNA