1986 TOYOTA SUPRA Service Repair Manual

OVERALL ELECTRICAL WIRING DIAGRAM
1
234
11 SUPRA
7ACC
IG1
ST1 AM15
4
1J 4
1B 51J 5
2
2 1B 4
1I 16
2A
BI 2 3 13 IB2
15 I C2 6A 5A 7A 4A1J 8
1E 181E 10
1J 1
MM MM 12 ID1 11 I D1 10 I D1 15 IL1 6 IL1 14 IL1
IEB E MLH MLV M+ MRV MRH CONTROL
SW SELECT
SW
RH
LHUP
DOWN
RI GHT
LEFT
UP
DOWN
RI GHT
LEFT8
216537
534 435R7
REMOTE CONTROL MIRROR SW
MH MV M+ M+ MV MH
R17
REMOTE CONTROL
MIRROR RH R16
REMOTE CONTROL
MIRROR LH
Left quarter pillar Left kick panel
D1 0
DOOR COURTESY SW LH
HRL Y TRLY H T DCTYBIG 17
6
50A AM1(
for USA)
60A AM1(
for Canada)
120A ALT 7. 5A DOME
BATTERY
I19
IGNITION SW
From Headlight Relay
< 5±2> < 6±2>See Taillight System
< 7±1> To Combinat ion SW
< 5±1> < 6±2>
WWR R
B R± Y R± YR R±B R±B W±BW± B LG LG±B LG±R
LG LG±BLG±R BR±B BR±Y
LG±R LG±RBR±B BR±Y
GRP±LP± L
LG±R W± B 10A
GA UGE
INTEGRATI ON RELAY I20 A
17. 5A
RA D
NO. 2 B±Y
See Taillight System
<7±1>
3A 2A
9IF2 8IF2L±WG±B
L±WG± BLOCK PLCKTo Door Loc k Motor and Door
Unlock Detection SW LH< 14±4> TO Door Lock Mot or and Door
Unlock Detection SW RH< 14±4>1234567A I20 INTEGRATI ON RELAY
2 2
W11 1
22 2
Power
SourceLight Auto Turn Off Remote Control M irror

12
34
12 SUPRA
1B 21H15
1I 7
2
1J 11D10 1D91J2
IEM 126IC2
3IL1 17 IL1 4IL115 ID1 14 I D1
M 21
M 21M
2BQ1
BI 4312 1BQ1
2A810 9 4
4 5 27 5
13W±L
Y
W± B W± BL L L L W± B R± WG± Y
W± L L L L
B
2 2
1
1
W± B L L±W L±W L±W
L
G±W
R± L R± L G± WL
G±W
R±LL L±B W± B
G±Y
RW± B
Left quarter pillar 5IF3
Lef t kic k panel BATTERY 120A
ALT 60A
POWERPOWER MAIN
RELAY
P9
POWER WI NDOW
MOTOR LHP10
POWER WINDOW
MOTOR RHP1 2
POWER SAET MOTOR
(
for Driver' s
Seat Slide Control)
FRONT REAR FRONT REAR
RE CL I NI NG MOT OR P1 1
POWER SE A T CONT ROL S W
(
for Driver' s Seat)
P7
POWER WINDOW
CONTROL SW RHR±WW± B
L±WUP
POWER WI NDOW
RELAYUP DOWN
30A
DOOR
DOWN UP DOWNNORMALLOCK P8
POWERWINDOWMASTERSW
15
23
12 1
2 2
W
Power Source Power W indow Power Seat
From THEFT DETERRENT
ECU< 14±4>

OVERALL ELECTRICAL WIRING DIAGRAM
12
34
13 SUPRA
7ACC
IG1
ST 1
IG2 AM15
3 2AM2
1J 41J 31J 81B2
22
21G 101G 61E13
1B 4
1J 11E 3 1G 31G41G 71G9
1E 4
2A
IE11 IF1 2 IF1 12 II1 13 34 21 14
E1 E2 +SL ± SL +SR ± SR TC L A
568 911 10 7 12
121211
22
4IB1
BW± BP± B B±Y B±Y P± B
P±B B±Y B±Y B±Y
B±Y
P± B
B
GR
W
R
