TOYOTA SUPRA 1986 Service Repair Manual

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
22 SUPRA
7ACC
IG1
ST1 AM1 4
1J 41J 5
2
1K 121K 12
1J 1 1B 41H 5
1IC2
4BM1 3BM1
13 IC2 4 IC2BM15
BO14
BO12
BO15 1
1A
2A
1J 1
IEMM
IB22
IB28
IB29
IE EB 1 IB2 7 1B2
OFF
INT
LOW
WA SH E RW B +S +1 +2 E
C14
FRONT WI PER AND
WASHER SW
[COMB. SW]F9
FRONT WIPER
MOTORM
WASHER1
OFF
INT
ON
WASHER2+1R C1R E WR
BATTERYC14
REAR WI PER AND
WASHER SW
[ COMB. SW]50A AM1(
for USA)
60A AM1(
f or Canada)
120A ALT
R15
REAR WIPER MOTOR AND RELAYREAR WI PER
RE LA Y RE AR WI P ER
MOTORW1
WASHER MOTOR
W± B W± B W±B
GR ± G
L±R
L±W
L
L±O GR±GL±RL L±W
LG L±O
L
W± B W± B
B WLG±R LG±RLG±B LG±B
WLL
LLL
LG±R
LG±B LG±B LG±R
LGL L
L L
2365
13 7 4 18 8 2
110 23
2 1
163
1 1
+B
LM
SM
LS
C1
C1 L BSM +B LM
E +2 +1 B +S L
16 L
LL±W B±Y
20A
WIPER
I19
IGNI TION SW
L
R
11
1 2 2
Lef t kic k panelHIGH
Left kick panel Front s ide of
left f ender MIST
WI PER REL AY Y
2 2
W
Power
SourceRear W iper and W asher Front Wiper and Washer

1
234
23 SUPRA
7ACC
IG1
ST1 AM15
1J 41J 8
1H 3
1B 410IE1 11IE1 2IF3 3IF3
3A6D 2D 1D 5D
4A 2C 9C 1C 8C
2ID1 8ID1 5 IL1 1IL1
IF 7. 5A
RA D
NO. 2R1 3
REAR SPEAKER LHR1 4
REAR SPEAKER RH
1122
2
22
2 1 1 +B 1
GN D ACC
FL+ FL± FR+ FR±RR± RR+ RL ± RL+
F10
FRONT TWEETER
(
SPEAKER)
LHF1 1
FRONT TWEETER
(
SPEAKER)
RH 1 1
F1 2
FRONT DOOR
SPEAKER LHF13
FRONT DOOR
SPEAKER RH
PPV
P V
P
BR V LG LGL L
V LG LGL L
B B Y R W W
R
Y
B
W
Left kick
panel BATTERY I19
IGNITION SW
2 28IB1
2IH2 6IH2 1IH2 3IH2
3A
6A 6A
2A 2A4C 11C 3C 10C
2IH1 6IH1 1IH1 5IH1 4A 3D 4D 9D 8D14 C 5C
2IH3 1IH3
9IE1 13IE1 +B 2
WF+ WF±
11 IF3
P V LGL LG±B LG±R
BRLG±B LG±R
LG±B LG±R
GR
W
L±YL±Y L±Y
L±YB Y R W
L±Y
P± L
W2
WOOFER(
SPEAKER) STEREO POWER AMPLIFI ER
2 134567
8 9 10 11 12 13 14 15 16C S10 BLACK
12 (
*1)
(
*2)A S8
1111 B
11 B12 B
12 B4B
4B5B
5B6B
6B13 B
13 B14 B
14 B10 B
10 B9B
9B3B
3B1B
1B
12135671415 341
8IH1 9IH1
From Auto Antenna
Cont rol Relay< 24±3> FADE GND BEEP MUTE F.L F.R R.L R.R ACC B AMPFADE BEEP MUTE F. L F. R R. L R. R GND OUT OUT AMP+
ANTB GYL R W BR (
SHIELDED) V LG (
SHIELDED)P±L P± LP± L
B±R B±RP± L
R6
RA DI O A ND PL AY ER
8(
*1)
(
*2)
1 11
222
2A 1
50A AM1(
for USA)
60A AM1(
for Canada)
120A ALT
20A RAD NO. 1
*1: w/Woofer(
Speaker)
*2 : w/ o Woof er(
Spe ake r)
12
3456
S8
STEREO POWER AMPLIFIERA,S9 B,S10 ,CDD S1 0
