Camshaft position sensor TOYOTA CAMRY 2000 Service User Guide
[x] Cancel search | Manufacturer: TOYOTA, Model Year: 2000, Model line: CAMRY, Model: TOYOTA CAMRY 2000Pages: 4770, PDF Size: 86.41 MB
Page 1220 of 4770
This system utilizes an engine control module and maintains overall control of the engine, transmission and so on. An outline
of the engine control is explained here.
1. INPUT SIGNALS
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built±in thermistor with a resistance which
varies according to the water temp. 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 into TERMINAL THA of the engine control module.
(3) Oxygen sensor signal circuit
The oxygen density in the exhaust gases is detected and input as a control signal into TERMINALS OXL1, OXR1
(Except California) and OXS of the engine control module. To maintain stable detection performance by the heated
oxygen sensor, a heater is used for warming the sensor. The heater is also controlled by the engine control module
(HTL, HTR (Except California) and HTS).
(4) RPM signal circuit
Camshaft position and crankshaft position are detected by the camshaft position sensor and crankshaft position sensor.
The camshaft position is input as a control signal to TERMINAL G22+ of the engine control module, and the engine
RPM is input into TERMINAL NE+.
(5) Throttle 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.
(6) Vehicle speed signal circuit
The vehicle speed sensor, installed inside the transmission, detects the vehicle speed and inputs a control signal into
TERMINAL SPD of the engine control module.
(7) Park/Neutral position SW signal circuit
The Park/Neutral position SW detects whether the shift position is in neutral, parking or not, and inputs a control signal
into TERMINAL STA of the engine control module.
(8) A/C SW signal circuit
The A/C control assembly (Automatic A/C) or A/C Amplifier (Manual A/C) inputs the A/C operations into TERMINAL A/C
of the engine control module as a control signal.
(9) Battery signal circuit
(California or w/ engine immobiliser and/or traction control)
Voltage is always supplies to TERMINAL BATT of the engine control module.
If you turn on the ignition SW, the current goes from TERMINAL MREL of the engine control module to the EFI relay and
put on the relay, and the voltage related to the engine control module operation is supplied to TERMINAL +B of the
engine control module through the EFI relay.
(Except California or w/ engine immobiliser and/or traction control)
Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned on,
voltage for engine control module start±up power supply is applied to TERMINAL +B of engine control module via EFI
relay.
(10) Intake air volume signal circuit
Intake air volume is detected by the mass air flow meter and a signal is input into TERMINAL VG of the engine control
module as a control signal.
(11) NSW 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 into TERMINAL NSW of the engine control module as a control signal.
(12) Engine knock signal circuit
Engine knocking is detected by the knock sensor 1 and 2, then the signals are input into TERMINALS KNKR and KNKL
of the engine control module as a control signal.
(13) Air fuel ratio signal circuit (California)
The air fuel ratio is detected and input as a control signal into TERMINALS AFL+, AFR+ of the engine control module.
SYSTEM OUTLINE
Page 1232 of 4770
FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1C 91J11
1 2
2 1
IK2 7IK22
IK2 9II3 10 II21
1 I 2 I 2
A 10 A 20 A21 A19 C19 B11 C4 B 6C8B15 C4C17 C5A2
2 1 B8 1 3
2 A
B4 2123
A
1 3
2 5 1
BR
B±YBR BRB±Y(
*6) B±Y
BR
BR
BR
BR
BR
B±Y PS SW THR LOCK IN PRS MGC TE1
A/C SW LOCK
B±LL±R L±W BRW±L W±L W±LG L±Y
G L±YR±BR±B R±W
R±BW
L±Y
L±W
B±R
BR
L
B±W
G±O G±O
B±YB±Y
BR
B±Y
BR
OX1 HT1 TE1 NE+ NE± G+ E LSE1 +B
10A TAIL
10A
MIRROR±
HEATER (
SHIELDED)
(
SHIELDED) (
