Page 815 of 969
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
Page 817 of 969

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.
Page 822 of 969

C90690
C90688
Matchmarks
- STEERING COLUMNSTEERING COLUMN ASSY
50-13
2574 Author: Date:
37. INSTALL STEERING COLUMN ASSY
(a) Install the steering column assy with the 2 nuts and bolt.
Torque: 21 NVm (214 kgfVcm, 15 ftVlbf)
(b) Connect the driver side junction block.
(c) Connect the connectors and wire harness clamps.
38. CONNECT STEERING SLIDING YOKE SUB-ASSY
(a) Align the matchmarks on the steering sliding yoke sub-
assy and steering intermediate shaft sub-assy.
(b) Connect the steering sliding yoke sub-assy with the bolt.
Torque: 35 NVm (360 kgfVcm, 26 ftVlbf)
39. CONNECT FLOOR SHIFT PARKING LOCK CABLE ASSY
(a) Place the ignition switch lock cylinder assy at the key ACC position.
(b) Install the floor shift parking lock cable assy.
40. INSPECT CHECK KEY INTERLOCK OPERATION(See page 40-31)
41. INSTALL INSTRUMENT PANEL FINISH PLATE(See page 71-1 1)
42. INSTALL TURN SIGNAL SWITCH ASSY
(a) Install the turn signal switch assy with the 3 screws.
(b) Connect the airbag connector.
(c) Connect the 3 connectors.
43. INSPECT SPIRAL CABLE SUB-ASSY(See page 60-31)
44. INSTALL STEERING COLUMN COVER
(a) Install the steering column cover with the 3 screws.
45. INSTALL STEERING COLUMN COVER LWR NO.2
46. INSTALL HEATER TO FOOT DUCT NO.3(See page 71-1 1)
47. INSTALL INSTRUMENT PANEL INSERT SUB-ASSY LOWER LH
48. INSTALL INSTRUMENT PANEL SUB-ASSY UPPER
49. INSTALL FRONT DOOR SCUFF PLATE LH
50. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
Page 858 of 969

Lexus Supports ASE CertificationPage 1 of 4
Title:
M.I.L. ON" DTC P0031, P0051, P2238,
AND/OR P2241
Models:
'04 ± '05 ES 330
Technical Service
Information Bulletin
February 16, 2005
EG003-05
Under certain driving conditions, some 2004 and 2005 model year ES 330 vehicles may
exhibit a M.I.L. ªONº with at least one of the following DTCs:
P0031 (Oxygen Sensor Heater Control Circuit Low [Bank 1, Sensor 1])
P0051 (Oxygen Sensor Heater Control Circuit Low [Bank 2, Sensor 1])
P2238 (Oxygen Sensor Pumping Current Circuit Low (for A/F Sensor)
[Bank 1, Sensor 1])
P2241 (Oxygen Sensor Pumping Current Circuit Low (for A/F Sensor)
[Bank 2, Sensor 1])
The A/F sensor manufacturing process and the Engine Control Module (ECM)
(SAE term: Powertrain Control Module/PCM) logic have been modified to improve
these conditions.
NOTE:
Version 12.01a or later Diagnostic Tester software is required to perform
this procedure.
Before proceeding, verify the ECM (PCM) calibration has NOT been updated
by checking for the Authorized Modifications Label (shown in step 2 of the
Repair Procedure).
2004 model year ES 330 vehicles.
2005 model year ES 330 vehicles produced BEFORE the Production Change
Effective VIN shown below.
MODELPRODUCTION CHANGE EFFECTIVE VIN
2005 ES 330JTHBA30G*55086805
OP CODEDESCRIPTIONTIMEOFPT1T2
EG4029Recalibrate ECM (PCM) Engine,
R & R Both A/F Sensors1.6
89661±33A40
89661±33A41
89661±33B30
8A99
Applicable Warranty*:
This repair is covered under the Lexus Federal Emissions Warranty. This warranty is
in effect for 96 months or 80,000 miles, whichever occurs first, from the vehicle's
in-service date.
* Warranty application is limited to correction of a problem based upon a customer's specific complaint.
ENGINE
Introduction
Applicable
Vehicles
Production
Change
Information
Warranty
Information
Page 887 of 969