12 34
5678910 ST EREO POWER AMPLI FI ER
6 4 3 2 1
7 8 9 10 11 12 145
13
6 4 3 2 1
7 8 9 10 11 12 145
13 B
*1S9 BLACK
B
*2S9
2 2
WPower
SourceRadio and Player(
w/ Stereo Power Amplifier)

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
24 SUPRA
7ACC
IG1
ST1 AM15
1J 4
221J 8
1E 10
1B 4
1IF1
10IE1 11IE1 2IF3 3IF3 4A 3A
2B 6B 1B 3B 7A 2A 6A 1A 5A 8IB1
8A 9A
2ID1 8ID1 5IL1 1IL1
IF7. 5A
RAD NO. 2
R1 3
REAR SPEAKER LHR14
REAR SPEAKER RH A30
AUTO ANTENNA
CONTROL RELAY
RA DI O A ND PL AY ER
1122
2
22
2 1 1ANT AMP
B
GN DACC
FL + FL ± FR+ FR±AMP ANT
RR± RR+ RL ± RL+
F10
FRONT TWEETER
(
SPEAKER)
LHF1 1
FRONT TWEET ER
(
SPEAKER)
RH 1 1
F1 2
FRONT DOOR SPEAKER LHF1 3
FRONT DOOR SPEAKER RH
PPV
P V
P
BRV LG LGL L
V LG LGL L
B L±YB Y R W
B±RP±LW
R
Y
B
L±Y
W WL±YGR
Left kick
panel BATTERYI19
IGNI TION SWP±L
L±Y
RA DI O A ND PL A YE R
12 34
5678910A R4
12
3456B R5
1 1
1
20A RAD NO. 1
120A ALT 50A AM1(
for USA)
60A AM1(
for Canada)
2
2 24
1B*1 : w/ Stereo Power Amplifier
54 2 31J 5
1E 17
7IE1 6IE1M 12
IH A
A
W±B W±B6E
P±L
B±R(
*1)
(
*1)
(
*2)
(
*2)
ACC IG UP DOWN
G
R
B± R
GR R G
10A
ECU±I GA33
AUTO ANTENNA
MOTOR
To Radio and Play er
< 23±2>
Right kick panelJ1
JUNCTION
CONNE CTOR R4 A , R5 B L±Y
L±Y
78 B±YB±Y
L±Y GR
*2: w/oStereoPowerAmplifier
2A 1GR
2
2
W
Power
SourceRadio and Player(
w/o Stereo Power Amplifier)
Auto Antenna

MEMO

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
25 SUPRA(
Cont. next page)
7ACC
IG1
ST1 AM1 4
1J 41E11
221J 5
1E 12
1B 41B5
IF25 II1 1125 II18II1 2 II1 23 II1
1
See Theft Det err ent
and Door Loc k Contr ol
System< 14±2>
See ABS and
Tr act ion Cont rol
System< 19±4>
See Engine Contr ol
Syst em< 3±3> < 4±3>
See ABS Syst em< 18±4>
See ABS and Tract ion Cont rol
System< 19±4>
MALFUNCTION
I NDI CA TOR L AMP
(
CHECK ENGINE)
OIL OIL
LEVEL TRAC OFF SECURITY
ABS V1 0
VEHI CLE SPEED SENSOR
(
SPEED SENSOR)
NO. 1
(
for Combination Meter)
Se e Th ef t
Deter rent and
Do or L ock Co nt r ol
System< 14±2>
See Inter ior Light
System< 10±1> See Unlock and Seat Belt
Warning System< 10±1> See Taillight System
< 7±3> See Ch arg in g
Sys tem< 1±4> See Illumination
System< 8±4>
See SRS
(
Supplement al
Restraint Syst em)
< 13±3>
OD O A ND
TRI P
CHARGE
REAR
LIGHT
SEAT BEL T
DOORSRS
10A
GAUGE
50A AM1
(
for USA)
60A AM1
(
for Canada)T6
