1986 TOYOTA SUPRA ignition

228
RADIATOR FAN AND AUTOMATIC AIR CONDITIONING
1. HEATER BLOWER OPERATION
MANNAL 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 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 BASED 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 BLOWER MOTOR " TERMINAL 1 " TERMINAL M± OF 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 THE BLOWER MOTOR
CONTROL RELAY.
2. OPERATION OF AIR INLET CONTROL SERVO MOTOR
(SWITCHING FROM FRESH TO RECIRC)
WITH IGNITION SW TURNED ON, THE CURRENT FLOWS FROM HTR FUSE TO TERMINAL 2 OF AIR INLET CONTROL SERVO MOTOR
" TERMINAL 5 " TERMINAL AIR OF A/C AMPLIFIER " TERMINAL GND " GROUND, THE MOTOR ROTATES AND THE DAMPER
STOPS AT RECIRC POSITION.
(SWITCH(NG FROM RECIRC TO FRESH)
WITH IGNITION SW TURNED ON, THE CURRENT FLOWS FROM HTR FUSE TO TERMINAL 2 OF AIR INLET CONTROL SERVO MOTOR
" TERMINAL 3 " TERMINAL AIF OF 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 IGNITION SW TURNED ON, THE CURRENT FLOWS FROM HTR FUSE TO TERMINAL IG OF A/C AMPLIFIER
(SWITCHING FROM DEF TO FACE)
THE CURRENT FROM TERMINAL AOF OF A/C AMPLIFIER " TERMINAL 1 OF AIR VENT MODE CONTROL SERVO MOTOR "
TERMINAL 2 " TERMINAL AOD OF 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 TPO 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 A/C AMPLIFIER " TERMINAL 2 OF AIR VENT MODE CONTROL SERVO MOTOR "
TERMINAL 1 " TERMINAL AOF OF 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 ªCOOLº SIDE, THE CURRENT FLOWS FROM TERMINAL AMC OF A/C AMPLIFIER
" TERMINAL 1 OF AIR MIX CONTROL SERVO MOTOR " MOTOR " TERMINAL 2 " TERMINAL AMH OF 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 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 ªWARMº SIDE, THE CURRENT FLOWS FROM TERMINAL AMH OF A/C
AMPLIFIER " TERMINAL 2 OF AIR MIX CONTROL SERVO MOTOR " MOTOR " TERMINAL 1 " TERMINAL AM1 OF A/C AMPLIFIER,
ROTATING THE MOTOR IN REVERSE AND SWITCHING THE DAMPER FROM COOL TO WARM SIDE.
SYSTEM OUTLINE

236
RADIATOR FAN AND AUTOMATIC AIR CONDITIONING
A 4 A/C MAGNETIC CLUTCH4 ± GROUND: APPROX. 3.7

A 3(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/CM2) OR 3140 KPA (458 PSI, 32 KG/CM2)
A 3(B) A/C DUAL PRESSURE SW (2JZ±GE)(B) 1±(B) 2 : OPEN ABOVE APPROX. 225 KPA (33 PSI, 2.3 KG/CM2) 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 IGNITION SW AT ON POSITION