W± B
W± BB±Y P±B
B±Y
P±B
W± R
W W± R
W
W±L B±O P±L W± L
B±O W± R
L±R
W± L
P± L
B±O
YL G BR
7. 5A
IGN15A
CI G10A
ECU± B
30A AM2
50A AM1(
for USA)
60A AM1(
for Canada)
60A POWER A28
AIRBAG SQUI B
(
Front Pass enger
Airbag Assembly)
A2 7
AI RBAG SQUI B
(
St eer ing Wheel Pad)
IG2 D+ D± P+ P± ACC
C5
CENTER AI RBAG SENSOR ASSEMBLY
BATTERY
Left kick
panelA ABB CONNECTION
DETECTION
PIN I19
IGNITION SW
21 II1 CONNECTION
DETECTION
PIN
F1
FRONT AIRBAG
SENSOR LHF2
FRONT AIRBAG
SENSOR RH
120A ALT
152 SPI RAL
CABLE
111 1 22
22
1T6
S RS WARNI NG LI GHT
[ TEL LT AL E L I GHT RH]
To Data Link
Connector 2(
TDCL)
<3±2><4±2> To Data Link
Connector 2(
TDCL)
<3±3><4±2> To Data Link
Connector 1
(
Check Connector)
<3±3><4±2> To Data Link
Connector 1
(
Check Connector)
<3±3><4±2>
2 22
W
WPower
SourceSRS(
Supplemental Restraint System)

12
34
14 SUPRA
2222IJ 41B 21J51J8 7ACC
IG1
ST1 AM15
4
1B 4
1H 15 1E17 1E2
13 IF1
6IF2
13 ID119 IB6
11 IF2
9IF3 4IE1
4IB67ID1 1ID1
2 1
2 11 2
1K 12
1J 11D101B 5
1E 11
9 IL1 10 IL115IF2 16IF2 10IF2 14IF2
7IL1 2IL1
6 ID1 16 ID1 12 IL1 8 IL1
16 I L1 5ID1 11 IL1M M 7EA1
3ID1
L±W L±WB± RL±R
W
W± L
W(
*2)
W(
*1)
RW(
*1) WY
V±RG G±Y G±Y R±WG± R
W± L W±LW± L W± L
W± B W± B W± B W±B
L LV± R YW G± Y
W±B W±B W±B
W±B
R±WG± R G± R
R±W
3843
R± B G± WR± Y
L±OL±R L±R
L±O
R±Y
G±W
LGW L±WL±Y G±B G±B
L±Y L±R W± B
G± R R±WL±WL±Y L±RL±RW±B W± B W± B
L±W
1
12 21 23 21
14 21
32 43
L±R L±R W
W± B W± BG±Y
R±W
G± R R
P± L
B± Y
22 22 2
1
1
1 1 1
W
G±Y
W± B W± BL±Y
W±B
W± LL±R L±Y G±B
V± R
BATTERY
120A ALT
15A
HA Z± HORN
7. 5A DOME 60A POWER50A AM1(
for USA)
60A AM1(
f or Canada)U1
UNLOCK WARNING
SW
L3
LUGGAGE
COMPARTMENT
KEY UNL OCK SWE6
ENGI NE HOOD
COURTE SY SW 30A D00R 10A ECU±IG15A CIG
W± LUNLOCKLOCK UNLOCKLOCK UNLOCK
LOCK
UNLOCK
LOCK
D12
DOORKEYLOCKAND
UNLOCK SW LH P8
DOOR LOCK CONTROL SW LH
[POWER WINDOW MASTER SW]D1 4
DOOR LOCK CONTROL
SW RH D13
DOORKEYLOCKAND
UNLOCK SW RH D15
DOOR LOCK MOTOR AND DOOR
UNLOCK DETECTION SW LH D16
DOOR LOCK MOTOR AND DOOR
UNLOCK DETECTION SW RH
B
I19
IGNITION SW
LUG DSWH KSW UL3 L2 L1 UL1 UL12 LSWD ACT± LSWP ACT+ EHORN SRLY HEAD TAIL DSWD DSWL +B1 SH ACC IG +B2
R Fro m Horn Re la y
< 9±4>
From Starter Relay
<1±2>
From Headlight Relay
<5±2><6±2>
From Taillight Relay
<7±1>
To Door Cour tes y
