1997 TOYOTA SUPRA transmission

16
ABBREVIATIONS D
ABBREVIATIONS
The follow abbreviations are used in this manual.
ABS = Anti-Lock Brake Systerm O/D = Overdrive
A/C = Air Conditioning PPS = Progressive Power Steering
ACIS = Acoustic Control Induction System R/B = Relay Block
A/T = Automatic Transmission RH = Right-Hand
COMB. = Combination SFI = Sequential Multiport Fuel Injection
ECU. = Electronic Control Unit SRS = Supplemental Restraint System
EGR = Exhaust Gas Recirculation SW = Switch
ESA = Electronic Spark Advance TEMP. = Temperature
EVAP = Evaporative Emission TRAC = Traction Control
J/B = Junction Block VSV = Vacuum Switching Valve
LH = Left-Hand w/ = With
M/T = Manual Transmission w/o = Without
* The titles given inside the components are the names of the terminals (terminal codes) and are not treated
as being abbreviations.

Position of Parts in Engine Compartment
E 4 Engine Coolant Temp. Sender
E 5 Engine Coolant Temp. SW
E 6 Engine Hood Courtesy SW
E 7 Engine Oil Level Sensor
F 3 Front Fog Light LH
F 4 Front Fog Light RH
F 5 Front Side Marker Light LH
F 6 Front Side Marker Light RH
F 7 Front Turn Signal Light LH
F 8 Front Turn Signal Light RH and Parking Light RH
F 9 Front Wiper Motor
G 1 Generator
G 2 Generator
H 1 Headlight Hi LH
H 2 Headlight Hi RH
H 3 Headlight Lo LH
H 4 Headlight Lo RH
H 5 Heated Oxygen Sensor (Bank 1 Sensor 1)
H 8 Horn LH
H 9 Horn RH A 1 A/C Ambient Temp Sensor
A 2 A/C Condensor Fan Motor
A 3 A/C Triple Pressure SW
(A/C Dual and Single Pressure SW)
A 4 A/C Magnetic Clutch and Lock Sensor
A 5 A/T Fluid Temp. Sensor
A 6 ABS Actuator
A 7 ABS Actuator
A10 ABS Speed Sensor Front LH
A11 ABS Speed Sensor Front RH
B 1 Back-Up Light SW (M/T)
B 2 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor No.1
C 2 Camshaft Position Sensor No.2
C 3 Crankshaft Position Sensor
C 4 Cruise Control Actuator
D 1 Data Link Connector 1
D 2 Daytime Running Light Relay No.3
D 3 Daytime Running Light Relay No.3
E 1 EGR Gas Temp. Sensor
E 2 Electronically Controlled Transmission Solenoid
E 3 Engine Coolant Temp. Sensor
[2JZ-GTE]
24
26
G ELECTRICAL WIRING ROUTING

Position of Parts in Engine Compartment
[2JZ-GTE]
R 1 Radiator Fan Motor No.1
R 2 Radiator Fan Relay No.1
R 3 Radiator Fan Relay No.2
R20 Radiator Fan Motor No.2
S 1 SFI Resistor
S 2 Starter
S 3 Starter
S 5 Sub Throttle Position Sensor
S18 Sub Throttle Valve Motor
T 1 Theft Deterrent Horn
T 2 Throttle Position Sensor
T14 Turbo Pressure Sensor
V 2 VSV (EGR)
V 3 VSV (EVAP)
V 4 VSV (Exhaust Bypass Valve)
V 5 VSV (Exhaust Gas Control Valve)
V 6 VSV (Fuel Pressure Up)
V 7 VSV (Intake Air Control Valve)
V 8 VSV (Waste Gate Valve)
V10 Vehicle Speed Sensor No.1 (Combination Meter)
V11 Vehicle Speed Sensor No.2 (Electronically
Controlled Transmission)
W 1 Washer Motor I 1 Idle AIr Control Valve
I 2 Igniter
I 3 Igniter
I 6 Ignition Coil No.1
I 7 Ignition Coil No.2
I 8 Ignition Coil No.3
I 9 Ignition Coil No.4
I10 Ignition Coil No.5
I11 Ignition Coil No.6
I12 Injector No.1
I13 Injector No.2
I14 Injector No.3
I15 Injector No.4
I16 Injector No.5
I17 Injector No.6
K 1 Knock Sensor (on Front Side)
K 2 Knock Sensor (on Rear Side)
M 1 Mass Air Flow Meter
N 1 Noise Filter
O 1 O/D Direct Clutch Speed Sensor
O 2 Oil Pressure SW
P 1 PPS Solenoid
P 2 Park/Neutral Position SW, Back-Up Light SW and
A/T Indicator Light SW (A/T)
P13 Parking Light LH
25
G

