Toyota Sienna Service Manual: Reassembly
1. INSTALL SEAT POSITION AIRBAG SENSOR (for Driver Seat)
2. INSTALL LUMBAR SUPPORT ADJUSTER
ASSEMBLY LH
- Install the seat side table leg cover.
3. INSTALL FRONT SEAT CUSHION SHIELD LOWER LH
- Install the front seat cushion shield lower LH with
the screw.
4. INSTALL FRONT SEAT CUSHION SHIELD LOWER
RH
HINT:
Use the same procedures for the RH side and LH side.
5. INSTALL RECLINING ADJUSTER INSIDE COVER LH
- Install the reclining adjuster inside cover LH (upper)
with the screw.
6. INSTALL RECLINING ADJUSTER INSIDE COVER RH
HINT:
Use the same procedures for the RH side and LH side.
7. INSTALL RECLINING ADJUSTER INSIDE COVER RH
- Install the reclining adjuster inside cover RH (lower)
with the 2 screws.
- Install the clamp.
8. INSTALL RECLINING ADJUSTER INSIDE COVER LH
- Install the reclining adjuster inside cover LH (lower)
with the 2 screws.
9. INSTALL FRONT SEATBACK HEATER ASSEMBLY LH (w/ Seat Heater System)
- Place the seat heater on the seatback cover.
- Install the seat heater to the seatback cover with
new tack pins.

NOTICE:
Do not substitute other metal parts for tack pins.
10. INSTALL FRONT SEATBACK COVER LH

- Install the seatback pad.
- Cover the top of the seatback pad with the seatback
cover.
- Using hog ring pliers, completely install the
seatback cover with new hog rings.
NOTICE:
- Be careful not to damage the cover.
- When installing the hog rings, take care to
prevent wrinkles as much as possible.
11. INSTALL SEATBACK COVER WITH PAD

- Install the seatback cover with pad.

- Using hog ring pliers, install new hog rings and
hooks.
NOTICE:
- Be careful not to damage the cover.
- When installing the hog rings, take care to
minimize wrinkles as much as possible.

- with Side airbag:
Install the seatback cover bracket with the nut.
Torque: 5.5 N*m (56 kgf*cm, 48 in.*lbf)
NOTICE:
- For a vehicle with side airbag, the side airbag
may not be activated normally unless the
seatback cover is securely installed.
- Check that the strap has no twist after
installing the bracket.

- Attach a rubber wire with new hog rings, as shown
in the illustration.
- Using hog ring pliers, install new hog rings.
NOTICE:
- Be careful not to damage the cover.
- When installing the hog rings, take care to
prevent wrinkles as much as possible.
12. INSTALL FRONT SEAT HEADREST SUPPORT
- Install the 2 headrest supports.
13. INSTALL FRONT SEATBACK BOARD LH
- Install the front seatback board LH.
14. INSTALL FRONT SEAT INNER LH ARMREST
ASSEMBLY
- Install the armrest with the bolt.
Torque: 20 N*m (200 kgf*cm, 14 ft.*lbf)
- Install the armrest cap.
15. INSTALL FRONT SEAT CUSHION HEATER ASSEMBLY LH (w/ Seat Heater System)
- Place the seat heater on the seat cushion cover.
- Install the seat heater to the seat cushion cover with
new tack pins.

NOTICE:
Do not substitute other metal parts for tack pins.
16. INSTALL SEPARATE TYPE FRONT SEAT CUSHION COVER

- Install the seat cushion pad to the seat cushion
cover.
- Using hog ring pliers, install the seat cushion cover
to the seat cushion pad with new hog rings.
NOTICE:
- Be careful not to damage the cover.
- When installing the hog rings, take care to
prevent wrinkles as much as possible.
17. INSTALL SEAT CUSHION COVER WITH PAD
- Install the seat cushion cover with pad.
- Install the clamps and hooks.
- with Seat heater:
Connect the connector.
18. INSTALL FRONT SEAT TRACK COVER LH FRONT
INNER
- Install the seat track cover front inner with the clip
and 2 screws.
19. INSTALL FRONT SEAT TRACK COVER LH FRONT
OUTER
- Install the seat track cover front outer with the clip
and 2 screws.
20. INSTALL FRONT SEAT INNER BELT ASSEMBLY LH
- Install the inner belt assembly with the nut.
Torque: 41 N*m (418 kgf*cm, 30 ft.*lbf)
HINT:
Check that the inner seat belt assembly moves
smoothly.
- Connect the connectors.
21. INSTALL FRONT POWER SEAT SWITCH LH
- Install the power seat switch LH with the 3 screws.
- Connect the connector.
22. INSTALL POWER SEAT SWITCH (for Driver Seat)
- Install the power seat switch with the 2 screws.
23. INSTALL NO. 1 FRONT SEAT CUSHION SHIELD
INNER LH
- Install the No. 1 front seat cushion shield inner LH to
the front seat cushion shield LH with the screw.
24. INSTALL FRONT SEAT CUSHION SHIELD INNER LH
- Install the front seat cushion shield inner LH to the
No. 1 front seat cushion shield inner LH with the
screw.
- Install the front seat cushion shield LH together with
front seat cushion shield inner LH and No. 1 front
seat cushion shield inner LH.
- Install the 7 screws.
25. INSTALL SLIDE & VERTICAL POWER SEAT SWITCH
KNOB
- Install the reclining power seat switch knob.
26. INSTALL RECLINING POWER SEAT SWITCH KNOB
- Install the reclining power seat switch knob.
27. INSTALL OCCUPANT CLASSIFICATION ECU (for Front Passenger Seat)
28. INSTALL FRONT SEAT SIDE TABLE (w/ Table)
- Install the seat side table with 4 nuts.
Torque: 13 N*m (133 kgf*cm, 10 ft.*lbf)
29. INSTALL FRONT SEAT SIDE TABLE LEG COVER (w/
Table)
- Install the seat side table leg cover.
1. REMOVE FRONT SEAT SIDE TABLE LEG COVER (w/
Table)
Using a screwdriver, disengage the claws and
remove the seat side table leg cover.
HINT:
Tape the screwdriver tip before use.
2. ...
1. INSTALL FRONT SEAT ASSEMBLY LH
Place the seat assembly in the cabin.
NOTICE:
Be careful not to damage the body.
Connect the connectors under the seat assembly.
T ...
Other materials:
Right Front Wheel Speed Sensor Signal
DESCRIPTION
The speed sensor detects wheel speed and sends the appropriate signals to the
ECU. These signals are
used to control the ABS control system. The front and rear rotors have 48
serrations each.
When the rotors rotate, the magnetic field emitted by the permanent magnet in
t ...
Short in Rear Curtain Shield Squib LH Circuit
DTC B1635/87 Short in Rear Curtain Shield Squib LH Circuit
DESCRIPTION
The rear curtain shield squib LH circuit consists of the center airbag sensor
assembly and the curtain
shield airbag assembly LH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1635/87 ...
Brake Switch "A" Circuit
DTC P0571 Brake Switch "A" Circuit
DESCRIPTION
When the brake pedal is depressed, the stop light switch sends a signal to
the ECM. When the ECM
receives this signal, it cancels the cruise control. The fail-safe function
operates to enable normal driving
even if there is a malfuncti ...