2005 LEXUS ES300 engine

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

M.I.L. ªONº DTC P0031, P0051, P2238, AND/OR P2241 ± EG003-05 February 16, 2005
Page 2 of 4
PREVIOUS PART NUMBERCURRENT PART NUMBERPART NAMEQTY
89467±33110SameSensor, Air Fuel Ratio, Rear
(Bank 1)1
89467±33100SameSensor, Air Fuel Ratio, Front
(Bank 2)1
N/A00451±00001±LBLAuthorized Modifications Label1
NOTE:
Authorized Modification Labels may be ordered in packages of 25 from the Materials
Distribution Center (MDC) through Dealer Daily Dealer Support Materials System or by
calling the MDC at 1±800±622±2033.
SPECIAL SERVICE TOOLS (SSTs)PART NUMBERQUANTITY
Lexus Diagnostic Tester Kit*010012701
12 Megabyte Diagnostic Tester Program Card
with version 12.01a Software (or later)*01002593-0051
* Essential SSTs.
NOTE:
Additional Diagnostic Tester Kits, Program Cards, or other SSTs may be ordered by
calling SPX/OTC at 1-800-933-8335.
ENGINEECM (CPU)PREVIOUS CALIBRATION IDNEW CALIBRATION ID
3MZ±FEMain
33350000
33350100
33360000
33360100
Sub5333400053340000
NOTE:
Although the calibration description in the Calibration Update Wizard and on the
Diagnostic Tester reads ª04 ES 330,º these calibrations apply to 2004 and 2005
model year ES 330 vehicles produced before the Production Change Effective VIN
shown on page 1 of this TSIB.
2004 model year ES 330 vehicles, which have been flash reprogrammed using the
procedures in this TSIB, will contain upgraded 2005 model year OBD II logic. Refer
to the 2005 model year ES 330 Repair Manual information on the Technical
Information System (TIS) when checking Powertrain Diagnostic Trouble Codes
(DTCs) on 2004 model year vehicles that have been reprogrammed. Parts
Information
Required
SSTs
Calibration
Identification
Chart

Lexus Supports ASE CertificationPage 1 of 4
Title:
M.I.L. ON" DTC P0346
Models:
'04 ± '05 ES 330
Technical Service
Information Bulletin
March 15, 2005
EG006-05
Under certain driving conditions, some 2004 and 2005 model year ES 330 vehicles may
exhibit a M.I.L. ªONº with the following DTC:
P0346 (Camshaft Position Sensor ªAº Circuit Range/Performance [Bank 2])
The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic
have been modified to change this condition.
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 1 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
EG5013Recalibrate ECM (PCM) Engine0.8
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

M.I.L. ªONº DTC P0346 ± EG006-05 March 15, 2005
Page 2 of 4
PREVIOUS PART NUMBERCURRENT PART NUMBERPART NAMEQTY
N/A00451±00001±LBLAuthorized Modifications Label1
NOTE:
Authorized Modification Labels may be ordered in packages of 25 from the Materials
Distribution Center (MDC) through Dealer Daily Dealer Support Materials System or by
calling the MDC at 1±800±622±2033.
SPECIAL SERVICE TOOLS (SSTs)PART NUMBERQUANTITY
Lexus Diagnostic Tester Kit*010012701
12 Megabyte Diagnostic Tester Program Card
with version 12.01a Software (or later)*01002593-0051
* Essential SSTs.
NOTE:
Additional Diagnostic Tester Kits, Program Cards, or other SSTs may be ordered by
calling SPX/OTC at 1-800-933-8335.
ENGINEECM (CPU)PREVIOUS CALIBRATION IDNEW CALIBRATION ID
3MZ±FEMain
33350000
33350100
33360000
33360100
Sub5333400053340000
NOTE:
Although the calibration description in the Calibration Update Wizard and on the
Diagnostic Tester reads ª04 ES 330,º these calibrations apply to 2004 and 2005
model year ES 330 vehicles produced before the Production Change Effective VIN
shown on page 1 of this TSIB.
2004 model year ES 330 vehicles, which have been flash reprogrammed using the
procedures in this TSIB, will contain upgraded 2005 model year OBD II logic. Refer
to the 2005 model year ES 330 Repair Manual information on the Technical
Information System (TIS) when checking Powertrain Diagnostic Trouble Codes
(DTCs) on 2004 model year vehicles that have been reprogrammed. Parts
Information
Required
SSTs
Calibration
Identification
Chart

Lexus Supports ASE CertificationPage 1 of 7
Title:
RADIATOR CAP INSPECTION
Models:
All Models
Technical Service
Information Bulletin
March 28, 2005
EG007-05
The procedure for inspecting the radiator cap has been revised. Please refer to the
following procedures when inspecting the radiator cap on all Lexus models.
All Lexus models.
MANUFACTUREREQUIPMENTQTY
Snap±On/Sun
SVTS262A
(or equivalent)Cooling System Tester
(Radiator Cap Tester)1
NOTE:
Additional Lexus Approved Dealer Equipment may be ordered by calling Lexus
Approved Dealer Equipment at 1±800±368±6787.
OP CODEDESCRIPTIONTIMEOFPT1T2
N/ANot Applicable to Warranty±±±±
ENGINE
Introduction
Applicable
Vehicles
Required
Equipment
Warranty
Information

