sensor TOYOTA SIENNA 2007 Service Repair Manual

AXLE – REAR AXLE HUB AND BEARING (for 2WD)AH–17
AH
REMOVAL
HINT:
Replace the RH side by the same procedures as the LH side.
1. REMOVE REAR WHEEL
2. REMOVE REAR DISC BRAKE CALIPER ASSEMBLY
LH
(a) Removing the 2 bolts, separate the rear disc brake
caliper assembly LH for disc rear brake type.
NOTICE:
Using a string and so on, hang down the disc
brake caliper.
3. REMOVE REAR DISC
(a) Remove rear disc for disc rear brake type.
4. REMOVE REAR BRAKE DRUM SUB-ASSEMBLY
(a) Remove rear brake drum sub-assembly for drum
rear brake type.
5. SEPARATE SKID CONTROL SENSOR WIRE
(a) Disconnect the connector
6. REMOVE REAR AXLE HUB & BEARING ASSEMBLY
LH
(a) Remove the 4 bolts and hub & bearing assembly
LH.
INSTALLATION
1. INSTALL REAR AXLE HUB & BEARING ASSEMBLY
LH
(a) Install the hub & Bearing assembly LH with the 4
bolts.
Torque: 56 N*m (571 kgf*cm, 41 ft.*lbf)
2. INSPECT BEARING BACKLASH (See page AH-16)
3. INSPECT AXLE HUB DEVIATION (See page AH-16)
4. CONNECT SKID CONTROL SENSOR WIRE
(a) Connect the connector.
NOTICE:
Do not twist the sensor wire when connecting it.
5. INSTALL REAR DISC
(a) Install rear disc for disc rear brake type.
6. INSTALL REAR BRAKE DRUM SUB-ASSEMBLY
(a) Install rear brake drum sub-assembly for drum rear
brake type.
C066210E04
C066210E05

AH–18AXLE – REAR AXLE HUB AND BEARING (for 2WD)
AH
7. INSTALL REAR DISC BRAKE CALIPER ASSEMBLY
LH
(a) Install the rear disc brake caliper assembly LH with
the 2 bolts for disc rear brake type.
Torque: 88 N*m (900 kgf*cm, 65 ft.*lbf)
8. INSTALL REAR WHEEL
Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
9. CHECK ABS SPEED SENSOR SIGNAL
(a) ABS WITH EBD SYSTEM (See page BC-3).
(b) ABS WITH EBD & BA & TRAC & VSC SYSTEM
(See page BC-72).

AH–20AXLE – REAR AXLE HUB AND BEARING (for 4WD)
AH
REMOVAL
HINT:
Replace the RH side by the same procedures as the LH side.
1. REMOVE REAR WHEEL
2. REMOVE REAR AXLE SHAFT LH NUT (See page DS-
22)
3. SEPARATE REAR DISC BRAKE CALIPER
ASSEMBLY LH
(a) Removing the 2 bolts, separate the rear disc brake
caliper assembly LH.
4. REMOVE REAR DISC
5. SEPARATE SPEED SENSOR REAR LH
(a) Removing the bolt, separate the speed sensor rear
LH.
NOTICE:
• Be careful not to damage the speed sensor.
• Prevent foreign matter from attaching to the
speed sensor.
6. REMOVE REAR DRIVE SHAFT ASSEMBLY LH (See
page DS-22)
7. REMOVE REAR AXLE HUB & BEARING ASSEMBLY
LH
(a) Remove the 4 bolts and hub & bearing assembly
LH.
INSTALLATION
1. INSTALL REAR AXLE HUB & BEARING ASSEMBLY
LH
(a) Install the hub & bearing assembly LH with the 4
bolts.
Torque: 56 N*m (571 kgf*cm, 41 ft.*lbf)
2. INSPECT BEARING BACKLASH (See page AH-19)
3. INSPECT AXLE HUB DEVIATION (See page AH-19)
4. INSTALL REAR DRIVE SHAFT ASSEMBLY LH (See
page DS-26)
5. INSTALL SPEED SENSOR REAR LH
(a) Install the bolt, connect the speed sensor rear LH.
Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf)
NOTICE:
• Be careful not to damage the speed sensor.
• Prevent foreign matter from attaching to the
speed sensor.
C065991E01
C065991E02

AXLE – REAR AXLE HUB AND BEARING (for 4WD)AH–21
AH
• Do not twist the sensor wire when installing
the sensor.
6. INSTALL REAR DISC
7. INSTALL REAR DISC BRAKE CALIPER ASSEMBLY
LH
(a) Install the rear disc brake caliper assembly LH with
the 2 bolts.
Torque: 88 N*m (900 kgf*cm, 65 ft.*lbf)
8. INSTALL REAR AXLE SHAFT LH NUT (See page DS-
26)
9. INSTALL REAR WHEEL
Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
10. CHECK ABS SPEED SENSOR SIGNAL
(a) ABS WITH EBD & BA & TRAC & VSC SYSTEM
(See page BC-72).