TELL TAL E LIGHT RH I19
IGNITION SW
120A
ALT7. 5A
DOME
To PPS ECU
< 20±3>
To A/C Amplifier
< 26±5>
To Engine Control Module
(
Engine and Electr onic ally
Cont rolled Transmission ECU)
< 3±7> < 4±7> < 15±2> < 16±2>
To Cruis e Contr ol
ECU< 17±3>T5
TELLTALE LI GHT LH
BATTERY
P PP
P P P B±YYY
L±R R±GY
L±W Y±GY
R
R± G
R± YL±RR Y
R
W Y Y
R
W Y±GR±GL±RY
P BR
B±Y
B PPBR L±W L±RY
L±RYR
Y± B Y± B R± G
R±Y
02
OI L P RE SS URE
SW 14 16 18 6 7 4 3 5 1 8 9
1 1 12 1
3 10 6 2 15 2 4 10 5 11 3 12 1 8
2
22
COMBI NATION METER
13 9 8 7 6 5 4 3 2 1101112 139 8 7 6 5 4 3 2 1101112 B C1 0 B L UE CC11 BROWN 2A 1
IFLeft k ic k panel16 11 10 9 8 5 4 3 2 112131467 15A C1 2 2
2
W
Power SourceCombination M eter

5
678
25 SUPRA(
Cont' d)
11B 4B 14A 9B 13A 16A 6A 2A 3A 15A 6B 1C 4C 10C 6C 7C 8C 11C 12B 13B
3C 13 C 7B 12 C 2C 7A 1A 10B1B2B 5B 8A 9A 8B 10A 11A13 IF2
33 II1 24 II1 19 II1
5BP1 3BP1 1BP1
2 1
IF1
EB I H 14 IB2 1 IE1 2 IE1 3 IE115 IF1 29 II 1
ECSee Electronically Controlled
Transmiss ion and A/T I ndicator
System< 15±6> < 16±6>
See Illumination
System< 8±4>
See Tur n Signal
and Hazard Warning
Light Sy stem< 9±3>
See Headlight
System< 5±3> < 6±4>
See Cruise Control
Sys tem< 17±2>To Rheostat< 8±4>
See Electr onic ally Contr olled
Tr ans miss ion and A/T I ndic ator
System< 15±6> < 16±6>
See ABS and Traction
Control System< 19±4>
L
2
D
N
R
P
MA NU
O/D OFF
TURN RH
TURN LH
HIGH BEAM
TRAC
CRUI SE
BRAKE
SPEEDFUEL FUEL TACHO MASTER
From Engine Contr ol Module
(
Engine and Electronically
Controlled Transmission ECU)
<3±7>To Igniter< 2±4>
From Park/Neutral Position
SW(
Neutr al St art SW)(
A/T)
<1±3>
From Clutch Start SW(
M/T)
<1±3>
DELAYBULB
CHECK
RELAY
E7
ENGINE OIL
LEVEL SENSOR
E4
ENGINE COOLANT
TEMP. SENSOR
(
WATER TEMP. SENSOR) F1 4
FUEL SENDERFrom Daytime Running
Light Relay(
Main)
<6±1>
Fr om Day time Running
Light Relay(
Main)
<6±2>
P5
PARKING BRAKE
SWJ1
JUNCTION
CONNE CTOR
B2
BRAKE FLUID LEVEL
WARNING SW
BR±WW± B
BR±W
B B±W
B±W(
*2)
B± WW± B W± B
W± B R±W(
*1)
BR±W(
*2)
R± W
BR±W
B±W
BR BR
G BR Y± L Y± GY± BBR BR
Y±B
Y±G Y±GY±BBR
Y±L
GBRBR
R±GR±Y
L±R L±W Y±GY
B± W(
*1) Y
Y± G
L±W
L±R
R
R±G
R±YB± W(
Canada)
B± W(
Canada)
BR±W BR±WB±W(
Canada)
BR±W
BR±WDIODE
(
*2) (
USA
*1) (
US A)
(
Canada)
(
Canada)(
US A) (
USA)(
*1)
112
ILLUMINATION
*1: 2JZ±GTE
*2: 2JZ±GE
WA TE R
TEMP.
