2000 TOYOTA CAMRY Vacuum hose

CO06H±04
Z00570
30° or More
Radiator CapRadiator Cap Tester
B06362
Radiator Cap Tester
± COOLING (5S±FE)RADIATOR
CO±15
1589 Author: Date:
ON±VEHICLE INSPECTION
1. REMOVE RADIATOR CAP
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
2. INSPECT RADIATOR CAP
NOTICE:

If the radiator cap has contaminations, always rinse
it with water.

Before using a radiator cap tester, wet the relief valve
and pressure valve with engine coolant or water.

When performing steps (a) and (b) below, keep the
tester at an angle of over 30° above the horizontal.
(a) Using a radiator cap tester, slowly pump the tester and
check that air is coming from the vacuum valve.
Pump speed: 1 push/(3 seconds or more)
NOTICE:
Push the pump at a constant speed.
If air is not coming from the vacuum valve, replace the radiator
cap.
(b) Pump the tester, and measure the relief valve opening
pressure.
Pump speed: 1 push within 1 second
NOTICE:
This pump speed is for the first pump only (in order to close
the vacuum valve). After this, the pump speed can be re-
duced.
Standard opening pressure:
74 ± 103 kPa (0.75 ± 1.05 kgf/cm
2, 10.7 ± 14.9 psi)
Minimum opening pressure:
59 kPa (0.6 kgf/cm
2, 8.5 psi)
HINT:
Use the tester's maximum reading as the opening pressure.
If the opening pressure is less than minimum, replace the radia-
tor cap.
3. INSPECT COOLING SYSTEM FOR LEAKS
(a) Fill the radiator with coolant, and attach a radiator cap tes-
ter.
(b) Warm up the engine.
(c) Pump it to 118 kPa (1.2 kgf/cm
2, 17.1 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator or water pump
for leaks. If no external leaks are found, check the heater core,
cylinder block and head.
4. REINSTALL RADIATOR CAP

CO03H±03
B06397
MAF Meter Connector
EVAP Hose
Air Cleaner Cap
Assembly
Engine Wire Protector
Thermostat

Gasket
Water Inlet
Water Inlet Pipe

O±Ring
No.2 ECT
Switch
Connector
8 (80, 69 in.´lbf)
19.5 (200, 14)
Air Filter EGR Vacuum Hose
N´m (kgf´cm, ft´lbf)
: Specified torque

Non±reusable part
± COOLING (1MZ±FE)THERMOSTAT
CO±9
1617 Author: Date:
THERMOSTAT
COMPONENTS

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

± DIAGNOSTICSENGINE (5S±FE)
DI±23
258 Author: Date:
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
G
(E9 ± 5) ± NE(E9 ± 17)B ± W e LIdlingPulse generation
(See page DI±100)
NE
(E9 ± 4)
± NE(E9 ± 17)B ± R e LIdlingPulse generation
(See page DI±100)
FC (E7 ± 14) ± E01 (E9 ± 13)G ± R e BR IG switch ON9 ~ 14
EGR (E9 ± 23) ± E01(E9 ± 13)P ± B e BRIG switch ON0 ~ 3
ISCC (E9 ± 9) ± E01 (E9 ± 13)B ± O e BRIG switch ON
Disconnect E9 connector of ECM9 ~ 4
ISCO (E9 ±10) ± E01(E9 ± 13)W e BRIG switch ON
Disconnect E9 connector of ECMBelow 3.0
*1
OX1 (E8 ± 6) ± E1 (E9 ± 14)W e BRMaintain engine speed at 2,500 rpm for 2 min. after
warming upPulse generation
(See page DI±66)
OX2 (E8 ± 5) ± E1 (E9 ± 14)B e BRMaintain engine speed at 2,500 rpm for 2 min. after
warming upPulse generation
*1LYBRIdlingBelow 3.01
HT1 (E9 ± 8) ± E1 (E9 ± 14)L ± Y e BRIG switch ON9 ~ 14
HT2 (E9 21) E1 (E9 14)PBBRIdlingBelow 3.0HT2 (E9 ± 21) ± E1 (E9 ± 14)P ± B e BRIG switch ON9 ~ 14
KNK (E8 ± 13) ± E1 (E9 ± 14)W e BRIdlingPulse generation
(See page DI±97)
*3B ± W e BR
IG switch ON
Other shift position in P or N position9 ~ 143
NSW (E7 ± 22) ± E1 (E9 ± 14)
B W e BR
IG switch ON
Shift position in P or N position0 ~ 3.0
SPD (E7 ± 9) ± E1 (E9 ± 14)V ± W e BRIG switch ON
Rotate driving wheel slowlyPulse generation
(See page DI±145)
TE1 (E8 ± 15) ± E1 (E9 ± 14)L ± W e BRIG switch ON9 ~ 14
W (E7 5) E1 (E9 14)GRBRIdling9 ~ 14W (E7 ± 5) ± E1 (E9 ± 14)G ± R e BRIG switch ONBelow 3.0
EVP (E9 ± 22) ± E1 (E9 ± 14)V ± W e BRIG switch ON9 ~ 14
TPC (E8 ± 8) ± E1 (E9 ± 14)V e BRIG switch ON9 ~ 14
PTNK (E8 ± 7) ± E2 (E8 ± 9)P e BR
IG switch ON, Disconnect vacuum hose from vapor pressure
sensor2.9 ~ 3.7PTNK (E8 7) E2 (E8 9)P e BR
Apply vacuum (less than 66.7 kPa (500 mmHg, 19.7 in.Hg))Below 0.5
*2
AF
(E8 ± 6) ± E1 (E9 ± 14)
W e BRAlways (IG switch ON)3.3 fixed*4
*2
AF (E8 ± 14) ± E1 (E9 ± 14)
O e BRAlways (IG switch ON)3.0 fixed*4
*1: Except California Specification vehicles
*2: Only for California Specification vehicles
*3: Only for A/T models
*4: The ECM terminal voltage is fixed regardless of the output voltage from the sensor.

