1997 TOYOTA SUPRA relay

224
COMBINATION METER
B2 BRAKE FLUID LEVEL WARNING SW
1-2 : CLOSED WITH THE FLOAT DOWN
P5 PARKING BRAKE SW
1-GROUND : CLOSED WITH THE PARKING BRAKE LEVER PULLED UP
O2 OIL PRESSURE SW
1-GROUND : CLOSED WITH THE OIL PRESSURE ABOVE APPROX. 20 KPA (2.8 PSI, 0.2 KG/CM
2)
E4 ENGINE COOLANT TEMP. SENDER
1-GROUND : APPROX. 160-240 W (50
C, 122
F)
APPROX. 17.1-20.4 W (120
C, 288
F)
E7 ENGINE OIL LEVEL SENSOR
1-2 : CLOSED WITH THE FLOAT UP AND THE ENGINE OIL TEMP. AT BELOW APPROX. 55
C (131
F)
OPEN WITH THE FLOAT DOWN AND THE ENGINE OIL TEMP. AT BELOW APPOX. 60
C (140
F)
F14 FUEL SENDER
1-2 : APPROX. 3 W AT FUEL FULL
APPROX. 110 W AT FUEL EMPTY
C10 (B), C12 (A) COMBINATION METER
(B) 9-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ON POSITION
(A) 16-GROUND : APPROX. 12 VOLTS WITH THE IGNITION SW AT ST POSITION AND THE SHIFT LEVER AT P OR N
POSITION (A/T)
12 VOLTS WITH THE IGNITION SW AT ST POSITION AND THE CLUTCH PEDAL DEPRESSED
(M/T)
(A) 8-GROUND : ALWAYS CONTINUITY
(A) 11-GROUND : ALWAYS CONTINUITY
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A1328E724 (2JZ-GTE)O227 (2JZ-GE)
B224 (2JZ-GTE)E726 (2JZ-GE)P225 (2JZ-GTE)B226 (2JZ-GE)E1029P227 (2JZ-GE)
C928F1430P429
C10B28G224 (2JZ-GTE)P529
C11C28G226 (2JZ-GE)T529
C12A28I427T629
D628J129T1329
E424 (2JZ-GTE)L230V1025 (2JZ-GTE)E426 (2JZ-GE)O225 (2JZ-GTE)V1027 (2JZ-GE)
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
423R/B NO. 4 (LEFT KICK PANEL)
: 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)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1G
1H
1I20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1J
()
1K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB136ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)IB236ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IE136INSTRUMENT PANEL WIRE AND FLOOR NO. 2 WIRE (LEFT KICK PANEL)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)IF236INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
IF336INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IJ238ENGINE WIRE COWL WIRE (RIGHT KICK PANEL)
BP140FUEL GAUGE WIRE AND FLOOR NO. 2 WIRE (LUGGAGE ROOM FRONT LH)
SERVICE HINTS

228
RADIATOR FAN AND AUTOMATIC
1. HEATER BLOWER OPERATION
MANUAL BLOWER OPERATION
WHEN THE BLOWER CONTROL SW IS SET TO ANY BLOWER SPEEDS, THE A/C AMPLIFIER OPERATES AND THE
CURRENT TO DRIVE THE BLOWER MOTOR FLOWS FROM TERMINAL BLW OF THE A/C AMPLIFIER TO TERMINAL SI
OF THE BLOWER MOTOR CONTROL RELAY. THE CURRENT ACTIVATES THE RELAY AND THE VOLTAGE APPLIED TO
TERMINAL +B OF THE BLOWER MOTOR CONTROL RELAY IS OUTPUT AT TERMINAL M+ AS THE VOLTAGE FOR THE
SELECTED BLOWER SPEED. THE CURRENT THEN FLOWS FROM TERMINAL M+ OF THE BLOWER MOTOR
CONTROL RELAY TO TERMINAL 2  TERMINAL 1 TERMINAL M- OF THE BLOWER MOTOR CONTROL RELAY 
TERMINAL GND GROUND, AND THE BLOWER MOTOR OPERATES AT THE BLOWER SPEED SELECTED.
