1997 TOYOTA SUPRA fuel pressure

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)

IN-36
- INTRODUCTIONTERMS
36 Author
: Date
:
1997 SUPRA (RM502U) HO2S
Heated Oxygen SensorHeated Oxygen Sensor (HO2S)
IACIdle Air ControlIdle Speed Control (ISC)
IATIntake Air TemperatureIntake or Inlet Air Temperature
ICMIgnition Control Module-
IFIIndirect Fuel InjectionIndirect Injection
IFSInertia Fuel-Shutoff-
ISCIdle Speed Control-
KSKnock SensorKnock Sensor
MAFMass Air FlowAir Flow Meter
MAPManifold Absolute PressureManifold Pressure
Intake Vacuum
MCMixture Control
Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDPManifold Differential Pressure-
MFIMultiport Fuel InjectionElectronic Fuel Injection (EFI)
MILMalfunction Indicator LampCheck Engine Light
MSTManifold Surface Temperature-
MVZManifold Vacuum Zone-
NVRAMNon-V olatile Random Access Memory-
O2SOxygen SensorOxygen Sensor, O2 Sensor (O2S)
OBDOn-Board DiagnosticOn-Board Diagnostic (OBD)
OCOxidation Catalytic ConverterOxidation Catalyst Converter (OC), CCo
OPOpen LoopOpen Loop
PAIRPulsed Secondary Air InjectionAir Suction (AS)
PCMPowertrain Control Module-
PNPPark/Neutral Position-
PROMProgrammable Read Only Memory-
PSPPower Steering Pressure-
PTOXPeriodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAMRandom Access MemoryRandom Access Memory (RAM)
RMRelay Module-
ROMRead Only MemoryRead Only Memory (ROM)
RPMEngine SpeedEngine Speed
SCSuperchargerSupercharger
SCBSupercharger Bypass-
SFISequential Multiport Fuel InjectionElectronic Fuel Injection (EFI), Sequential Injection
SPLSmoke Puff Limiter-
SRIService Reminder Indicator-
SRTSystem Readiness Test-
STScan Tool-
TBThrottle BodyThrottle Body
TBIThrottle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TCTurbochargerTurbocharger
TCCTorque Converter ClutchTorque Converter

Z18230
Brake Fluid Level Warning Switch
Parking Brake Switch
Telltale Light LH
Telltale Light RHVehicle Speed Sensor
Light Failure Sensor
DOME Fuse
Combination Meter
Door Courtesy Switches GAUGE Fuse
ECU-B Fuse
IGN Fuse
PANEL Fuse
TAIL Fuse Integration
Fuel Sender Gauge
: Engine Coolant Temperature Sensor
: Engine Oil Level Sensor
: Low Oil Pressure Warning Switch
: Park/Neutral Position Switch
: Vehicle Speed Sensor 2JZ-GE2JZ-GTE
1
5
4
3
2 Relay
R/B No.2
J/B No.1
Meter Circuit











1
1
5 4
3
2 1
2
3
4
5
BE0E7-01
- BODY ELECTRICALCOMBINATION METER
BE-39
2017 Author
: Date
:
1997 SUPRA (RM502U)
COMBINATION METER
LOCATION

- DIAGNOSTICSENGINE (2JZ-GTE)
DI-151
379 Author
: Date
:
1997 SUPRA (RM502U)
4. FAIL-SAFE CHART
If any of the following codes is recorded, the ECM enters fail-safe mode.
DTC No.Fail-Safe OperationFail-safe Deactivation Conditions
P0100Fuel cutReturned to normal condition
P0110Intake air temp. is fixed at 20°C (68°F)Returned to normal condition
P0115Engine coolant temp. is fixed at 80°C (176°F)Returned to normal condition
P0120VTA is fixed at 0°
The following condition must be repeated at least 2 times
consecutively
When closed throttle position switch is ON:
0.25 V  VTA1 0.95 V
P0135
P0141The heater circuit in which an abnormality is detected is
turned offIgnition switch OFF
P0325
P0330Max. timing retardationIgnition switch OFF
P0500High RPM fuel cut is prohibited
IAC control prohibitedReturned to normal condition
P1100HAC is fixed at 760 mm HgReturned to normal condition
P1300Fuel cutReturned to normal condition
P1400Sub throttle valve is fixed at almost fully-open position
The following condition must be repeated at least 2 times
consecutively.
When closed subthrottle position switch is ON:
0.25 V  VTA2 0.95 V
P1405Waste gate valve is fixed at open positionReturned to normal condition
P1512Fuel cutPressure intake manifold  1400 mm Hg´abs
P1605Max. timing retardationReturned to normal condition
P1630Does not into the manual patternReturned to normal condition
5. CHECK FOR INTERMITTENT PROBLEMS
TOYOTA hand-held tester only:
By putting the vehicle's ECM in check mode, 1 trip detection logic is possible instead of 2 trip detection logic
and sensitivity to detect open circuits is increased. This makes it easier to detect intermittent problems.
(1) Clear DTC (See page DI-147)
(2) Set check mode (See page DI-147)
(3) Perform a simulation test (See page IN-18)
(4) Connector connection and terminal inspection (See page IN-28)
(5) Visual check and contact pressure check (See page IN-28)
(6) Connector handling (See page IN-28)

