TOYOTA CAMRY 2000 Service Repair Manual

± DIAGNOSTICSENGINE (5S±FE)
DI±131
366 Author: Date:
1 Check VSV connector for EVAP, VSV connector for vapor pressure sensor and
vapor pressure sensor connector for looseness and disconnection.
NG Repair or connect VSV or sensor connector.
OK
2 Check vacuum hoses (1), (4), (5), (6), (7), (8) and (9) on page DI±122).
CHECK:
(a) Check that the vacuum hose is connected correctly.
(b) Check the vacuum hose for looseness and disconnection.
(c) Check the vacuum hose for cracks, hole, damage and blockage.
NG Repair or replace.
OK
3 Check voltage between terminals VC and E2 of ECM connector
(See page DI±122, step 9).
NG Check and replace ECM (See page IN±31).
OK
4 Check voltage between terminals PTNK and E2 of ECM connector
(See page DI±122, step 10).
OK Go to step 6.
NG

A03278A03279A03456
VSV is ON
VSV is OFFTo
Suction
No SuctionThrottle
Body
To
Throttle
Body
DI±132
± DIAGNOSTICSENGINE (5S±FE)
367 Author: Date:
5 Check for open and short in harness and connector between vapor pressure
sensor and ECM (See page IN±31).
NG Repair or replace harness or connector.
OK
Replace vapor pressure sensor.
6 Check purge flow.
PREPARATION:
(a) Connect the TOYOTA hand±held tester to the DLC3.
(b) Select the ACTIVE TEST mode on the TOYOTA hand±
held tester.
(c) Disconnect the vacuum hose for the VSV for EVAP from
the charcoal canister.
(d) Start the engine.
CHECK:
When the VSV for EVAP is operated by the TOYOTA hand±
held tester, check whether the disconnected hose applies suc-
tion to your finger.
OK:
VSV is ON:
Disconnected hose applies suction to your finger.
VSV is OFF:
Disconnected hose applies no suction to your finger.
OK Go to step 10.
NG

± DIAGNOSTICSENGINE (5S±FE)
DI±133
368 Author: Date:
7 Check vacuum hose between intake manifold and VSV for EVAP, and VSV for
EVAP and charcoal canister.
CHECK:
(a) Check that the vacuum hose is connected correctly.
(b) Check the vacuum hose for looseness and disconnection.
(c) Check the vacuum hose for cracks, hole, damage and blockage.
NG Repair or replace.
OK
8 Check operation of VSV for EVAP (See page SF±45).
OK Go to step 9.
NG
Replace VSV, charcoal canister and then clean the vacuum hose between throttle body and VSV
for EVAP, and VSV for EVAP and charcoal canister.
9 Check for open and short in harness and connector between EFI main relay
(Marking: EFI) and VSV for EVAP, and VSV for EVAP and ECM
(See page IN±31).
NG Repair or replace harness or connector.
OK
Check and replace ECM (See page IN±31).

A00472
ON
FE
G
FE
G
VSV is ON
VSV is OFF
DI±134
± DIAGNOSTICSENGINE (5S±FE)
369 Author: Date:
10 Check the VSV for vapor pressure sensor.
PREPARATION:
(a) Connect the TOYOTA hand±held tester to the DLC3.
(b) Turn the ignition switch ON and push the OBD II scan tool
or TOYOTA hand±held tester main switch ON.
(c) Select the ACTIVE TEST mode on the TOYOTA hand±
held tester.
CHECK:
Check the VSV operation when it is operated by TOYOTA
hand±held tester.
OK:
(1) VSV is ON:
Air from port E is flowing out through port F.
(2) VSV is OFF:
Air from port E is flowing out through port G.
OK Go to step 13.
NG
11 Check operation of VSV for vapor pressure sensor (See page SF±47).
OK Gp to step 12.
NG
Replace VSV charcoal canister, and then clean the vacuum hoses between charcoal canister and
VSV for vapor pressure sensor, and VSV for vapor pressure sensor and vapor pressure sensor.

A03018
A03280
A03421
VSV Connector for
PTNK (+)
E2 (±)
E2 (±) w/o Immobiliser
w/ Immobiliser
PTNK (+)
Vapor Pressure Sensor
± DIAGNOSTICSENGINE (5S±FE)
DI±135
370 Author: Date:
12 Check for open and short in harness and connector between EFI main relay
(Marking: EFI) and VSV for vapor pressure sensor, and VSV for vapor pressure
sensor and ECM (See page IN±31).
NG Repair or replace harness or connector.
OK
Check and replace ECM (See page IN±31).
13 When VSV connector for vapor pressure sensor is disconnected and VSV for
EVAP is ON, measure voltage between terminals PTNK and E2 of ECM connector.
PREPARATION:
(a) Remove the glove compartment (See page SF±64).
(b) Connect the TOYOTA hand±held tester to the DLC3.
(c) Disconnect the VSV connector for the vapor pressure
sensor.
(d) Select the ACTIVE TEST mode on the TOYOTA hand±
held tester.
(e) Start the engine.
CHECK:
Measure voltage between terminals PTNK and E2 of the ECM
connector using the TOYOTA hand±held tester when the VSV
for the EVAP is ON.
OK:
Voltage: 2.0 V or less
OK Go to step 15.
NG

