low oil pressure TOYOTA AVENSIS 2003 Service Repair Manual

022KF±01
±
PREPARATION FRONT SUSPENSION
02±25
AVENSIS REPAIR MANUAL (RM1018E)
FRONT SUSPENSION
PREPARATION
SST
09628±62011Boll Joint PullerLOWER BALL JOINT ASSY FRONT
LH
STABILIZER BAR FRONT
FRONT SUSPENSION ARM
SUB±ASSY LOWER NO.1 LH(ATM)
09727±30021Coil Spring CompressorFRONT SHOCK ABSORBER WITH
COIL SPRING
09729±22031Front Spring Upper Seat HolderFRONT SHOCK ABSORBER WITH
COIL SPRING
09930±00010Drive Shaft Nut ChiselLOWER BALL JOINT ASSY FRONT
LH
Recomended Tools
09011±12301Socket Wrench 30 mmLOWER BALL JOINT ASSY FRONT
LH
09040±00011Hexagon Wrench SetFRONT SHOCK ABSORBER WITH
COIL SPRING
STABILIZER BAR FRONT
FRONT SUSPENSION ARM
SUB±ASSY LOWER NO.1 LH(ATM)
FRONT SUSPENSION ARM
SUB±ASSY LOWER NO.1 LH(MTM)
(09043±20060)Socket Hexagon Wrench 6FRONT SHOCK ABSORBER WITH
COIL SPRING
STABILIZER BAR FRONT
FRONT SUSPENSION ARM
SUB±ASSY LOWER NO.1 LH(ATM)
FRONT SUSPENSION ARM
SUB±ASSY LOWER NO.1 LH(MTM)
Equipment
Torque wrench
Dial indicator with magnetic base
Tire pressure gauge
Alignment tester
Toe±in gauge
Angle gauge
Camber±caster±kingpin gauge
Engine Sling Device
Drill
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031DY±01
03±4
±
SERVICE SPECIFICATIONS ENGINE CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
ENGINE CONTROL SYSTEM
SERVICE DATA
1ZZ±FE/3ZZ±FE:
Power steering oil pressure switch
Voltage EMPS ± E2 Not spin the steering wheel at engine idling
Spin the steering wheel at engine idling
8 to 14 V
0 to 1.5 V
Idle air control valve
Movement Ignition switch ON
Half open  fully close  fully open  half open
Mass air flow meter
Resistance 4 (THA) ± 5 (E2)
at ±20
C (±4
F)
at 20
C (68
F)
at 60
C (140
F)
13.6 to 18.4 k

2.21 to .69 k

0.49 to 0.67 k

Camshaft timing oil control valve assy
Resistance at 20
C (68
F)
6.9 to 7.9

Throttle position sensor
Resistance VC ± E2
2.5 to 6.0 k

E.F.I. Engine coolant temperature sensor
Resistance Approx. 20
C (68
F)
Approx. 80
C (176
F)
2.32 to 2.59 k

0.310 to 0.326 k

Knock control sensor
Resistance Approx. 20
C (68
F)
120 to 280 k

1AZ±FE/1AZ±FSE:
Power steering oil pressure switch
Voltage PSW ± E2
Not spin the steering wheel at engine idling
Spin the steering wheel at engine idling
9 to 14 V
0 to 3 V
Idle air control valve
Movement Ignition switch ON
Half open  fully close  fully open  half open
Throttle body assy (1AZ±FSE)
Throttle valve opening percentage
Idle speed
60 % or more
700  50 rpm
Accelerator pedal position sensor (1AZ±FSE)
Voltage ACCEL POS Released
Depress
ACCEL POS #2 Released Depress
0.5 to 1.1 V
2.6 to 4.5 V
1.2 to 2.0 V
3.4 to 5.3 V
Mass air flow meter
Resistance 4 (THA) ± 5 (E2) at ±20
C (±4
F)
at 20
C (68
F)
at 60
C (140
F)
13.6 to 18.4 k

2.21 to .69 k

0.49 to 0.67 k

Camshaft timing oil control valve assy
Resistance at 20
C (68
F)
6.9 to 7.9

Throttle position sensor (1AZ±FE)
Resistance VC ± E2
2.5 to 5.0 k

Throttle body assy (1AZ±FSE)
Resistance 2 (M+) ± 1 (M±)
0.3 to 100
at 20
C (68
F)
E.F.I. Engine coolant temperature sensor
Resistance Approx. 20
C (68
F)
Approx. 80
C (176
F)
2.32 to 2.59 k

