1986 TOYOTA SUPRA ignition

27
Position of Parts in Engine Compartment
[2JZ±GE]
H 1 Headlight Hi LH O 2 Oil Pressure SW
H 2 Headlight Hi RH O 3 Oxygen Sensor (Except California on Front Side)
H 3 Headlight Lo LH O 4 Oxygen Sensor (Except California on Rear Side)
H 4 Headlight Lo RH
H 8 Horn LH P 1 PPS Solenoid
H 9 Horn RH P 2 Park/Neutral Position SW (Neutral Start SW),
Back±Up Light SW and A/T Indicator Light SW
I 1 Idle Air Control Valve (ISC Valve) (for A/T)
I 4 Igniter P 3 Power Steering Pressure SW
I 5 Ignition Coil
I 12 Injector No. 1 S 2 Starter
I 13 Injector No. 2 S 3 Starter
I 14 Injector No. 3
I 15 Injector No. 4 T 1 Theft Deterrent Horn
I 16 Injector No. 5 T 2 Throttle Position Sensor
I 17 Injector No. 6
V 1 VSV (for ACIS)
K 1 Knock Sensor (on Front Side) V 2 VSV (for EGR)
K 2 Knock Sensor (on Rear Side) V 3 VSV (for EVAP)
V 6 VSV (for Fuel Pressure Up)
M 2 Main Heated Oxygen Sensor V 10 Vehicle Speed Sensor (Speed Sensor) No. 1
(for California on Front Side) (for Combination Meter)
M 3 Main Heated Oxygen Sensor V 11 Vehicle Speed Sensor (Speed Sensor) No. 2
(for California on Rear Side) (for Electronically Controlled Transmission)
V 12 Volume Air Flow (Air Flow Meter)
N 1 Noise Filter
W 1 Washer Motor

29
Position of Parts in Instrument Panel
E 8 Electronically Controlled Transmission Pattern O 5 O/D Main SW and A/T Indicator Light (for Shift
Select SW Lever)
E 9 Engine Control Module (Engine and Electronically
Controlled Transmission ECU) P 4 PPS ECU
E 10 Engine Control Module (Engine and Electronically P 5 Parking Brake SW
Controlled Transmission ECU)
E 11 Engine Coolant Temp. Sensor (Water Temp. Sensor) R 4 Radio and Player (w/o Stereo Power Amplifier)
(for A/C System) R 5 Radio and Player (w/o Stereo Power Amplifier)
R 6 Radio and Player (w/ Stereo Power Amplifier)
F 10 Front Tweeter (Speaker) LH R 7 Remote Control Mirror SW
F 11 Front Tweeter (Speaker) RH R 8Rheostat
G 3 Glove Box Light S 6 Seat Heater SW
G 4 Glove Box Light SW S 7 Shift Lock ECU
S 8 Stereo Power Amplifier
H 10 Hazard SW S 9 Stereo Power Amplifier
H 11 Heated Oxygen Sensor (Sub) S 10 Stereo Power Amplifier
H 12 Heater Control SW S 11 Stop Light SW
H 13 Heater Control SW S 16 Sub Heated Oxygen Sensor
(for California)
I 18 Ignition Key Cylinder Light
I 19 Ignition SW T 5 Telltale Light LH
I 20 Integration Relay T 6 Telltale Light RH
T 7 Theft Deterrent ECU
J 1 Junction Connector T 8 TRAC Off SW
J 2 Junction Connector T 9 Traction ECU
T 10 Traction ECU
K 3 Key Interlock Solenoid T 13 Theft Deterrent ECU
K 4 Kick Down SW
U 1 Unlock Warning SW
N 2 Noise Filter