AUTO FUNCTION
WHEN THE AUTO SW IS TURNED ON, THE A/C AMPLIFIER CALCULATES THE REQUIRED VENT TEMPERATURE BASE
ON THE SET TEMPERATURE AND INPUT FROM EACH SENSOR. THEN TERMINAL BLW OF THE A/C AMPLIFIER
INPUTS CURRENT TO TERMINAL SI OF THE BLOWER MOTOR CONTROL RELAY IN CONFORMITY WITH THE
REQUIRED VENT OUTPUT. THIS CURRENT ACTIVATES THE BLOWER MOTOR CONTROL RELAY SO THAT CURRENT
FLOWS FROM TERMINAL M+ OF THE BLOWER MOTOR CONTROL RELAY TERMINAL 2 OF THE BLOWER MOTOR
TERMINAL 1 TERMINAL M- OF THE BLOWER MOTOR CONTROL RELAY TERMINAL GND GROUND,
ACTIVATING THE BLOWER MOTOR. THE BLOWER MOTOR THEN OPERATES AT DIFFERENT STEPS IN CONFORMITY
WITH VARIABLE CURRENT FLOW OUTPUT FROM TERMINAL BLW OF THE A/C AMPLIFIER TO TERMINAL SI OF HE
BLOWER MOTOR CONTROL RELAY.
2. OPERATION OF AIR INLET CONTROL SERVO MOTOR
(SWITCHING FROM FRESH TO RECIRC)
WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS FROM HTR FUSE TO TERMINAL 2 OF THE AIR INLET
CONTROL SERVO MOTOR TERMINAL 5 TERMINAL AIR OF THE A/C AMPLIFIER TERMINAL GND 
GROUND, THE MOTOR ROTATES AND THE DAMPER STOPS AT RECIRC POSITION.
(SWITCHING FROM RECIRC TO FRESH)
WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS FROM HTR FUSE TO TERMINAL 2 OF THE AIR INLET
CONTROL SERVO MOTOR TERMINAL 3 TERMINAL AIF OF THE A/C AMPLIFIER TERMINAL GND 
GROUND, THE MOTOR ROTATES AND THE DAMPER STOPS AT FRESH POSITION.
3. OPERATION OF AIR VENT MODE CONTROL SERVO MOTOR
WITH THE IGNITION SW TURNED ON, THE CURRENT FLOWS FROM HTR FUSE TO TERMINAL IG OF THE A/C
AMPLIFIER
(SWITCHING FROM DEF TO FACE)
THE CURRENT FROM TERMINAL AOF OF THE A/C AMPLIFIER TERMINAL 1 OF THE AIR VENT MODE CONTROL
SERVO MOTOR TERMINAL 2 TERMINAL AOD OF THE A/C AMPLIFIER TERMINAL GND GROUND. THE
MOTOR ROTATES AND THE DAMPER MOVES TO FACE SIDE. WHEN THE DAMPER OPERATES WITH THE A/C SW AT
FACE POSITION, THE DAMPER POSITION SIGNAL IS INPUT FROM TERMINAL 3 OF THE SERVO MOTOR TO THE
TERMINAL TP0 OF THE A/C AMPLIFIER. AS A RESULT, CURRENT TO THE SERVO MOTOR CIRCUIT IS CUT OFF BY
THE AMPLIFIER, SO THE DAMPER STOPS AT THAT POSITION.
(SWITCHING FROM FACE TO DEF)
THE CURRENT FLOWS FROM TERMINAL AOD OF THE A/C AMPLIFIER TERMINAL 2 OF THE AIR VENT MODE
CONTROL SERVO MOTOR TERMINAL 1 TERMINAL AOF OF THA A/C AMPLIFIER TERMINAL GND 
GROUND, THE MOTOR ROTATES AND THE DAMPER STOPS AT THAT POSITION.