0.310 to 0.326 k

Knock control sensor
Resistance Approx. 20
C (68
F)
120 to 280 k

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03±18
±
SERVICE SPECIFICATIONS ENGINE MECHANICAL
AVENSIS REPAIR MANUAL (RM1018E) Part Tightened
ft
lbf
kgf
cm
N
m
Knock sensor x Cylinder block2020815
Engine oil pressure switch assy x Cylinder head1515311
Water by±pass pipe No.1 x Cylinder block9.09280 in.
lbf
Drive shaft bearing bracket x Cylinder block5455140
Oil level gauge guide x Cylinder block9.09280 in.
lbf
V±ribbed belt tensioner assy x Timing chain cover6060744
Ignition coil assy x Cylinder head9.09280 in.
lbf
Water inlet x Cylinder block9.09280 in.
lbf
Exhaust manifold converter x Cylinder head3737827
Exhaust manifold stay x Exhaust manifold converter4444932
Manifold converter insulator No. 1 x Exhaust manifold converter121229
Surge tank stay No. 1 x Intake manifold2121015
Intake manifold x Cylinder head3030622
Throttle Body bracket x Throttle body2121015
Fly wheel (M/T) x Crank shaft1301,32796
Drive plate & ring gear (A/T) x Crankshaft981,00072
Transverse engine engine mounting bracket front x Transverse engine en-
gine mounting insulator front8788764
Transverse engine engine mounting bracket rear x Transverse engine engine
mounting insulator rear8788764
Front suspension cross member sub±assy front x Body Front
Rear45
133459
1,35633
98
Front suspension brace RH x Frame Bolt A
Bolt B133 801,356 81698
59
Front suspension brace LH x Frame Bolt A
Bolt B133
801,356 81698
59
Transverse engine engine mounting insulator LH x Engine mounting bracket
LH8788764
Transverse engine engine mounting insulator RH x Engine mounting bracket
RH5253038
Engine mounting bracket x No, 2 RH x Transverse engine
engine mounting insulator A B
52
11 3530
1,15238
83
Clutch release cylinder x manual transaxle Bolt A
Bolt B
Bolt C12
9.0
5.0122 92
5189
80 in.
lbf
44 in.
lbf
Vane pump assy x Timing chain cover4343931
Front suspension arm sub±assy lower No. 1 x Lower ball joint1271,29694
Front stabilizer link assy x Front suspension7475555
Floor panel brace front x Floor3030622
Engine service cover bracket RH x Body RHD steering position type9.09280 in.
lbf
Cooler bracket x Body LHD steering position type9.09280 in.
lbf
Oil reservoir bracket No. 1 x Body8.08271 in.
lbf
Return tube sub±assy x Frame8.08271 in.
lbf
Radiator reserve tank x sub±assy x body5.05144 in.
lbf
Compressor and magnetic clutch x Cylinder block2525518
Radiator relay block x Frame5.05144 in.
lbf
Engine cover No. 1 x Cylinder head cover7.07162 in.
lbf
Air cleaner assy x Body5.05144 in.
lbf
Cylinder head x Cylinder block 1st
2nd79
Turn 90
806
Turn 90
58
Turn 90

Camshaft timing control valve assy x Cylinder head9.09280 in.
lbf
Camshaft timing gear assy x Camshaft5455140
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0313B±05
03±34
±
SERVICE SPECIFICATIONS FRONT SUSPENSION
AVENSIS REPAIR MANUAL (RM1018E)
FRONT SUSPENSION
SERVICE DATA
Vehicle height
(Normal package) Front: A *1 ± B *2
Rear: D *4 ± C *3
(Rough road package) Front: A *1
± B *2
Rear: D *4 ± C *3
92 mm (3.62 in.)
61 mm (2.40 in.)
72 mm (2.83 in.)
41 mm (1.61 in.)
Toe±in (total)
Rack end length difference0
06'
12' (0.1

0.2
), 1
2 mm (0.04
0.08 in.)
1.5 mm (0.059 in.) or less
Wheel angle
[Electric motor power steering]
(Normal package) Inside wheel Outside wheel: Reference
(Rough road package) Inside wheel Outside wheel: Reference
\b\f
17'  2
\b\f\f
 

