1997 TOYOTA SUPRA cam shaft
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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)
Page 575 of 1807
DI-160
- DIAGNOSTICSENGINE (2JZ-GTE)
388 Author: Date:
1997 SUPRA (RM502U)DTC No.
(See Page)
Detection ItemTrouble AreaMIL*Memory
P0340
(DI-215)Camshaft Position Sensor
Circuit Malfunction
Open or short in camshaft position sensor circuit
Camshaft position sensor
Open or short in crankshaft position sensor circuit for NE2
signal
Crankshaft position sensor for NE2 signal
Starter
ECM
P0401
(DI-217)Exhaust Gas Recirculation Flow
Insufficient Detected
EGR valve stuck closed
Short in VSV circuit for EGR
Open in EGR gas temp. sensor circuit
EGR hose disconnected
ECM
P0402
(DI-227)Exhaust Gas Recirculation Flow
Excessive Detected
EGR valve stuck open
EGR VSV open malfunction
Open in VSV circuit for EGR
Short in EGR gas temp. sensor circuit
ECM
P0420
(DI-231)Catalyst System Efficiency
Below ThresholdThree-way catalytic converter
Open or short in heated oxygen sensor circuit
Heated oxygen sensor
P0441
(DI-234)Evaporative Emission Control
System Incorrect Purge Flow
Open or short in VSV circuit for EVAP
VSV for EVAP
ECM
Vacuum hose blocked or disconnected
Charcoal canister
P0500
(DI-238)Vehicle Speed Sensor
Malfunction
Open or short in vehicle speed sensor circuit
Vehicle speed sensor
Combination meter
ECM
P0505
(DI-240)Idle Control System Malfunction
IAC valve is stuck or closed
Open or short in IAC valve circuit
Open or short in A/C signal circuit
Air intake (hose loose)
P0510
(DI-243)Closed Throttle Position Switch
MalfunctionOpen in closed throttle position switch circuit
Closed throttle position switch
ECM
*: ... MIL lights up
Page 578 of 1807
DI4SJ-01
S04073
Throttle Control ECU
VSV for Intake
Air Control Valve
(VSV1)
VSV for EXhaust
Bypass Valve
(VSV3) Heated Oxygen Sensor
(Bank 1 Sensor 1)
Ignition Coil
Mass Air Flow Meter
(Intake Air Temp. Sensor)
Engine Coolant Temp.
Sensor
VSV for Exhaust
Gas Control Valve
(VSV 2)
VSV for Waste
Gate Valve
(VSV4)VSV for EGR
ECM
IAC Valve
DLC1EGR Gas Temp. Sensor
Ignition Switch
Combination Meter
& Telltale Light RH
Fuel Pump ECU
Fuel Pump
No.1 Vehicle Speed Sensor
DLC3
Park/Neutral Position Switch
Stop Light Switch
Heated Oxygen Sensor
(Bank 1 Sensor 2) Igniter
Knock Sensor 2
Camshaft Position Sensor No.2
VSV for EVAP
Turbo Pressure Sensor
Camshaft Position Sensor No.1
Throttle Position Sensor
Sub Throttle Actuator Knock Sensor 1
Sub Throttle Position Sensor
Crankshaft Position Sensor
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-163
391 Author: Date:
1997 SUPRA (RM502U)
PARTS LOCATION
Page 619 of 1807
DI-204
- DIAGNOSTICSENGINE (2JZ-GTE)
432 Author: Date:
1997 SUPRA (RM502U)
DTC P0300 Random/Multiple Cylinder Misfire Detected
DTC P0301 Cylinder 1 Misfire Detected
DTC P0302 Cylinder 2 Misfire Detected
DTC P0303 Cylinder 3 Misfire Detected
DTC P0304 Cylinder 4 Misfire Detected
DTC P0305 Cylinder 5 Misfire Detected
DTC P0306 Cylinder 6 Misfire Detected
CIRCUIT DESCRIPTION
Misfire: The ECM uses the crankshaft position sensor and camshaft position sensor to monitor changes in
the crankshaft rotation for each cylinder.
The ECM counts the number of times the engine speed change rate indicates that misfire has occurred.
When the misfire rate equals or exceeds the count indicating that the engine condition has deteriorated, the
MIL lights up.
If the misfire rate is high enough and the driving conditions will cause catalyst overheating, the MIL blinks
when misfiring occurs.