SW LH< 10±1>
To Luggage Compartment
Light SW< 10±4>
*1: 2JZ±GE
*2: 2JZ±GTE
T HEFT DET ERRENT ECU
BJ EA I EFr ont side of
r ight f enderLeft k ick panel
W
IH Right kic k panel Lower bac k
panel center 2A 1T1
THEFT
DETERRENT
HORN
W
(
*2) (
*1)(
*1)
(
*2)(
*2) (
*2) (
*1)
Fr om
Integration
Relay< 11±2>
4IF3
2 3
IG
T5
THEFT DETERRENT
INDICATOR LIGHT
[TELLTALE LIGHT LH]1E 1810INDW±L W±B9
R±L R±L W±BW± BDS WP2
Ri g ht ki c k
panel
D11
DOOR COURTESY
SW RH
L±W
Fr om
Integration
Relay< 11±2>
G± B 2 1
22 II1
R±BIF2 3
2 2
W
2Power Source Theft Deterrent and Door Lock Control
W± B 9A 7A 8A 11B
9B 14B 19B 12B 20B 6B 22B 5B 8B 16B 15B 2A 21B 3A 4A1B 4B 7B 23B 10B 25B 24B 6A12 I F3
Y Y
To Power Ma i n
Relay< 12±1>PRLY12 3
456789
19 20 1 2 3 4 6 7 8 9 10 11
25 24 23 22 21 17 15 14 13 12 185
16B T13 ORANGEA T 7 ORANGE THEFT DETERRENT ECU
T7 A ,T13 B

OVERALL ELECTRICAL WIRING DIAGRAM
12
34
15 SUPRA
(Cont. next page
)
7ACC
IG1
ST 1
IG2 AM1 4
8
3 2AM2
1J 4
2
222 221J 31J6
8EA12EA2
22 1B 4
22 221E 81K4
2 1
3 5
2 1
5 313 II 1 13 I J2
EA14 4IB1
24 A 1 A 76 B 31 A 9 B 10 B 31 B 12 B 13 B
33A 77B 2A 4A 12A 24B 62B 42B 63B 41B 43B 64B 65B 45B
2A66 B 28 B 69 B 79 B 80 B 3 A 18 A 25 A 28 A 10 A 9 A 7 A23 B 14B 3B 21B 1B 38A 27A 26A 14A 13A 11A2 1
1 2
3IJ2 38 II1
12 IJ2 5 II1
1 2
13
1H1
1J
W± R
W B± Y
B±W
B±OGR
GR B±R B±RGR
B±Y B±O B± WB± R B±RR± L W± R
W± G LG±RY±G
W± R
W B± O
B±RB±RB± R
W±BB±YB±Y B±YR±LB±RB± Y
R± B
LG±R
G±B
LG±B R GL YP±LB WO W± RY± R
BR BR
BRY G±Y W±L
V±G
W±L
G±Y
W±B W±B
Y G± Y W±LV± G
84156723
2 2
22 1
1
B± OB
I19
IGNI TION SW
Se e En gi ne
Co nt r o l
System< 3±1>
EFI NO. 2 RELAY EFI MAIN RELAY 7. 5A ST
7. 5A I GN
11 1
B2
W± B
120A ALT 30A EFI NO. 2 30A EFI NO. 1 Fr om Park/ Neutral
Posit ion SW(
Neu t r a l
Start SW)
<1±3> Fr om Telltale Light RH
< 25±1> Fr om Stop Light SW
<7±4> Fr om Cr uise Control
ECU< 17±3>
B P G±W BR±B
BATTERYM± R EL I G SW N SW + B
BATT STA SP1 STP OD1 OIL PM1 VTA2 IDL2S2 S1
VCC VTA1 IDL1 E2 THA VG E21
See Engine Cont rol Syst em
<3±7>
K4
KICK DOWN
SW
Fr om ABS and Trac tion
ECU< 19±8>
Fr om Tra cti on
ECU< 19±6>
01
O/ D D I RE CT CL UTC H
SPEED SENSOR
V11
VEHICLE SPEED SENSOR(
Speed Sensor)
NO. 2
(
for Electr onic ally Contr olled Tr ans mis sion)
B±R
E2
EL ECTRONI CALL Y CONTROLL ED