32
52' \b\f

\b\f
42'  2
\b\f
 

33
16' \b\b

Front wheel align-
ment
Wheel angle
[Oil pressure power steering]
(Normal package) Inside wheel
Outside wheel: Reference
(Rough road package) Inside wheel Outside wheel: Reference
\b
47'  2
\b \f
 

31
15' \b

\b
09'  2
\b

 

31
38' \b
\b

Camber
Normal package
Rough road package
Right±left error
±0
34'  45' (±0.57
 0.75
)
±0
19'  45' (±0.32
 0.75
)
45' (0.75
) or less
Caster
Normal package
Rough road package
Right±left error

54'  45' (2.90
 0.75
)

40'  45' (2.67
 0.75
)
45' (0.75
) or less
Steering axis inclination
Normal package
Rough road package
Right±left error
12
27'  45' (12.45
 0.75
)
11
56'  45' (11.93
 0.75
)
45' (0.75
) or less
Front suspensionLower ball joint turning torque0.98 ± 4.9 N´m (10 ± 50 kgf´cm, 9 ± 43 in.´lbf)Front suspensionStabilizer bar link ball joint turning torque0.05 ± 1.96 N´m (0.5 ± 20 kgf´cm, 0.4 ± 17 in.´lbf)
*1: Ground clearance of front wheel center
*2: Ground clearance of lower suspension arm front bolt center
*3: Ground clearance of toe control arm inner bolt center
*4: Ground clearance of rear wheel center
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030G7±04
03±60
±
SERVICE SPECIFICATIONS POWER STEERING
AVENSIS REPAIR MANUAL (RM1018E)
TORQUE SPECIFICATION
Part tightenedN
mkgf
cmft
lbf
VANE PUMP ASSY (AZ Series)
Vane pump housing sub±assy rear x Vane pump housing sub±assy front2222416
Power steering oil pressure switch2121415
Pressure port union sub±assy6970451
Power steering suction port union set bolt121229
Vane pump assy x Pump bracket rear4444932
Vane pump assy set bolt26 (37)264 (377)19 (27)
Pressure feed tube assy x Vane pump assy5252538
Pressure feed tube assy clamp set bolt8.08271 in.
lbf
VANE PUMP ASSY (1CD±FTV)
Vane pump housing sub±assy rear x Vane pump housing sub±assy front2222416
Pressure port union sub±assy6970451
Power steering suction port union set bolt121229
Vane pump assy set bolt Bolt A:
Bolt B:72
39734
39853
29
Pressure feed tube assy x Vane pump assy41 (44.1)414 (450)30 (33)
Pressure feed tube assy clamp set bolt8.08271 in.
lbf
STEERING GEAR ASSY
Engine hanger set bolt3838728
Steering rack x Steering rack end sub±assy60 (83.5)616 (851)45 (62)
Tie rod end sub±assy lock nut7475054
Steering gear assy set bolt4950036
Steering intermediate shaft x Steering pinion shaft3536026
RACK & PINION POWER STEERING GEAR ASSY
Engine hanger set bolt AZ Series:
1CD±FTV:38
37390
37528
27
Tie rod end sub±assy lock nut7475054
Rack & pinion power steering gear assy set bolt4950036
Steering intermediate shaft x Control valve pinion shaft3536026
Front suspension crossmember sub±assy x Frame11 31,35698
Crossmember bracket x Frame Bolt A:
Bolt B:11 3
801,356 81698
59
Crossmember x Engine mounting insulator RR5253038
Center member x Frame4545933
Center member x Engine mounting insulator FR5253038
Front suspension arm sub±assy lower No.1 x Lower ball joint8990866
Front stabilizer link assy set nut7475555
Pressure feed tube assy x Rack & pinion steering gear assy41 (44.1)414 (450)30 (33)
Steering gear outlet return tube x Rack & pinion steering gear assy41 (44.1)414 (450)30 (33)
Outlet return tube clamp set bolt (LHD)8.08271 in.
lbf
Tie rod end sub±assy x Steering knuckle4950036
Steering intermediate shaft assy No.2 set bolts3536026
Front wheel hub nut1031,05076
( ): For use without SST(s)
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100G7±02
321
45
±20
020 40 60
80100
0.1
0.2 0.3 0.5 1 2
35
10
20 30
TEMPERATURE
C(
F)
RESISTANCE k

