TOYOTA AVENSIS 2005 Service Repair Manual

A79833N´m (kgf´cm, ft´lbf)
: Specified torqueKnock Sensor
20 (204, 15)
± ENGINE CONTROL SYSTEMKNOCK SENSOR (1AZ±FSE)
10±51
AVENSIS REPAIR MANUAL (RM1018E)

100FJ±01
A78509
A81620
(a)(c)
(c)
(b)
(d)
(f)
(g)
(d)
(h)
Air Cleaner Clamp
A78510
10±44
±
ENGINE CONTROL SYSTEM THROTTLE BODY ASSY(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
REPLACEMENT
1.REMOVE ENGINE ROOM COVER SIDE (See page 10±26)
2.REMOVE RADIATOR SUPPORT OPENING COVER (See page 10±26)
3.DRAIN ENGINE COOLANT (See page 16±31) 4. REMOVE ENGINE COVER SUB±ASSY NO.1
(a) Remove the 2 nuts, and then remove the engine coverNo. 1.
5. REMOVE AIR CLEANER CAP SUB±ASSY
(a) Disconnect the mass air flow meter connector.
(b) Disconnect the VSV connector.
(c) Remove the 2 wire harness clamps.
(d) Disconnect the ventilation hose.
(e) Disconnect the fuel vapor feed hose No. 1.
(f) Disconnect the fuel vapor feed hose No. 2.
(g) Loosen the hose clamp bolt.
(h) Raise the air cleaner clamp up, slide it to the air cleaner cap.
(i) Remove the air cleaner cap together with the air cleaner hose No. 1.
6. REMOVE THROTTLE BODY ASSY
(a) Remove the bolt, and then remove the wire harness pro- tector.

A78511
(b)
A78512
(d)
A78513
(g)
(h)
±
ENGINE CONTROL SYSTEM THROTTLE BODY ASSY(1AZ±FSE)
10±45
AVENSIS REPAIR MANUAL (RM1018E)
(b)Remove the bolt, and then remove the ground terminal.
(c)Remove the 4 bolts, and then remove the throttle body
bracket.
(d)Disconnect the throttle motor connector.
(e)Remove the 4 bolts, and then remove the throttle body.
(f)Remove the gasket from the intake manifold.
(g)Disconnect the water by±pass hose No. 1.
(h)Disconnect the water by±pass hose No. 2.
7.INSTALL THROTTLE BODY ASSY
(a)Connect the water by±pass hose No. 2.
(b)Connect the water by±pass hose No. 1.
(c)Install a new gasket to the intake manifold.
(d)Install the throttle body with the 4 bolts. Torque: 9.0 N
m (90 kgf
cm, 80 in.
lbf)
(e)Connect the throttle motor connector.
(f)Install the throttle body bracket with the 4 bolts. Torque: 21 N
m (210 kgf
cm, 15 ft
lbf)
(g)Install the ground terminal with the bolt. Torque: 8.4 N
m (86 kgf
cm, 74 in.
lbf)
(h)Install the wire harness protector with the bolt. Torque: 8.4 N
m (86 kgf
cm, 74 in.
lbf)
8.INSTALL AIR CLEANER CAP SUB±ASSY Torque: 1.5 N
m (15 kgf
cm, 13 in.
lbf)
9.INSTALL ENGINE COVER SUB±ASSY NO.1 Torque: 7.0 N
m (71 kgf
cm, 62 in.
lbf)
10.ADD ENGINE COOLANT (See page 16±31)
11.CHECK FOR ENGINE COOLANT LEAKS (See page 16±25)
12. INSTALL ENGINE ROOM COVER SIDE

10±46
± ENGINE CONTROL SYSTEMTHROTTLE BODY ASSY (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
13. INSTALL RADIATOR SUPPORT OPENING COVER

100FI±01
A78507
Mass Air Flow
Meter Connector
N´m (kgf´cm, ft´lbf) : Specified torqueEngine Cover Sub±assy
No. 1
7.0 (71, 62 in.
lbf)
Air Cleaner Cap
Sub±assyVSV
Connector Fuel Vapor Feed Hose
Clip
Engine Room Cover Side
Radiator Support Opening Cover
Clip
Retainer
x2
x4
1.5 (15, 13 in.
lbf)
10±42
± ENGINE CONTROL SYSTEMTHROTTLE BODY ASSY (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
THROTTLE BODY ASSY (1AZ±FSE)
COMPONENTS

A78508
Non±reusable part
N´m (kgf´cm, ft´lbf) : Specified torqueThrottle Body AssyThrottle Motor Connector

Throttle Body Gasket
Water By±pass Hose No. 2
Water By±pass Hose No. 1
9.0 (90, 80 in.
lbf)
x4
x4
21 (210, 15)Throttle Body Bracket
8.4 (86, 74 in.
lbf)
Ground Terminal
Wire Harness Protector
8.4 (86, 74 in.
lbf)
± ENGINE CONTROL SYSTEMTHROTTLE BODY ASSY (1AZ±FSE)
10±43
AVENSIS REPAIR MANUAL (RM1018E)