TRANSMISSION SOLENOIDTo Cruise Cont rol
ECU< 17±3>
E 9 B , E10 A ENGINE CONTROL MODULE(
Engine and Electr onic ally Contr olled Tr ans mis sion 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 E9 DARKGRAYENGI NE CONT ROL MODULE
(
Engine and Elec tronically
Contr olled Tr ans mis sion ECU) B±W
B± R
50A AM1(
for USA)
60A AM1(
f or Canada)30A AM2
SLN+ SLU+
SLU± SLN± SLT± SL T+ S1 S2
SLT+ SLT± SLN± SLU± SP2+ SP2± NCO+ NCO± NEO EFI+ EFI± TRC+ TRC± ABS
R 2 L OD 2 MI M KD E0 1 E0 2 E1
1
EB Fron t si d e of
left fenderED
NO. 3
NO. 4
NO. 5
NO. 1
NO. 2
Rear side of
intake manifold 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 A E1 0 DARK DRAY
B WO GL BR
RY
2 2W
5EA2
B±R
B±O
B±R
B±Y
Power SourceElectronically Controlled Transmission and A/T Indicator
(
for 2JZ±GTE)

5
678
15 SUPRA(
Cont' d)
78109234
PRND 2 L 1J 5
12
1E
7 II1 1 II1 18 II1 27 II1
IF31
24
IH IEA
A1 2
36 II 1
BI BJ 1 4106781117 I I1 II1 23
IE112
13 212 B±Y
R± B
LG±R
G±BG±R
R±B
LG±R
G± BYYY Y
YG±R
R± BLG±RG±B G±B
LG±R
G±R
L
GR
Y
W± BW± B W± B
V±G
W±L
G±Y
W±BV±G V±G
V±G
W± B
W± BV±G
W± L
V±G R± B R± B R±BR±B R±B
Y (
A/T)
10A
GAUGE
P2
BACK±UP LIGHT SW AND A/T INDICATOR
LIGHT SW
(
M/T)
R±B
(
A/T)
R±B
W±B R± B To Cruis e Contr ol
ECU< 17±2>
V±G W±B
43MANUAL
NORMALE8
EL ECTRONI CAL LY CONT ROLL ED
TRANSMI SSI ON PATTERN
SELECT SW
L
O/ D OFFMANUP
R
N D2
C1 1
A/ T I NDI CAT OR LI GHT
[COMB. METER]
J1
JUNCTION
CONNECTOR O5
O/DMAINSW
55 44
W± B W±B
R1 0
RH R9
LH
BACK±UP LIGHT
[ REAR COMB. LI GHT]
Lower bac k
panel center Left quarter pillar Right kick panel Left k ick panel To Dat a Li n k
Connector 2
(
TDCL)
<3±2>(
M/T)
(
A/T)
GRLSee Combination Met er
< 25±8>
3 IJ27
G±R
W±B
Electronically Controlled Transmission and A/T Indicator
(
for 2JZ±GTE)Back±Up Light(
for 2JZ±GTE)
R±B

OVERALL ELECTRICAL WIRING DIAGRAM
1
2
34
16 SUPRA(
Cont. next pa ge)
7ACC
IG1
ST 1
IG2 AM1 4
8
3 2AM2
1J 4
2
22 21J 31J6
3 EA3
2 1B 4
2 21E 81K4
2 1
5 313 II 1 13 I J2
EA14 4IB1
24 A 1 A 76 B 31 A 9 B 10 B 8 B
33A 77B 2A 4A 12A 41B 43B 64B 65B 45B 66B 69B 80B 79B 3A 18A 25A 28A 10A 9A23 B 3 B2 1
3IJ2 38 II1
12 IJ2 5 II1
1 2
13
1H1
1J
W± R
W B± YB± WB± OB± RGR
B±YB±O B± WB± R B±RR± L W± RB± R
W± R
W
B±R
B±Y B±YR± LB± Y
LG±R
G±B
R G
BR BR
BRY G±Y W±L
V±G
W±L
G±Y
W±B W±B
Y G± Y W±LV± G
