2007 TOYOTA SIENNA Steering

BC–198BRAKE CONTROL – STEERING ANGLE SENSOR
BC
BRAKE
BRAKE CONTROL
STEERING ANGLE SENSOR
COMPONENTS
C119321E14

BRAKE CONTROL – STEERING ANGLE SENSORBC–199
BC
REMOVAL
1. PRECAUTION
HINT:
See page RS-1
2. SEPARATE BATTERY NEGATIVE TERMINAL
3. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
4. REMOVE HORN BUTTON ASSEMBLY (See page RS-
424)
5. REMOVE STEERING WHEEL ASSEMBLY (See page
SR-6)
6. REMOVE STEERING COLUMN COVER LWR (See
page RS-434)
7. REMOVE SPIRAL CABLE SUB-ASSEMBLY (See page
RS-434)
8. REMOVE STEERING ANGLE SENSOR
(a) Release the claw fittings and remove the steering
sensor from the spiral cable.
INSTALLATION
1. INSTALL STEERING ANGLE SENSOR
(a) Install the steering sensor onto the spiral cable.
2. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
3. INSTALL SPIRAL CABLE SUB-ASSEMBLY (See page
RS-434)
4. INSTALL STEERING COLUMN COVER LWR (See
page RS-435)
5. CENTER SPIRAL CABLE (See page RS-435)
6. INSTALL STEERING WHEEL ASSEMBLY
7. INSPECT STEERING WHEEL CENTER POINT (See
page SR-11)
8. INSTALL HORN BUTTON ASSEMBLY (See page RS-
424)
9. INSPECT SRS WARNING LIGHT
HINT:
See page RS-1.
F045466
F045466

SR–6STEERING COLUMN – STEERING COLUMN ASSEMBLY
SR
REMOVAL
1. PRECAUTION
HINT:
See page RS-1
2. DISCONNECT BATTERY NEGATIVE TERMINAL
Wait for 90 seconds after disconnecting the battery
terminal to prevent the airbag working.
3. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
4. REMOVE STEERING WHEEL COVER LOWER NO.2
(See page RS-424)
5. REMOVE STEERING WHEEL COVER LOWER NO.3
(See page RS-424)
6. REMOVE HORN BUTTON ASSEMBLY (See page RS-
424)
7. REMOVE STEERING WHEEL ASSEMBLY
(a) Remove the steering wheel assembly set nut.
(b) Put matchmarks on the steering wheel assembly
and main shaft assembly.
(c) Using SST, remove the steering wheel assembly.
SST 09950-50013 (09951-05010, 09952-05010,
09953-05020, 09954-05021)
8. REMOVE STEERING COLUMN COVER
(a) Remove the 2 screws and steering column cover.
9. REMOVE SPIRAL CABLE SUB-ASSEMBLY (See page
RS-434)
10. REMOVE HEADLIGHT DIMMER SWITCH ASSEMBLY
(See page LI-102)
11. REMOVE WINDSHIELD WIPER SWITCH ASSEMBLY
(See page WW-17)
12. REMOVE FRONT DOOR SCUFF PLATE LH
13. REMOVE COWL SIDE TRIM BOARD LH
14. REMOVE INSTRUMENT PANEL FINISH PANEL SUB-
ASSEMBLY LOWER LH (See page IP-6)
15. REMOVE INSTRUMENT PANEL SAFETY PAD
INSERT SUB-ASSEMBLY NO.1 (See page IP-6)
16. REMOVE HEATER TO FOOT DUCT NO.3
(a) Disengage the 3 claws and remove the sir duct No.
3.
F044997E02
F044998

STEERING COLUMN – STEERING COLUMN ASSEMBLYSR–7
SR
17. SEPARATE STEERING INTERMEDIATE SHAFT
ASSEMBLY
(a) Loosen the bolt.
(b) Release the 3 clips and separate the dust cover.
(c) Align the matchmarks on the steering intermediate
shaft assembly and steering gear assembly.
(d) Remove the bolt and separate the steering
intermediate shaft assembly.
18. REMOVE STEERING COLUMN ASSEMBLY
(a) Disconnect the connectors and wire harness
clamps.
(b) Remove the 3 bolts and steering column assembly
from the instrument panel reinforcement assembly.
F044999
D030704E01
D029986E01
F045001