100G9±02
321 4 5
±20
020 40 60
80100 0.1 0.2 0.3 0.51 235 1020 30
TEMPERATURE
C(
F)
RESISTANCE k

(±4) (32) (80) (140)(104) (212)(176)
Air
E2
THAVG
E2G+B
A50378
12
Valve
A50377
A59778
M± M+
± ENGINE CONTROL SYSTEMSFI SYSTEM (1AZ±FSE)
10±39
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT MASS AIR FLOW METER
(a) Output voltage inspection.
(1) Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(2) Using a voltmeter, connect the positive (+) tester
probe to terminal 3 (VG), and negative (±) tester
probe to terminal 2 (E2G).
(3) Blow air into the MAF meter, and check that the volt-
age fluctuates.
(b) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween terminals 4 (THA) and 5 (E2).
Resistance:
TerminalsResistanceTemperature
THA ± E213.6 to 18.4 k
±20
C (±4
F)
THA ± E22.21 to 2.69 k
20
C (68
F)
THA ± E20.49 to 0.67 k
60
C (140
F)
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Resistance: 6.9 to 7.9
at 20
C (68
F)
(b) Movement inspection.
(1) Connect the positive (+) lead from the battery to ter-
minal 1 and negative (±) lead to terminal 2, and
check the movement of the valve.
NOTICE:
Confirm the valve does not adhere.
HINT:
Bad returning of the valve by entrance of foreign objects causes
subtle pressure leak to the advanced direction. Then, DTC can
be detected.
3. INSPECT THROTTLE BODY ASSY
(a) Using an ohmmeter, measure the resistance between the
terminals.
Resistance:
Terminal No.Resistance
2 (M+) ± 1 (M±)0.3 to 100
at 20
C (68
F)

TEMPERATURE
C(
F)
RESISTANCE k
30
20
10
5
2
1
0.5
0.3
0.2
0.13
±20 0 20 40 60 80 100
(±4)(32) (80) (140)(104) (212)
(176)
A50371
A65174
Ohmmeter
E34090
10±40
± ENGINE CONTROL SYSTEMSFI SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
4. INSPECT ENGINE COOLANT TEMPERATURE
SENSOR
(a) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween each terminal.
Resistance:
Approx. 20
C (68
F) 2.32 to 2.59k
Approx. 80
C (176
F) 0.310 to 0.326k
NOTICE:
In case of checking the water temperature sensor in the wa-
ter, be careful not to allow water to go into the terminals,
and after checking, wipe out the sensor.
5. INSPECT KNOCK SENSOR
(a) Using an ohmmeter, measure the resistance between ter-
minals.
Resistance: 120 to 280 kat 20
C (68
F)
HINT:
If the resistance is not specified, replace the sensor.
6. INSPECT EFI RELAY
(a) Inspect the relay continuity.
(1) Using an ohmmeter, check that there is continuity
between terminals 1 and 2.
Specified condition: Continuity
(2) Check that there is no continuity between terminals
3 and 5.
Specified condition: No continuity
(b) Inspect the relay operation.
(1) Apply battery voltage across terminals 1 and 2.
(2) Using an ohmmeter, check that there is continuity
between terminals 3 and 5.
Specified condition: Continuity

E34090
± ENGINE CONTROL SYSTEMSFI SYSTEM (1AZ±FSE)
10±41
AVENSIS REPAIR MANUAL (RM1018E)
7. INSPECT CIRCUIT OPENING RELAY
(a) Inspect the relay continuity.
(1) Using an ohmmeter, check that there is continuity
between terminals 1 and 2.
Specified condition: Continuity
(2) Check that there is no continuity between terminals
3 and 5.
Specified condition: No continuity
(b) Inspect the relay operation.
(1) Apply battery voltage across terminals 1 and 2.
(2) Using an ohmmeter, check that there is continuity
between terminals 3 and 5.
Specified condition: Continuity

100G8±02
A75903
Air
A53763VGEVG
±
ENGINE CONTROL SYSTEM SFI SYSTEM(1AZ±FSE)
10±37
AVENSIS REPAIR MANUAL (RM1018E)
SFI SYSTEM(1AZ±FSE)
ON±VEHICLE INSPECTION
1.INSPECTMASS AIR FLOW METER
(a)If you have hand±held tester:
Inspect for operation
(1)Connect the hand±held tester to the DLC3.
(2)Turn the ignition switch ON.
(3)Blow air into the MAF meter, and check that the airflow fluctuates (MAF ) of the CURRENT DATA
shown the standard value.
If operation is not as specified, check the MAF meter (See page
10±39), wiring and ECM.
(b)If you have no hand±held tester: Inspect for operation
(1)Turn the ignition switch ON.
(2)Connect the positive tester probe of the voltmeterto the terminal VG of the ECM. and the negative tes-
ter probe of the voltmeter to the terminal EVG of the
ECM.
(3)Blow air into the MAF meter, and check that the volt- age fluctuates.
If operation is not as specified, check the MAF meter (See page
10±39), wiring and ECM.