steering wheel TOYOTA PRIUS 2001 Service Workshop Manual

AB0119H01298H01299
Airbag Sensor Assembly
ON
IG1
ACC
(+) (±)
H01249
ON
DI±636
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
2001 PRIUS (RM778U)
2 Check source voltage.
PREPARATION:
Connect negative (±) terminal cable to the battery.
CHECK:
(a) Turn ignition switch ON.
(b) Measure the voltage between body ground and each of
IG1 and IG2 on the sensor and operate electric system
(defogger, wiper, headlight, heater blower, etc.).
OK:
Voltage: 10 ± 14 V
NG Check harness between battery and airbag sen-
sor assembly, and check battery and charging
system.
OK
3 Does SRS warning light turn off?
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Connect the steering wheel pad connector.
(c) Connect the front passenger airbag assembly connector.
(d) Connect the side airbag assembly connectors.
(e) Connect the seat belt pretensioner connectors.
(f) Connect the airbag sensor assembly connectors.
(g) Connect the front airbag sensor connectors.
(h) Connect the side airbag sensor assembly connectors.
(i) Turn the ignition switch to ON.
CHECK:
Operate electric system (defogger, wiper, headlight, heater
blower, etc.) and check that SRS warning light goes off.
NO Check for DTCs. If a DTC is output, perform trou-
bleshooting for the DTC. If a normal code is out-
put, replace airbag sensor assembly.
YES
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.

± SUSPENSION AND AXLETIRE AND WHEEL
SA±3
1453 Author: Date:
2001 PRIUS (RM778U)
5. CHECK FRONT SUSPENSION FOR LOOSENESS
6. CHECK STEERING LINKAGE FOR LOOSENESS
7. CHECK BALL JOINT FOR LOOSENESS
8. CHECK SHOCK ABSORBER WORKS PROPERLY

Check if oil leaks

Check mounting bushings for wear

Bounce front and rear of the vehicle

F11573
Front:
Rear:SA1CK±11
Z03382
Alignment
TesterGauge
F07339
SA±4
± SUSPENSION AND AXLEFRONT WHEEL ALIGNMENT
1454 Author: Date:
2001 PRIUS (RM778U)
FRONT WHEEL ALIGNMENT
INSPECTION
1. MEASURE VEHICLE HEIGHT
Vehicle height:
Tire sizeFront*1 mm (in.)Rear*2 mm (in.)
175/65R14191 (7.52)239 (9.41)
*1: Front measuring point
Measure the distance from the ground to the head center of the
front side lower suspension arm mounting bolt.
*
2: Rear measuring point
Measure the distance from the ground to the center of the rear
axle beam mounting bolt.
NOTICE:
Before inspecting the wheel alignment, adjust the vehicle
height to the specified value.
If the vehicle height is not the specified value, try to adjust it by
pushing down on or lifting the body.
2. INSTALL CAMBER±CASTER±KINGPIN GAUGE OR
POSITION VEHICLE ON WHEEL ALIGNMENT TES-
TER
Follow the specific instructions of the equipment manufacturer.
3. INSPECT CAMBER, CASTER AND STEERING AXIS
INCLINATION
Camber, caster and steering axis inclination:
Camber
Right±left error±0°26' ± 45' (±0.43° ± 0.75°)
45' (0.75°) or less
Caster
Right±left error1°02' ± 45' (1.03° ± 0.75°)
45' (0.75°) or less
Steering axis inclination
Right±left error9°52' ± 45' (9.87° ± 0.75°)
45' (0.75°) or less
If the caster and steering axis inclination are not within the spe-
cified values, after the camber has been correctly adjusted, re-
check the suspension parts for damaged and/or worn out parts.
4. ADJUST CAMBER
NOTICE:
After the camber has been adjusted, inspect the toe±in.
(a) Remove the front wheel.
(b) Remove the 2 nuts on the lower side of the shock absorb-
er.
If reusing the bolts and/or nuts, coat the threads of nuts with en-
gine oil.
(c) Clean the installation surfaces of the shock absorber and
the steering knuckle.
(d) Temporarily install the 2 nuts.

