TOYOTA AVENSIS 2002 Repair Manual

B11449
12±12
± EMISSION CONTROLEMISSION CONTROL SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
4. VISUALLY INSPECT HOSES, CONNECTIONS AND
GASKETS
(a) Check for cracks, leaks or damage.

1203V±03
B08075
12±16
± EMISSION CONTROLEMISSION CONTROL SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
EMISSION CONTROL SYSTEM (1CD±FTV)
ON±VEHICLE INSPECTION
1. VISUALLY INSPECT HOSES, CONNECTIONS AND
GASKETS
(a) Check for cracks, leak or damage.
HINT:
Separation of the engine oil dipstick, oil filler cap, PCV hose,
etc. may cause the engine to run improperly. Disconnection,
looseness or cracks in the parts of the air induction system be-
tween the throttle body and cylinder head will allow air suction
and cause the engine to run improperly.

1209D±02
A62250
Port A
Port BPort C
A77115
Ohmmeter
Resistance
A77116
Ohmmeter
No continuity
A77117
Air E F
± EMISSION CONTROLEMISSION CONTROL SYSTEM (1ZZ±FE/3ZZ±FE)
12±3
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT CHARCOAL CANISTER ASSY
(a) Inspect charcoal canister operation.
(1) Check the charcoal canister operation according to
the table below.
SST 09992±00242
Inspection:
Checking methodResult
Close ports B and C, then apply vacuum
to port ANo leaks
Close port C, then apply vacuum to port
AAir flows from port B
Close port C, then blow air into port AAir flows from port B
Blow air into port AAir flows from ports B and C
2. INSPECT VACUUM SWITCHING VALVE ASSY NO.1
(a) Inspect VSV for open circuit.
(1) Using an ohmmeter, measure resistance between
the terminals.
Resistance: 26 to 30
at 20
C (68
F)
If the resistance is not as specified, replace the VSV.
(b) Inspect the VSV for ground.
(1) Using an ohmmeter, check that there is no continu-
ity between each terminal and the body.
If there is continuity, replace the VSV.
(c) Inspect the VSV operation.
(1) Check that air flows with a little difficulty from port E
to port F.

A77118
Air E
F
Battery
A60562
Cylinder Head Side
A60563
Intake Manifold Side
A64543
+B
Bank 1 Sensor 1:
HT1A
E1
A77126
HT +B
Bank 1 Sensor 2:
E1 12±4
± EMISSION CONTROLEMISSION CONTROL SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
(2) Apply battery voltage across the terminals.
(3) Check that air flows from port E to port F.
If operation is not as specified, replace the VSV.
3. INSPECT VENTILATION VALVE SUB±ASSY
(a) Blow air into the cylinder head side, and check that air
passes through easily.
CAUTION:
Do not suck air through the valve. If contains petroleum
substances and is harmful.
(b) Blow air into the intake manifold side, and check that air
passes through with difficulty.
HINT:
If operation is not as specified, replace the PCV valve.
4. IINSPECT HEATED OXYGEN SENSOR
(a) Bank 1 Sensor 1:
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Resistance:
Terminal No.Resistance
1 (HT1A) ± 2 (+B)5 to 10
at 20
C (68
F)
1 (HT1A) ± 4 (E1)No Continuity
If the resistance is not as specified, replace the sensor.
(b) Bank 1 Sensor 2:
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Resistance:
Terminal No.Resistance
1 (HT) ± 2 (+B)11 to 16
at 20
C (68
F)
1 (HT) ± 4 (E1)No Continuity
If the resistance is not as specified, replace the sensor.

B04812
Gasket
± EMISSION CONTROLEMISSION CONTROL SYSTEM (1ZZ±FE/3ZZ±FE)
12±5
AVENSIS REPAIR MANUAL (RM1018E)
5. INSPECT FUEL TANK CAP ASSY
(a) Visually check if the cap or gasket is deformed or dam-
aged.

