1997 TOYOTA SUPRA ECO mode

Important Points in the Customer Problem Analysis

What ----- Vehicle model, system name

When ----- Date, time, occurrence frequency

Where ----- Road conditions

Under what conditions? ----- Running conditions, driving conditions, weather conditions

How did it happen? ----- Problem symptoms
(Sample) Engine control system check sheet.
ENGINE CONTROL SYSTEM Check Sheet
Customer's Name
Driver's Name
Data Vehicle
Brought in
License No.
Model and Model
Year
Frame No.
Engine Model
Odometer Reading
km
miles
Problem Symptoms
Engine does
not Start
Difficult to
Start
Poor Idling
Poor
Drive ability
Engine Stall
Others
Engine does not crankNo initial combustionNo complete combustion
Engine cranks slowly
Other
Incorrect first idleIdling rpm is abnormalHigh ( rpm)Low ( rpm)
Rough idling
Other
HesitationBack fireMuffler explosion (after-fire)Surging
Knocking
Other
Soon after startingAfter accelerator pedal depressed
After accelerator pedal released
During A/C operation
Shifting from N to D
Other
Datas Problem
ConstantSometimes ( times per day/month)
Inspector's
Name
CUSTOMER PROBLEM ANALYSIS CHECK
- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN-19
19 Author
: Date
:
1997 SUPRA (RM502U)
1. CUSTOMER PROBLEM ANALYSIS
In troubleshooting, the problem symptoms must be confirmed accurately and all preconceptions must be
cleared away in order to give an accurate judgment. To ascertain just what the problem symptoms are, it is
extremely important to ask the customer about the problem and the conditions at the time it occurred.
Important Point in the Problem Analysis:
The following 5 items are important points in the problem analysis. Past problems which are thought to be
unrelated and the repair history, etc. may also help in some cases, so as much information as possible should
be gathered and its relationship with the problem symptoms should be correctly ascertained for reference
in troubleshooting. A customer problem analysis table is provided in the troubleshooting section for each
system for your use.

DIAGNOSTIC TROUBLE CODE CHECK PROCEDURE
Diagnostic Trouble
Code Check (Make a
note of and then clear)Confirmation
of SymptomsDiagnostic Trouble
Code CheckProblem Condition
Diagnostic Trouble
Code DisplayProblem symptoms
existSame diagnostic
trouble code is
displayedProblem is still occurring in the diagnostic
circuit.
Normal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit.
(The diagnostic trouble code displayed
first is either for a past problem or it is a
secondary problem.)
No problem
symptoms existThe problem occurred in the diagnostic
circuit in the past.
Normal Code DisplayProblem symptoms
existNormal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit.
No problem
symptoms existNormal code is
displayedThe problem occurred in a place other
than in the diagnostic circuit in the past.
IN-20- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
20 Author
: Date
:
1997 SUPRA (RM502U)
2. SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE CHECK
The diagnostic system in the TOYOTA SUPRA fulfills various functions. The first function is the Diagnostic
Trouble Code Check in which a malfunction in the signal circuits to the ECU is stored in code in the ECU
memory at the time of occurrence, to be output by the technician during troubleshooting. Another function
is the Input Signal Check which checks if the signals from various switches are sent to the ECU correctly.
By using these check functions, the problem areas can be narrowed down quickly and troubleshooting can
be performed effectively. Diagnostic functions are incorporated in the following systems in the TOYOTA SU-
PRA.
SystemDiagnostic Trouble
Code CheckInput Signal Check
(Sensor Check)Other Diagnosis
Function
Engine
Automatic Transmission
Anti-Lock Brake System
ABS & Traction Control System
Supplemental Restraint System
Cruise Control
Air Conditioning (with Check
Mode)
 (with Check
Mode)









Diagnostic Test
Mode
Diagnostic Test
Mode
Actuator Check
In diagnostic trouble code check, it is very important to determine whether the problem indicated by the diag-
nostic trouble code is still occurring or occurred in the past but returned to normal at present. In addition,
it must be checked in the problem symptom check whether the malfunction indicated by the diagnostic
trouble code is directly related to the problem symptom or not. For this reason, the diagnostic trouble codes
should be checked before and after the symptom confirmation to determine the current conditions, as shown
in the table below. If this is not done, it may, depending on the case, result in unnecessary troubleshooting
for normally operating systems, thus making it more difficult to locate the problem, or in repairs not pertinent
to the problem. Therefore, always follow the procedure in correct order and perform the diagnostic trouble
code check.