A A 123 COMBI NAT I ON MET ER C10 B , C11 C , C12 A
Fro nt s id e of
intake manifoldLeft kick panelRight kick panel Fr ont side of
left fenderG± O
Fr om ABS ECU< 18±2>
Fr om ABS and
Tr act ion ECU< 19±7>
From Tr act ion ECU
< 19±8>
BR± W
BR±WBR±W
Fr om ABS and
Tr act ion ECU
< 19±8>
R± WR± W
(
*1)(
*1) Y±G
To Generat or
(
Al t e rna t or)
< 1±4>
A
1
2 4 4
Combination M eter

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
26 SUPRA(
Cont. next pa ge)
7ACC
IG1
ST1 AM15
4
6 1
5 2
3
2 1
3 5
4
2 1
5 33 4
1 2
1 2
M
1 2
M
2 3
1 2 1E 13 1J4
22 2222 22 1B 21B4
222 221A 51K2 1J 5
10 IF1
1IB4
3IB2
3IK12EA1
5IF1
2A
EB IG EB2B 1B 1A 3A 2A
1 2
M1IK1 2IK110 II1 EA11
4IG116
IG113
IG115
IG114 M
IF313 BATTERY
120A ALT 60A POWER 50A AM1(
for USA)
60A AM1(
for Canada)30A FAN 50A HTR HEATER
RELAY A/ C MAGNETI C
CL UTCH REL A Y A3
A/C SINGLE
PRESSURE SWE5
ENGINE COOLANT
TEMP. SW
(
WATER T EMP. SW) R1
RADIATOR
FAN MOTORA2
A/C CONDENSER
FAN MOTOR
BLOWER MOTOR
CONT ROL REL AY
B3
BL OWER MOTOR
10A ECU±B R3
RADIATOR FAN
RELAY NO. 2
I19
IGNITION SW7. 5A
HTR
R2
RADIATOR FAN
RELAY NO. 1
To Engine Contr ol
Module(
Engine and
Electronically
Controlled Tr ans miss ion
ECU)
< 3±7> < 4±8>
A4
A/C MAGNETIC
CLUTCH
W± RW
W± LW W±RB B R±L R± L R± L B± YLR±LL±B L±B
W± B W± B
W± B
L L
L±RL±W L±W
L±R W±GL
R±L R±L W±BL±R
R± L W± R(
2JZ±GTE) R± L(
2J Z±GTE)
BBR BR W± BLL
W± B L W±B W±B
W± B
L±WL
L
L±W
L
LW± B R±LW±B
W±B
L±B W± R(
2JZ±GTE)
R± L(
2J Z±GTE) P±L
B±Y
R± LR±L
G±R
G
GR GRG G± RR± L P±L W± R
R±L R±L
FRESH RE CI RC A24
A I R I NL ET CONTROL
SERVO MOTOR
L
L±W
L
W±B W±BL±R W± G
(
2JZ±GTE)
R±L
(
2J Z±GTE)
22 2
2
2
111
112
5
3
4 A/ C AMPLI FI ER
1234 567
8 9 10 11 12 13 14 15 16 17 18A ORANGE
4
12 13 14 15 16 123 5678
9 1011 17181920B ORANGE
1
234 5678
9
10 11 121
3 2ABLACK
1
2 BBLACK
A ORA NGEBL OWE R MOTOR C ON TROL RE LA Y
HE ATE R CONTROL S W
13 14 15 16 17 18 1920123 45
6 7 8 9 10 11 12 13 14B ORANGE
B+B
M+ M± GND S1 1
Fr ont side of
left fenderRight kic k panel12345 6789
10 11 12 13 14 15 16 17 18 19 20 21 22C ORANGE A1 2
A1 3
A1 4
B4 B5
A/C DUAL PRESSURE SW
1
23
412 A A 3 BLACK BA3 GRAY
B4 A , B5 B
H12 H13 22
2
W
W
W± B
Fr ont side of
lef t fenderEAFront side of
r ight f ender
W± B