(±4) (32) (80) (140)(104) (212)
(176)
Air
E2THAVG
E2G +B
A50378
12
Valve
A50377
B09641
10±20
±
ENGINE CONTROL SYSTEM SFI SYSTEM (1AZ±FE)
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) Check throttle body. (1) Check that throttle valve shaft is not rickety.
(2) Check that each port is not stopped up.
(3) Check that throttle valve opens and closes smooth-
ly.
(4) Check that there is no clearance between the
throttle stop screw and throttle lever when the
closed throttle position.
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100G6±02
A75903
Air
A79035
VG
EVG
A79035E2
PSW
10±18
±
ENGINE CONTROL SYSTEMSFI SYSTEM(1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
SFI SYSTEM(1AZ±FE)
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 ºDIAGNOSIS / OBD/
MOBD / DATA LIST / ALLº shown the standard val-
ue.
If operation is not as specified, check the MAF meter (See page
10±20), 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±20), wiring and ECM.
2. INSPECT POWER STEERING OIL PRESSURE SEN- SOR
(a) Using a voltmeter, measure the voltage between termi-
nals PSW and E2.
Voltage:
ConditionVoltage (V)
Not spin the steering wheel at engine idling9 to 14
Spin the steering wheel at engine idling0 to 3
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100G9±02
321
45
±20
020 40 60
80100
0.1
0.2 0.3 0.5 1 2
35
10
20 30
TEMPERATURE
C(
F)
RESISTANCE k

(±4) (32) (80) (140)(104) (212)
(176)
Air
E2THAVG
E2G +B
A50378
12
Valve
A50377
A59778
M±
M+
±
ENGINE CONTROL SYSTEM SFI 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)
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A53763
E2PSW
10±38
±
ENGINE CONTROL SYSTEMSFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
2.INSPECT POWER STEERING OIL PRESSURE SEN- SOR
(a)Using a voltmeter, measure the voltage between termi-
nals PSW and E2.
Voltage:
ConditionVoltage (V)
Not spin the steering wheel at engine idling9 to 14
Spin the steering wheel at engine idling0 to 3
3.INSPECT THROTTLE BODY
(a)Inspect the throttle control motor for operating sound.(1)Turn the ignition switch ON.
(2)When turning the accelerator pedal position sensor lever, check the running sound of the motor.Also, check that there is no friction sound.
If operation is not as specified, check the throttle control motor (See page 10±39), wiring and ECM.
(b) Inspect the throttle position sensor.
(1) Connect the hand±held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) When turning the accelerator pedal position sensor lever to the full±\
open position, check thatthe throttle valve opening percentage (THROTTLE POS) of the CURRENT DATA shown the
standard value.
Standard throttle valve opening percentage:
60 % or more
If operation is not as specified, check that the accelerator pedal positio\
n sensor (See page 10±39), wiring
and ECM.
If you have no hand±held tester, measure voltage between terminals (VTA1 ± E2, VTA2 ± E2) of the ECM
connector (See page 05±318).
(c) Inspect the air assist system.
(1) Start the engine and check that the CHK ENG does not light up.
(2) Allow the engine to warm up to normal operating temperature.
(3) Turn the A/C compressor ON to OFF, and check the idle speed.
Idle speed (Transmission in neutral): 700
50 rpm
NOTICE:
Perform inspection under condition without electrical load.
(d) After checking the above (b) to (d), perform the driving test and check that there is no sense of incon-
gruity.
4. INSPECT ACCELERATOR PEDAL POSITION SENSOR
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) Check that the voltage (ACCEL POS) of the CURRENT DATA shown the standard value.
Accelerator pedal released: 0.5 to 1.1 V
Accelerator pedal depress: 2.6 to 4.5 V
(d) Check that the voltage (ACCEL POS #2) of the CURRENT DATA shown the standard value. Accelerator pedal released: 1.2 to 2.0 V
Accelerator pedal depress: 3.4 to 5.3 V
If you have no hand±held tester, measure voltage between terminals (VPA ± EPA, VPA2 ± EPA2) of the ECM
connector (See page 05±318).
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100EY±02
A60548
AirE2THAVG
E2G +B
30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
RESISTANCE k

±20 0 20 40 60 80 100 54321
(±4)(32)(68)(104)(140)(176)(212) TEMPERATURE
C(
F)
A60549
1 2
Valve
±
ENGINE CONTROL SYSTEM SFI SYSTEM (1ZZ±FE/3ZZ±FE)
10±3
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) 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 output 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 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 catching of foreign objects causes
subtle pressure leak to the advanced direction. DTC can be de-
tected.
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