SHIELDED)
(
*6) (
*6)(
*6)
(
*6)
L
B±R
(
*6)
DIODE
(
IDLE±UP)
HEATED OXYGEN SENSOR
(
BANK 1 SENSOR 1)
DATA LINK
CONNECTOR 1
CRANKSHAFT
POSITION SENSOR
CAMSHAFT
POSITION SENSOR
JUNCTION
CONNECTORH 3
D 1
C 2
C 1
J12
D11
JUNCTION CONNECTOR
A/C SWHEATER CONTROL SW
A/C EVAPORATOR
TEMP. SENSOR
POWER STEERING OIL PRESSURE SWFROM MG
CLT RELAY
FROM
A/C DUAL
PRESSURE SW
FROM A/ C
MAGNETIC
CLUTCH AND
LOCK SENSORJ12
A13
P 2H 9
A14* 5 : CALIFORNIA
* 6 : EXCEPT CALIFORNIA
BR
ENGINE CONTROL MODULEB E 7 E 8ACE 9 +B E1
OX HT* 1 : W/ ENGINE IMMOBILISER SYSTEM
* 2 : W/O ENGINE IMMOBILISER SYSTEM
, , DE10 , B 5C1B7D12 D6D11 A13(
*1)
(
*2)
IG3 8D 4KSW
L±B L±B L±B
TO UNLOCK
WARN ING SW
A 10 A 15 A21 A13 C18 B10 B12
IG3 4II4 3D 1IMLD
R±Y R±Y R±Y
6
IND R±YTHEFT DETERRENT
ECU T 3
(
*1)
(
*2) D 3D8D9TXCT CODE RXCK
R±L
G± W
L±Y
TO TRANSPONDER
KEY AMPLIFIER
DD
J10
JUNCTION
CONNECTORII4 9 * 3 : TMC MADE
* 4 : TMMK MADE
Page 1235 of 4770
ENGINE CONTROL (5S±FE)
This system utilizes an engine control module and maintains overall control of the engine, transmission and so on. An outline
of the engine control is explained here.
1. INPUT SIGNALS
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built±in thermistor with a resistance which
varies according to the engine coolant temp. thus the engine coolant temp. is input in the form of a control signal into
TERMINAL THW of the engine control module.
(2) Intake air temp. signal circuit
The intake air temp. sensor detects the intake air temp., which is input as a control signal into TERMINAL THA of the
engine control module.
(3) Oxygen sensor signal circuit
The oxygen density in the exhaust gases is detected and input as a control signal into TERMINAL OX1 (except
California) and OX2 of the engine control module.
(4) RPM signal circuit
Camshaft position and crankshaft position are detected by the camshaft position sensor and crankshaft position sensor.
Camshaft position is input as a control signal to TERMINAL G+ of the engine control module, and engine RPM is input
into TERMINAL NE+.
(5) Throttle signal circuit
The throttle position sensor detects the throttle valve opening angle, which is input as a control signal into TERMINAL
VTA of the engine control module.
(6) Vehicle speed signal circuit
The vehicle speed sensor, installed inside the transmission, detects the vehicle speed and inputs a control signal into
TERMINAL SPD of the engine control module.
(7) Park/Neutral position SW signal circuit (A/T)
The Park/Neutral position SW detects whether the shift position are in neutral, parking or not, and inputs a control signal
into TERMINAL STA of the engine control module.
(8) A/C SW signal circuit
The A/C amplifier function is built in the engine control module. The A/C SW signal inputs into the TERMINAL A/C SW of
the engine control module.
(9) Battery signal circuit
Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned on, the
voltage for engine control module start±up power supply is applied to TERMINAL +B of engine control module via EFI
relay.
(10) Intake air volume signal circuit
Intake air volume is detected by the manifold absolute pressure sensor (for manifold pressure) and is input as a control
signal into TERMINAL PIN of the engine control module.
(11) 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 into TERMINAL NSW of the engine control module as a control signal.
(12) Engine knock signal circuit
Engine knocking is detected by knock sensor 1 and the signal is input into TERMINAL KNK as a control signal.
(13) Electrical load signal circuit
The signal when systems such as the rear window defogger, headlights, etc. Which cause a high electrical burden are
on is input to TERMINAL ELS as a control signal.
(14) Air fuel ratio signal circuit (California)
The air fuel ratio is detected and input as a control signal into TERMINAL AF+ of the engine control module.