SP–14SUSPENSION – FRONT SHOCK ABSORBER WITH COIL SPRING
SP
9. REMOVE FRONT SHOCK ABSORBER WITH COIL
SPRING
(a) Loosen the lock nut.
NOTICE:
• Do not loosen the nut except for the purpose
of disassembling the shock absorber
assembly front LH with coil spring.
• Do not remove the lock nut.
(b) Remove the bolt, and disconnect the front flexible
hose No.1 and speed sensor front LH.
(c) Remove the 2 nuts and 2 bolts on the lower side of
the front shock absorber with coil spring.
NOTICE:
When removing the bolt, hold the nut not to
rotate.
(d) Remove the 3 nuts on the upper side of the front
shock absorber with coil spring.
(e) Remove the front shock absorber with the coil
spring.
F044629
C065925
F013683
F044630

SP–18SUSPENSION – FRONT SHOCK ABSORBER WITH COIL SPRING
SP
INSTALLATION
1. INSTALL FRONT SHOCK ABSORBER WITH COIL
SPRING
(a) Install the front shock absorber with coil spring as
shown in the illustration.
(b) Install the 3 nuts to the upper side of the front shock
absorber with coil spring.
Torque: 80 N*m (816 kgf*cm, 59 ft.*lbf)
(c) Install the 2 bolts and 2 nuts to the lower side of the
front shock absorber with coil spring.
Torque: 210 N*m (2,140 kgf*cm, 155 ft.*lbf)
NOTICE:
When installing the bolt, hold the nut not to
rotate.
(d) Fully tighten the lock nut.
Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf)
(e) Install the front flexible hose No.1 and speed sensor
front LH with the bolt.
Torque: 19 N*m (189 kgf*cm, 14 ft.*lbf)
F044630
F013683
F044629
C065925

SP–4SUSPENSION – FRONT WHEEL ALIGNMENT
SP
FRONT WHEEL ALIGNMENT
ADJUSTMENT
NOTICE:
For vehicles equipped with VSC, if wheel alignment has
been adjusted, and if suspension or underbody
components have been removed/installed or replaced, be
sure to perform the following initialization procedure in
order for the system to function normally:
1. Disconnect the negative battery terminal for more
than 2 seconds.
2. Reconnect the negative battery terminal.
3. Perform zero point calibration of the yaw rate and
acceleration sensor and test mode inspection.
HINT:
(See page BC-70)
1. INSPECT TIRE
HINT:
(See page TW-2)
2. MEASURE VEHICLE HEIGHT
(a) Bounce the vehicle at the corners up and down to
stabilize the suspension and inspect the vehicle
height.
Vehicle height:
FF
4WD
Measuring points:
A:
Ground clearance of front wheel center
B:
Ground clearance of lower suspension arm
No. 2 set bolt center
C:
Ground clearance of rear axle carrier
bushing set bolt center
D:
Ground clearance of rear wheel center
NOTICE:
Before inspecting the wheel alignment, adjust
the vehicle height to the specified value.
HINT:
If the vehicle height is not as specified, adjust it by
pushing down or lifting the body.
C128560E01
Front (A - B) Rear (D - C)
115.5 mm (4.55 in.) -27.5 mm (-1.08 in.)
Front (A - B) Rear (D - C)
116 mm (4.57 in.) -45.5 mm (-1.79 in.)