SA3213
Front A
DB
C
F11574
F11575
SA0028
Front AB
A B
A: Inside
B: Outside SA±6
± SUSPENSION AND AXLEFRONT WHEEL ALIGNMENT
1456 Author: Date:
2001 PRIUS (RM778U)
5. INSPECT TOE±IN
Toe±in:
Toe±in
(total)A + B: 0°06' ± 12' (0.1° ± 0.2°)
C ± D: 1 ± 2 mm (0.04 ± 0.08 in.)
If the toe±in is not within the specified value, adjust it at the rack
ends.
6. ADJUST TOE±IN
(a) Remove the rack boot set clips.
(b) Loosen the tie rod end lock nuts.
(c) Turn the right and left rack ends by an equal amount to
adjust the toe±in.
HINT:
Try to adjust the toe±in to the center of the specified value.
(d) Make sure that the lengths of the right and left rack ends
are the same.
Rack end length difference: 1.5 mm (0.059 in.) or less
(e) Torque the tie rod end lock nuts.
Torque: 74 N´m (750 kgf´cm, 55 ft´lbf)
(f) Place the boots on the seats and install the clips.
HINT:
Make sure that the boots are not twisted.
7. INSPECT WHEEL ANGLE
Turn the steering wheel fully and measure the turning angle.
Wheel turning angle:
Inside wheel42°42' ± 2°
(42.70° ± 2°)
Outside wheel: Reference35°54' (35.90°)
If the right and left inside wheel angles differ from the specified
value, check the right and left rack end lengths.

SA20B±01
FA1535
SST
F12940SST
F11576
SST
± SUSPENSION AND AXLEFRONT DRIVE SHAFT
SA±17
2001 PRIUS (RM778U)
REMOVAL
NOTICE:

The hub bearing could be damaged if it is subjected
to the vehicle weight, such as when moving the ve-
hicle with the drive shaft removed.
Therefore, if it is absolutely necessary to place the ve-
hicle weight on the hub bearing, first support it with
the SST.
SST 09608±16042 (09608±02021, 09608±02041)

After disconnecting the drive shaft from the axle hub,
work carefully so as not to damage the ABS speed
sensor rotor serrations on the drive shaft.
1. REMOVE FRONT WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. REMOVE ENGINE UNDER COVER
3. DRAIN ATF
4. REMOVE DRIVE SHAFT LOCK NUT
(a) Using SST and a hammer, unstake the staked part of the
lock nut.
SST 09930±00010
(b) While applying the brakes, remove the nut.
Torque: 216 N´m (2,200 kgf´cm, 159 ft´lbf)
5. DISCONNECT TIE ROD END FROM STEERING
KNUCKLE
(a) Remove the cotter pin and nut.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)
HINT:
At the time of installation, if the holes for a new cotter pin are not
aligned, tighten the nut further up to 60°.
(b) Using SST, disconnect the tie rod end from the steering
knuckle.
SST 09628±62011

SA1ZW±01
F11576
SST
F11616
F11617
F11586
± SUSPENSION AND AXLEFRONT LOWER SUSPENSION ARM
SA±33
2001 PRIUS (RM778U)
REMOVAL
1. REMOVE FRONT WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. REMOVE ENGINE UNDER COVER
3. REMOVE LOWER SUSPENSION ARM
(a) Disconnect the RH and LH tie rod ends.
(1) Remove the cotter pin and nut.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)
(2) Using SST, disconnect the tie rod end from the
steering knuckle.
SST 09628±62011
(3) Employ the same manner described above to the
other side.
(b) Disconnect the RH and LH stabilizer bar links.
(1) Remove the nut and disconnect the stabilizer bar
link from the shock absorber.
Torque: 74 N´m (755 kgf´cm, 55 ft´lbf)
HINT:
If the ball joint turns together with the nut, use a hexagon (5 mm)
wrench to hold the stud.
(2) Employ the same manner described above to the
other side.
(c) Disconnect the RH and LH lower suspension arms from
the lower ball joints.
(1) Remove the bolt and 2 nuts, and disconnect the
lower suspension arm from the lower ball joint.
Torque: 142 N´m (1,450 kgf´cm, 105 ft´lbf)
(2) Employ the same manner described above to the
other side.
(d) Loosen the 2 lower suspension arm set bolts.
Torque: 137 N´m (1,397 kgf´cm, 101 ft´lbf)
HINT:
At the time of installation, after stabilizing the suspension,
torque the bolts.
(e) Disconnect the sliding yoke (See page SR±6).
(f) Support the suspension member with a transmission
jack.

