1986 TOYOTA SUPRA engine

241
*
4:2JZ±GE *
2:USA *
1 : CANA DA*
3:2JZ±GTE
SUB HEATED OXYGEN
SENSOR
(
FOR CALIFORNIA)
VOLUME AIR FLOW
(
AIR FLOW METER)
POWER STEERING
PRESSURE SW
DOOR LOCK MOTOR AND
DOOR UNLOCK
DETECTION SW LH
ROOM LIGHT SW
[DOOR KEY LOCK AND
UNLOCK SW LH]
DOOR KEY LOCK AND
UNLOCK SW LH
REMOTE CONTROL
MIRROR AND MIRROR
HEATER LH
POWER WINDOW MASTER
SW
PERSONAL LIGHT
CENTER AIRBAG
SENSOR ASSEMBLY
POWER MAIN RELAY
INTEGRA TION RELAY
LIGHT CONTROL SW
[COMB. SW]
DIMMER SW
[COMB. SW]
DAYTIME RUNNING
LIGHT RELAY NO. 3HEATED OXYGEN
SENSOR
(
FOR CALIFORNIA
ON FRONT SIDE)
HEATED OXYGEN
SENSOR
(
FOR CALIFORNIA
ON REAR SIDE)
(
E1)
CRUISE CONTROL
ECU
KICK DOWN SW
CRUISE CONTROLH SW
[COMB. SW]
UNLOCK W ARNING SW
KEY INTERLOCK
SOLENOID
WIPER AND WASHER SW
[COMB. SW]
RHEOSTAT
REMOTE CONTROL
MIRROR SW
TELLTALE LIGHT LH
TURN SIGNAL
FLASHER I11 I17 E27
E28
I17
I4
I9
I2
I2
I3
I3
I1 B1 B1 B1 B1IJ118
IC18
ED
1H13
1K12
1E18
1J1
1K6 1D10
1F6
1G3
IG4
1K5E28
E27
4
IE(
E01)
(
E02)
W±B
W±B
IB513
W±B
(
*
1) W±B
(
*
1)(
*
4) BR BR BR BR BR BR
BR
BR
BR
BR BR
BR
BR
BR
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B
W±B W±BW±B W±B W±B W±B
W±B W±B W±B W±B
W±B W±B
W±B
W±B
W±BBR BR
BR BR BR W±B W±B W±B
(
E1)
(
E2)
W±B W±B
W±B
W±B W±B DATA LINK CONNECTOR 2
(
TDCL)
DATA LINK CONNECTOR 1
(
CHECK CONNECTOR)
ENGINE CONTROL
MODULE
(
ENGINE AND
ELECTRONICALLY
CONTROLLED
TRANSMISSION)
(
A/T)

