LEXUS ES300 2005 Repair Manual

5002K-07
50-2
- STEERING COLUMNSTEERING
2563 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
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 the order shown. 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 gear28-1
51-3
51-3
51-3
26-5
-
26-16
-
51-9
51-21
Poor return
1. Tires (Improperly inflated)
2. Front wheel alignment (Incorrect)
3. Steering column (Binding)
4. Power steering gear28-1
26-5
-
51-21
Excessive play
1. Steering system joints (Worn)
2. Suspension arm ball joints (Worn)
3. Intermediate shaft, Sliding yoke (Worn)
4. Front wheel bearing (Worn)
5. Power steering gear-
26-16
-
30-19
51-21
Abnormal noise
1. Power steering fluid level (Low)
2. Steering system joints (Worn)
3. Power steering vane pump
4. Power steering gear51-3
-
51-9
51-21

5002L-03
H41575
Maximum
Freeplay
30 mm (1.18 in.)
- STEERING COLUMNSTEERING
50-3
2564 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
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.
Maximum freeplay: 30 mm (1.18 in.)

5002V-03
F16015
Steering Wheel
Masking Tape
Steering Column
Upper Cover
F16016
Steering Wheel
Masking
Tape Steering Column
Upper Cover
Marked Line
F16017
Steering Wheel Steering Column
Upper Cover
Marked Line
50-4
- STEERING COLUMNSTEERING
2565 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
REPAIR
1. STEERING OFF CENTER REPAIR PROCEDURE
(a) Inspect steering wheel off center.
(1) Apply masking tape on 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 il-
lustration.
(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.
Measured distance 1 mm (0.04 in.) = Steering angle
approximately 1 deg.
HINT:
Make a note of the steering angle.
(b) Adjust steering angle.

R00429
Marked Line
F16018
- STEERING COLUMNSTEERING
50-5
2566 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(1) Draw a line on the RH and LH tie rod and rack ends
where it can easily be seen.
(2) Using a paper gauge, measure the distance from
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.
1 turn 360 deg. of rack end (1.5 mm (0.059 in.) horizon-
tal movement) - 12 deg. of steering angle.
(6) Tighten the RH and LH lock nuts.
Torque: 74 NVm (755 kgfVcm, 55 ftVlbf)
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.

5002H-02
C90698
Steering Column
CoverHorn Button Assy
Steering Wheel Assy
Steering Pad SwitchConnector
Cover
Turn Signal Switch Assy
50 (510, 37)
Steering Column Cover
Lower No.2Instrument Panel
Finish Plate
NVm (kgfVcm, ftVlbf) : Specified torque
21 (214, 15)
8.8 (90, 78 in.Vlbf)
Steering Wheel
Cover Lower No. 2
Instrument Panel Sub-assy Upper
Steering Column Assy
Steering Column Hole
Cover Sub-assy No. 2
Hose Clamp
Heater to Foot
Duct No. 3
Steering Intermediate
Shaft Sub-assyInstrument Panel Insert
Sub-assy Lower LH
Front Door Scuff Plate LH
35 (360, 26)
35 (360, 26)
21 (214, 15)
50-6
- STEERING COLUMNSTEERING COLUMN ASSY
2567 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
STEERING COLUMN ASSY
COMPONENTS

C92308
NVm (kgfVcm, ftVlbf) : Specified torque
35 (360, 26)
Non-reusable partUn-lock Waring
Switch AssyTransponder Key Amplifier
Ignition Switch Lock
Cylinder Assy
Steering Column Upper
w/ Switch Bracket Assy
Steering Column Assy
Ignition or Starter
Switch Assy
Steering Sliding
Yoke Sub-assySteering Column
Clamp Upper
 Tapered-Head Bolt
- STEERING COLUMNSTEERING COLUMN ASSY
50-7
2568 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)

5002I-04
C90684
Matchmarks
SST
C90685
C90686
50-8
- STEERING COLUMNSTEERING COLUMN ASSY
2569 Author
: Date
:
OVERHAUL
1. PRECAUTION(See page 60-1)
2. DISCONNECT BATTERY NEGATIVE TERMINAL(See page 60-1)
3. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
4. REMOVE STEERING WHEEL COVER LOWER NO.2
5. REMOVE CONNECTOR COVER
6. REMOVE STEERING PAD SWITCH
(a) Remove the 2 screws.
(b) Disconnect the connector and remove the steering pad switch.
7. REMOVE HORN BUTTON ASSY(See page 60-22)
8. REMOVE STEERING WHEEL ASSY
(a) Remove the steering wheel assy set nut.
(b) Place matchmarks on the steering wheel assy and steer-
ing main shaft assy.
(c) Using SST, remove the steering wheel assy.
SST 09950- 50013 (09951- 05010, 09952- 05010,
09953-05020, 09954-05021)
9. REMOVE FRONT DOOR SCUFF PLATE LH(See page 71-1 1)
10. REMOVE INSTRUMENT PANEL SUB-ASSY UPPER(See page 71-1 1)
11. REMOVE INSTRUMENT PANEL INSERT SUB-ASSY LOWER LH(See page 71-1 1)
12. REMOVE HEATER TO FOOT DUCT NO.3(See page 71-1 1)
13. REMOVE STEERING COLUMN COVER LWR NO.2
(a) Remove the steering column cover lwr No.2.
14. REMOVE STEERING COLUMN COVER
(a) Remove the 3 screws and steering column cover.