P11446Fuel Inlet Hose
P11799
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-155
383 Author
: Date
:
1997 SUPRA (RM502U)
7 Check fuel pressure.
PREPARATION:
(a) Be sure that enough fuel is in the tank.
(b) Turn ignition switch ON.
(c) Connect the TOYOTA hand-held tester to DLC3 on the
vehicle.
(d) Use ACTIVE TEST mode to operate the fuel pump.
(e) If you have no TOYOTA hand-held tester, connect the
positive (+) and negative (-) leads from the battery to the
fuel pump connector (See page SF-5).
CHECK:
Check for fuel pressure in the fuel inlet hose when it is pinched
off.
HINT:
At this time, you will hear the sound of flowing.
NG Proceed to page SF-5 and continue
totroubleshoot.
OK
8 Check for spark.
PREPARATION:
(a) Remove ignition coil (See page IG-6).
(b) Remove spark plug.
(c) Install the spark plug to the ignition coil, and connect the
ignition coil connector.
(d) Ground the spark plug.
CHECK:
Check if spark occurs while the engine is being cranked.
NOTICE:
To prevent excess fuel being injected from the injectors
during this test, don't crank the engine for more than 5 ~ 10
sec. at a time.
NG Proceed to page IG-1 and continue to
troubleshoot.
OK
Proceed to matrix chart of problem systems
on page DI-169.

- DIAGNOSTICSENGINE (2JZ-GTE)
DI-157
385 Author
: Date
:
1997 SUPRA (RM502U)
(b) TOYOTA Enhanced Signals
TOYOTA hand-held
tester displayMeasurement ItemNormal Condition*
MISFIRE RPMEngine RPM for first misfire rangeMisfire 0: 0 rpm
MISFIRE LOADEngine load for first misfire rangeMisfire 0: 0 g/r
INJECTORFuel injection time for cylinder No.1Idling: 1.3 ~ 2.7 ms
IAC STEP POSIntake Air Control Valve Step Position Opening position step motor type IAC valveIdling: 10 ~ 50 step
STARTER SIGStarter SignalCranking: ON
CTP SWClosed Throttle Position Switch SignalThrottle fully closed: ON
A/C SIGA/C Switch SignalA/C ON: ON
PNP SWPark / Neutral Position Switch SignalP or N position: ON
ELECTRICAL LOAD SIGElectrical Load SignalDefogger S/W ON: ON
STOP LIGHT SWStop Light Switch SignalStop light switch ON: ON
FC IDLFuel Cut Idle: Fuel cut when throttle valve fully closed, during decelerationFuel cut operating: ON
FC TAUFuel Cut TAU: Fuel cut after between 20 sec. at light loadFuel cut operating: ON
CYL #1
CYL #2
CYL #3
CYL #4
CYL #5
CYL #6
Abnormal revolution variation for each cylinder0%
IGNITIONTotal number of ignitions for every 1,000 revolutions0 ~ 3,0000
EGRT GASEGR Gas Temperature Sensor Value
EGR not operating:
Temperature between intake
air temp. and engine coolant
temp.
FUEL PRES UP VSVFuel Pressure Up VSV SignalHigh temp. restarting: ON
EGR SYSTEMEGR system operating conditionIdling: OFF
FUEL PUMPFuel Pump SignalIdling: ON
A/C MAG CLUTCHA/C Magnetic Clutch SignalA/C ON: ON
EVAP (PURGE) VSVEVAP VSV SignalVSV operating: ON
TURBO BOOST VSVWaste gate valve VSV signalVSV operating: ON
INTK AIR CTL VSVIntake Air Control Valve VSV SignalVSV operating: OFF
EXH GAS CTL VSVExhaust Gas Control Valve VSV SignalVSV operating: OFF
EXH BYPASS VSVExhaust Bypass Valve VSV SignalVSV operating: OFF
TOTAL FT B1Total Fuel Trim Bank 1: Average value for fuel trim system of bank 1Idling: 0.8 ~ 1.2
TOTAL FT B2Total Fuel Trim Bank 2: Average value for fuel trim system of bank 2Idling: 0.8 ~ 1.2
02 LR B1, S1Oxygen Sensor Lean Rich Bank 1, Sensor 1 Response time for oxygen sensor
output to switch from lean to rich.Idling after warmed up:
0 ~ 1,000 m sec.
02 RL B1, S1Oxygen Sensor Rich Lean Bank 1, Sensor 1 Response time for oxygen sensor
output to switch from rich to lean.Idling after warmed up:
0 ~ 1,000 m sec.
*: If no conditions are specifically stated for ºIdlingº, it meas the shift lever is at N or P position, the A/C switch
is OFF and all accessory switches are OFF.