BR1JA±01
F12629
Front Door Scuff Plate Cowl Side TrimHood Lock Release
Lever Lower Column CoverRadio Tuner Opening CoverCluster Finish Panel
Assembly Hazard Warning Switch
Lower Center Cluster
Finish PanelGlove Compartment
Door Finish PanelInstrument PanelNo. 3 Register No. 2 Side Defroster
Nozzle
Front Pillar GarnishPassenger Air Bag
Assembly Cluster Finish Panel
Combination Meter
Lower Finish PanelSteering Wheel Pad Steering Wheel
Spiral CableUpper Column Cover
Front Door Scuff PlateCowl Side Trim No. 1 RegisterNo. 1 Side Defroster
NozzleFront Pillar Garnish
: Specified torqueN´m (kgf´cm, ft´lbf)
50 (510, 37)
BR±10
± BRAKEPARKING BRAKE PEDAL
2001 PRIUS (RM778U)
COMPONENTS

SR1BE±01
F12219
Shift Lever Assembly
Upper Column Cover
Lower Ciolumn CoverSteering Wheel Pad
Steering Wheel
Combination Switch
(w/ Spiral Cable)
Transmission Control
Cable Steering Column
Assembly
Shift Lock Computer
Sub±assembly Sliding Yoke
No. 2 Intermediate
Shaft Assembly
Column Hole Cover
Main Shaft Lower
Dust Seal
Hood Lock
Release LeverLower Instrument
Finish Panel
N´m (kgf´cm, ft´lbf): Specified torque
35 (360, 26)
25 (260, 19)
49 (50, 43 in.´lbf)
35 (360, 26)
35 (360, 26)
25 (260, 19)
50 (510, 37)
8.8 (90, 78 in.´lbf)
Torx Screw
8.0 (80, 69 in.´lbf)
8.8 (90, 78 in.´lbf)
Torx Screw
4.0 (40, 35 in.´lbf)
Instrument Finish
Panel
49 (50, 43 in.´lbf)
SR±4
± STEERINGTILT STEERING COLUMN
1577 Author: Date:
2001 PRIUS (RM778U)
TILT STEERING COLUMN
COMPONENTS

SR1BF±01
F12211
Torx
ScrewTorx Screw
Case
F12212
Correct WrongAirbag Connector
F12213SST
Matchmarks
SR±6
± STEERINGTILT STEERING COLUMN
2001 PRIUS (RM778U)
REMOVAL
1. REMOVE STEERING WHEEL PAD
NOTICE:
If the airbag connector is disconnected with the ignition
switch at ON, DTCs will be recorded.
(a) Place the front wheels facing straight ahead.
(b) Using a torx socket wrench, loosen the 2 torx screws until
the groove along the screw circumference catches on the
screw case.
(c) Pull out the wheel pad from the steering wheel and dis-
connect the airbag connector.
(d) Disconnect the connector.
CAUTION:

When storing the wheel pad, keep the upper surface
of the pad facing upward.

Never disassemble the wheel pad.
NOTICE:
When removing the wheel pad, take care not to pull the air-
bag wire harness.
2. REMOVE STEERING WHEEL
(a) Remove the steering wheel set nut.
(b) Place matchmarks on the steering wheel and main shaft
assembly.
(c) Using SST, remove the steering wheel.
SST 09950±50012 (09951±05010, 09952±05010,
09953±05020, 09954±05020)

F12830
F08459
Marks
± STEERINGTILT STEERING COLUMN
SR±15
2001 PRIUS (RM778U)
11. CONNECT TRANSMISSION CONTROL CABLE
12. INSTALL SPIRAL CABLE (See page BE±19)
13. INSTALL COMBINATION SWITCH WITH SPIRAL
CABLE
(a) Install the combination switch with spiral cable with the 3
screws.
(b) Connect the airbag connector.
(c) Connect the connectors.
14. INSTALL UPPER AND LOWER COLUMN COVERS
(a) Install the upper column cover with the screw.
(b) Install the lower column cover with the 3 screws.
15. INSTALL LOWER INSTRUMENT FINISH PANEL
(a) Connect the connectors and DLC3 and install the lower
instrument finish panel.
(b) Install the screw and bolt.
(c) Connect the hood lock release lever with the 2 screws.
16. CENTER SPIRAL CABLE
(a) Check that the front wheels are facing straight ahead.
(b) Turn the cable counterclockwise by hand until it becomes
harder to turn.
(c) Then rotate the cable clockwise about 2.5 turns to align
the marks.
HINT:
The cable will rotate about 2.5 turns to either left or right of the
center.
17. INSTALL STEERING WHEEL
(a) Align the matchmarks on the steering wheel and main
shaft assembly.
(b) Install the steering wheel set nut.
Torque: 50 N´m (510 kgf´cm, 37 ft´lbf)
18. INSTALL STEERING WHEEL PAD
NOTICE:

Never use airbag parts from another vehicle. When
replacing parts, replace with new ones.

Make sure the wheel pad is installed with the speci-
fied torque.

If the wheel pad has been dropped, or there are
cracks, dents or other defects in the case or connec-
tor, replace the wheel pad with a new one.

When installing the wheel pad, take care that the wir-
ings do not interfere with other parts and that they are
not pinched between other parts.
(a) Connect the connector.
(b) Connect the airbag connector.