Radiator Fan Automatic Air Conditioning Power Source

5
678
26 SUPRA(
Cont' d)
1J 8
1E 2
6 IF3 6 IG1 1 IG1 7 IG1 11 IG1 3 IG1 8 IG1 2 IG1 9 IG1 7 IF3
20 II 11 2
1 2
2 1
5IG1 3IB6 1 2
1 213 B 9B 2A 17 A 5A 6A 22 C 9A 3A 1A 18 A 7A 16 A9A 10 A 2A 11 A 7B 2B 13 A 9B 10 B 1B 16 A 12 A 17 A 14 A 4A 3A 15 A 7A 11 B 12 B 4B 3B
8C 9C 10 B1A 6A18A5A6B
6B 21 C 14 A 15 B 16 B 7C 17B 20B 19B 20C 7B 11A 18B 8B 16C 4C 10C 11C 1C 2C 6C 17C 18C 19C 12C 15C 14C 3C 13C 1B 4B 3B 2B 8A 10A 4A 11B
IH IG1426 II 1
11 IB6
EAM 12 I B629 II1 31 II1
8IF3
To Engine Contr ol Module
(
Engine and Electronically
Controlled Transmission ECU)
< 3±6> < 4±8>
From Engine Contr ol Module
(
Engine and Electronically Controlled
Transmission ECU)(
2J Z±GTE)
<3±7>
From Igniter(
2J Z±GE)
< 2±4>
A/C DUAL
PRESSURE SW
A2 6
AI R VENT MODE
CONT ROL S ERVO MOT OR
E1 1
ENGI NE COOL ANT TEMP. SENSOR
(
WATER TEMP. SENSOR)
(
for A/ C Syst em) A1 5
A/ C EVAPORATOR
TEMP. SENSOR A4
A/ C LOCK SENSOR
[A/C MAGNETIC CLUTCH]A1
A/C AMBIENT
TEMP. SENSOR A16
A/C ROOM
TEMP. SENSOR A17
A/C SOLAR SENSOR
A2 5
AI R MI X CONTROL
SERVO MOTOR
J1
JUNCTION
CONNECTOR TSET
VER1 GND S5 SW1 SW2
TS SW3
TR SW4
TAMSW5 SW6
LOCK±I NSW7
SGL±LO L±M1 L±M2
AMH AMC TP TEL±M3 L±HI
L±A/C L±FRS
L±REC L±MAUTO
L±FACE
TW AOD AOF TPOL±B/L
L±FOOT L±F/D
L±DEF L±RDEF IG RDEFGR SPEED +B ACC AI R
AIF AIM/AMOUT
A/C±I N HR BLW PSW IGN MGC15A
CIG
From Telltale Light RH
< 25±1> From Rear Window Defogger
Relay< 20±1> HEATER CONTROL SW
Rr±
DEFOGDEF F/D FOOT B/L FACE AUTORE C/
FRSA/ C FAND± F AND+ OFF
WARM COOL
M
DEF FACE COOL WA RM
A 5 4 5 4312 312
AA
L±Y L±Y L±Y
L
L±W
LW± B B±WL±R LGW Y±L LG±RL±Y G±WR± YVV
R± Y
G±W
L±Y
LG±R
Y±L
W
LGBR±WV±W
V±W
V±W
V±W
BR±W
B±WL±RV± W V± W V±W V±W P±B
G±Y
V±W G±Y[P±BY±L Y±G BR± WW± B W± B W±B W± B W± B
V± W BR±W
BR± WBR±W W± B
BR± W
L±B
V±W
P±B
Y±B
L±R
G±W
R±W
W± L
LG±R
R
P±B
B±W
P
LG
B
GR
LG±B
R± B
G
BR± W
Y
BR
R± Y
V
R± L
B
P
W± R
L±R
GR P± L
W±R
P± L
R±L
G±R
G
R±L R± L
V± W V±W V±W V± W
BR± W BR±W V±W L L±W
V±W V±W V±WV± WBR± W
V± W V± WW± B
P±B
R±L
L H12 A , H13 B
A/C AMPLIFIER A12 C , A13 A , A14 B
Fro nt s id e of
right fender4A 2B 1A
1B(
*2) (
*1) (
*2) (
*1)
A3 A , B
Right kick panel*1: 2JZ±GTE
*2: 2JZ±GE
2 1
Radiator Fan Automatic Air Conditioning