SUSPENSION – REAR WHEEL ALIGNMENTSP–9
SP
REAR WHEEL ALIGNMENT
ADJUSTMENT
NOTICE:
For vehicles equipped with VSC, if wheel alignment has
been adjusted, and if suspension or underbody
components have been removed/installed or replaced, be
sure to perform the following initialization procedure in
order for the system to function normally:
1. Disconnect the negative battery terminal for more
than 2 seconds.
2. Reconnect the negative battery terminal.
3. Perform zero point calibration of the yaw rate and
acceleration sensor and test mode inspection.
HINT:
(See page BC-70)
1. INSPECT TIRE
HINT:
(See page TW-2)
2. MEASURE VEHICLE HEIGHT
NOTICE:
Before inspecting the wheel alignment, adjust the
vehicle height to the specified valve.
3. INSPECT TOE-IN
(a) Inspect the toe-in.
To e - i n
FF
4WD
HINT:
If the toe-in is not within the specified value, inspect
the suspension parts and replace them if necessary.
4. INSPECT CAMBER
(a) Install the camber-caster-kingpin gauge or position
the vehicle on the wheel alignment tester.
(b) Inspect the camber.
Camber
FF
SA03213E12
Tire sizeTo e - i n
(total)
215/65R 16A + B: 16.2' +/- 16.2' (0.27
+/- 0.27)
C - D: 3.2 +/- 3.2 mm (0.13 +/- 0.13 in.)
225/60R 17A + B: 16.2' +/- 16.2' (0.27
+/- 0.27)
C - D: 3.3 +/- 3.3 mm (0.13 +/- 0.13 in.)
Tire sizeTo e - i n
(total)
225/60R 17A + B: 12.6' +/- 16.2' (0.21
+/- 0.27)
C - D: 2.6 +/- 3.3 mm (0.10 +/- 0.13 in.)
Camber
Right-left error
-1
22' +/- 30' (-1.37 +/- 0.5)
30' (0.5
) or less

SP–24SUSPENSION – FRONT LOWER BALL JOINT
SP
REMOVAL
1. REMOVE FRONT WHEEL
2. REMOVE FRONT AXLE HUB LH NUT
HINT:
(See page AH-4)
SST 09930-00010
3. SEPARATE SPEED SENSOR FRONT LH
HINT:
(See page AH-4)
4. SEPARATE FRONT DISC BRAKE CALIPER
ASSEMBLY LH
HINT:
(See page AH-4)
5. REMOVE FRONT DISC
6. SEPARATE TIE ROD ASSEMBLY LH
HINT:
(See page AH-4)
SST 09628-62011
7. SEPARATE FRONT SUSPENSION ARM SUB-
ASSEMBLY LOWER NO.1 LH
HINT:
(See page AH-4)
8. REMOVE FRONT AXLE ASSEMBLY LH
HINT:
(See page AH-4)
9. REMOVE LOWER BALL JOINT ASSEMBLY FRONT
LH
(a) Remove the cotter pin and nut.
(b) Using SST, remove the lower ball joint assembly
front LH.
SST 09628-62011
INSPECTION
1. INSPECT LOWER BALL JOINT ASSEMBLY FRONT
LH
(a) As shown in the illustration, flip the ball joint stud
back and forth 5 times, before installing the nut.
(b) Using a torque wrench, turn the nut continuously at
a rate of 3 - 5 seconds per 1 turn and take the
torque reading on the 5th turn.
Turning torque:
0.98 to 3.43 N*m (10 to 35 kgf*cm, 8.7 to 30
in.*lbf)
F040153E04
ZX01712

SUSPENSION – FRONT LOWER BALL JOINTSP–25
SP
INSTALLATION
1. INSTALL LOWER BALL JOINT ASSEMBLY FRONT
LH
(a) Install the lower ball joint assembly front LH and
tighten the nut.
Torque: 123 N*m (1,250 kgf*cm, 91 ft.*lbf)
(b) Install a new cotter pin.
NOTICE:
If the holes for the cotter pin are not aligned,
tighten the nut further up to 60
.
2. INSTALL FRONT AXLE ASSEMBLY LH
HINT:
(See page AH-4)
3. INSTALL FRONT SUSPENSION ARM SUB-
ASSEMBLY LOWER NO.1 LH
HINT:
(See page AH-4)
4. INSTALL TIE ROD ASSEMBLY LH
HINT:
(See page AH-4)
5. INSTALL FRONT DISC
6. INSTALL FRONT DISC BRAKE CALIPER ASSEMBLY
LH
HINT:
(See page AH-4)
7. INSTALL SPEED SENSOR FRONT LH
HINT:
(See page AH-4)
8. INSTALL FRONT AXLE HUB LH NUT
HINT:
(See page AH-4)
9. INSTALL FRONT WHEEL
Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
10. INSPECT AND ADJUST FRONT WHEEL ALIGNMENT
HINT:
(See page SP-4)
11. CHECK ABS SPEED SENSOR SIGNAL
w/o VSC: (See page BC-2).
w/ VSC: (See page BC-68).