IN04J-01
- INTRODUCTIONTERMS
IN-35
35 Author
: Date
:
1997 SUPRA (RM502U)
GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE-J1930 terms and abbreviations used in this manual in compliance with SAE rec-
ommendations, as well as their Toyota equivalents.
SAE
ABBREVIATIONSSAE TERMSTOYOTA TERMS
( )--ABBREVIATIONS
A/CAir ConditioningAir Conditioner
ACLAir CleanerAir Cleaner
AIRSecondary Air InjectionAir Injection (AI)
APAccelerator Pedal-
B+Battery Positive Voltage+B, Battery Voltage
BAROBarometric Pressure-
CACCharge Air CoolerIntercooler
CARBCarburetorCarburetor
CFIContinuous Fuel Injection-
CKPCrankshaft PositionCrank Angle
CLClosed LoopClosed Loop
CMPCamshaft PositionCam Angle
CPPClutch Pedal Position-
CTOXContinuous Trap Oxidizer-
CTPClosed Throttle Position-
DFIDirect Fuel Injection (Diesel)Direct Injection (DI)
DIDistributor Ignition-
DLC1
DLC2
DLC3Data Link Connector 1
Data Link Connector 2
Data Link Connector 31: Check Connector
2: Total Diagnosis Comunication Link (TDCL)
3: OBD II Diagnostic Connector
DTCDiagnostic Trouble CodeDiagnostic Code
DTMDiagnostic Test Mode-
ECLEngine Control Level-
ECMEngine Control ModuleEngine ECU (Electronic Control Unit)
ECTEngine Coolant TemperatureCoolant Temperature, Water Temperature (THW)
EEPROMElectrically Erasable Programmable Read Only Memory
Electrically Erasable Programmable Read Only Memory
(EEPROM),
Erasable Programmable Read Only Memory (EPROM)
EFEEarly Fuel EvaporationCold Mixture Heater (CMH), Heat Control Valve (HCV)
EGRExhaust Gas RecirculationExhaust Gas Recirculation (EGR)
EIElectronic IgnitionDistributorless Ignition (DI)
EMEngine ModificationEngine Modification (EM)
EPROMErasable Programmable Read Only MemoryProgrammable Read Only Memory (PROM)
EVAPEvaporative EmissionEvaporative Emission Control (EVAP)
FCFan Control-
FEEPROMFlash Electrically Erasable Programmable
Read Only Memory-
FEPROMFlash Erasable Programmable Read Only Memory-
FFFlexible Fuel-
FPFuel PumpFuel Pump
GENGeneratorAlternator
GNDGroundGround (GND)