HR ± GROUND: APPROX. 10±14 VOLTS WITH IGNITION SW AT ON POSITION AND DO NOT TURN THE BLOWER MOTOR
BELOW 1 VOLTS WITH IGNITION SW AT ON POSITION AND TURN THE BLOWER MOTOR
ACC ± GROUND: APPROX. 10±14 VOLTS WITH IGNITION SW AT ACC OR ON POSITION
TW ± GROUND:10±14 VOLTS AT START THE ENGINE AND MAX. COLD POSITION OF A/C TEMP. CONTROL SW
BELOW 1 VOLTS AT START THE ENGINE AND MAX. WARM POSITION OF A/C TEMP. CONTROL SW
MGC ± GROUND: BELOW 1 VOLTS AT START THE ENGINE, PUSH THE A/C AUTO SW AND A/C SW ON POSITION
10±14 VOLTS AT START THE ENGINE, PUSH THE A/C AUTO SW AND 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 CONTINUOUS
AMH ± AMC13±19 VOLTS WITH IGNITION SW OFF
AOF ± GROUND: APPROX. 12 VOLTS WITH FACE SW ON
AOD ± GROUND: APPROX. 12 VOLTS WITH DEF SW ON
GND ± GROUND: ALWAYS CONTINUOUS
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
A124 (2JZ±GTE)A1728H12A29A 126 (2JZ±GE)A2428H13B29
A 224A2528I 427
A3A24 (2JZ±GTE)A2628J 129A 3B26 (2JZ±GE)B 328R 125
A424 (2JZ±GTE)B 4A28R 225A 426 (2JZ±GE)B 5B28R 325
A12C28C10A28T 629
A13A28C12B28V1025 (2JZ±GTE)
A14B28E 524V1027 (2JZ±GE)
A1528E1029
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

Remote Control MirrorSeat Heater (for Canada)SRS (Supplemental
Restraint System)Shift LockStartingTheft Deterrent and
Door Lock ControlTurn Signal and Hazard
Warning LightUnlock and Seat Belt
Warning
HeadlightHornIlluminationInterior LightLight Auto Turn OffPower SeatPower SourcePower WindowPPS (Progressive
Power Steering)Radio and Player
ABS (Anti±Lock Brake
System)Auto AntennaABS and Traction ControlBack±Up LightChargingCigarette LighterCombination MeterCruise ControlElectronically Controlled
Transmission and A/T
IndicatorEngine ControlFog Light
5±417±325±321±11±416±8 (for 2JZ±GE)24±418±319±3
23±3 (w/ Stereo
Power Amplifier)
24±2 (w/o Stereo
Power Amplifier)1~26±120±312±212±411±28±310±3
13±321±29±214±31±27±4
Taillight
11±421±47±210±2
SYSTEM INDEX
Stop Light
248
Clock
20±315±8 (for 2JZ±GTE)
Electric Tension Reducer
20±416±3 (for 2JZ±GE)15±3 (for 2JZ±GTE)
Front Wiper and Washer
22±44±3 (for 2JZ±GE)3±3 (for 2JZ±GTE)
6±3 (for Canada)5±3 (for USA)
Ignition
9±42±4 (for 2JZ±GE)2±2 (for 2JZ±GTE)
Radiator Fan and
Automatic Air
Conditioning
26±3
Remote Window Defogger
and Mirror Heater
20±2
Rear Wiper and Washer
22±2
OVERALL ELECTRICAL WIRING DIAGRAM

1
234
1 SUPRA ELECTRI CAL WI RI NG DI AGRAM
7ACC
IG1
ST1
IG2 AM1 4
8
3 2AM2
222
221J 6 1J 4