RADIATOR CAP INSPECTION ± EG007-05 March 28, 2005
Page 3 of 7
Type: N±cap, 88 kPa
1. Remove coolant and any foreign
material on rubber points ªA,º ªB,º
and ªC.º
2. Check that points ªA,º ªB,º and ªCº
are not deformed, cracked,
or swollen.
3. Check that points ªCº and ªDº are not
stuck together.
4. Apply engine coolant to points ªBº
and ªCº before using the radiator
cap tester.
Radiator Cap Tester:
Snap±On/Sun P/N SVTS262A
(or equivalent)
5. Before installing the radiator cap
tester, use the applicable radiator cap
adaptor provided in the following SST
kits in conjunction with the radiator
cap tester:
SST P/N 09230±00030±02
(09231±10080±01) or
09230±00020±02 (09231±10060±01)
6. When using the radiator cap tester,
tilt it more than 30 degrees.
7. Pump the radiator cap tester
several times, and check the
maximum pressure.
Pumping speed: 1 pump/second
HINT:
Stop pumping when the valve opens
and read the gauge. The gauge must
be within the standard values listed
below when the pressure valve opens.
The cap is considered OK when the
pressure holds steady or falls very
slowly, but holds within the standard
values listed below for one minute.
Specification:
VALVE OPENING PRESSURESPECIFIED CONDITION
Standard value
(for brand±new cap)74.0 to 103.0 kPa
(0.75 to 1.05 kgf/cm2, 10.7 to 14.9 psi)
Minimum standard value
(for in±service cap)59 kPa (0.60 kgf/cm2, 8.53 psi)
If the maximum pressure is less than the minimum standard value, replace the radiator
cap sub±assembly.
Radiator Cap
Inspection
Procedure
A
C BD N±Cap: 88 kPa
Radiator Cap
Tester
Radiator
Cap305 or more

RADIATOR CAP INSPECTION ± EG007-05 March 28, 2005
Page 4 of 7
Type: N±cap, 108 kPa
1. Remove coolant and any foreign
material on rubber points ªA,º ªB,º
and ªC.º
2. Check that points ªA,º ªB,º and ªCº
are not deformed, cracked,
or swollen.
3. Check that points ªCº and ªDº are not
stuck together.
4. Apply engine coolant to points ªBº
and ªCº before using the radiator
cap tester.
Radiator Cap Tester:
Snap±On/Sun P/N SVTS262A
(or equivalent)
5. Before installing the radiator cap
tester, use the applicable radiator cap
adaptor provided in the following SST
kits in conjunction with the radiator
cap tester:
SST P/N 09230±00030±02
(09231±10080±01) or
09230±00020±02 (09231±10060±01)
6. When using the radiator cap tester,
tilt it more than 30 degrees.
7. Pump the radiator cap tester
several times, and check the
maximum pressure.
Pumping speed: 1 pump/second
HINT:
Stop pumping when the valve opens
and read the gauge. The gauge must
be within the standard values listed
below when the pressure valve opens.
The cap is considered OK when the
pressure holds steady or falls very
slowly, but holds within the standard
values listed below for one minute.
Specification:
VALVE OPENING PRESSURESPECIFIED CONDITION
Standard value
(for brand±new cap)93.3 to 122.7 kPa
(0.95 to 1.25 kgf/cm2, 13.5 to 17.8 psi)
Minimum standard value
(for in±service cap)78.5 kPa (0.80 kgf/cm2, 11.38 psi)
If the maximum pressure is less than the minimum standard value, replace the radiator
cap sub±assembly.
Radiator Cap
Inspection
Procedure
(Continued)
A
C BD N±Cap: 108 kPa
Radiator Cap
Tester
305 or more
Radiator
Cap

RADIATOR CAP INSPECTION ± EG007-05 March 28, 2005
Page 5 of 7
Type: Compact Cap, 88 kPa
1. Remove coolant and any foreign
material on rubber points ªA,º ªB,º
and ªC.º
2. Check that points ªAº and ªBº
are not deformed, cracked,
or swollen.
3. Check that points ªBº and ªCº are not
stuck together.
4. Apply engine coolant to point ªBº
before using the radiator
cap tester.
Radiator Cap Tester:
Snap±On/Sun P/N SVTS262A
(or equivalent)
5. Before installing the radiator cap
tester, use the applicable radiator cap
adaptor provided in the following SST
kits in conjunction with the radiator
cap tester:
SST P/N 09230±00030±02
(09231±10080±01) or
09230±00020±02 (09231±10060±01)
6. When using the radiator cap tester,
tilt it more than 30 degrees.
7. Pump the radiator cap tester
several times, and check the
maximum pressure.
Pumping speed: 1 pump/second
HINT:
Stop pumping when the valve opens
and read the gauge. The gauge must
be within the standard values listed
below when the pressure valve opens.
The cap is considered OK when the
pressure holds steady or falls very
slowly, but holds within the standard
values listed below for one minute.
Specification:
VALVE OPENING PRESSURESPECIFIED CONDITION
Standard value
(for brand±new cap)74.0 to 103.0 kPa
(0.75 to 1.05 kgf/cm2, 10.7 to 14.9 psi)
Minimum standard value
(for in±service cap)59 kPa (0.60 kgf/cm2, 8.53 psi)
If the maximum pressure is less than the minimum standard value, replace the radiator
cap sub±assembly.
Radiator Cap
Inspection
Procedure
(Continued)
A
C B Compact Cap: 88 kPa
Radiator Cap
Tester
305 or more
Radiator
Cap