SYSTEM OUTLINE
Page 1471 of 4770
J OVERALL ELECTRICAL WIRING DIAGRAM
9
1011 12
3 CAMRY (
Cont ' d)
ECIntake
man i f ol d ST P 4A
LOCK IN18 C
PRS 13 A
G±WW± LG
MGC 21 AL±YA/ C SW 10 AR±B
LOCK 15 AR± W
NS W 22 AB±W
STA 11 A
GR(
*5)
B±O(
*6)
IGT1 20 CB
IGF 3CW±R
IGT2 19 CY±R
10 II3
W± L
TE1 15 B From Ignition Coil
and Igniter
No. 1, No. 2< 1±3> < 1±4>
12 DNE+
1 2
C 2
CRANKSHAFT
POSI TI ON SENSOR
1 2C 1
CAMSHAFT
POSI TI ON SENSOR6DNE±
11 DG+
12 BKNK
25 CE03
26 CE02
13 CE01
8ASPD
7A15 CE04
To Speedometer
[Comb. Meter]
< 25±8> L
EC Intake
ma ni f o ldBR
B±YBR BR BR(
*4)
BR BR
BR
BR
BR
B±RBRL B±W W
1
(
Shielded) (
Shielded) (
Shielded)BR
BR
BRBR
BR A
A
AA
A
A
AJ23
JUNCTION
CONNECTOR
BR
V± W BR BR
BR
(
*3)
(
*4) TE1 E1+B
L±W
From St op Light
SW< 11±4> To A/ C Magnetic
Clutc h and Loc k
Sens or < 27±4>From A/C Dual
Pressure SW< 27±4>Fr om MG CL T
Relay< 27±3>Fro m A/ C SW
< 27±4> Fro m A/ C SW
< 27±4> Fr om º STARTERº
Fuse< 1±2> From Park/Neut ral Position
SW(
A/ T)
or Clutc h Star t
SW(
M/ T)
< 1±2>12
83D 1
DATA LINK
CONNECTOR 1* 3 : Califor nia
* 4 : Exc ept Calif or nia * 2 : w/o Engine Immobiliser SystemBR BR
24 CE1
BR
(
*3)
ENGINE CONTROL MODULE
A
6II3
Engine Control and Engine Immobiliser System (
5S±FE)BR
BR
BR
BR
G L(
*5)
W(
*6) W
BR
A1 1
AI R F UEL
RA TI O SE NSORHTAF 2C
AF± 14 B
AF + 6B
OX1 6B
HT1 8C 14 23
31 24
H 3
HEAT ED OXYGEN SENSOR
(
Bank 1 Sens or 1)
(
*3) B±W(
*5)
O (
*6)
(
*3) (
*3) (
Shielded) (
Shielded) (
*4) L±Y
(
*4)
HTE1
OX+B
HT AF±+B AF+ A
B
C
D
EB B±Y B±Y
(
*4)
(
*3)
B±Y
(
*4)
1DIMLD
4DKSW
3II4
4IG3 8IG3
To Theft
Det er rent
System< 15±3>To Un l oc k
War ning SW
< 21±3>R±YL±B
R±YL±B
R± YL±B
BR(
*2) 9A 19C 19A 21A 10A 20A 22A 11A 23C 17C 22C 7B 2C14B6B 5B1C(
*1)
9A 8A 4C 17C 5C 13B 15C 14C2DEOM
BR
A16 B 26 C 13 C(
*2) (
*1)
(
*2)* 5 : TMC Made
* 6 : TMMK Made
(
*4)
FA
To Tac hometer
[Comb. Meter]
< 25±5>FA
B±O B±OTACH
JUNCTION
CONNECTORJ27 A
* 1 : w/ Engine Immobiliser System
, E 8 E 7 A B , E 9 C , E10 D
9II4
(
A/T)
K 1
KNOCK SENSOR 1
Page 1511 of 4770
L PART NUMBER OF CONNECTORS
Code Part Name Part NumberCodePart Name Part Number
Note : Not all of the above part numbers of the connector are established for the supply. In case of ordering
a connector or terminal with wire, please confirm in advance if there is supply for it using ªParts Catalog
Newsº (published by Parts Engineering Administration Dept.).