2 1
5 3
21K 4
2A22 1
2IJ1IJ2131J 31J5
1E 81E12
34 II1 23 II1
2 EA3EA2 4
1B
B
A
A
A L
IG
S IJ29 3EA1
4IB1 2
1
B
1
A I19
IGNITION SW
50A AM1
(
for USA)
60A AM1
(
for Canada)
50A
MAINSTARTER
RELAY
7. 5A
ALT±S120A
ALT30A
AM2
BAT TERY[ST ARTERTo Theft Det err ent
ECU< 14±4>
To Engine Control Module
(
Engine and Electr onic ally
Cont rolled Transmission ECU)
< 3±5> < 4±8> < 15±2> < 16±2>To Combination
Meter< 25±6> C9
CLUTCH
START SW
(
M/T) 7. 5A
ST
P
NP2
PARK/ NEUTRAL
POSI TI ON SW
(
NE UT RA L
START SW)
(
A/ T)7. 5A
IGN10A
GAUGE
T6
CHARGE WARNING LIGHT
[TELLTALE LIGHT RH]
(
*1)
(
*2)
1
2
3
G1 B ,G2 A
GE NE RA TOR
(
AL TERNATOR)
1
123 B G1 AG 2 BLACK GE NE RA TOR(
AL TERNATOR) S2 A , S3 B
1
1 ST ARTER
A S2 BS 3 BL ACK
W
W
W WW±R W± RBB BB±WB±WBB B
B L±O
B B L±OB
B B±O Y±GY W
B±Y
B±O
W W
W W Y±GY W
Y±G B± W B± WBB±W
B
B
(
A/T)
(
M/T) (
M/T) (
M/T) (
M/T)
(
A/T) (
A/ T)(
A/T) (
A/T)
(
M/T)3
6
22 22
11 111
212
5 B±Y
B±W
B±OB±W
11EA3EA2 1
6IB2IB3 8 (
*1)(
*1)
(
*2)(
*2)
B
*2: 2JZ±GE *1: 2JZ±GTE
To Day time Running
Light Relay(
Ma i n)
< 6±1>
B(
A/ T)Y±GFrom Combination
Meter< 25±5>
Y± G W
W
Charging Starting Power Source
1B 4
W*3 : Canada
(
*3)

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
2SUPRA
2IG2AM2 3
IJ11IJ19
4IB1
2
2A2 1
2 1
2 1
2 1
2 1
2 1
2A 6B 5B 4B 10B 11B 12B
1A 1B 2B 3B 9B 8B 4A3A 7B2 1
2 1
ECEC +B IGC1 IGC2 IGC3 IGC4 IGC5 IGC6
TACH IGT1 IGT2 IGT3 IGT4 IGT5 IGT6 IGF+B
IGTEXT
IGFC±
N E G1 G2 G± IGNITER
I6
IGNITION COIL NO. 1 I7
IGNITION COIL NO. 2 I8
IGNITION COIL NO. 3 I9
IGNITION COIL NO. 4 I10
IGNITION COIL NO. 5 I11
IGNITION COIL NO. 6
IGNITER
D4
DI STRI B UT OR
N1
NOI S E
FIL TER
To Dat a Link Connector 1
(
Chec k Connector)
< 3±3>
To Engine Contr ol Module
(
Engine and Electronically
Controlled Transmission ECU)
<3±5>I5
IGNITION
COIL
N1
NOISE
FILTER
To Engine Contr ol Module
(
Engine and Elec tronically
Controlled Transmission ECU)
<4±7> To Tachometer
[Comb. Meter]
< 25±6>To Engine Control Module
(
Engine and Electr onic ally
Cont rolled Transmission ECU)
<4±7>
Fr ont side of
intake manifoldFront side of
intake manifold
BR BR B R W
R±Y
R± WBR
BR
R±Y
L±O
P± B
GR±G
GR±B
B± O
R± W
G
B± OL±YY Y± B Y± G Y±R
B B±O
B±O
B±O
B±O
B±O
B±OB±WB±R
B± O
B± OG B± O
B± O
W±R W±R B±O
B
B±O B±O(
2J Z±GE)
B± O B± O(
2J Z±GE)
B±O
B±O B± O B±O B±O B±O B± OB± O
B±OB±O I19
IGNI TION SW
IGNITER
12
34A I2 BLACK
1 23456
789 111210 B I3 BLACK
(