26
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
[2JZ-GE]
E 1 EGR Gas Temp. Sensor
E 2 Electronically Controlled Transmission Solenoid
E 3 Engine Coolant Temp. Sensor
E 4 Engine Coolant Temp. Sender
E 6 Engine Hood Courtesy SW
E 7 Engine Oil Level Sensor
F 3 Front Fog Light LH
F 4 Front Fog Light RH
F 5 Front Side Marker Light LH
F 6 Front Side Marker Light RH
F 7 Front Turn Signal Light LH
F 8 Front Turn Signal Light RH and Parking Light RH
F 9 Front Wiper Motor
G 1 Generator
G 2 Generator A 1 A/C Ambient Temp. Sensor
A 3 A/C Dual Pressure SW
A 4 A/C Magnetic Clutch and Lock Sensor
A 5 A/T Fluid Temp. Sensor
A 6 ABS Actuator
A 7 ABS Actuator
A 8 ABS Relay
A 9 ABS Relay
A10 ABS Speed Sensor Front LH
A11 ABS Speed Sensor Front RH
B 1 Back-Up Light SW (M/T)
B 2 Brake Fluid Level Warning SW
C 3 Crankshaft Position Sensor
C 4 Cruise Control Actuator
D 1 Data Link Connector 1
D 4 Distributor

27
G
Position of Parts in Engine Compartment
[2JZ-GE]
O 2 Oil Pressure SW
P 1 PPS Solenoid
P 2 Park/Neutral Position SW, Back-Up Light SW and
A/T Indicator Light SW (A/T)
P 3 Power Steering Pressure SW
P13 Parking Light LH
S 2 Starter
S 3 Starter
T 1 Theft Deterrent Horn
T 2 Throttle Position Sensor
V 1 VSV (ACIS)
V 2 VSV (EGR)
V 3 VSV (EVAP)
V 6 VSV (Fuel Pressure Up)
V10 Vehicle Speed Sensor No.1 (Combination Meter)
V11 Vehicle Speed Sensor No.2 (Electronically
Controlled Transmission)
W 1 Washer Motor H 1 Headlight Hi LH
H 2 Headlight Hi RH
H 3 Headlight Lo LH
H 4 Headlight Lo RH
H 8 Horn LH
H 9 Horn RH
I 1 Idle Air Control Valve
I 4 Igniter
I 5 Ignition Coil
I 12 Injector No.1
I 13 Injector No.2
I 14 Injector No.3
I 15 Injector No.4
I 16 Injector No.5
I 17 Injector No.6
K 1 Knock Sensor (on Front Side)
K 2 Knock Sensor (on Rear Side)
M 1 Mass Air Flow Meter
M 2 Main Heated Oxygen Sensor (Bank 1 Sensor 1)
M 3 Main Heated Oxygen Sensor (Bank 2 Sensor 1)
N 1 Noise Filter

29
G
Position of Parts in Instrument Panel
O 5 O/D Main SW and A/T Indicator Illumination
P 4 PPS ECU
P 5 Parking Brake SW
R 4 Radio and Player (w/o Stereo Power Amplifier)
R 5 Radio and Player (w/o Stereo Power Amplifier)
R 6 Radio and Player (w/ Stereo Power Amplifier)
R 7 Remote Control Mirror SW
R 8 Rheostat
S 6 Seat Heater SW
S 7 Shift Lock ECU
S 8 Stereo Power Amplifier
S 9 Stereo Power Amplifier
S10 Stereo Power Amplifier
S11 Stop Light SW
S16 Sub Heated Oxygen Sensor (Bank 1 Sensor 2)
T 5 Telltale Light LH
T 6 Telltale Light RH
T 7 Theft Deterrent and Door Lock Control ECU
T 8 Traction Control SW
T13 Theft Deterrent and Door Lock Control ECU
T15 Throttle ECU
T16 Throttle ECU
U 1 Unlock Warning SW E 8 Electronically Controlled Transmission Pattern
Select SW
E 9 Engine Control Module
E10 Engine Control Module
E11 Engine Coolant Temp. Sensor (A/C System)
F10 Front Tweeter (Speaker) LH
F11 Front Tweeter (Speaker) RH
G 3 Glove Box Light
G 4 Glove Box Light SW
H10 Hazard SW
H11 Heated Oxygen Sensor (Bank 1 Sensor 2)
H12 Heater Control SW
H13 Heater Control SW
I18 Ignition Key Cylinder Light
I19 Ignition SW
I20 Integration Relay
J 1 Junction Connector
J 2 Junction Connector
K 4 Kick Down SW
N 2 Noise Filter

