TOYOTA AVALON 2001 Service Repair Manual

F08854
SST
SR-34
- STEERINGPOWER STEERING VANE PUMP
1497 Author
: Date
:
2001 AVALON (RM808U)
11. INSTALL SPRING, FLOW CONTROL VALVE AND
PRESSURE PORT UNION
(a) Install the spring.
(b) Install the flow control valve facing in the correct direction
(See page SR-25).
(c) Coat a new O-ring with power steering fluid and install it
to the pressure port union.
(d) Install the pressure port union.
Torque: 83 N´m (850 kgf´cm, 62 ft´lbf)
12. INSTALL SUCTION PORT UNION
(a) Coat a new O-ring with power steering fluid and install it
to the suction port union.
(b) Install the suction port union with bolt.
Torque: 13 N´m (130 kgf´cm, 9 ft´lbf)
13. INSTALL FRONT AND REAR BRACKETS
Install the front and rear brackets with 3 bolts and 2 nuts.
Torque: 43 N´m (440 kgf´cm, 32 ft´lbf)
14. INSTALL VANE PUMP PULLEY
(a) Install the vane pump pulley and nut to the vane pump
shaft.
(b) Using SST, stop the pulley rotating and torque the nut.
SST 09960-10010 (09962-01000, 09963-01000)
Torque: 44 N´m (450 kgf´cm, 33 ft´lbf)
15. MEASURE PS VANE PUMP ROTATING TORQUE
(See page SR-28)

SR0EO-06
F13584
Pressure Feed TubeSST
F08855
A
B
- STEERINGPOWER STEERING VANE PUMP
SR-27
1490 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. REMOVE FRONT FENDER APRON SEAL RH
Remove the 2 bolts and front fender apron seal RH.
2. DISCONNECT RETURN HOSE
Remove the clip and disconnect the return hose.
NOTICE:
Take care not to spill fluid on the drive belt.
3. DISCONNECT PRESSURE FEED TUBE
(a) Remove the 2 clamp plate set nuts.
(b) Remove the bolt, 2 clamp plates and 2 holders from the
pressure feed tube.
(c) Using a spanner, hold the pressure feed tube steadily and
using SST, disconnect the pressure feed tube.
SST 09023-12700
4. REMOVE DRIVE BELT
Loosen the 2 (A and B) bolts and drive belt.
5. REMOVE PS VANE PUMP ASSEMBLY WITH PRES-
SURE FEED TUBE
(a) Disconnect the connector from the oil pressure switch.
(b) Loosen the bolt A sufficiently so that pump assembly can
be removed.
HINT:
Bolt A cannot be removed.
(c) Remove the bolt B and PS vane pump assembly.
6. REMOVE OIL PRESSURE SWITCH
NOTICE:
Be careful not to drop the switch.
If the switch is dropped or strongly damaged, replace it with a
new one.
7. REMOVE PRESSURE FEED TUBE
(a) Remove the oil pressure switch from the union bolt.
(b) Remove the union bolt, gasket and pressure feed tube.

SR0RU-02
R11290
Vinyl Tape
W03541
Press
SST
Oil Seal SR-32
- STEERINGPOWER STEERING VANE PUMP
1495 Author
: Date
:
2001 AVALON (RM808U)
REPLACEMENT
NOTICE:
When using a vise, do not overtighten it.
IF NECESSARY, REPLACE OIL SEAL
(a) Using a screwdriver with vinyl tape wound around its tip,
remove the oil seal.
NOTICE:
Be careful not to damage the front housing.
(b) Coat a new oil seal lip with power steering fluid.
(c) Using SST, press in the oil seal.
SST 09950-60010 (09951-00330),
09950-70010 (09951-07100)
NOTICE:
Make sure that the oil seal is installed facing in the correct
direction.

SR0EB-02
- STEERINGSTEERING SYSTEM
SR-1
1464 Author
: Date
:
2001 AVALON (RM808U)
STEERING SYSTEM
PRECAUTION

Care must be taken to replace parts properly because they could affect the performance of the
steering system and result in a driving hazard.