2JZ±GTE)
1234
30A
AM2
BATTERYGND21
B±O
I2 A ,I3 B
112345C I4 BLACK3C 4C 5C
2C 1C I4 C
B±W
To A/C Amplifier
< 26±5>
B±W
1 2
To
Data Link
Connec tor 1
(
Check Connec tor)
< 4±2>B±W
Power Source
Ignition(
for 2JZ±GTE)
Ignition(
for 2JZ±GE)

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
3SUPRA(
Cont. next pa ge)
7ACC
IG1
ST1
IG2 AM1 4
8
3 2AM2
2 1
5 3 5
2 1
2
2 1J 4
22 22
224EA18EA15EA2
11IC2 12IC2 7IC2
2 BP15 4
M 6 BP1 9IJ1
4IB1
4 IJ1 12 IJ1 8 IJ1 IC210IJ16
IJ15
IJ117
IJ113
IF17
EA22 1B 4
22 22
EB BI1 2
1 2
1 2
1 2
1 2
1 2
Left quarter pillar Fr ont side of
left fender
120A ALT30A EFI NO. 2 30A EFI NO. 1
30A AM2
50A AM1(
for USA)
60A AM1(
for Canada)
15 II113 I I1 13 I J2 1J 51J31J6
1E 12
IJ118
ED Rear side of
intake manifold10A GAUGE7. 5A IGN7. 5A ST
B±O
B±RL±O
W± B
B±R L±RO W P±B V±G
L±BBRLG P± GY± L GR±R
L±RY±L
P±G
LG
L±B
B±R W± B8 562
15 16 22 1523 8 12 9 110 174 14
128 3 7 2
1 5
L±R
G
V± W
LW±BV± WGR± L YL
Y±LLG
L±R
G
V±W
L±OV± GB±Y B±YB±R
B±R B±R
B±O
B±Y
GR
B±W
B±YGR
B± Y
L±O
W± R W±R
WWB±OB± Y B±Y B±R
B± O
B± YW±B
3EFI NO. 2 REL AYEFI MAIN RELAY
(
Shor t Pin) EFPCDIFP
AB
OX2 TS
WA WB
F1 4
FUEL PUMP
D5
DA TA L I NK
CONNECTOR 2
(
TDCL)
D1
DA TA LI NK
CONNE CTOR 1
(
CHECK
CONNE CTOR)From ABS
Solenoid
Rel a y
< 19±2> ECT A/D TRC TC ABSFrom O/D Ma in
SW< 15±5>
Fr om Cr uise
Cont rol ECU
< 17±2>
From Traction
ECU< 19±4> From ABS and Traction
ECU< 19±7>
From Cr uise Control
ECU< 17±2>
From Center Air bag
Sens or As smbly< 13±3> Fr om ABS and Trac tion
ECU< 19±8>
W E1 ENGTE2 TE1TT
I19
IGNITION SW
F15
FUEL PUMP ECU +B
AB
234876 1
L BRR G B± YWR±B
R
R± W
R± G
R± Y
R± L
W± B
W± B
W± B
B B± R V±WG#10 #20 #30 #40 #50 #60S1
SFI RESISTOR(
EFI RESISTOR)I12
INJECTOR NO. 1 I13
INJECTOR NO. 2 I14
INJECTOR NO. 3 I15
INJECTOR NO. 4 I16
INJECTOR NO. 5 I17
INJECTOR NO. 6 (
SHI EL DED)
BATTERY+BFrom Center
Airbag Sens or
Assembly
< 13±3>
193
42LG P± GY± L GR±R(
A/T) B±R B±OGR B±W(
A/T) B±YW
BR BRBR
BR
W L±BL±BBR BR
B±OB
B T5
MAL FUNCT I ON I NDI CA TOR
LAMP(
CHECK ENGINE
WARNI NG LIGHT)
GR ±RY±L P±GLG
IG±(
SHI EL DED)
3 TE1 +B OX1
(
SHI ELDED)
(
SHI ELDED) R± L R± Y R± G R±WR R± B B± R V± WG L±B R± LBR
BR L±BBR
From Igniter
<2±2>
From ABS and
Trac tion ECU
< 19±7>
FP E1 1
1 111 2
222 2B±Y
B E 9 DARK GRAYA E1 0 DARK GRAY ENGINE CONTROL MODULE
(
Engine and Electr onic ally
Controlled Transmission ECU) 1E 81K4 5IB1
2A 1
From Center Airbag