DI±26
± DIAGNOSTICSENGINE (5S±FE)
261 Author: Date:
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
G
(E10 ± 11) ± NE(E10 ± 6)B ± W e LIdlingPulse generation
(See page DI±100)
NE
(E10 ± 12)
± NE(E10 ± 6)B ± R e LIdlingPulse generation
(See page DI±100)
FC (E7 ± 14) ± E01 (E9 ± 13)G ± R e BR IG switch ON9 ~ 14
EGR (E8 ± 15) ± E01(E9 ± 13)P ± B e BRIG switch ON0 ~ 3
ISCC (E9 ± 6)
± E01 (E9 ± 13)B ± O e BRIG switch ON
Disconnect E9 connector of ECM9 ~ 4
ISCO (E9 ±7) ± E01(E9 ± 13)W e BRIG switch ON
Disconnect E9 connector of ECMBelow 3.0
*1
OX1 (E8 ± 5) ± E1 (E9 ± 24)W e BRMaintain engine speed at 2,500 rpm for 2 min. after
warming upPulse generation
(See page DI±66)
OX2 (E8 ± 13) ± E1 (E9 ± 24)B e BRMaintain engine speed at 2,500 rpm for 2 min. after
warming upPulse generation
*1LYBRIdlingBelow 3.01
HT1 (E9 ± 1) ± E1 (E9 ± 24)L ± Y e BRIG switch ON9 ~ 14
HT2 (E9 14) E1 (E9 24)PBBRIdlingBelow 3.0HT2 (E9 ± 14) ± E1 (E9 ± 24)P ± B e BRIG switch ON9 ~ 14
KNK (E8 ± 12) ± E1 (E9 ± 24)W e BRIdlingPulse generation
(See page DI±97)
*3B ± W e BR
IG switch ON
Other shift position in P or N position9 ~ 143
NSW (E7 ± 22) ± E1 (E9 ± 24)
B W e BR
IG switch ON
Shift position in P or N position0 ~ 3.0
SPD (E7 ± 8) ± E1 (E9 ± 24)V ± W e BRIG switch ON
Rotate driving wheel slowlyPulse generation
(See page DI±145)
TE1 (E8 ± 7) ± E1 (E9 ± 24)L ± W e BRIG switch ON9 ~ 14
W (E7 4) E1 (E9 24)GRBRIdling9 ~ 14W (E7 ± 4) ± E1 (E9 ± 24)G ± R e BRIG switch ONBelow 3.0
EVP (E9 ± 3) ± E1 (E9 ± 24)V ± W e BRIG switch ON9 ~ 14
TPC (E8 ± 16) ± E1 (E9 ± 24)V e BRIG switch ON9 ~ 14
PTNK (E8 ± 8) ± E2 (E8 ± 9)P e BR
IG switch ON, Disconnect vacuum hose from vapor pressure
sensor2.9 ~ 3.7PTNK (E8 8) E2 (E8 9)P e BR
Apply vacuum (less than 66.7 kPa (500 mmHg, 19.7 in.Hg))Below 0.5
*2
AF
(E8 ± 6) ± E1 (E9 ± 24)W e BRAlways (IG switch ON)3.3 fixed*4
*2
AF (E8 ± 14) ± E1 (E9 ± 24)
O e BRAlways (IG switch ON)3.0 fixed*4
*1: Except California Specification vehicles
*2: Only for California Specification vehicles
*3: Only for A/T models
*4: The ECM terminal voltage is fixed regardless of the output voltage from the sensor.