A03018A03422
ON EngineStart
Stop
VSV for Vapor
Pressure
Sensor
OFFOFF
ON
VSV for
EVAP
5 sec. 5 sec.
PTNK
(+)E2
(±) w/o Immobiliser
w/ Immobiliser
PTNK (+) E2(±)
DI±136
± DIAGNOSTICSENGINE (5S±FE)
371 Author: Date:
14 Check vacuum hoses between charcoal canister and VSV for vapor pressure
sensor, and vapor pressure sensor and VSV for vapor pressure sensor.
CHECK:
(a) Check that the vacuum hose is connected correctly.
(b) Check the vacuum hose for looseness and disconnection.
(c) Check the vacuum hose for cracks, hole, damage and blockage.
NG Repair or replace.
OK
15 Check the charcoal canister.
PREPARATION:
(a) Remove the glove compartment (See page SF±64).
(b) Connect the TOYOTA hand±held tester to the DLC3.
(c) Remove the fuel tank cap.
(d) Disconnect the VSV connector for the vapor pressure
sensor.
(e) Select the ACTIVE TEST mode on the TOYOTA hand±
held tester.
(f) Start the engine.
(g) The VSV for the EVAP is ON by the TOYOTA hand±held
tester and remains on for 5 sec.
CHECK:
Measure voltage between terminals PTNK and E2 of the ECM
connector 5 sec. after switching the VSV for the EVAP from ON
to OFF.
OK:
Voltage: 2.5 V or less
NG Replace charcoal canister.
OK

± DIAGNOSTICSENGINE (5S±FE)
DI±137
372 Author: Date:
16 Remove charcoal canister and check it (See page EC±5)
NG Replace charcoal canister.
OK
17 Check fuel tank over fill check valve (See page EC±6).
NG Replace fuel tank over fill check valve or fuel
tank.
OK
Check and replace ECM (See page IN±31).
OBD II scan tool (excluding TOYOTA hand±held tester):
HINT:
If DTC P0441 (Evaporative Emission Control System Incorrect Purge Flow), P0446 (Evaporative Emission
Control System Vent Control Malfunction) or P0450 (Evaporative Emission Control System Pressure Sensor
Malfunction) is output after DTC P0440 (Evaporative Emission Control System Malfunction), first trouble-
shoot DTC P0441, P0446 or P0450. If no malfunction is detected, troubleshoot DTC P0440 next.
1 Check VSV connector for EVAP, VSV connector for vapor pressure sensor and
vapor pressure sensor connector for looseness and disconnection.
NG Repair or connect VSV or sensor connector.
OK

DI±138
± DIAGNOSTICSENGINE (5S±FE)
373 Author: Date:
2 Check vacuum hoses ((1), (4), (5), (6), (7), (8) and (9) on page DI±122).
CHECK:
(a) Check that the vacuum hose is connected correctly.
(b) Check the vacuum hose for looseness and disconnection.
(c) Check the vacuum hose for cracks, hole, damage and blockage.
NG Repair or replace.
OK
3 Check voltage between terminals VC and E2 of ECM connector
(See page DI±122, step 9).
NG Check and replace ECM (See page IN±31).
OK
4 Check voltage between terminals PTNK and E2 of ECM connector
(See page DI±122, step 10).
OK Go to step 6.
NG
5 Check for open and short in harness and connector between vapor pressure
sensor and ECM (See page IN±31).
NG Repair or replace harness or connector.
OK
Replace vapor pressure sensor.

A03019A03423
EVPON
ON
OFF
E
E
F
VSV is ON
VSV is OFF w/o Immobiliser
w/ Immobiliser
ON
OFF
FE EVP
± DIAGNOSTICSENGINE (5S±FE)
DI±139
374 Author: Date:
6 Check VSV for EVAP.
PREPARATION:
(a) Remove the glove compartment (See page SF±64).
(b) Turn the ignition switch ON.
CHECK:
Check VSV function.
(1) Connect between terminal EVP of the ECM con-
nector and body ground (ON).
(2) Disconnect between terminal EVP of the ECM con-
nector and body ground (OFF).
OK:
(1) VSV is ON:
Air from port E is flowing out through port F.
(2) VSV is OFF:
Air does not flow from port E to port F.
OK Go to step 8.
NG
7 Check operator of VSV for EVAP (See page SF±45).
NG Go to step 9.
OK
Replace VSV and clean vacuum hoses between throttle body and VSV for EVAP, and VSV for
EVAP and charcoal canister, and then check charcoal canister.

A03020A03424
ON
OFF
ONTPC
E
G
FFE
G
VSV is ON
VSV is OFF OFFONTPC
w/o Immobiliser
w/ Immobiliser
DI±140
± DIAGNOSTICSENGINE (5S±FE)
375 Author: Date:
8 Check for open and short in harness and connector between EFI main relay
(Marking: EFI) and VSV for EVAP, and VSV for EVAP and ECM (See page IN±31)
NG Repair or replace harness or connector.
OK
Check and replace ECM (See page IN±31).
9 Check VSV for vapor pressure sensor.
PREPARATION:
(a) Remove the glove compartment (See page SF±64).
(b) Turn the ignition switch ON.
CHECK:
(a) Connect between terminal TPC of the ECM connector
and body ground (ON).
(b) Disconnect between terminal TPC of the ECM connector
and body ground (OFF).
OK:
(1) VSV is ON:
Air from port E is flowing out through port F.
(2) VSV is OFF:
Air from port E is flowing out through port G.
OK Check and replace charcoal canister
(See page EC±6).
NG