4. OPERATION OF AIR MIX CONTROL SERVO MOTOR
WHEN THE TEMPERATURE SW IS TURNED TO THE COOLº SIDE, THE CURRENT FLOWS FROM TERMINAL AMC OF
THE A/C AMPLIFIER TERMINAL 1 OF THE AIR MIX CONTROL SERVO MOTOR MOTOR TERMINAL 2 
TERMINAL AMH OF THE A/C AMPLIFIER TERMINAL GND GROUND AND THE MOTOR ROTATES. THE
DAMPER OPENING ANGLE AT THIS TIME IS INPUT FROM TERMINAL 3 OF SERVO MOTOR TO TERMINAL TP OF THE
A/C CONTROL ASSEMBLY, THIS IS USED TO DETERMINE THE DAMPER STOP POSITION AND MAINTAIN THE SET
TEMPERATURE.
WHEN THE TEMPERATURE CONTROL SW IS TURNED TO THE WARMº SIDE, THE CURRENT FLOWS FROM
TERMINAL AMH OF THE A/C AMPLIFIER TERMINAL 2 OF THE AIR MIX CONTROL SERVO MOTOR MOTOR 
TERMINAL 1 TERMINAL AMC OF THE A/C AMPLIFIER, ROTATING THE MOTOR IN REVERSE AND SWITCHING
THE DAMPER FROM COOL TO WARM SIDE.
SYSTEM OUTLINE

229
AIR CONDITIONING
5. AIR CONDITIONING OPERATION
THE A/C AMPLIFIER RECEIVES VARIOUS SIGNALS, I.E., THE ENGINE RPM FROM THE IGNITER, OUTLET
TEMPERATURE SIGNAL FROM THE A/C THERMISTOR, COOLANT TEMPERATURE FROM THE ENGINE COOLANT
TEMP. SENSOR AND THE LOCK SIGNAL FROM THE A/C COMPRESSOR, ETC.
WHEN THE ENGINE IS STARTED AND THE A/C SW (HEATER CONTROL SW) IS ON, A SIGNAL IS INPUT TO THE A/C
AMPLIFIER. AS A RESULT, THE GROUND CIRCUIT IN A/C AMPLIFIER IS CLOSED AND CURRENT FLOWS FROM HTR
FUSE TO TERMINAL 1 OF THE A/C MAGNETIC CLUTCH RELAY  TERMINAL 2 TERMINAL ACMG OF THE ENGINE
CONTROL MODULE TERMINAL A/C TERMINAL MGC OF THE A/C AMPLIFIER TERMINAL GND 
GROUND, TURNING THE RELAY ON, SO THAT THE A/C MAGNETIC CLUTCH IS ON AND THE A/C AMPLIFIER
OPERATES.
AT THE SAME TIME, THE ENGINE CONTROL MODULE DETECTS THE MAGNETIC CLUTCH IS ON AND THE A/C
AMPLIFIER IS OPERATING AND OPENS DIRECTION TO AVOID LOWERING THE ENGINE RPM DURING A/C
OPERATING.
WHEN ANY OF THE FOLLOWING SIGNALS ARE INPUT TO THE A/C AMPLIFIER, THE A/C AMPLIFIER OPERATES TO
TURN OFF THE AIR CONDITIONING.
*ENGINE RPM SIGNAL IS HIGH.
*COOLANT TEMP. SIGNAL IS HIGH.
*A SIGNAL THAT THE TEMPERATURE AT THE AIR OUTLET IS LOW.
*A SIGNAL THAT THERE IS A LARGE DIFFERENCE BETWEEN ENGINE SPEED AND COMPRESSOR SPEED.
*A SIGNAL THAT THE REFRIGERANT PRESSURE IS ABNORMALLY HIGH OR LOW.