A 1A/C Condenser Fan Motor90980±10928
A 2A/C Magnetic Clutch and Lock Sensor90980±10942
A 3A/C Triple Pressure SW
(A/C Dual and Single Pressure SW)90980±10943
A 4ABS Actuator90980±11413
A 5ABS Actuator90980±10891
A 6ABS Actuator and ECU90080±98070
A 7ABS and Traction Actuator90980±11698
A 8ABS and Traction Actuator90980±11413
A 9ABS Speed Sensor Front LH90980±11075A10ABS Speed Sensor Front RH90980±11 075
A11Air Fuel Ratio Sensor90980±11178
A12A/C Amplifier90980±10807
A13A/C Evaporator Temp. Sensor90980±10825
A14A/C SW90980±10631
A15ABS and Traction ECU90980±11390
A16ABS and Traction ECU90980±11391
A17ABS and Traction ECU90980±11424A18ABS ECU90980±11424
A19ABS ECU90980±11390
A20Air Vent Mode Control Servo Motor90980±11165
A22Airbag Squib
(Front Passenger Airbag Assembly)90980±11884
A23Airbag Squib (Steering Wheel Pad)90980±10850
A24Ashtray Illumination81945±33010
A25ABS Speed Sensor Rear LH90980±11060A26ABS Speed Sensor Rear RH90980±11060
A27Auto Antenna Motor and Relay90980±11697
A28Air Fuel Ratio Sensor (Bank 1 Sensor 1)90980±11178A29Air Fuel Ratio Sensor (Bank 2 Sensor 1)90980±11 178
A30A/C Ambient Temp. Sensor90980±11070
A31Airbag Sensor Front LH90980±11856A32Airbag Sensor Front RH90980±11 856
A33A/C Blower Motor Linear Controller90980±11676
A34A/C Control Assembly90980±11390
A35A/C Control Assembly90980±11391
A36A/C Room Temp. Sensor90980±10825
A37A/C Solar Sensor90980±11918
A38Air Inlet Control Servo Motor90980±11165
A39Air Mix Control Servo Motor90980±11319
A40Automatic Light Control Sensor90980±11107
B 1Back±Up Light SW90980±11250
B 2Brake Fluid Level Warning SW90980±11207
B 3Blower Motor90980±10903
B 4Blower Resistor90980±10976
B 5Blower SW90980±10877
B 6Buckle SW LH90980±10825B 7Buckle SW LH90980±10825
B 8Blower Resistor (Low Speed)90980±10976
C 1Camshaft Position Sensor90980±10947C 2Crankshaft Position Sensor90980±10947
C 3Cruise Control Actuator90980±11150
C 4Cigarette Lighter90980±10760
C 5Cigarette Lighter Illumination90980±11148
C 6Clock90980±11013
C 7Clutch Start SW90980±10825
C8Combination Meter (TMC Made)90980±11114C 8Combination Meter (TMMK Made)90980±98048
C9Combination Meter (TMC Made)90980±11113C 9Combination Meter (TMMK Made)90980±98046
C10Combination Meter (TMC Made)90980±11115C10Combination Meter (TMMK Made)90980±98047
C11Combination SW90980±11594
C12Combination SW90980±11616
C13Combination SW90980±11672
C14Cruise Control Clutch SW90980±10906
C15Cruise Control ECU90980±11391
C16Condenser90980±10860
C17Center Airbag Sensor Assembly90980±11869
C18Center Airbag Sensor Assembly90980±11872
C19Center Airbag Sensor Assembly90980±11867
D1Data Link Connector 1 (1MZ±FE)90980±11195D 1Data Link Connector 1 (5S±FE)90980±11323
D 2Daytime Running Light Resistor90980±10928
D 3Diode (A/C)90980±11071
D 4Data Link Connector 290980±11417
D 5Data Link Connector 390980±11665
D6Daytime Running Light Relay (Main)90980±11058D 6Daytime Running Light Relay (Main)90980±11 058
D7Di d (C t )D7Diode (Courtesy)D 7Diode (Courtesy)90980±10962D10Diode (Dome)90980±10962
D11Diode (Idle±Up)90980±11071
D12Door Courtesy SW Front LH
D13Door Courtesy SW Front RH90980±10871D14Door Courtesy SW Rear LH90980±10871
D15Door Courtesy SW Rear RH
D16Door Key Lock and Unlock SW Front LH90980±11490D17Door Key Lock and Unlock SW Front RH90980±11490
Page 1621 of 4770
INTRODUCTIONGLOSSARY OF SAE AND TOYOTA TERMS ±
IN±6
GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE±J1930 terms and abbreviations used in this manual in compliance with SAE
recommendations, 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: Toyota Diagnosis Communication Link (TDCL)
3: OBD@@@@@: [g 2] 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
MemoryElectrically 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 IgnitionToyota Distributorless Ignition (TDI)
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)
HO2SHeated Oxygen SensorHeated Oxygen Sensor (HO2S)
IN016±02
Page 1791 of 4770
INTRODUCTIONGLOSSARY OF SAE AND TOYOTA TERMS ±
IN±6
GLOSSARY OF SAE AND TOYOTA TERMS
This glossary lists all SAE±J1930 terms and abbreviations used in this manual in compliance with SAE
recommendations, 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: Toyota Diagnosis Communication Link (TDCL)
3: OBD@@@@@: [g 2] 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
MemoryElectrically 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 IgnitionToyota Distributorless Ignition (TDI)
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)
HO2SHeated Oxygen SensorHeated Oxygen Sensor (HO2S)
IN016±02
Page 2438 of 4770
DI±18
± DIAGNOSTICSENGINE (5S±FE)
253 Author: Date:
DTC No.
