2005 LEXUS ES300 check engine

190SJ-01
A01260
A82941
White Red Blue 19-16
- STARTING & CHARGINGCHARGING SYSTEM (3MZ-FE)
2348 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
ON-VEHICLE INSPECTION
1. INSPECT BATTERY (MAINTENANCE- FREE BAT-
TERY)
(a) Check the battery electrolyte level.
(1) Check the electrolyte quantity of each cell.
If the electrolyte quantity is below the recommended amount,
replace the battery.
(b) Check the battery voltage.
(1) If it has been less than 20 minutes since you
stopped driving the vehicle or since the engine was
stopped, turn the ignition switch and electrical sys-
tems (headlight, blower motor, rear defogger etc.)
to the ON position for 60 seconds. This will remove
the surface charge on the battery.
(2) Turn the ignition switch and electrical systems OFF.
(3) Using a voltmeter, measure the battery voltage be-
tween the negative (-) and positive (+) terminals of
the battery.
Standard voltage: 12.5 to 12.9 V at 20C (68F)
If the voltage is less than the specification, charge the battery.
(c) Check the indicator as shown in the illustration.
HINT:

Blue: OK

White: Charging Necessary

Red: Insufficient Water
2. INSPECT BATTERY (EXCEPT MAINTENANCE-FREE
BATTERY)
(a) Check the battery electrolyte level.
(1) Check the electrolyte quantity of each cell.
If the electrolyte quantity is below the recommended amount,
add distilled water.

A01259
A01260
A82941
White Red Blue
B00543
- STARTING & CHARGINGCHARGING SYSTEM (3MZ-FE)
19-17
2349 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(b) Check the battery specific gravity.
(1) Check the specific gravity of each cell.
Standard specific gravity: 1.25 to 1.29 at 20C (68F)
If the specific gravity is less than specification, charge the bat-
tery.
(c) Check the battery voltage.
(1) If it has been less than 20 minutes since you
stopped driving the vehicle or since the engine was
stopped, turn the ignition switch and electrical sys-
tems (headlight, blower motor, rear defogger etc.)
to the ON position for 60 seconds. This will remove
the surface charge on the battery.
(2) Turn the ignition switch and electrical systems OFF.
(3) Using a voltmeter, measure the battery voltage be-
tween the negative (-) and positive (+) terminals of
the battery.
Standard voltage: 12.5 to 12.9 V at 20C (68F)
If the voltage is less than the specification, charge the battery.
(d) Check the indicator as shown in the illustration.
HINT:

Blue: OK

White: Charging Necessary

Red: Insufficient Water
3. INSPECT BATTERY TERMINALS, FUSIBLE LINK AND FUSES
(a) Visually check the battery terminals.
(1) Check that the battery terminals are not loosened or corroded.
(b) Visually check the fusible link and fuses.
(1) Check that there is continuity of the fusible links, high current fuses and regular fuses.
4. INSPECT V-RIBBED BELT
(a) Visually check the belt for excessive wear, frayed cords,
etc.

If any defects are found, replace the v-ribbed belt.

Cracks on the rib side of the belt are considered ac-
ceptable.
If the belt has chunks missing from the ribs, it should
be replaced.

B00540
A88419
Disconnect Wire
from Terminal B
Generator Voltmeter
BatteryAmmeter 19-18
- STARTING & CHARGINGCHARGING SYSTEM (3MZ-FE)
2350 Author
: Date
:
2005 LEXUS ES330 REPAIR MANUAL (RM1124U)
(b) Check that the belt fits properly in the ribbed grooves.
Confirm that the belt has not slipped out of the groove on the
bottom of the pulley by hand.
5. INSPECT GENERATOR WIRING
(a) Visually check the generator wiring.
(1) Check that the wiring is in good condition.
6. INSPECT ABNORMAL NOISES
(a) Listen to abnormal noises from generator.
(1) Check that no abnormal noise is heard from the generator while the engine is running.
7. INSPECT CHARGE WARNING LIGHT CIRCUIT
(a) Turn the ignition switch ON. Check that the charge warning light comes on.
(b) Start the engine, then check that the light goes off.
If the light does not operate as specified, troubleshoot the charge warning light circuit.
8. INSPECT CHARGING CIRCUIT WITHOUT LOAD
(a) If a tester is not available, connect a voltmeter to the
charging circuit as follows.
(1) Disconnect the wire from terminal B of the genera-
tor, then connect it to the negative (-) lead of the
ammeter.
(2) Connect the positive (+) lead of the ammeter to ter-
minal B of the generator.
(3) Connect the positive (+) lead of the voltmeter to ter-
minal B of the generator.
(4) Ground the negative (-) lead of the voltmeter.
(b) Check the charging circuit.
(1) Keep the engine speed at 2,000 rpm, then check
the reading on the ammeter and voltmeter.
Standard amperage: 10 A or less
Standard voltage: 13.2 to 14.8 V
9. INSPECT CHARGING CIRCUIT WITH LOAD
(a) With the engine running at 2,000 rpm, turn the high beam headlights ON and turn the heater blower
switch to the ºHIº position.
(b) Check the reading on the ammeter.
Standard amperage: 30 A or more

If the ammeter reading is less than the standard amperage, repair the generator.

If the battery is fully charged, the indication will sometimes be less than the standard amperage.

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

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