213
2 2
2 1
1
B± OB
I19
IGNI TION SW
EFI MAI N REL AY 7. 5A ST
7. 5A IGN
1 1
B2
W± B
120A ALT 30A EFI NO. 1 Fr om Park/ Neutral
Posit ion SW(
Neu t r a l
Start SW)
<1±3> Fr om Telltale Light RH
< 25±1> Fr om Stop Light
SW< 7±4> Fr om Cr uise Control
ECU< 17±3>
B P G±W BR±B
BATTERYM± R EL I G SW N SW + B
BATT STA SP1 STP OD1S2 S1
VCC VTA1 IDL1 E2 THA KS
See Engine Control System
< 4±8>
K4
KICK DOWN
SW V1 1
VEHI CL E SPEED SENSOR
(
Speed Sensor)
NO. 2
(
for Elec tronically Controlled
Tra nsmi ss i on) E2
EL ECTRONI CALL Y CONTROLL ED
TRANSMISSION SOLENOID
To Cruise Cont rol
ECU< 17±3>
E 9 B , E1 0 A ENGI NE CONTROL MODULE(
Engine and Elec tronically Controlled Transmiss ion 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
7210
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 B E9 DARKGRAY AE1 0 DARK DRAY ENGI NE CONT ROL MODULE
(
Engine and Elec tronically
Contr olled Tr ans mis sion ECU)E1 EO1 EO2 KD M MI OD2 L 2 S3 SP2+ SP2± 8EA1
GR
B± Y B±R
B±W
S2 S1 SL
50A AM1(
for USA)
60A AM1(
for Canada)30A AM2
GR
2A 1
EB Fron t si d e of
left fenderEDRear side of
intake manifold
NO. 2 NO. 1 NO. 3
B WY
2 2WB±Y
35 APS
1 2
BR±WBR
P3
POWER ST EERI NG
PRESSURE SW
BR
Power SourceElectronically Controlled Transmission and A/T Indicator
(
for 2JZ±GE)

5
678
16 SUPRA(
Cont' d)
78109234
PRND 2 L 1J 5
12
1E
7 II1 1 II1 18 II1 27 II1
IF31
24
IH IEA
A1 2
36 II 1
BI BJ 1 4106781117 I I1 II1 23
IE112
13 212 B±Y
LG±R
G±BG±R
LG±R
G± BYYY Y
YG±RLG±RG±B G±B
LG±R
G±R
L
GR
Y
W± BW± B W± B
V±G
W±L
G±Y
W±BV±G V±G
V±G
W± B
W± BV±G
W± L
V±G R± B R± B R±BR±B R±B
Y (
A/T)
10A
GAUGE
P2
BACK±UP LIGHT SW AND A/T INDICATOR
LIGHT SW
(
M/T)
R±B
(
A/T)
R±B R±B R±B To Cr ui se Con tro l
ECU< 17±2>
V±G W±B
43MANUAL
NORMALE8
EL ECTRONI CAL LY CONT ROLL ED
TRANSMI SSI ON PATTERN
SELECT SW
L
O/ D OFFMANUP
R
N D2
C1 1
A/ T I NDI CAT OR LI GHT
[COMB. METER]
J1
JUNCTION
CONNECTOR O5
O/DMAINSW
55 44
W±B
W±BR1 0
RH R9
LHBACK±UP LIGHT
[ REAR COMB. LI GHT]
Lower bac k
panel center Left quarter pillar Right kick panel Left k ick panel To Dat a Li n k
Connector 2
(
TDCL)
<4±2>(
M/T)
(
A/T)
GRR± B L
(
A/T)
3See Combination Meter
< 25±8>
23
II1
G±R
W±B W±B
Electronically Controlled Transmission and A/T Indicator
(
for 2JZ±GE)Back±Up Light(
for 2JZ±GE)