E 9
E 9
E 2 22
22 22265 12
3
52 31
23 41531 42
22 22
1 2 4
21 IK1 3IK12EA1 1
IK1 1 IB4 1
IF15
IF313 IB23
EB IGA 2A3
B 2B1A1 FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
R- L
R- L
R- L
R- L
R- LR- L
W- G
L- W
L
L
II1 10
LL L- W
L L- W
L
R- L B
R- L R- L L- R
L- W W- B
L- R L- R
L B
BR
W- B W- B
L
R- L
L- BL W- B
W- BW- BL- R W- R LL
W- G
R- L 22 11
(
*1) (
*1)
(
*1)
50A
HTR30A
FAN
RADIATOR FAN
RELAY NO. 2
RADIATOR FAN
RELAY NO. 1
HEATER
RELAY
A/C MAGNETIC
CLUTCH RELAY
A/C SINGLE
PRESSURE SW A/C MAGNETIC
CLUTCH A 4
ENGINE COOLANT
TEMP. SW E 5
B 3
BLOWER MOTOR +B SI
M+ M- GNDBLOWER MOTOR
CONTROL RELAYB B 4 , B 5AE 9 : * 1
E21 : * 2
E11 : * 1
E26 : * 2R 2
R 3
A 3
A 2
A 3 A
EA E 5
W- B
L- B
W- B W- B W- B
7. 5A
HTR
1A 51K2
M
230
RADIATOR FAN AND AUTOMATIC

44 52 3144I14 I14
I14
IG 1 8IG19IG12IF18IF36II1 8II123
A 18 A3A1B7C20 B18 A11 A14II12
IB6 12
EA V- WY Y
Y
L- R L- R
L- Y
W- R
L- R
Y
Y
Y
Y R
Y L- R Y BR- W
G- W
V- W
V
R- Y G- W
V
R- Y G- W
V
R- Y
W- R
L- R
O
P
L- Y L- YP
L- R
W- B
4352 1
65 3 121
W- L B
TP AMH AMC +B ACC RDEFGR SPEED PSW AIR MIX CONTROL
SERVO MOTOR
SPEEDOMETER
[COMB. METER]
A25
TELLTALE LIGHT RH T 6
VEHICLE SPEED SENSOR NO. 1
(
COMBINATION METER) V10 A/C DUAL PRESSURE SW
ODO AND
TRIP
A/ C AMPLI FIERA A12 , A13C
O
REAR WINDOW
DEFOGGER RELAY
IF A 9
A 11 B11A 10
A 4
B 1B 2A 1
(
*1) (
*1)
(
*2)
(
*2)
B A 3 , AB C10 , C12A
B , A14
BRBR
R
10A
ECU- B15A
CIG10A
GAUGE
1E 13 1E21H121E12 FROM POWER SOURCE SYSTEM (
SEE PAGE 56)
M
WARM
COOL
235
AIR CONDITIONING* 1 : 2JZ- GTE
* 2 : 2JZ- GE

236
RADIATOR FAN AND AUTOMATIC
A4 A/C MAGNETIC CLUTCH
4-GROUND : APPROX. 3.7 W
A3 (A) A/C DUAL PRESSURE SW [A/C TRIPLE PRESSURE SW] (2JZ-GTE)
(A)1 -(A) 4 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/CM
2) OR 3140 KPA (458 PSI, 32 KG/CM2)
A3 (B) A/C DUAL PRESSURE SW (2JZ-GE)
(B)1- (B)2 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/CM
2) OR 3140 KPA (458 PSI, 32 KG/CM2)
A12 (C), A13 (A), A14 (B) A/C AMPLIFIER
+B-GROUND : ALWAYS APPROX. 10-14 VOLTS
IG-GROUND : APPROX. 10-14 VOLTS WITH THE IGNITION SW AT ON POSITION
HR-GROUND : APPROX. 10-14 VOLTS WITH THE IGNITION SW AT ON POSITION AND DO NOT TURN THE BLOWER
MOTOR BELOW 1 VOLT WITH THE IGNITION SW AT ON POSITION AND TURN THE BLOWER MOTOR
ACC-GROUND : APPROX. 10-14 VOLTS WITH THE IGNITION SW AT ACC OR ON POSITION
TW-GROUND :10-14 VOLTS AT START THE ENGINE AND MAX. COLD POSITION OF THE A/C TEMP. CONTROL SW