SR–8STEERING COLUMN – STEERING COLUMN ASSEMBLY
SR
DISASSEMBLY
1. REMOVE STEERING INTERMEDIATE SHAFT
ASSEMBLY
(a) Align the matchmarks on the steering intermediate
shaft assembly and main shaft.
(b) Remove the bolt and steering intermediate shaft
assembly.
2. REMOVE KEY CYLINDER LIGHT ASSEMBLY (w/o
Engine Immobiliser System)
3. REMOVE TRANSPONDER KEY AMPLIFIER (w/
Engine Immobiliser System)
(a) Widen the claw hanging onto the upper bracket by
approx. 1.0 mm (0.039 in.) using a screwdriver.
(b) Pull the transponder key amplifier toward the rear of
the vehicle with the claw open.
NOTICE:
Take care not to use excessive force to prevent
the case from being damaged.
4. REMOVE STEERING COLUMN BRACKET
ASSEMBLY UPPER
(a) Using a centering punch, mark the center of the 2
tapered-head bolts.
(b) Using a 3 to 4 mm (0.12 to 0.16 in.) drill, drill a hole
into the heads of the 2 bolts.
(c) Using a screw extractor, remove the 2 bolts and
steering column upper w/ switch bracket assembly.
5. REMOVE IGNITION SWITCH LOCK CYLINDER
ASSEMBLY
(a) Place the ignition switch lock cylinder assembly in
the ACC position.
(b) Push down the stop pin with a screwdriver, and pull
out the cylinder assembly.
6. REMOVE UN-LOCK WARNING SWITCH ASSEMBLY
(a) Disconnect the un-lock warning switch assembly
connector from the ignition or starter switch
assembly.
(b) Remove the un-lock warning switch assembly by
pushing up the center part and releasing the 2
claws.
F045002E01
F045003
F045004E01
F045005
F045006E01

STEERING COLUMN – STEERING COLUMN ASSEMBLYSR–9
SR
(c) Disengage the secondary locking device.
(d) Using a screwdriver, disengage the locking lug of
terminals 1 and 2, and pull the terminals out from
the rear side of the un-lock warning switch
assembly.
7. REMOVE KEY INTER LOCK SOLENOID
(a) Remove the 2 screws and solenoid from the
steering column bracket assembly.
8. REMOVE IGNITION OR STARTER SWITCH
ASSEMBLY
(a) Remove the 2 screws and ignition or starter switch
assembly from the steering column bracket
assembly UPR.
C083844

SR–10STEERING COLUMN – STEERING COLUMN ASSEMBLY
SR
REASSEMBLY
1. INSTALL IGNITION OR STARTER SWITCH
ASSEMBLY
(a) Install the ignition or starter switch assembly to the
steering column bracket assembly UPR with the 2
screws.
2. INSTALL KEY INTER LOCK SOLENOID
(a) Install the solenoid to the steering column bracket
assembly with the 2 screws.
3. INSTALL UN-LOCK WARNING SWITCH ASSEMBLY
(a) Install the un-lock warning switch assembly.
(b) Connect terminals 1 and 2 of the un-lock warning
switch assembly connector.
(c) Connect the un-lock warning switch assembly
connector to the ignition or starter switch assembly.
4. INSTALL IGNITION SWITCH LOCK CYLINDER
ASSEMBLY
(a) Make sure that the ignition switch lock cylinder
assembly is in the ACC position.
(b) Install the ignition switch lock cylinder assembly.
5. INSTALL STEERING LOCK OPERATION
(a) Check that the steering lock mechanism is activated
when removing the key.
(b) Check that the steering lock mechanism is
deactivated when inserting the key and turning it to
the ACC position.
6. INSTALL STEERING COLUMN BRACKET ASSEMBLY
UPPER
(a) Temporarily install the steering column upper w/
switch bracket assembly and steering column upper
clamp with 2 new tapered-head bolts.
(b) Tighten the 2 tapered-head bolts until the bolt heads
break off.
7. INSTALL KEY CYLINDER LIGHT ASSEMBLY (w/o
Engine Immobiliser System)
8. INSTALL TRANSPONDER KEY AMPLIFIER (w/
Engine Immobiliser System)
(a) Align the transponder key amplifier with the
installation position of the upper bracket with the
amplifier inclined.
(b) Push the transponder key amplifier up and connect
it to the upper bracket.
NOTICE:
Take care not to push the amplifier up with
excessive force to prevent it from being
damaged.
C083845
F045007
F045008

STEERING COLUMN – STEERING COLUMN ASSEMBLYSR–11
SR
9. INSTALL STEERING INTERMEDIATE SHAFT
ASSEMBLY
(a) Align the matchmarks on the steering intermediate
shaft assembly and main shaft.
(b) Temporarily install the steering intermediate shaft
assembly with the bolt.
Torque: 36 N*m (370 kgf*cm, 27 ft.*lbf)
INSTALLATION
1. INSTALL STEERING COLUMN ASSEMBLY
(a) Install the steering column assembly with the 3
bolts.
Torque: 25 N*m (255 kgf*cm, 18 ft.*lbf)
(b) Connect the connectors.
(c) Connect the wire harness clamps to the steering
column tube.
2. CONNECT STEERING INTERMEDIATE SHAFT
ASSEMBLY
(a) Align the matchmarks on the intermediate shaft
assembly and steering gear assembly.
(b) Install the steering intermediate shaft assembly with
the bolt.
Torque: 36 N*m (370 kgf*cm, 27 ft.*lbf)
(c) Install the dust cover to the hole cover. Check that
the 3 clips of the dust cover are securely fitted into
the groove on the hole cover.
3. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
4. INSTALL SPIRAL CABLE SUB-ASSEMBLY (See page
RS-434)
5. INSTALL STEERING COLUMN COVER
6. CENTER SPIRAL CABLE (See page RS-435)
F045002E02
F045001
D029986E02
D030704E02