244
GROUND POINT
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
J 129
: RELAY BLOCKS
CODESEE PAGERELAY BLOCKS (RELAY BLOCK LOCATION)
222R/B NO. 2 (ENGINE COMPARTMENT LEFT
423R/B NO. 4 (LEFT KICK PANEL)
523R/B NO. 5 (ENGINE COMPARTMENT RIGHT)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CODESEE PAGEJUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)
1D20FRONT DOOR LH WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1E20INSTRUMENT PANEL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1F20ROOF WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1G
1H20COWL WIRE AND J/B NO 1 (LEFT KICK PANEL)1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB536ENGINE ROOM MAIN WIRE AND COWL WIRE (RIGHT KICK PANEL)
IC136FLOOR NO. 2 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)
IF336INSTRUMENT PANEL WIRE AND COWL WIRE (RIGHT KICK PANEL)
II138ENGINE WIRE AND INSTRUMENT PANEL WIRE (RIGHT KICK PANEL)
IJ138ENGINE WIRE AND COWL WIRE (RIGHT KICK PANEL)
IK138COWL NO. 4 WIRE AND COWL WIRE (RIGHT KICK PANEL)
IL138FRONT DOOR RH WIRE AND INSTRUMENT PANEL WIRE
BM140BACK DOOR NO. 1 WIRE AND FLOOR NO. 2 WIRE (LEFT SIDE OF PACKAGE TRAY TRIM)
BO140BACK DOOR NO. 2 WIRE AND BACK DOOR NO. 1 WIRE
BP140FUEL GAUGE WIRE AND FLOOR NO. 2 WIRE (LUGGAGE ROOM FRONT LH)
BQ142FLOOR NO. 2 WIRE AND SEAT WIRE (UNDER THE FRONT LH SEAT)
: GROUND POINTS
CODESEE PAGEGROUND POINTS LOCATION
EA32 (2JZ±GTE)FRONT SIDE OF RIGHT FENDEREA34 (2JZ±GE)FRONT SIDE OF RIGHT FENDER
EB32 (2JZ±GTE)FRONT SIDE OF LEFT FENDEREB34 (2JZ±GE)FRONT SIDE OF LEFT FENDER
EC32 (2JZ±GTE)FRONT SIDE OF INTAKE MANIFOLDEC34 (2JZ±GE)FRONT SIDE OF INTAKE MANIFOLD
ED32 (2JZ±GTE)REAR SIDE OF INTAKE MANIFOLDED34 (2JZ±GE)REAR SIDE OF INTAKE MANIFOLD
IE36LEFT KICK PANELIF36LEFT KICK PANEL
IG36RIGHT KICK PANELIH36RIGHT KICK PANEL
BI40LEFT QUARTER PILLAR
BJ40LOWER BACK PANEL CENTER

245
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 2I 9
E 3I1038COWL WIRE
E 532ENGINE ROOM MAIN WIREI11
COWL WIRE
E 7
ENGINE ROOM MAIN WIRE
I1438INSTRUMENT PANEL WIREE 8I1538INSTRUMENT PANEL WIRE
E1132ENGINE WIREI1638CONSOLE BOX WIRE
E1632ENGINE WIREI1738ENGINE WIRE
E18I1838COWL WIRE
E1934ENGINE ROOM MAIN WIREI2038COWL WIRE
E20
ENGINE ROOM MAIN WIRE
I2138INSTRUMENT PANEL WIRE
E24I2338COWL WIREE2734ENGINE WIREI2438COWL WIRE
E28
ENGINE WIRE
B 140FRONT DOOR LH WIRE
I 138COWL WIREB 240FRONT DOOR RH WIRE
I 238COWL WIREB 3
I 338INSTRUMENT PANEL WIREB 540FLOOR NO 2 WIREI 438COWL WIREB 640FLOOR NO. 2 WIRE
I 738FLOOR NO. 2 WIREB 7
I 838INSTRUMENT PANEL WIREB 942SEAT WIRE

Junction Block (The number in the circle is the
J/B No. and connector code is shown beside
it). Junction Blocks are shaded to clearly
separate them from other parts (different junc-
tion blocks are shaded differently for further
clarification.).
Example:
Indicates related system.
Indicates the wiring harness and wiring har-
ness connector. The wiring harness with male
terminal is shown with arrows
Outside numerals are pin numbers.
is used to indicate different wiring and
connector, etc. when the vehicle model, engine
type, or specification is different.
Indicates a shielded cable.
Indicates and located on ground point.
The same code occuring on the next page
indicates that the wire harness is continuous. System Title
Indicates the wiring color.
Wire colors are indicated by an alphabetical code.
B = Black L = Blue R = Red
BR = Brown LG = Light Green V = Violet
G = Green O = Orange W = White
GR = Gray P = Pink Y = Yellow
The first letter indicates the basic wire color and
the second letter indicates the color of the stripe.
Indicates the connector to be connected to a
part (the numeral indicates the pin No.)
The position of the parts is the same as shown
in the wiring diagram and wire routing.
Indicates the pin number of the connector.
The numbering system is different for female
and male connectors.
The numbering system for the overall wiring dia-
gram is the same as above.
Indicates a Relay Block. No Shading is used and
only the Relay Block No. is shown to distinguish
it from the J/B.
247

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)