BELOW 1 VOLT AT START THE ENGINE AND MAX. WARM POSITION OF THE A/C TEMP. CONTROL SW
MGC-GROUND :BELOW 1 VOLT AT START THE ENGINE, PUSH THE A/C AUTO SW AND THE A/C SW ON POSITION
10-14 VOLTS AT START THE ENGINE, PUSH THE A/C AUTO SW AND THE A/C SW OFF POSITION
BLW-GROUND :1.0-3.0 VOLTS WITH THE IGNITION SW ON AND TURN THE BLOWER MOTOR
S5-GROUND :4-6 VOLTS WITH THE IGNITION SW ON
SG-GROUND : ALWAYS CONTINUITY
AMH-AMC :13-19 VOLTS WITH THE IGNITION SW OFF
AOF-GROUND : APPROX. 12 VOLTS WITH THE FACE SW ON
AOD-GROUND : APPROX. 12 VOLTS WITH THE DEF SW ON
GND-GROUND : ALWAYS CONTINUITY
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A124 (2JZ-GTE)A1728H12A29A126 (2JZ-GE)A2428H13B29
A224A2528I427
A3A24 (2JZ-GTE)A2628J129A3B26 (2JZ-GE)B328R125
A424 (2JZ-GTE)B4A28R225A426 (2JZ-GE)B5B28R325
A12C28C10A28R2025
A13A28C12B28T629
A14B28E524V1025 (2JZ-GTE)
A1528E1029V1027 (2JZ-GE)
A1628E1129
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT)
423R/B NO. 4 (LEFT KICK PANEL)
: 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)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1(LEFT KICK PANEL)
1H20COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)1K20COWL 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)
EA132 (2JZ-GTE)ENGINE WIRE AND ENGINE ROOM MAIN WIRE (NEAR THE R/B NO 2)EA134 (2JZ-GE)ENGINE WIRE AND ENGINE ROOM MAIN WIRE (NEAR THE R/B NO. 2)
IB236ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IB436ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)IB636ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)
IF136INSTRUMENT PANEL WIRE AND COWL WIRE (INSTRUMENT PANEL REINFORCEMENT LH)
IF336INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)
IG138INSTRUMENT PANEL WIRE AND COWL NO. 3 WIRE (BEHIND HEATER CONTROL SW)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IK138COWL NO. 4 WIRE AND COWL WIRE (RIGHT KICK PANEL)
SERVICE HINTS

1
234
3 SUPRA(
Cont. next page)
2ACC
IG1
ST2IG2 AM1 4
8 6 7AM2
2 1
5 3 5
2 1
2
2 1J 4
22 2 2
224 EA18 EA15EA2
11 IC2 12 IC2
2BP15 4
M 6BP1 9IJ1
4IB1
4IJ1
5IJ1 IC 210
IF17
EA22 1B 4
22 2 2
ED IG 1 2
1 2
1 2
1 2
1 2
1 2
Ri ght kick
p anel Rear side of
int ake manifold
12 0A ALT30A EFI NO. 2
30A AM2
50A AM1(
USA)
60A AM1(
Canada)
15 II113 II1 13 IJ2 1J 51J31J6
1E 12
IJ118
ED Re a r s i de of
intake manif old
10A GAUGE7. 5A IGN7. 5 A ST
B- W
B- RL
W- B
B- RO LG- RR LG- B
L- B
BRL- B
B- R W- B8562
16 23 16
12 1
10 134 14
8
3
G
V- W
LW-BV- WGY
B- R
L- RG
V- W
L
B- R B- R
B- W
B- Y
GR
