1986 TOYOTA SUPRA check engine light

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)

5678
19 SUPRA(
Cont' d)
26A
12A
13A
23A
24A
10A
8B
3B
9B
2B
1B
7B
20A
6A
19A
7A
4A
22A
16A
21A
9A
17A
3A
18A
5C
6A
20A
8A
5A
18A
17A
4A
9B
1B
2B
10B
25A
4C
9C
12A
8C
2C 1
A15
A2
A24
A7
A13
B15
B6
B4
B5
B7
B8
B11
B14
B16
B6
C12
C 2IB6
4IB2
5IB26 IB2 1 IB5
2IB53IB5 3IC2
8IC29IC210 IB2
11 IB2
IE2 1
2 1
1 2
1 2
IG11A
6B
5B
4B
10B
11B
12B
14A
5A
9A
1C
13A
26A
7C
21A
14A
22A
10A
10C
6IB6
7IB58IB5
9IB510 IB5
5IB614 IB6
4IB3
4 2
3 14631
8IJ2
IF111
II1 21
11
A23
A
2 1
M
IE EA 5B 1B 4B 3B 6B 2B
1A 3A 4A 2IJ2
Fro nt s i de of
right fender Right k ick panel Lef t kick panel
Fr om Stop Light
SW< 7±4> To Parking Brake
SW< 25±7> To Data Link Connec tor 1
(
Check Connec tor)
< 3±3>
GND WAGST
GS2GS1
FL+ FL± FR+ FR± RL+ RL± RR+ RR±GND
GNDGND
R± SRC SMC MT SFR SFL SRR SRL AST TMR MTT LBL D/GCS W GND BCM B± B A A± ACM TC PKBST P ABS0
TRC0 BRP
BRC THFA
BRFA RL 0
RR0 FL 0
FR0 IDL2 IDL1
TRC+ TRC±
EF I + EF I ±
NE O IND
WT BM
BAT IG1
TSRSR MR IG1
BAT FR0FL 0
RR0RL 0
BRFATHFA
BRCBRP
TRC0ABS0 STP PKB TS TC
To Engine
Contr ol Module
(
Engine and
Electronically
Co nt r ol le d
Tra nsmi ss i on
ECU)
<3±8><15±4>
A23
ABS LATERAL
ACCELERATION SENSOR
A10
ABS SPEED
SENSOR FRONT LH A1 1
ABS SPEED
SENSOR FRONT RHA31
ABS SPEED
SENSOR REAR LH A3 2
ABS SPEED
SENSOR REAR RH T3
TRACTION BRAKE
ACTUATORTo Brak e Fluid Level War ning
SW< 25±7> To Data Link Connec tor 2
(
TDCL)
<3±2>
ABS ACTUATOR
T8
TRAC OFF SW
ABS AND TRACTI ON ECU A2 0 A , A21 BTRACTION ECU T9 A ,T10 B
S4
SUB THROTTL E ACTUATOR
To Data Link Connec tor 2
(
TDCL)
<3±2>
To Da ta L i nk
Connect or 1
(
Chec k Connect or)
<3±3>
Left kick panel V± Y
R± W
L±W
L
G± B
W± G V±Y V± Y V±Y
R±W
L±W
L
G±B
W± GW
L W± R
B± R
L±Y
V
L±B
B± R
LG±R
P±B P± B P±B P± B
R± B
R±W
B±Y
V± R
P±G
P±B
GR±R
Y±B
O
LG±B G± W BR±W
G±W BR±WY P± B P±BBRG WL RY
(
SHI ELDED)W±B W± BLG
W±B W±B W±B
W±B
L L±W Y± G
P± B
P
B±Y
Y
L±W L±WY B±YP P± B Y± G G± B W± G
V
V± Y
V±Y
W± B
W± B
W± B
P
LR± W R± W V
V± Y R± WV± G
R± W
W± B
(
SHI ELDED)
(
SHI ELDED)
LG
V
L
R
B
W WB RL V LG(
SHIELDED)
(
SHIELDED)
(
SHIELDED)(
SHI ELDED)
(
SHI ELDED)
W±B B±O
R± L
W± L
L
B±R GR ±R
R
O
W±R
B
W
P± L
W
LG±R
L±Y
W±R
B±RP± L
W±R
B±R
V
L±B
B±R VP±B
52 B±R
GS1
GS2 GST IG1 4 123
6
IB613
V±Y
A6 A ,A7 B,A22 C 15 IJ1
Y W± B
B
12EX0
14 IJ1Y±R Y±RTo Engine Cont rol Module
(
Engine and Electr onically
Contr olled Tr ans mis sion ECU)
< 3±7> < 15±4>
Fr om St op Light
< 7±4> To Parking Brake
SW< 25±7>
Fr om Thr ott le
Posit ion Sens or
< 3±8> Fr om Sub Thrott le
Posit ion Sens or
< 3±8>
ABS and Traction Control

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