Toyota Sienna Service Manual: Repair
1. STEERING OFF CENTER REPAIR PROCEDURE
(a) Inspect steering wheel off center.
(1) Apply masking tape to the top center of the steering wheel and steering column upper cover.
(2) Drive the vehicle in a straight line for 100 meters at a constant speed of 35 mph (56 km/ h), and hold the steering wheel to maintain the course.
(3) Draw a line on the masking tape as shown in the illustration.
(4) Turn the steering wheel to its straight position.
HINT: Refer to the upper surface of the steering wheel, steering spoke and SRS airbag line for the straight position.
(5) Draw a new line on the masking tape or the steering wheel as shown in the illustration.
(6) Measure the distance between the 2 lines on the masking tape of the steering wheel.
(7) Convert the measured distance to steering angle.
HINT:
- Measured distance 1 mm (0.04 in.) = Steering angle approximately 1 deg.
- Make a note of the steering angle.
(b) Adjust the steering angle.
(1) Draw a line on the RH and LH tie rod and on the RH and LH rack end, which can easily be seen.
(2) Using a paper gauge, measure the distance from the RH and LH tie rod ends to the rack end screws.
HINT:
- Measure the RH side and LH side.
- Make a note of the measured values.
(3) Remove the RH and LH boot clips from the rack boots.
(4) Loosen the RH and LH lock nuts.
(5) Turn the RH and LH rack end by the same amount (but in different directions) according to the steering angle.
HINT: 1 turn 360 deg. of rack end (1.5 mm (0.059 in.) horizontal movement) - 12 deg. of steering angle.
(6) Tighten the RH and LH lock nuts.
Torque: 74 N*m (755 kgf*cm, 55 ft.*lbf)
NOTICE:
Make sure that the difference in length between RH and LH tie rod ends and rack end screws are within 1.5 mm (0.059 in.).
(7) Install the RH and LH boot clips.
On-vehicle Inspection
1. CHECK STEERING WHEEL FREEPLAY
(a) Stop the vehicle and face the tires straight ahead.
(b) Rock the steering wheel gently up and down with
your hand, check the steering wheel freeplay.
Max ...
Steering Column Assembly
COMPONENTS
...
Other materials:
Open in Rear Curtain Shield Squib RH Circuit
DTC B1631/84 Open in Rear Curtain Shield Squib RH Circuit
DESCRIPTION
The rear curtain shield squib RH circuit consists of the center airbag sensor
assembly and the curtain
shield airbag assembly RH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1631/84 ...
Dtc check / clear
Notice:All the stored dtcs and freeze frame data are
erased if:
1) the ecm is changed from normal mode to check mode
or vice versa; or 2) the ignition switch is turned from on
to acc or off while in check mode.
Before changing modes, always check and make a note
of any dt ...
Disposal
HINT:
Use the same procedures for the RH side and LH side.
The procedures listed below are for the LH side.
When scrapping a vehicle equipped with the SRS or
disposing of the front seat side airbag assembly, be sure to
deploy the airbag first in accordance with the proc ...