STEREO POWER
AMPLIFIER
RADIO AND PLAY ER
BLOWER MOTOR
CONTROL RELAY
SEAT HEATER RELAY
(
PASSENGER' S SEAT)
SEAT HEATER
(
PASSENGER' S SEAT)
BUCKLE SW RH
DOOR COURTESY SW RH
HIGH BEAM INDICATOR
LIGHT [COMB. METER]
TRACTION CONTROL SW
SHIFT LOCK ECU
ELECTRONICALLY
CONTROLLED
TRANSMISSION
PATTERN SELECT SW
O/D MAIN SWSEAT HEATER SW
DA YTIME RUNNING
LIGHT RELAY (
MAIN) (
EP)
(
GND)
HE ATE R CONTROL SW
CI GARETTE LI GHTER
CL O CK
AU TO AN TENNA
CONTROL RELAY GLOVE BOX LIGHT SW
THEFT DETERRENT
AND DOOR LOCK
CONTROL ECU
PPS ECU
DOOR LOCK CONTROL
SW RH RE MOTE CONTROL
MIRROR AND MIRROR
HE A TE R RH
DOOR LOCK MOTOR AND
DOOR UNL OCK
DE TECTION S W RH DOOR KEY LOCK AND
UNLOCK SW RH IG
IH I24 I24 I23
I23
I 2
I11
I10I21
B 2 B 2 I25
B 2 IL116 IF311
IK11
IF114
I18
I18IF
I14(
E2)
(
VER1)COMBINATION
METER
A/C
AMPLIFIER
W- B
(
*2)W- B
(
*1)
W- B
(
*2)
W- B
(
*1)
W- B
(
*3)
W- B
(
A/T)
W- B
(
*1)
W- B
(
*1) W- B
(
*1)W- B
(
*1)W- B
(
*1) W- B
(
*1)
W- B
(
*1)
W- BW- B
W- B W- BR- L W- B W- B W- B
W- B W- B W- B W- B W- B W- BW- B
W- BW- B
W- B W- B W- B W- B W- B W- B W- B W- B
W- B
W- B BR BR BR
A
A
A
A
A
A A
A
W- B W- BW- B
W- B W- B
W- B W- B W- B
JUNCTION
CONNECTOR J 1
I11 : * 3
I 4 : * 4 (
*1)(
*1) (
*6)
(
GND)
(
GND)ABS ECU
W- BW- B
(
A/T)
(
A/T)
DA TA LI NK
CONNECTOR 3 W- B I 3
I14
BR
W- BW- BW- B (
*5)
COMBINATION METER
TELLTALE LIGHT RH
FUEL SENDERI 8
I 3
IE13
BP11
BR BRBR
BR
BR
BR
BR
W- B
I10 : * 3
I 9 : * 4I18 : * 3
I 4 : * 4
I18 : * 3
I 4 : * 4
I11 : * 3
I 1 : * 4
242
J GROUND POINT