44
POWER SOURCE (Current Flow Chart)
The chart below shows the route by which current flows from the battery to each electrical source (Fusible Link,
Circuit Breaker, Fuse, etc.) and other parts.
The next page and following pages show the parts to which each electrical source outputs current.
50A MAIN Battery
* These are the page numbers of the first page on which
the related system is shown.
The part indicated is located somewhere in the system,
not necessarily on the page indicated here.
20A RAD No. 1(2JZ±GTE)
30A EFI No. 2Generator
(Alternator) 7.5A DOME
7.5A ALT±S
15A HAZ±HORN
15A FOG
30A EFI No. 1
120A ALT
Starter
30A ABS No. 2
7.5A TRAC
(2JZ±GTE)
30A AM230A FAN
50A HTR
60A ABS No. 1
60A POWER
50A AM1 (For USA)
60A AM1 (For Canada)
Headlight Relay
Dimmer Relay (Daytime
Running Light Relay No. 2)
Ignition SW
(AM2)Taillight Relay
(Point Side)
30A DOOR
15A STOP
10A ECU±B
30A DEFOG
Ignition SW
(AM1)
15A HEAD (LH) (For USA)
15A HEAD (LH±LWR)
(For Canada)
15A HEAD (RH) (For USA)
15A HEAD (RH±LWR)
(For Canada)
7.5A DRL
15A HEAD (LH±UPR)
(For Canada)
15A HEAD (RH±UPR)
(For Canada)
7.5A IGN
(2JZ±GTE)
(2JZ±GE)
(Canada)
(Canada) (Canada)
[LOCATION](1): J/B No. 1 (See page 20)(2): R/B No. 2 (See page 19)(3): R/B No. 4 (See page 23) 20
22 23

45
Rear Window
Defogger Relay 10A TAIL
10A PANEL
10A GAUGE
15A SEAT±HTR
Ignition Coil No. 110A MIR±HTR
Engine Control
Module (Engine
and Electronically
Controlled
Transmission ECU)
7.5A RAD No. 2
15A CIG
7.5A ST
20A WIPER
7.5A TURN
10A ECU±IG
7.5A HTR
Ignition Coil No. 2
Ignition Coil No. 3
Ignition Coil No. 4
Ignition Coil No. 5
Ignition Coil No. 6
SFI Resistor
(EFI Resistor)
(2JZ±GTE)
Igniter
Noise Filter
(2JZ±GE)
(Canada) (2JZ±GTE)
(2JZ±GE)
(2JZ±GTE)
Igniter
Injector No. 1
Injector No. 2
Injector No. 3
Injector No. 4
Injector No. 5
Injector No. 6
Igniter
Ignition Coil
Noise Filter
(4): R/B No. 5 (See page 20)
23

49
F14 220
Fuel Pump and Sender
F15 G2 G3 G4 H1 H2 H3 H4 H5 H8 H9 H10 H11 H12 H14 I1 I18 I20 K3 L1 L2 L4 L5 M1 M2 M3 N2 70
8268 122 12294
9694
9694
9694
9670 129 129111
12270122
22811 470
8211 8 94
102 96
108
122184 102102
11 411 8 11 8 70
14082 82 208
Fuel Pump ECU
Generator (Alternator)
Glove Box Light
Glove Box Light SW
Headlight Hi LH
Headlight Hi RH
Headlight Lo LH
Headlight Lo RH
Heated Oxygen Sensor (Main)
Horn LH
Horn RH
Hazard SW
Heated Oxygen Sensor (Sub)
Heater Control SW
High Mounted Stop Light
Idle Air Control Valve
(ISC Valve)
Ignition Key Cylinder Light
Integration Relay
Key Interlock Solenoid
License Plate Light
Light Failure Sensor
Luggage Compartment
Light
Luggage Compartment
Light SW
Mass Air Flow
(Air Flow Meter)
Main Heated Oxygen Sensor
(for California, on Front Side)
Main Heated Oxygen Sensor
(for California, on Rear Side)
Noise Filter
(4): R/B No. 5 (See page 20)
23

56
POWER SOURCE
12
12
12
12
12
12
12
12
12 12
12
1212
12
12
127
25
4
8
3 AM2 AM1ACC
IG1
ST1
IG2
E7
2 2
2 2 2 2 2 2 2 22
2
2
2
2
2
2
2
2
2 2 2 2 IB14
2 4 2 3 4 21
3
5
1
1
3 W±R W±RW
W±R R
B
W±RW
W±L
P±L
B±Y
B±W
B±O
R
R
R±W R±Y
B
B
R±L W W
L±YY B±OB±Y G±RW WR L±Y
B
W
(
*
1)(
2JZ±
GTE) (
2JZ±
GTE)(
2JZ±
GTE)
(
USA) 120A ALT
20A RAD NO. 1
7. 5A DOME
7. 5A ALT±S
15A HAZ±HORN
30A AM260A POWER
60A ABS NO. 1
50A HTR
30A FAN
(
2JZ±GTE)
50A MAIN
15A FOG
30A EFI NO. 1
30A EFI NO. 2
(
2JZ±GTE)
30A ABS NO. 2
(
2JZ±GTE)
7. 5A TRAC
(
2JZ±GTE)
BATTERY
R±WTO DIMMER SW
[COMB. SW]
TO STARTER
FROM PARK/NEUTRAL
POSITION SW
(
NEUTRAL START SW)
(
FOR A/T)
CLUTCH START SW
(
FOR M/T)
TO DAYTIME
RUNNING LIGHT
RE LAY(
MAIN) TO GENERATOR
(
ALTERNATOR)
IGNITION SW I19
2A1
2B 1
HEADLIGHT
RELAY
STARTER RELAY
DIMMER RELAY
(
DAYTIME RUNNING
LIGHT RELAY NO. 2)
(
FOR CANADA)1J 41B 4 2
12 50A AM1(
FOR USA)
60A AM1(
FOR CANADA)
2 2W2
E7 E7
W
TO GENERATOR
(
ALTERNATOR) W
WW
(*
1)
(*
1)(*
1)
(*
1)(*
1) W
L±O
L±
O
TO THEFT
DETERRENT ECU