1209C±02
A65749
E1
OX1AOX1B
ECM
A66059
± EMISSION CONTROLEMISSION CONTROL SYSTEM (1ZZ±FE/3ZZ±FE)
12±1
AVENSIS REPAIR MANUAL (RM1018E)
EMISSION CONTROL SYSTEM (1ZZ±FE/3ZZ±FE)
ON±VEHICLE INSPECTION
1. INSPECT AIR±FUEL RATIO COMPENSATION SYS-
TEM
HINT:
You can also check the system by choosing ºDATA MONITOR/
O
2 SENSOR OUTPUT VOLTAGEº on the monitor of the hand±
held tester.
(a) Connect the hand±held tester to the terminals 21 (OX1B)
and 7 (E1) and to terminals 23 (OX1A) and 7 (E1) of the
ECM.
CAUTION:
Connect test leads from the back side of the connector with
the ECM connected.
(b) Warm up the heated oxygen sensor with the engine
speed at 2,500 rpm for approximately 2 minutes.
(c) Confirm that the voltage varies output between 0V to 1V
with the engine speed at 2,500 rpm.
OK:
The voltage output varies more than 8 times in 10 se-
conds.
CAUTION:

Perform the check immediately after the warming up.

If the voltage variation could not be verified, warm up
the heated oxygen sensor again.
2. INSPECT FUEL CUT OFF RPM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating sounds.
(c) Check that injector operating sounds stops momentarily and then resumes when the throttle lever is
released.
3. INSPECT EVAPORATIVE EMISSION CONTROL SYS-
TEM
(a) After starting the engine, disconnect the vacuum hose
shown in the illustration.
(b) Check if vacuum occurs at the VSV port when choosing
ºACTIVE TESTº and ºPURGE VSVº according to the dis-
play on hand±held tester.
(c) Finish ºACTIVE TESTº, then reconnect the vacuum.
(d) After entering to ºECU DATA MONITORº on the hand±
held tester, choose ºPURGE VSVº to check the operation
of the purge VSV.
(e) After driving the vehicle with a warm engine, confirm that
the VSV turns from off to on.

A62836
1ZZ±FE
3ZZ±FE
12±2
± EMISSION CONTROLEMISSION CONTROL SYSTEM (1ZZ±FE/3ZZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
4. VISUALLY INSPECT HOSES, CONNECTIONS AND
GASKETS
(a) Check for cracks, leaks or damage.
HINT:
Separation of the engine oil dipstick, oil filler cap, PCV hose,
etc. may cause the engine to run improperly. Disconnection,
looseness or cracks in the parts of the air induction system be-
tween the throttle body and cylinder head will allow air suction
and cause the engine to run improperly.

100FM±02
A78489
A78490
10±66
± ENGINE CONTROL SYSTEMACCELERATOR PEDAL ASSY (1AZ±FSE/1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
ACCELERATOR PEDAL ASSY (1AZ±FSE/1CD±FTV)
REPLACEMENT
1. REMOVE ACCELERATOR PEDAL
(a) Using a clip remover, remove the clip.
(b) Open the floor carpet.
(c) Disconnect the accelerator position sensor connector.
(d) Remove the 2 bolts, and then remove the accelerator
pedal.
2. INSTALL ACCELERATOR PEDAL
Torque: 5.4 N
m (55 kgf
cm, 48 in.
lbf)

100FP±01
A79139
A79141
± ENGINE CONTROL SYSTEMCAMSHAFT POSITION SENSOR (1CD±FTV)
10±63
AVENSIS REPAIR MANUAL (RM1018E)
CAMSHAFT POSITION SENSOR (1CD±FTV)
REPLACEMENT
1. SEPARATE RETURN TUBE SUB±ASSY
(a) Remove the bolt and separate the return tube sub±assy.
2. REMOVE CAMSHAFT POSITION SENSOR
(a) Remove the bolt and disconnect the wire harness.
(b) Disconnect the connector, remove the bolt and the cam-
shaft position sensor.
3. INSTALL CAMSHAFT POSITION SENSOR
Torque:
8.8 N
m (90 kgf
cm, 79 in.
lbf) for camshaft position sensor
5.0 N
m (51 kgf
cm, 44 in.
lbf) for wire harness
4. INSTALL RETURN TUBE SUB±ASSY
Torque: 9.0 N
m (92 kgf
cm, 80 in.
lbf)

100FQ±01
A79142
10±64
± ENGINE CONTROL SYSTEMCRANKSHAFT POSITION SENSOR (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
CRANKSHAFT POSITION SENSOR (1CD±FTV)
REPLACEMENT
1. REMOVE ENGINE UNDER COVER RH
2. REMOVE CRANKSHAFT POSITION SENSOR
(a) Disconnect the connector, remove the bolt and the crank-
shaft position sensor.
3. INSTALL CRANKSHAFT POSITION SENSOR
Torque: 8.8 N
m (90 kgf
cm, 78 in.
lbf)