B- R
B- Y
B- Y
B- Y
L
W- R W- R
W
WB- YB- W B- W B- R
B- O
B- WW- B
3EFI NO. 2 RELAYEFI MAIN RELAY
(
Sh ort Pin) EFPCDIFP
TS
WB
F14
FUEL P UMP
D 5
DATA LI NK
CONN EC TO R 2
D 1
DATA LINK
CONN ECTOR 1T o AB S So le n o i d
Relay< 1 9- 2>
ABA/D OPA TC AB S
Fr om Engine
Con tr ol Module
<15- 5>F rom Cr uis e
Contro l ECU
< 17- 2> From Tra ck Off
Indicato r L igh t
[Telltale Light LH]
<20->1>
W
E1 I1 9
IG NI TI O N SW
F1 5
FU EL PU MP ECU+B
234872
1
L BRR G B- YWR-B
R
R- W
R- G
R- Y
R- L
W- B
W- B
W- B
B#10 #20 #30 #40 #50SDL
S 1
S FI RESI STORI12
INJECTOR NO. 1 I13
INJECTOR NO. 2 I14
INJECTOR NO. 3 I15
INJECTOR NO. 4 I16
INJECTOR NO. 5 I17
INJECTOR NO. 6
BA TTERY+B3 2
BR BR
BR L- B B- O
BT 5
MAL FU NCTION
INDI CA TO R LAMP

3 TE 1 BAT
G R- L R- Y R- G R- WR R- B
B- R V- WG L- BBR
BR L- B
BR
From AB S E CU
< 19- 2>
E1 1
1 111 2
222 21E 81K4 14 IC2
2A 1
P- B11TC
From AB S E CU
< 19- 2>
B- RY
B- W
2 2W
Engine Control(
2JZ- GTE)
Power Source
A
B
C
D
E
G
I
K
M
O
Q
S H
J
L
N
P
R 22
LWA
30A EFI NO. 1
I 7. 5A OBD- I
B- W
14 1C
BILef t quar ter pillar Fr ont si de of
left fenderEB IB1 5
B- W
Left kick
pa nel IEB- R V- WG W- BG
W- B
BR W- B
BR
IJ1 12
6 #605SG
4CG
8 5
AB D1 7
DA TA LINK
CO NNEC TOR 3
From Ai rba g
Sen sor Assembly
<13- 3>
9
ECT
+B 12 B
B- YVF
BRBRL B- O B- W(
A/T) B- R
B- Y
GR
B- W
* En gine Con tro l Mo du le For the connectors of the parts lis ted below. see the next page.
B- Y B- WB- R
B- R
To Throttle ECU
<20- 3>
From Airbag Sensor
Assembly <13-3>
From ABS ECU
<19-2>
From Throttle ECU
<20-2>
From Cruise
Control ECU
<17-1>
From ABS ECU
<19-2>
From ABS ECU <19-2>
From Throttle ECU
<20-2>
From Cruise Control
ECU <17-2>
From Airbag Sensor
Assembly <13-3>
K OVERALL ELECTRICAL WIRING DIAGRAM

5
678
3 SUPRA(
Cont' d)
2 1
2 1
2 1
2 1
2 1
BBA B B B B BABAABB BB B
B B AAABBBBBBBA BBBB BBBBBBBB A B12
12
12
4IJ214 IJ2 5 IJ2A
10 I C19IC1 12IC1
IC14
IC18
2 1
2 1 AAAAAAB ABB B
BA BBB BB B BB
121212
1
1
ED Rear side of
int ake
manifold 52 47 72 621225756555453525831 35333432 7574151617181920 11 50 492 1
42
48 71 202 40 39 38 7 3 6 0 17624 3344 24 46 63 4 2 31
23 2 6 6 25 27 7 69 80 7943 2 5 3 2 1 2 3 4 31
4
1
A
A 3 1 6 427 26 14 1 3 40 3 9 51 3845 6 6 2 8 BRL B- O B- R
B- W(
A/T) B- YB- R B- R B - R B- R B- R
W- B W- B
W B- L B- RLP
G- B G- Y
G- R
W- L B- R
B- R B- R
B- R B- R L- W
B- O B- W(
A/ T) GRB- Y W- B W- BL- Y O(
A/T) BR- Y GR- RY- L
GR- R
R- L R - LBR- W BR- WL- BG V- W R- W W- RLG B- RL R R- Y B- R V- Y G- O G- WR- GP V R- BR R- WR- GR- YR- L Y- RW W