The AVALON is equipped with SRS (Supplemental Restraint System) such as the driver airbag
and front passenger airbag. Failure to carry out service operation in the correct sequence could
cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious accident.
Before servicing (including removal or installation of parts, inspection or replacement), be sure
to read the precautionary notices in the RS section.

F08857
SR0EG-05
F08858
SR-8
- STEERINGSTEERING WHEEL
1471 Author
: Date
:
2001 AVALON (RM808U)
STEERING WHEEL
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 a finger
lightly, check the steering wheel freeplay.
Maximum freeplay: 30 mm (1.18 in.)
2. CHECK STEERING EFFORT
(a) Center the steering wheel.
(b) Remove the steering wheel pad (See page SR-12).
(c) Start the engine and run it at idle.
(d) Measure the steering effort in both directions.
Steering effort (Reference)
5.9 N´m (60 kgf´cm, 52 in.´lbf)
HINT:
Take the tire type, pressure and contact surface into consider-
ation before making your diagnosis.
(e) Torque the steering wheel set nut.
Torque: 50 N´m (510 kgf´cm, 37 ft´lbf)
(f) Install the steering wheel pad (See page SR-22).

SR0EC-02
SR-2
- STEERINGTROUBLESHOOTING
1465 Author
: Date
:
2001 AVALON (RM808U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, repair or replace these parts.
SymptomSuspect AreaSee page
Hard steering
1. Tires (Improperly inflated)
2. Power steering fluid level (Low)
3. Drive belt (Loose)
4. Front wheel alignment (Incorrect)
5. Steering system joints (Worn)
6. Suspension arm ball joints (Worn)
7. Steering column (Binding)
8. Power steering vane pump
9. Power steering gearSA-2
SR-5
SR-3
SA-4
-
SA-38
-
SR-25
SR-37
Poor return
1. Tires (Improperly inflated)
2. Front wheel alignment (Incorrect)
3. Steering column (Binding)
4. Power steering gearSA-2
SA-4
-
SR-37
Excessive play
1. Steering system joints (Worn)
2. Suspension arm ball joints (Worn)
3. Universal joint, Intermediate shaft, Sliding yoke (Worn)
4. Front wheel bearing (Worn)
5. Power steering gear-
SA-38
-
SA-9
SR-37
Abnormal noise
1. Power steering fluid level (Low)
2. Steering system joints (Worn)
3. Power steering vane pump
4. Power steering gearSR-5
-
SR-25
SR-37

SR0EH-06
F08837
Floor shift:
8.8 (90, 78 in.´lbf)
50 (510, 37)
Torx ScrewSteering Wheel Pad
Steering Wheel Lower
No. 2 Cover
Combination Switch
(w/ Spiral cable)
Column Upper Cover
Column Lower CoverSteering Wheel Lower
No. 2 CoverSteering Wheel
Steering Column
Assembly
Clamp
Intermediate Shaft
Sub-assembly
25 (260, 19)
N´m (kgf´cm, ft´lbf): Specified torqueTorx Screw
Lower Instrument Finish
Panel Assembly
Return Spring
No. 2 Column Hole
Cover Sub-assemblyUniversal Joint Assembly No. 2 Column Lower CoverSteering Angle
Sensor
Lower No. 1 Instrument
Panel Sub-assembly
Lower LH Instrument Panel
Insert Sub-assembly
No. 2 Heater to Register Duct
Air Cleaner Assembly
with Air Cleaner Hose
Steering Angle
Sensor Adapter Speed Control Main
Switch Assemblyw/ VSC:
w/ VSC:
8.8 (90, 78 in.´lbf)
35 (360, 26)
35 (360, 26)
35 (360, 26)
Hood Lock Release Lever
- STEERINGTILT STEERING COLUMN
SR-9
1472
2001 AVALON (RM808U)
TILT STEERING COLUMN
COMPONENTS