70
ENGINE CONTROL (2JZ-GTE)
THE ENGINE CONTROL SYSTEM UTILIZES A MICROCOMPUTER AND MAINTAINS OVERALL CONTROL OF THE
ENGINE, TRANSMISSION ETC. AN OUTLINE OF THE ENGINE CONTROL IS GIVEN HERE.
1. INPUT SIGNALS
(1) ENGINE COOLANT TEMP. SIGNAL CIRCUIT
THE ENGINE COOLANT TEMP. SENSOR DETECTS THE ENGINE COOLANT TEMP. WHICH IS INPUT INTO
TERMINAL THW OF THE ENGINE CONTROL MODULE AS A CONTROL SIGNAL.
(2) INTAKE AIR TEMP. SIGNAL CIRCUIT
THE INTAKE AIR TEMP. SENSOR IS INSTALLED IN THE MASS AIR FLOW METER AND DETECTS THE INTAKE AIR
TEMP. WHICH IS INPUT AS A CONTROL SIGNAL TO TERMINAL THA OF THE ENGINE CONTROL MODULE.
(3) OXYGEN DENSITY SIGNAL CIRCUIT
THE OXYGEN DENSITY IN THE EXHAUST EMISSION IS DETECTED BY THE HEATED OXYGEN SENSOR SIDE AND
INPUT AS A CONTROL SIGNAL TO TERMINAL OX1, OXS OF THE ENGINE CONTROL MODULE.
(4) RPM SIGNAL CIRCUIT
CRANKSHAFT POSITION IS DETECTED BY THE CRANKSHAFT POSITION SENSOR. CRANKSHAFT POSITION IS
INPUT AS A CONTROL SIGNAL TO TERMINAL NE OF THE ENGINE CONTROL MODULE.
(5) THROTTLE POSITION SIGNAL CIRCUIT
THE THROTTLE POSITION SENSOR DETECTS THE THROTTLE VALVE OPENING ANGLE AS A CONTROL SIGNAL,
WHICH IS INPUT INTO TERMINAL VTA1 OF THE ENGINE CONTROL MODULE. WHEN THE VALVE IS COMPLETELY
CLOSED, THE CONTROL SIGNAL IS INPUT INTO TERMINAL IDL1.
(6) VEHICLE SPEED CIRCUIT
THE VEHICLE SPEED IS DETECTED BY VEHICLE SPEED SENSOR NO. 1 INSTALLED IN THE TRANSMISSION AND
THE SIGNAL IS INPUT TO TERMINAL SP1 OF THE ENGINE CONTROL MODULE VIA THE COMBINATION METER.
(7) NEUTRAL POSITION SIGNAL CIRCUIT
THE PARK/NEUTRAL POSITION SW DETECTS WHETHER THE SHIFT POSITION IS IN Nº AND  Pº OR NOT, AND
THE SIGNAL IS INPUT INTO TERMINAL NSW OF THE ENGINE CONTROL MODULE.
(8) A/C SW SIGNAL CIRCUIT
THE OPERATING VOLTAGE OF THE A/C MAGNETIC CLUTCH IS DETECTED AND THE SIGNAL IS INPUT INTO
TERMINAL ACMG OF ENGINE CONTROL MODULE AS A CONTROL SIGNAL.
(9) BATTERY SIGNAL CIRCUIT
VOLTAGE IS CONSTANTLY APPLIED TO TERMINAL BATT OF THE ENGINE CONTROL MODULE. WITH THE
IGNITION SW TURNED ON, THE VOLTAGE FOR ENGINE CONTROL MODULE START-UP POWER SUPPLY IS
APPLIED TO TERMINAL +B OF THE ENGINE CONTROL MODULE VIA EFI MAIN RELAY.
THE CURRENT FLOWING THROUGH THE IGN FUSE FLOWS TO TERMINAL IGSW OF THE ENGINE CONTROL
MODULE.
(10) INTAKE AIR VOLUME SIGNAL CIRCUIT
INTAKE AIR VOLUME IS DETECTED BY THE MASS AIR FLOW METER AND THE SIGNAL IS INPUT TO TERMINAL
VG OF THE ENGINE CONTROL MODULE AS A CONTROL SIGNAL.
(11) STOP LIGHT SW SIGNAL CIRCUIT
THE STOP LIGHT SW IS USED TO DETECT WHETHER THE VEHICLE IS BRAKING OR NOT AND THE SIGNAL IS
INPUT INTO TERMINAL STP OF THE ENGINE CONTROL MODULE AS A CONTROL SIGNAL.
(12) STARTER SIGNAL CIRCUIT
TO CONFIRM WHETHER THE ENGINE IS CRANKING THE VOLTAGE APPLIED TO THE STARTER MOTOR DURING
CRANKING IS DETECTED AND THE SIGNAL IS INPUT IN TERMINAL STA OF THE ENGINE CONTROL MODULE AS
A CONTROL SIGNAL.
(13) ENGINE KNOCK SIGNAL CIRCUIT
ENGINE KNOCKING IS DETECTED BY KNOCK SENSOR FRONT AND REAR SIDE AND THE SIGNAL IS INPUT
TERMINALS KNK1 AND KNK2 AS A CONTROL SIGNAL.
SYSTEM OUTLINE