(See Page)Detection ItemTrouble AreaMIL*1Memory
P0340
(DI±103)Camshaft Position Sensor
Circuit Malfunction
Open or short in camshaft position sensor circuit
Camshaft position sensor
Distributor
Starter
ECM
P0401
(DI±105)Exhaust Gas Recirculation
Flow Insufficient Detected
EGR valve stuck closed
Open or short in VSV circuit for EGR
Vacuum or EGR hose disconnected
Manifold absolute pressure sensor
EGR VSV open or close malfunction
ECM
P0402
(DI±113)Exhaust Gas Recirculation
Flow Excessive Detected
EGR valve stuck open
Vacuum or EGR hose is connected to wrong post
Manifold absolute pressure sensor
ECM
*2
P0420
(DI±116)
Catalyst System Efficiency
Below Threshold
(Except California Spec.)Three±way catalytic converter
Open or short in heated oxygen sensor circuit
Heated oxygen sensor
*3
P0420
(DI±119)
Catalyst System Efficiency
Below Threshold
(Only for California Spec.)
Three±way catalystic converter
Open short in heated oxygen sensor (bank 1 sensor 2) circuit
Heated oxygen sensor (bank 1 sensor 2)
Open or short in A/F sensor circuit
A/F sensor
P0440
(DI±122)Evaporative Emission Control
System Malfunction
Vapor pressure sensor
Fuel tank cap incorrectly installed
Fuel tank cap cracked or damaged
Vacuum hose cracked, holed, blocked, damaged or
disconnected ((1) or (2) in fig. 1)
Hose or tube cracked, holed, damaged or loose seal
((3) in fig. 1)
Fuel tank cracked, holed or damaged
Charcoal canister cracked, holed or damaged
Fuel tank over fill check valve cracked or damaged
P0441
(DI±129)Evaporative Emission Control
System Incorrect Purge Flow
Open or short in VSV circuit for vapor pressure sensor
VSV for vapor pressure sensor
Open or short in vapor pressure sensor circuit
Vapor pressure sensor
O h t i VSV i it f EVAP
P0446
(DI±129)Evaporative Emission Control
System Vent Control
Malfunction
Open or short in VSV circuit for EVAP
VSV for EVAP
Vacuum hose cracks, hole, blocked, damaged or disconnected
((1), (4), (5) holed (6) and (7) in fig. 1)
Charcoal canister cracked, holed or damaged
Fuel tank over fill check valve cracked or damaged
P0450
(DI±142)Evaporative Emission Control
System Pressure Sensor
Malfunction
Open or short in vapor pressure sensor circuit
V
P0451
(DI±142)Evaporative Emission Control
System Pressure Sensor
(Range/performance)Vapor pressure sensor
ECM
*1: MIL lights up
*
2: Except California Specification vehicles
*
3: Only for California Specification vehicles
Page 2441 of 4770
DI1JS±03
A03431
A03430
A03537
Crankshaft
Position
SensorVSV for EGRDLC1Camshaft Position
SensorInjectorECMThrottle Position SensorManifold Absolute
Pressure Sensor
Combination Meter
(Speedometer)
DLC3
Heated Oxygen
Sensor
(Bank 1 Sensor 2)
Intake Air Temp.
Sensor
VSV for EVAP
Idle Air Control
Valve
Ignition Coil (No.1, No.2) Park/Neutral Position
Switch Engine Coolant Temp.
Sensor Heated Oxygen Sensor
(Bank 1 Sensor 1) *1 A/F Sensor *2 Knock
Sensor 1
*1: Except California Specification vehicles
*2: Only for California Specification vehicles
Vapor Pressure Sensor
Charcoal Canister
VSV for
Vapor Pressure Sensor
± DIAGNOSTICSENGINE (5S±FE)
DI±21
256 Author: Date:
PARTS LOCATION
Page 2509 of 4770
± DIAGNOSTICSENGINE (5S±FE)
DI±89
324 Author: Date:
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
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. And
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
P0300Mi fi i f d li d i d t t d d i ti l
Ignition system
Injector
Fuel line pressure
EGR
P0300
P0301
P0302
P0303
P0304
Misfiring of random cylinders is detected during any particular
200 or 1,000 revolutions
For any particular 200 revolutions for engine, misfiring is de-
tected which can cause catalyst overheating
(This causes MIL to blink)
EGR
Compression pressure
Valve clearance not to specification
Valve timing
Manifold absolute pressure sensor
P0304(This causes MIL to blink)Manifold absolute ressure sensor
Engine coolant temp. sensor
Open or short in engine wire
Connector connection
ECM
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.
DI011±07