C90687
C90688Matchmarks
- STEERING COLUMNSTEERING COLUMN ASSY
50-9
2570 Author
: Date
:
15. REMOVE TURN SIGNAL SWITCH ASSY
(a) Disconnect the 3 connectors.
(b) Disconnect the airbag connector.
(c) Remove the 3 screws and turn signal switch assy.
16. REMOVE INSTRUMENT PANEL FINISH PLATE(See page 71-1 1)
17. DISCONNECT FLOOR SHIFT PARKING LOCK CABLE
ASSY
(a) Place the ignition switch lock cylinder assy at the key ACC
position.
(b) Remove the cable cap claw from the key interlock and pull
out the floor shift parking lock cable assy.
18. DISCONNECT STEERING SLIDING YOKE SUB-ASSY
(a) Place the matchmarks on the steering sliding yoke sub-
assy and intermediate shaft sub-assy.
(b) Remove the bolt and disconnect the steering sliding yoke
sub-assy .
19. REMOVE STEERING COLUMN HOLE COVER SUB-ASSY NO.2
(a) Remove the hose clamp.
(b) Remove the steering column hole cover sub-assy No.2.
20. REMOVE STEERING COLUMN ASSY
(a) Disconnect the connectors and wire harness clamps.
(b) Disconnect the driver side junction block.

C90690
C90689
Matchmarks
C90844H41505
Matchmarks
C90692
50-10
- STEERING COLUMNSTEERING COLUMN ASSY
2571 Author
: Date
:
(c) Remove the 2 nuts, bolt and steering column assy from
the instrument panel reinforcement assy.
21. REMOVE STEERING INTERMEDIATE SHAFT
SUB-ASSY
(a) Place the matchmarks on the steering intermediate shaft
sub-assy and steering gear assy.
(b) Remove the bolt and steering intermediate shaft sub-
assy.
22. REMOVE STEERING SLIDING YOKE SUB-ASSY
(a) Place the matchmarks on the steering sliding yoke sub-
assy and steering main shaft assy.
(b) Remove the bolt and steering yoke sub-assy.
23. REMOVE TRANSPONDER KEY AMPLIFIER
(a) Widen the claw hung on 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 damage.

C90693
Screw Extractor
C90695
C90696
- STEERING COLUMNSTEERING COLUMN ASSY
50-1 1
2572 Author
: Date
:
24. REMOVE STEERING COLUMN UPPER W/SWITCH
BRACKET ASSY
(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 in to the 2 bolts.
(c) Using a screw extractor, remove the 2 bolts and steering
column upper w/switch bracket assy.
25. REMOVE IGNITION SWITCH LOCK CYLINDER ASSY
(a) Place the ignition switch lock cylinder assy at the ACC
position.
(b) Push down the stop pin with a screwdriver, and pull out
the ignition switch lock cylinder assy.
26. REMOVE UN-LOCK WARNING SWITCH ASSY
(a) Disconnect the un-lock warning switch assy connector
from the ignition or starter switch assy.
(b) Remove the un-lock warning switch assy by pushing up
the center part and releasing the 2 screws.
27. REMOVE IGNITION OR STARTER SWITCH ASSY
(a) Remove the 2 screws and ignition or starter switch assy from the steering column upper w/switch
bracket assy.
28. INSTALL IGNITION OR STARTER SWITCH ASSY
(a) Install the ignition switch assy to the steering column upper w/switch bracket assy with the 2 screws.
29. INSTALL UN-LOCK WARNING SWITCH ASSY
(a) Install the un-lock warning switch assy.
(b) Connect the un-lock warning switch assy connector to the ignition or starter switch assy.
30. INSTALL IGNITION SWITCH LOCK CYLINDER ASSY
(a) Make sure the ignition switch lock cylinder assy at the ACC position.
(b) Install the ignition switch lock cylinder assy.
31. INSPECT 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 ACC
position.