DTC No.DTC Detecting ConditionTrouble Area
P0300Misfiring of random cylinders is detected during the any
particular 200 or 1,000 revolutionsIgnition system
Injector
P0301
P0302
P0303For any particular 200 revolutions of the engine, misfiring is
detected which can cause catalyst overheating (This causes
MIL to blink)
j
Fuel line pressure
EGR
Compression pressure
Valve clearance not to specificationP0303
P0304
P0305
P0306For any particular 1,000 revolutions of the engine, misfiring
is detected which causes a deterioration in emission (2 trip
detection logic)
Valve clearance not to specification
Valve timing
Mass air flow meter
Engine coolant temp. sensor
HINT:
When the 2 or more codes for a misfiring cylinder are recorded repeatedly but no Random Misfire code is
recorded, it indicates that the misfires were detected and recorded at different times.
DI4SZ-01
Page 627 of 1807
S03471
Camshaft Position
Sensor No.1
Camshaft Position
Sensor No.2
Camshaft Position
Sensor1
1
1 2
2
2W
O
B-W
L
B-R
BR BR26
6
25
27
7 B
B
B
B
BG1
G1
G2
NE
NE
E1 ECM DI-212
- DIAGNOSTICSENGINE (2JZ-GTE)
440 Author: Date:
1997 SUPRA (RM502U)
DTC P0335 Crankshaft Position Sensor ºAº Circuit
Malfunction
CIRCUIT DESCRIPTION
The crankshaft position sensor (NE signal) consist of a signal plate and a pick up coil. The NE plate has 24
teeth and is mounted on the crankshaft.
When the camshaft rotates, the protrusion on the signal plate and the air gap on the pick up coil change,
causing fluctuations in the magnetic field and generating an electromotive force in the pick up coil.
The NE signal sensor generates 24 signals for every engine revolution. The ECM detects the standard
crankshaft angle based on the G1, G2 signals, detects the actual crankshaft angle and the engine speed
by the NE signals.
DTC No.DTC Detecting ConditionTrouble Area
P0335
No crankshaft position sensor signal (NE signal) to ECM dur-
ing cranking
(2 trip detection logic)Open or short in crankshaft position sensor circuit for NE
signal
C k h ft iti f NE i lP0335No crankshaft position sensor signal (NE signal) to ECM with
engine speed 600 rpm or more
(2 trip detection logic)Crankshaft position sensor for NE signal
Starter
ECM
WIRING DIAGRAM
DI4T1-01
Page 660 of 1807
S03241S03242
A06719
- DIAGNOSTICSENGINE (2JZ-GTE)
DI-215
443 Author: Date:
1997 SUPRA (RM502U)
DTC P0340 Camshaft Position Sensor Circuit
Malfunction
CIRCUIT DESCRIPTION
The camshaft position sensors (G1 and G2 signals) consist of a signal plate and a pick up coil.
The G1, G2 signal plates each have one tooth on the outer circumference and are mounted on the intake
side of the cylinder head.
When the camshaft rotates, the protrusion on the signal plate and the air gap on the pick up coil change,
causing fluctuations in the magnetic field and generating an electromotive force in the pick up coil.
The ECM detects the standard crankshaft angle based on the G1, G2 signals, detects the actual crankshaft
angle and engine speed by the NE signals.
DTC No.DTC Detecting ConditionTrouble Area
P0340
No camshaft position sensor signal to ECM with engine speed
600 rpm or moreOpen or short in camshaft position sensor circuit
Camshaft position sensor
StarterP0340
No crankshaft position sensor signal to ECM during cranking
Starter
ECM
WIRING DIAGRAM
Refer to page DI-212 for the WIRING DIAGRAM.
INSPECTION PROCEDURE
1 Check resistance of camshaft position sensors.
PREPARATION:
Disconnect camshaft position sensor connector.
CHECK:
Measure resistance of camshaft position sensors.
OK:
Resistance
Cold835 - 1,400 W
Hot1,060 - 1,645 W
ºColdº is from - 10°C (14°F) to 50°C (122°F) and ºHotº is from
50°C (122°F) to 100°C (212°F).
DI4T2-01
Page 661 of 1807
FI6519A03396
G. NE Signal Waveforms
5 V/Division
20 m sec./Division (Idling) G1
G2
NE
DI-216
- DIAGNOSTICSENGINE (2JZ-GTE)
444 Author: Date:
1997 SUPRA (RM502U)
Reference INSPECTION USING OSCILLOSCOPE
During cranking or idling, check between ECM terminals
G1, G2 and G1, NE and NE of ECM.
HINT:
The correct waveforms are as shown.
NG Replace distributor.
OK
2 Check for open and short in harness and connector between ECM and camshaft
position sensor (See page IN-28).
NG Repair or replace harness or connector.
OK
3 Inspection sensor installation.
NG Tighten the sensor.
OK
Check and replace ECM (See page IN-28).
Page 1024 of 1807
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