- DIAGNOSTICSENGINE (2JZ-GTE)
DI-159
387 Author
: Date
:
1997 SUPRA (RM502U)DTC No.
(See Page)
Detection ItemTrouble AreaMIL*Memory
P0135
(DI-197)Heated Oxygen Sensor Heater
Circuit Malfunction
(Bank 1 Sensor 1)Open or short in heater circuit of heated oxygen sensor
Heated oxygen sensor heater
ECM

P0136
(DI-199)Heated Oxygen Sensor Circuit
Malfunction
(Bank 1 Sensor 2)
Heated oxygen sensor
P0141
(DI-197)Heated Oxygen Sensor Heater
Circuit Malfunction
(Bank 1 Sensor 2)
Same as DTC No. P0135
P0171
(DI-201)System too Lean
(Fuel Trim)
Air Intake (hose loose)
Fuel line pressure
Injector blockage
Heated oxygen sensor malfunction
Mass air flow meter
Engine coolant temp. sensor

P0172
(DI-201)System too Rich
(Fuel Trim)
Fuel line pressure
Injector blockage, leak
Heated oxygen sensor malfunction
Mass air flow meter
Engine coolant temp. sensor

P0300
(DI-204)Random / Multiple Cylinder
Misfire DetectedIgnition system
In
jector
P0301
P0302
P0303
P0304
P0305
P0306
(DI-204)Misfire Detected
- Cylinder 1
- Cylinder 2
- Cylinder 3
- Cylinder 4
- Cylinder 5
- Cylinder 6
Injector
Fuel line pressure
EGR
Compression pressure
Valve clearance not to specification
Valve timing
Mass air flow meter
Engine coolant temp. sensor

P0325
(DI-209)Knock Sensor 1 Circuit
MalfunctionOpen or short in knock sensor 1 circuit
Knock sensor 1 (looseness)
ECM

P0330
(DI-209)Knock Sensor 2 Circuit
MalfunctionOpen or short in knock sensor 2 circuit
Knock sensor 2 (looseness)
ECM

P0335
(DI-212)Crankshaft Position
Sensor ºAº Circuit
Malfunction
Open or short in crankshaft position sensor circuit for NE sig-
nal
Crankshaft position sensor for NE signal
Starter
ECM

*: ... MIL lights up

- DIAGNOSTICSENGINE (2JZ-GTE)
DI-161
389 Author
: Date
:
1997 SUPRA (RM502U)
DTC CHART (Manufacture Controlled)
DTC No.
(See Page)Detection ItemTrouble AreaMIL*Memory
P1100
(DI-247)Barometric Pressure Sensor Cir-
cuit MAlfunctionECM
P1200
(DI-248)Fuel Pump Relay / ECU Circuit
Malfunction
Open or short in fuel pump ECU circuit
Fuel pump ECU
ECM power source circuit
Fuel pump
ECM
-
P1300
(DI-252)Igniter Circuit
MalfunctionOpen or short in IGF or IGT circuit from igniter to ECM
Igniter
ECM

P1335
(DI-257)Crankshaft Position Sensor
Circuit Malfunction (during
engine running)
Open or short in crankshaft position sensor circuit for NE sig-
nal
Crankshaft position sensor for NE signal
Starter
ECM
-
P1400
(DI-258)Sub Throttle Position Sensor
MalfunctionOpen or short in sub throttle position sensor circuit
Sub throttle position sensor
ECM

P1401
(DI-261)Sub Throttle Position Sensor
Range / Performance ProblemSub throttle position sensor
P1405
(DI-262)Turbo Pressure Sensor Circuit
MalfunctionOpen or short in turbo pressure sensor circuit
Turbo pressure sensor
ECM

P1406
(DI-265)Turbo Pressure Sensor Circuit
Range / Performance ProblemTurbo pressure sensor
P1511
(DI-266)Boost Pressure Low
Malfunction
Air intake (leakage or clogging)
Actuator (for waste gate valve, IACV control valve, exhaust
bypass valve and exhaust gas control valve)
Short in VSV for waste gate valve, IACV control valve, exhaust
bypass valve and exhaust gas control valve circuit
ECM

P1512
(DI-274)Boost Pressure High
Malfunction
Actuator (for waste gate valve and exhaust bypass valve)
Short in VSV for waste gate valve and exhaust bypass valve
circuit
ECM

P1520
(DI-279)Stop Light Switch Signal
MalfunctionShort in stop light switch signal circuit
Stop light switch
ECM

P1600
(DI-282)ECM BATT
MalfunctionOpen in back up power source circuit
ECM
*:
.... MIL dose not light up
 ... MIL lights up