F08849
Column shift:
50 (510, 37)
8.8 (90, 78 in.´lbf)
Torx ScrewSteering Wheel Pad
Steering Wheel Lower
No. 2 Cover
Combination Switch
(w/ Spiral cable)
Column Upper Cover
Column Lower CoverSteering Wheel Lower
No. 2 Cover Steering Wheel
Steering Column
Assembly
Clamp
Intermediate Shaft
Sub-assembly
25 (260, 19)
35 (360, 26)
N´m (kgf´cm, ft´lbf) : Specified torqueTorx Screw
Lower Instrument Finish
Panel Assembly
Return Spring
No. 2 Column Hole
Cover Sub-assembly
Universal Joint Assembly No. 2 Column Lower CoverSteering
Angle Sensor
Lower No. 1 Instrument
Panel Sub-assembly
Lower LH Instrument Panel
Insert Sub-assembly
No. 2 Heater to Register Duct
Air Cleaner Assembly
with Air Cleaner Hose
Steering Angle
Sensor Adapter Speed Control Main
Switch Assembly
Transmission Control
Cable
w/ VSC:
w/ VSC:
Hood Lock Release Lever
35 (360, 26)
35 (360, 26)
8.8 (90, 78 in.´lbf)
SR-10
- STEERINGTILT STEERING COLUMN
1473 Author
: Date
:
2001 AVALON (RM808U)

F09909
Column shift:
Shift Lever


Shift Lever Housing11 (110, 8)

10 (100, 7)
Shift Lock
Control ECU
2.8 (29, 25 in.´lbf)
3.4 (35, 30 in.´lbf)

Shift Lock Switch
Corrugate Tube
No. 2 Steering
Column Ring

Spring
RetainerCompression Spring
Main Shaft
Bushing
Main Shaft Collar
7.5 (75, 65 in.´lbf)



Turn Signal Bracket
Steering Column Upper Tube
Tilt Lever Lock ShaftTilt Lever Tension Spring


9.0 (90, 78 in.´lbf)
Spring Guide
Tilt Spring
No. 2 Tilt Steering Bolt
Tapered-head Bolt Key Interlock Solenoid Key Unlock
Warning SwitchColumn Upper
Bracket
Main Shaft Assembly



Transponder Key Coil
Key Cylinder
Lamp Assembly
Ignition Switch
Transponder Key
Amplifier
N´m (kgf´cm, ft´lbf) : Specified torque

Non-reusable part
Molybdenum disulfide lithium base greaseShift Lock
Solenoid Bracket
No. 2 Tilt
Steering Bolt

Column Tube Assembly
w/ Engine immobiliser system:
w/ Engine immobiliser system:
Key Cylinder
- STEERINGTILT STEERING COLUMN
SR-1 1
1474
2001 AVALON (RM808U)

SR0Z5-01
F08832
Screw Extractor
R11903
F09911
SR-16
- STEERINGTILT STEERING COLUMN
1479 Author
: Date
:
2001 AVALON (RM808U)
DISASSEMBLY
NOTICE:
When using a vise, do not overtighten it.
1. w/ Engine immobiliser system:
REMOVE TRANSPONDER KEY COIL
2. REMOVE KEY CYLINDER LAMP ASSEMBLY
Remove the screw and key cylinder lamp assembly.
3. Column shift:
REMOVE SHIFT LOCK CONTROL ECU
Disconnect the 3 connectors and remove the shift lock control
ECU.
4. REMOVE COLUMN UPPER BRACKET
(a) Using a centering punch, mark the center of the 2 ta-
pered-head bolts.
(b) Using a 3 - 4 mm (0.12 - 0.16 in.) drill, drill into the 2 bolts.
(c) Using a screw extractor, remove the 2 bolts and column
upper bracket.
5. Column shift:
REMOVE SHIFT LEVER HOUSING
(a) Remove the torx screw and shift lock switch.
(b) Remove the 2 torx screws and shift lock solenoid bracket.
(c) Remove the torx screw and shift lever.
(d) Remove the 3 torx screws and shift lever housing.
6. REMOVE TURN SIGNAL BRACKET
(a) Remove the tension spring.
(b) Remove the 2 torx screws and turn signal bracket.