124APPENDIXÐSUPRA

SUPRA
Item AreaU.S.A..Body Type2±Door Liftback (Standard Roof)2±Door Liftback (Sport Roof)Vehicle GradeÐModel CodeJZA80L±ALMVFAJZA80L±ALPVFAJZA80L±AJMVFAJZA80L±AJPVFALength mm (in.)4515 (177.8)uuu
OverallWidth mm (in.)1810 (71.3)uuuOverallHeight* mm (in.)1275 (50.2)uuuWheel Base mm (in.)2550 (100.4)uuu
TreadFront mm (in.)1520 (59.8)uuuTreadRear mm (in.)1525 (60.0)uuu
Effective Head RoomFront mm (in.)953.2 (37.5)u946.8 (37.3)uEffective Head RoomRear mm (in.)834.5 (32.9)uuu
sEffective Leg RoomFront mm (in.)1117.0 (44.0)uuu
ghtsEffective Leg RoomRear mm (in.)605.1 (23.8)uuu
We i g
h
Shoulder RoomFront mm (in.)1376.3 (54.2)uuu
icle WShoulder RoomRear mm (in.)1113.2 (43.8)uuu
VehicOverhangFront mm (in.)950 (37.4)uuu
s & VeOverhangRear mm (in.)1015 (40.0)uuu
sions
&Min. Running Ground Clearance mm (in.)120 (4.7)uuu
mensioAngle of Approach degrees13uuu
DimeAngle of Departure degrees17uuu
ajor DFront kg (lb)762 (1680)778 (1715)773 (1705)789 (1740)MajoCurb WeightRear kg (lb)694 (1530)703 (1550)710 (1565)719 (1585)MCurb WeightTotal kg (lb)1456 (3210)1481 (3265)1483 (3270)1508 (3325)Front kg (lb)937 (2065)uuuGross Vehicle WeightRear kg (lb)1002 (2210)uuuGross Vehicle WeightTotal kg (lb)1939 (4275)uuuFuel Tank Capacity l (U.S. gal., Imp. gal.)70 (18.5, 15.4)uuuLuggage Compartment Capacity m3 (cu. ft.)ÐÐÐÐMax. Speed km/h (mph)240 (150)uuuMax. Cruising Speed km/h (mph)193 (120)uuu
Acceleration0 to 100 km/h sec.6.87.46.87.4
ceAcceleration0 to 400 m sec.15.215.715.215.7
mance1st Gear km/h (mph)54 (34)61 (38)54 (34)61 (38)
rform
a
Max Permissible Speed2nd Gear km/h (mph)94 (58)112 (70)94 (58)112 (70)PerfoMax. Permissible Speed3rd Gear km/h (mph)139 (86)Ð139 (86)ÐP4the Gear km/h (mph)ÐÐÐÐTurning DiameterWall to Wall m (ft.)11.5 (38)uuuTurning Diameter(Outside Front)Curb to Curb m (ft.)10.9 (36)uuuEngine Type2JZ±GEuuuValve Mechanism24±Valve, DOHCuuuBore x Stroke mm (in.)86.0 x 86.0 (3.39 x 3.39)uuu
eDisplacement cm3 (cu. in..)2997 (182.9)uuu
ngineCompression Ratio10.0 : 1uuuEngCarburetor TypeSFIuuuResearch Octane No. RON96uuuMax. Output (SAE±NET) kW/rpm (HP @ rpm)164/5800 (220 @ 5800)uuuMax. Torque (SAE±NET) N.m/rpm (lb±ft @ rpm)285/4800 (210 @ 4800)uuu
alBattery Capacity (20HR) Voltage & Amp. hr.12±52uuu
ginectric a lGenerator Output Watts1080uuuEnginElectrStarter Output kW1.4uuuClutch TypeDry, Single PlateÐDry, Single PlateÐTransmission TypeW58A340EW58A340EIn First3.2852.8043.2852.804In Second1.8941.5311.8941.531In Third1.2751.0001.2751.000Transmission Gear RatioIn Fourth1.0000.7051.0000.705Transmission Gear RatioIn Fifth0.783Ð0.783ÐIn SixthÐÐÐÐIn Reverse3.7682.3933.7682.393Differential Gear Ratio4.083uuuDifferential Gear Size mm (in.)205 (8.07)uuu
ssisBrake TypeFrontVentilated Discuuu
ChassBrake TypeRearVentilated DiscuuuChParking Brake TypeDual±ServouuuBrake Booster Type and Style in.Tandem 8º + 9ºuuuProportioning Valve TypeP & B Valveuuu
Suspension TypeFrontDouble WishboneuuuSuspension TypeRearDouble Wishboneuuu
Stabilizer BarFrontSTDuuuStabilizer BarRearSTDuuuSteering Gear TypeRack & PinionuuuSteering Gear Ratio (Overall)17.5 : 1uuuPower Steering TypeIntegral Typeuuu* : Unladen Vehicle, *1 : Electrically Controlled Transmission with an intelligent sporty control

Steering Wheel Pad
(with Airbag) Junction Block No. 1Center Airbag Sensor Assembly Front Airbag Sensor LHFront Passenger Airbag Assembly Front Airbag Sensor RHSRS Warning Light
Spiral Cable
Locations of SRS Components
HANDLING PRECAUTIONS ON RELATED COMPONENTS
1. SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Servicing vehicle with a Supplemental Restraint System (referrerd to as the SRS in the remainder of this
manual) installed.
When handling SRS components (removal, installation or inspection, etc.), always follow the directions
given in the repair manual for the relevant model year to prevent the occurrence of accidents and airbag
malfunction.
Also take the following precautions when repairing the body:

Work must be started after 90 seconds or longer from the time the ignition switch is set to the LOCK
position and the negative (-) terminal cable is disconnected from the battery.
(The airbag system is equipped with a backup power source so that if work is started within 20 seconds
of disconnecting the negative (-) terminal cable of the battery, the airbag may be deployed.)
When the negative (-) terminal cable is disconnected from the battery, memory of the clock and audio
systems will be cancelled. So before starting work, make a record of the contents memorized by each
memory system. Then when work is finished, reset the clock and audio systems as before.
When the vehicle has tilt and telescopic steering, power seat, outside rear view mirror and power shoul-
der belt anchorage, which are all equipped with memory function, it is not possible to make a record of
the memory contents. So when the operation is finished, it will be necessary to explain this fact to the
customer, and request the customer to adjust the features and reset the memory.