Sensor Assembly< 13±3>
From ABS an d
Traction ECU< 19±8>
From Cruis e
Con t r o l E CU< 1 7± 1> P±B
11TC
From ABS and
Trac tion
ECU< 19±4>
13
VF 1
B± R Y
B±Y
2 2W
(
A/T)
Engine Control(
for 2JZ±GTE)
Power Source
(
A/T)

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
4 SUPRA
(Cont. next page
)
7ACC
IG1
ST1
IG2 AM1 4
8
3 2AM2
1J 41E 8
22 2
2
2 4EA18EA13EA3
11 IC2 12 IC2
2BP17IC26IJ1
4IB1
4IJ1 12IJ1
9IJ18IJ1 6BP1
5IJ117 1J113 IJ1 7 IF1 1J 3
2 1
3 5
22IC210
IB15
5 4
M
1 2
1 2
1 2
1 2
1 2
1 2
BI EB4IC1 12IC1
18 IJ1 4 IJ2 14 IJ2 20 I J1 5 IJ 2 1J 5
8IC11E 12
ED II1 1510 IC1 9 IC1 1B 4I19
IGNITION SW
F1 5
FUEL PUMP ECUD5
DATA LI NK CONNECTOR 2
(
TDCL) Fr om ABS ECU< 18±4>
From O/D Main SW
< 16±5>
From Center Airbag
Sen sor As sembl y
< 13±3>
7. 5A IGN
50A AM1 EFI MAIN RELAY
30A AM2
120A ALT30A EFI NO. 1
BATTERY I12 INJECTOR NO. 1I13 INJECTOR NO. 2
I14 INJECTOR NO. 3 I15 INJECTOR NO. 4 I16 INJECTOR NO. 5
I17 INJECTOR NO. 6
To ABS
Relay< 18±1>
From Center Airbag
Sensor Assembly
< 13±3>
Fr om Cr uise
Control ECU< 17±1>
Fr om Center Air bag
Sens or Ass embly
< 13±3>
Fr om ABS ECU< 18±2> D1
DATA L I NK CONNE CTOR 1
(
CHE CK CONNE CTOR)AB TC I G± TS OX2 OX1 E1VF1 VF2 TE1 +B FP +B
FP E DI FPCTC AB ECT A/ D TT
E1 W ENG TE2 TE1
From Cr uise Control
ECU< 17±2>
From Center Air bag
Sens or Ass embly< 13±3>
From ABS ECU< 18±2>From ABS ECU
< 18±2>
From ABS
ECU< 18±3>
F14
FUEL PUMP
(
Shor t Pin)10A
GAUGE
E1 +B
OX
T5
MALFUNCTION INDICATOR LAMP
(
CHECK E NGI NE WA RNI NG L I GHT)
ENGI NE CONTROL MODUL E
(
Engine and Elect ronically
Controlled Transmission ECU)
10
30
50
70 1
21
41
612
22
42
623
23
43
634
24
44
645
25
45
656
26
46
667
27
47
678
28
48
689
29
49
6911
31
51
7120
40
60
80 19
39
59
79 18
38
58
78 17
37
57
77 16
36
56
76 15
35
55
75 14
34
54
74 13
33
53
73 12
32
52
72 B DRA K GRA Y
(
SHIELDED)(
SHI ELDED)
(
SHI ELDED)
(
SHIELDED) R± L R± Y R± G R±WR R± B V± WG R± LW L±B R± L(
*1) BR BR
L±B
BRL±OY±L P±GLG GR±R(
A/ T) B±YGR B± W BR±W(
*1) B±OB± R
L±B GRB±O B±WB±Y
B±R
L±R
LG
P± G
Y± L
W±B
W± R
WWW± R GRV± WG W± B
V±WG L L±R L±R L±RY± L P±G LG L±B GR±R
O
V±G
V±G
B±Y
B± R
B±R B±R B±YW±B
B±Y B± Y B±R B±R
B± O V±WG W±B W±B L
B±RY±LLG
Y± L P± G LG L±B BR GR±R
B±O
B±O B±O B±O
B±O
B±O
B±O
R± L R± Y R± G R±WR R± B
BW±B W±B B± R B±Y
P±B B±WY R± LW BRL±B L±BR± L R±L R±L
BR BR
BR B±RBR±W
YY B±R BR±W
B±Y B± R BR± W
L±O
B± R B± R
BR B±O
B± RP±B B±O
4
2 2
22412 914 10 5