58
POWER SOURCE
HEADLIGHT RELAY (FOR USA)
2±1 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION OR DIMMER SW AT FLASH POSITION
HEADLIGHT RELAY (FOR CANADA)
2±1 : CLOSED WITH LIGHT CONTROL SW AT HEAD POSITION OR DIMMER SW AT FLASH POSITION
: CLOSED WITH ENGINE RUNNING AND PARKING BRAKE LEVER RELEASED (PARKING BRAKE SW OFF)
TAILLIGHT RELAY
5±3: CLOSED WITH LIGHT CONTROL SW AT TAIL OR HEAD POSITION
I19 IGNITION SW
7±5 : CLOSED WITH IGNITION KEY AT ACC OR ON POSITION
7±4 : CLOSED WITH IGNITION KEY AT ON OR ST POSITION
2±3 : CLOSED WITH IGNITION KEY AT ON OR ST POSITION
7±8 : CLOSED WITH IGNITION KEY AT ST POSITION
: PARTS LOCATION
CODESEE PAGECODESEE PAGECODESEE PAGE
I1929
: 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)
1B20ENGINE ROOM MAIN WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1C20FLOOR NO. 2 WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1H
1J20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
1K
20COWL WIRE AND J/B NO. 1 (LEFT KICK PANEL)
2A22BATTERY AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)
2B22ENGINE ROOM MAIN WIRE AND J/B NO. 2 (ENGINE COMPARTMENT LEFT)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CODESEE PAGEJOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)
IB136ENGINE ROOM MAIN WIRE AND COWL WIRE (LEFT KICK PANEL)
IC236FLOOR NO. 2 WIRE AND COWL WIRE (LEFT KICK PANEL)
: SPLICE POINTS
CODESEE PAGEWIRE HARNESS WITH SPLICE POINTSCODESEE PAGEWIRE HARNESS WITH SPLICE POINTS
E 732ENGINE ROOM MAIN WIREE 832ENGINE ROOM MAIN WIRE
SERVICE HINTS

60
STARTING AND IGNITION (FOR 2JZ±GTE)
7
28
3 AM2 AM1ACC
IG1
ST1
IG2
ST2
30A
AM2 22
21J 6
1J 4
1B 4
221K 4
2 17. 5A
ST
MB 1
A152 31
IB3 8EA1 3IJ29IJ213
I4 E16E16
IF2 13
IF2 10 EA2 1IJ11
IGNITION SW
50A AM1
(
FOR USA)
60A AM1
(
FOR CANADA)
120A
ALT50A
MAIN
BATTERY
STARTERTHEFT DETERRENT
ECU
STARTER
RELAYTO COMBINATION
METERPARK/NEUTRAL
POSITION SW
(
NEUTRAL START
SW)(
A/T) CLUTCH
START SW
(
M/T)P
N
B S2 ,S3A I19
T13 C9 P 2 W
B±W
B±OB±O
B±W
B B±W
B
B
L±OIJ1 2B
(
A/T)
B
(
M/T)
B±W
(
M/T)
B
(
A/T) B±W
(
A/T) B
(
M/T)B±W B±W
BB±W L±OB B
L±OB
B
B
(
A/T)
SRLY 256
5
W±RW
W±RW
IB1 4
11 2
22 1
B
(
A/T)
B
1 2
2A 1
E13 : A/T
E16 : M/T I4
B
B
(
A/T)
(
M/T)(
M/T)
(
A/T)
(
A/T)
(
A/T)
2 2
W