When using electric welding, first disconnect the SRS connector (yellow color and 2 pins) under the
steering column near the combination switch connector on the glove compartment finish plate and lower
the front scuff plate before starting work.
INTRODUCTIONIN-6

FOR THE TOYOTA DEALER
COLLISION REPAIR INFORMATION
TITLE: ANTI±CORROSION TREATMENT PAGE 1 of 4
SECTION: GENERAL INFORMATION BULLETIN #82
MODELS: ALL
DATE: DECEMBER 1997
To prevent corrosion and reduce interior noise when replacing body panels, always apply
corrosion inhibiting and sound dampening materials such as body sealer, cavity wax,
undercoating and body foam according to Toyota recommendations.
These recommendations can be found in the Anti±Rust Treatment (AR) section of the
model specific Repair Manual for Collision Damage publication. Collision repair manuals
can be obtained through a Toyota dealership parts department.
BODY SEALER
For waterproofing and corrosion protection measures, always apply body sealer to the
seams and hems of the doors, hoods, etc.
Apply body sealer to required areas:
Door seams (Illustration A.)
Underhood seams (Illustration B.)
Wherever body sealer has been removed during a repair
Illustration A.
Illustration B.

Steel Metal Undercoat (ED Primer) Anti-Chipping Paint Second Coat
Steel Metal Undercoat (ED Primer) Second Coat Top Coat
ANTI-RUST TREATMENT AFTER PAINTING PROCESS
1. ANTI-RUST AGENT (WAX) APPLICATION
To preserve impossible to paint areas from
corrosion, always apply sufficient anti-rust
agent (wax) to the inside of the hemming
areas of the doors and hoods, and around the
hinges, or the welded surfaces inside the
boxed cross-section structure of the side
member, body pillar, etc.
ANTI-RUST AGENT (WAX) APPLICATION
REFERENCE: ANTI-RUST TREATMENT BY PAINTING
Painting prevents corrosion and protects the sheet metal from damage. In this section, anti-chipping paint
only for anti-corrosion purpose is described.
1. ANTI-CHIPPING PAINT
To prevent corrosion and protect the body from damage by flying stones, etc., apply anti-chipping paint
to the rocker panel, wheel arch areas, valance panel, etc.
HINT:
Depending on the model or the application area, there are cases where the application of anti-chipping
paint is necessary before the second coat or after the top coat.

Apply the anti-chipping paint
before the second coat.
Apply the anti-chipping paint
after the top coat.
Anti-Chipping Paint
Top Coat
ANTI-RUST TREATMENTAR-3

FOR THE TOYOTA DEALER
COLLISION REPAIR INFORMATION
TITLE: SCRATCH±RESISTANT PAINT PAGE 1 of 2
SECTION: REFINISH BULLETIN #78
MODELS: JAPAN PRODUCED VEHICLES (AS LISTED)
DATE: AUGUST 1997
Some Toyota models produced in Japan are finished with a Scratch±Resistant paint
technology. This type of coating provides improved resistance to minor scratching. Vehicles
produced with this type of coating can be identified by referring to the chart below and by
the Vehicle Identification Number (VIN). The first character in the VIN of Japan±built
vehicles is a ªJº (J=Japan).
NOTE:U.S. manufactured vehicles do not use this type of paint technology.
ModelColor CodeDate of Introduction
Camry202August 1992
Celica202August 1991
MR2202December 1989
LandCruiser202December 1995
RAV4202January 1995
Supra202April 1993
Color code 202 (Black) is a single±stage paint as applied by the factory. During refinish
work however, two±stage (basecoat/clearcoat) refinishing utilizing the appropriate
materials is recommended.
REFINISH RECOMMENDATIONS
Refinish materials that provide similar scratch±resistant qualities have been developed by
your respective paint vendor. Listed are the refinish materials (basecoat, clearcoat,
reducer, hardener/activator) recommended by Toyota and your paint vendor for refinishing
vehicles originally manufactured with scratch±resistant paint.