11222 8 13 14 24
HT 21
1
11 1321 5 12783
23 511191615 4 3 33
W± BBR
10
20
30
40 1
11
21
312
12
22
323
13
23
334
14
24
345
15
25
356
16
26
367
17
27
378
18
28
389
19
29
39 ADARKGRAY
B±O B±O B±O B±OWB B±R
WA Fr om Cr uise
Control ECU< 17±2>
E1 0 E9
Rear side of
intake manifold
From Igniter
<2±4>
Fro nt s i de o f
left f ender Left quart er pillar 2A 12 2
W (
A/T)(
A/ T) (
*1)(
*1)(
*1)
(
*1)(
*1)
*1 : California
(
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Engine Control(
for 2JZ± GE) Power
Source
ABS

OVERALL ELECTRICAL WIRING DIAGRAM
12
34
7 SUPRA
ACC
IG1
ST1
IG2 AM1 4 7
AM2
2 1
3 5
221J 4
1B 41K 11
1A 31C16
1 2
1 3
1 3
1 21C 21J 5
1J 11K 5
IE EB EA BI BJ1 2
1H 1
1C 10
1 2
1 21 6BO1 1BM1
3BO1
2BM1
BI BJ 1B 2
1I 10
5IE1 G
W
W± LG G G G G
GGG G YYV V
G
B W±B W±BW± B W± B
W± B W± B W± B W± B W± BG G LG LG
LGW± B
W±B
W± B W G±W G±W G±W
B±Y
G± W
R± W
W± B R± WW± B
W± B W± B G±W G±W W±B W±B
W± B R± W
W±B 2
5 2 11 9 3847 1
3 1
18
4 5
2
11
B±Y
WW± B
I19
IGNITION SW
I20
INTEGRATION
RE LA Y
TAILL IGTHT
RE LA Y
10A
TAIL
DI ODE
OF F
TAIL
HEADTEH
BATTERY
Left kic k
panelFront side
of intake
man i f ol dFr ont side of
right fender10A
GA UGE15A
STOP
T6
REAR LIGHT WARNING LIGHT
[ TEL LT AL E L I GHT RH]
S1 1
ST OP
LI GHT
SW
+T B WRN S TP+
±T E STP±
F5
FRONT SIDE MARKER LI GHT LH F3
PA RK I NG L I GHT L H[ FRONT FOG L I GHT L H] F4
PA RK I NG L I GHT RH[ FRONT FOG L I GHT RH]F6
FRONT SIDE MARKER LI GHT RHR1 2
RE AR SI DE MA RK E R
LIGHT RH
R1 1
RE AR SI DE MA RK E R
LIGHT LH R10
STOP LIGHT RH
[REAR COMB. LIGHT RH]
L1
LI CENSE PLATE LI GHTH1 4
HI GH MOUNT ED
S TOP L I GH T
Left quarter
pillarLower bac k
panel centerLeft quar ter
pillarLower back
panel c enter T TRL Y
W± B W± B
2A 1
60A POWER 50A AM1(
for USA)
60A AM1(
for Canada)
120A ALT
C13
LIGHT CONTROL
SW[COMB. SW]2
W± B
L2
LIGHT FAILURE SENSOR 1 1
12 2
2
W±B
G±W G±W
G± W
To Theft Deterr ent
ECU< 14±3>
1 2
GIJ111
G±W G±W G±WG±W G±W
G±W
G±W
G±W G±W G±W
To ABS ECU< 18±4>
To ABS and Traction ECU
< 19±7>
To Traction ECU< 19±7>
To Engine Contr ol Module
(
Engine and Elec tronically
Controlled Tr ans miss ion
ECU)
<3±8><4±7><15±2><16±2>
T o Cr ui s e Co nt r ol ECU
< 17±4>
To Shift Lock ECU
< 21±3> 1E 12
Y
5 1
R10
TAIL LIGHT RH
[REAR COMB. LIGHT RH]
3
R9
STOP LIGHT LH
[REAR COMB. LIGHT LH]
5
R9
TAIL LIGHT LH
[REAR COMB. LIGHT LH]
5 1
W± B
W± B
Power
SourceT ailligh t S to p Ligh t
2 22W
W
W±B