DI±92
± DIAGNOSTICSENGINE (5S±FE)
327 Author: Date:
INSPECTION PROCEDURE
HINT:

If is the case that DTC besides misfire is memorized simultaneously, first perform the troubleshooting
for them.

Read freeze frame data using TOYOTA hand±held tester or OBD II scan tool. Because freeze frame
data records the engine conditions when the malfunction is detected, when troubleshooting it is useful
for determining whether the vehicle was running or stopped, the engine warmed up or not, the air±fuel
ratio lean or rich, etc. at the time of the malfunction.

When the vehicle is brought to the workshop and the misfire is not occurred, misfire can be confirmed
by reproducing the condition or freeze frame data. Also, after finishing the repair, confirm that there
is no misfire. (See the confirmation driving pattern)

When either of SHORT FT #1, LONG FT #1, SHORT FT #2 or LONG FT #2 in the freeze frame data
is besides the range of ±20%, there is a possibility that the air±fuel ratio is inclining either to ºrichº
(±20% or less) or ºleanº (+20% or more).

When COOLANT TEMP in the freeze frame data is less than 80°C (176°F), there is a possibility or
misfire only during warming up.

In the case that misfire cannot be reproduced, the reason may be because of the driving with lack or
fuel, the use of improper fuel, a stain of ignition plug, and etc.
1 Check wire harness, connector and vacuum hose in engine room.
CHECK:
(a) Check the connection conditions of the wire harness and connector.
(b) Check the disconnection, piping and break of the vacuum hose.
NG Repair or replace, then confirm that there is no
misfire (See the confirmation driving pattern).
OK

P25430
ECM
Throttle Body
EGR
Vacuum
Modulator EGR Valve
VSV
Exhaust Gas Throttle
Valve
u
± DIAGNOSTICSENGINE (5S±FE)
DI±105
340 Author: Date:
DTC P0401 Exhaust Gas Recirculation Flow Insufficient
Detected
CIRCUIT DESCRIPTION
The EGR system recirculates exhaust gas, which is controlled to the proper quantity to suit the driving condi-
tions, into the intake air mixture to slow down combustion, reduce the combustion temperature and reduce
NOx emissions. The amount of EGR is regulated by the EGR vacuum modulator according to the engine
load.
If even one of the following conditions is fulfilled, the VSV is
turned ON by a signal from the ECM.
This results in atmospheric air acting on the EGR valve, closing
the EGR valve and shutting off the exhaust gas (EGR cut±off).
Under the following conditions, EGR is cut to maintain driveabil-
ity.

Before engine is warmed up.

During deceleration (throttle valve closed).

Light engine load (amount of intake air very small).

Engine idling.

Engine speed over 4,400 rpm.

High engine load (amount of intake air very large).
DTC No.DTC Detecting ConditionTrouble Area
P0401
After engine is warmed up, intake manifold absolute pressure
is larger than value calculated by ECM while EGR system is
ON
(2 trip detection logic)

EGR valve stuck closed

Open or short in VSV circuit for EGR

Vacuum or EGR hose disconnected

Manifold absolute pressure sensor

VSV for EGR open or close malfunction

ECM
DI015±05

A00407
Air
Air FilterAir
E
System: OFFSystem: ON GG E
DI±108
± DIAGNOSTICSENGINE (5S±FE)
343 Author: Date:
TOYOTA hand±held tester:
1 Check connection of the vacuum hose and EGR hose (See page EC±12).
NG Repair or replace.
OK
2 Check VSV for EGR.
PREPARATION:
(a) Connect the TOYOTA hand±held tester to the DLC3.
(b) Turn the ignition switch ON and push the TOYOTA hand±
held tester main switch ON.
(c) Select the ACTIVE TEST mode on the TOYOTA hand±
held tester.
CHECK:
Check operation of the VSV when it is operated by the TOYOTA
hand±held tester.
OK:
EGR system is OFF:
Air from port E is flowing out through the air filter.
EGR system is ON:
Air from port E is flowing out port G.
OK Go to step 4.
NG
3 Check operation of the VSV for EGR (See page SF±43).
NG Replace VSV for EGR.
OK
Check for open and short in harness and con-
nector between engine room J/B No.2 and
ECM (See page IN±31).