TOYOTA SUPRA 1997 Service Repair Manual

3. CONNECTOR TWIN-LOCK MECHANISM
With this mechanism connectors (male and female
connectors) are locked by two locking devices to increase
connection reliability. If the primary lock is incomplete, ribs
interfere and prevent the secondary lock.
199

152
II1 12 II121 IF12IF111
I14
I14
I 5
15 16 5 8
76 32 109D+ D- P+ P- E1 E2AB TC AB TC
511 12 4
P- B B- Y B
P- B
B- O
GR
BW-R
B- Y (
*1)
P- B (
*1)
B
R B
P- B
B
P- B B
P- B
SRS WARNING
LIGHT
[TELLTALE
LIGHT RH] T 6DATA LINK
CONNE CTOR 1DATA LINK
CONNECTOR 2 D 1 D 5 FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
IE 12
12
A27 A2 8IG2 ACC LA TC
AIRBAG SQUIB
(
STEERING WHEEL
PAD)AIRBAG SQUIB
(
FRONT PASSENGER
AIRBAG ASSEMBLY) AIRBAG SENSOR ASSEMBLY
W- BR
W
L
Y
W- B
W- B
A34
B (
*2)
R (
*2)
*2 : 2JZ- GE *1 : 2JZ- GTE
7. 5A
IGN15A
CIG10A
ECU- B
1G 10 1G61E13
1E3 1E4
1G7 1G9
1G 31G4
1J 1

SPIRAL
CABLE
200
SRS

201
THE SRS IS A DRIVER AND PASSENGER PROTECTION DEVICE WHICH HAS A SUPPLEMENTAL ROLE TO THE SEAT
BELTS.
WHEN THE IGNITION SW IS TURNED TO ACC OR ON, THE CURRENT FROM THE CIG FUSE FLOWS TO TERMINAL 16
OF THE AIRBAG SENSOR ASSEMBLY. ONLY WHEN THE IGNITION SW IS ON DOES THE CURRENT FROM THE IGN
FUSE FLOW TO TERMINAL 15 OF THE AIRBAG SENSOR ASSEMBLY.
IF AN ACCIDENT OCCURS WHILE DRIVING, DECELERATION CAUSED BY A FRONTAL IMPACT IS DETECTED BY THE
SENSOR IN THE AIRBAG SENSOR ASSEMBLY, AND WHEN THE FRONTAL IMPACT EXCEEDS A SET LEVEL (WHEN
THE SAFING SENSOR BUILT INTO THE AIRBAG SENSOR ASSEMBLY IS ON, THE FLOOR SENSOR BUILT INTO THE
AIRBAG SENSOR ASSEMBLY IS ON AND THE AIRBAG SENSOR ASSEMBLY IS ON), THE CURRENT FROM THE CIG OR
THE IGN FUSE FLOWS THROUGH THE AIRBAG SENSOR ASSEMBLY TO TERMINALS 7 AND 3 OF THE AIRBAG
SENSOR ASSEMBLY TO TERMINAL 1 OF THE AIRBAG SQUIB " TERMINAL 2 "TERMINALS 6 AND 2 OF THE
AIRBAG SENSOR ASSEMBLY "THE FLOOR SENSOR BUILT INTO THE AIRBAG SENSOR ASSEMBLY "TERMINAL 9,
TERMINAL 10 OR BODY GROUND "GROUND. WHEN THE SAFING SENSOR BUILT INTO THE AIRBAG SENSOR
ASSEMBLY IS ON, AND FLOOR SENSOR BUILT INTO THE AIRBAG SENSOR ASSEMBLY IS ON, ONE OF THE
ABOVE-MENTIONED CIRCUITS IS ACTIVATED SO THAT THE CURRENT FLOWS TO THE AIRBAG SQUIBS, CAUSING
IT TO OPERATE.
THE AIRBAG STORED INSIDE THE STEERING WHEEL PAD IS INSTANTANEOUSLY EXPANDED TO SOFTEN THE
SHOCK TO A DRIVER.
SIMULTANEOUSLY, THE AIRBAG STORED INSIDE THE PASSENGER'S INSTRUMENT PANEL IS INSTANTANEOUSLY
EXPANDED TO SOFTEN THE SHOCK TO A PASSENGER.
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A2728D124 (2JZ-GTE)T629
A2828D126 (2JZ-GE)
A3428D528
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1G20COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)1J20COWL 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)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IE36LEFT KICK PANEL
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
I538INSTRUMENT PANEL WIREI1438INSTRUMENT WIRE
SYSTEM OUTLINE

202
SRS
12 12X5X
XX X11
XXX
4 X12X X X2
XX15X A27 A28 C 5 D 1
D 5 T 6 YELLOW YELLOW YELLOW BLACK
DARK GRA YX
X XX X
X
XX
XX XX
AB8 X2 3X 56 7
910 X X X X 1516

1 1
IG BI2 21 1 FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
TENSION REDUCER
SOLENOID RH TENSION REDUCER
SOLENOID LH
BUCKLE S W
RHT1 2 T11
B 7
B- R
B- R B- W
B- W W- B
W- B
(
2JZ- GTE)
B- R
(
2JZ- GE)
1C 610A
ECU- IG
1I 91K13
2 2BU CKLE SW
LH B 6
206
ELECTRIC TENSION REDUCER

207
B6 BUCKLE SW LH
1-2 : CLOSED WITH THE DRIVER'S SEAT BELT IN USE
B7 BUCKLE SW RH
1-2 : CLOSED WITH THE FRONT PASSENGER'S SEAT BELT IN USE
T11, T12 TENSION REDUCER SOLENOID LH, RH
1-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
B628T1130
B728T1230
: 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)
1I20COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)1K20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
IG36RIGHT KICK PANEL
BI40LEFT QUARTER PILLAR
12 12 12 12B 6 B 7 T11 T12
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

B 8A 8
B 9A 1
B 3A 3
B 4A 4B 10B3 B9 B1 A6 A3
I16 IH1 8IH19
IF IF3 11A 4 GR
L- Y
L- Y
GR
P- L
P- L
B- R
B- R(
*1)
(
*1)
(
*2)
(
*2)
(
*1)
(
*2)
(
*1)
(
*2)
B- R
B- R
P- L
P- L
GR
V
L- Y
LGP- L
P- L
BR
GR
(
*1)
L- Y
(
*1)
P- L
(
*1)
V
(
*1)
LG
(
*1) (
SHI ELDED)
(
SHIELDED)
(
*2)
(
*1)
(
*2)
(
*1)
(
*2)
(
*1)
(
*2)
(
*1)(
*1)
(
*1)
ACC
+B1
AMP+
OUT
OUT
GND
(
*1)
(
*2)GND
BR
STER EO POWER
AMPLIFIER
RADIO AND PLAYERB S 8 , S 9A
A R 4 , R 6B ANT AMP ACC B
211
* 2 : W/O STEREO POWER AMPLIFIER * 1 : W/ STEREO POWER AMPLIFIER