B- R
OXS HTS W DI FP CIGT1
IGT2IG T3
IGT4IGT5
IGT6IGF
+BISC1
ISC3ISC2
IS C4 EGREVA P
# 6 0 # 50 # 4 0 # 30 # 2 0 # 10 AB S KNK1 KNK2W- B
B- R B- R
V 7
VSV(
Intake Air Control Valve) V 4
VSV(
Exhaust Bypass Valve)
V 5
V SV(Ex haust Gas Co nt rol V alve)V 6
VSV(
Fue l P res sure Up)
A 5
A /T FLUID
TEMP. SENSOR E 1
EGR GAS TEMP. SENSOR
E 3
ENGI NE COO LANT
TEMP . S ENSOR
V 8
VSV(
Waste Gate Valve)Fr om AB S ECU
< 19- 1>
From
Odo and
Trip Meter
[Telltale
Li ght RH]
<26-1> OX HT
(
SHIEL DE D) (SHI ELDED)
H 5
HEA TED OX YGE N
SE NSOR
(
BANK 1
SENSOR 1)
E+B
OX 1 HT1
TE1SP1 V SV1 VS V2 VSV 3 FP U V SV 4 IGSW
NS WM- RE L
BATTTHW OIL THG
IDL2VTA2
(
SHIELDED)
G R- L R- Y R- G R- WR R- B
B- R V- WG L- BBRBR
BR B- R 1
32
4
R- L BR- WV B- RW
(SHIE LDE D)V 2
VSV(
EGR)
V 3
VSV(
EVAP)
HT
OX+B
E1 H1 1
HE ATED OXY GEN SENSOR
(
BA NK 1 S EN SOR 2)
I 1
IDL E AI R C ONTROL VA LVE
Fro m Igniter
<2- 2><2- 3>
L- R
L- R
W- B W- B
W- B B- RP- L Y- RBR
P- L
W- L
G- O
V- Y
BR
Y
W
B RW- G
WO B- WL B- RBRBR BR BR
W- BR GR- RL- R L- RW- B W- B
BR
(
SHIELDED)
(
SHI EL DED)
AC M G G 1 G- G2 NE NE- E 1 EO 1 EO2E2 THA VG E2G PIM VC
EFI+EFI-
ETC +ETC-
VT01VT0 2
FAIL NE OTHA VG E2 G E2
+B
From A/ C
Magnet ic
Clutch
Relay
< 27- 2>
To Thrott le ECU
< 20- 3> To Cruise Cont rol
ECU< 1 7- 3>
To Throttle ECU
<20- 3>
T14
TU RBO P RES SURE
SENSOR
S 5
S UB THROT TLE
POSITION
SENSORT 2
THROTTL E
POS IT ION
SENS ORM 1
MASS AIR
FLOW METER
From
Stop Li gh t
SW< 7 - 4> To Tachometer
[Comb. Meter]
< 26- 6>
Fro m
Dio de
(Idle- Up)
<21- 3>
A
A
AAA A A
BR
(
SHIELDED)(
SH IE LDE D) (
SHIELDED)
OL B- R
B- W
WC 3
CRA NKS HAFT
POS ITION SENS OR
C 2
CAMS HAFT
POSI TION
SEN SO R NO. 2 J 2
J UNCTION
C ONNE CTOR
K 2
KNOCK SENSOR
(
on Re ar Side)
K 1
KNOCK SENSOR
(
o n Front Side)C 1
C AMSH AFT POSITION
S ENS OR NO. 1
BR
B- R
E NGINE CONTRO L MO DULE E 9 B , E10 A GR
B- R B - R
(
A/T)
Engine Control(
2JZ- G TE)
A
B
C
D
E
G
I
K
M
O
Q
SH
J
L
N
P
R F
TA CO IDL1STP E2 VTA 1
VCC PM1 ELSA ABBBBBA 15 1 6 62 4 1 43 64 65 4
G- W
W- B
R
Y
L- R
B- Y
B- W
R- Y
EF I FB 67P
Fr om Th rott le ECU
<20- 3><20- 4>
IJ120
B- R
B- R
6IJ1 A SDL
8
7IJ1B
78E03
BR
GG
(
SHIELDED)
(
SHIE LDED) A
34L- RA/CFr om A/C
Amplifier
< 27- 5>
B
77BSTA * Engine Con tro l Module For th e co nnector s of the parts lis ted below. see t he n ext pa ge.
W- B
(
Cont. next page)
From Park/Neutral
Position SW (A/T)
<1-3>
From Clutch Start
SW (M/T) <1-3>
K