2005 LEXUS ES300 service indicator

01-8- INTRODUCTIONTERMS FOR AUTOMATIC TRANSAXLE REPAIR
MANUAL
8 Author
: Date
:
U151E, U151F A/T REPAIR MANUAL (RM1021U) ISC
Idle Speed Control-
KSKnock SensorKnock Sensor
MAFMass Air FlowAir Flow Meter
MAPManifold Absolute PressureManifold Pressure
Intake Vacuum
MCMixture Control
Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDPManifold Differential Pressure-
MFIMultiport Fuel InjectionElectronic Fuel Injection (EFI)
MILMalfunction Indicator LampCheck Engine Light
MSTManifold Surface temperature-
MVZManifold Vacuum Zone-
NVRAMNon-V olatile Random Access Memory-
O2SOxygen SensorOxygen Sensor, O2 Sensor (O2S)
OBDOn-Board DiagnosticOn-Board Diagnostic (OBD)
OCOxidation Catalytic ConverterOxidation Catalyst Converter (OC), CC0
OPOpen LoopOpen Loop
PAIRPulsed Secondary Air InjectionAir Suction (AS)
PCMPowertrain Control Module-
PNPPark/Neutral Position-
PROMProgrammable Read Only Memory-
PSPPower Steering Pressure-
PTOXPeriodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAMRandom Access MemoryRandom Access Memory (RAM)
RMRelay Module-
ROMRead Only MemoryRead Only Memory (ROM)
RPMEngine SpeedEngine Speed
SCSuperchargerSupercharger
SCBSupercharger Bypass-
SFISequential Multiport Fuel InjectionElectronic Fuel Injection (EFI), Sequential Injection
SPLSmoke Puff Limiter-
SRIService Reminder Indicator-
SRTSystem Readiness Test-
STScan Tool-
TBThrottle BodyThrottle Body
TBIThrottle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TCTurbochargerTurbocharger
TCCTorque Converter ClutchTorque Converter
TCMTransmission Control ModuleTransmission ECU (Electronic Control Unit)
TPThrottle PositionThrottle Position
TRTransmission Range-
TVVThermal Vacuum ValveBimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV)
TWCThree-W ay Catalytic ConverterThree-W ay Catalytic (TWC)
CC
RO
TWC+OCThree-W ay + Oxidation Catalytic ConverterCCR + CCO
VA FVolume Air FlowAir Flow Meter
VRVoltage RegulatorVoltage Regulator
VSSVehicle Speed SensorVehicle Speed Sensor (Read Switch Type)
WOTWide Open ThrottleFull Throttle

Lexus Supports ASE CertificationPage 1 of 2
Title:
PASSENGER AIRBAG INDICATOR LAMP
Models:
'04 ± '05 ES 330 & RX 330
Technical Service
Information Bulletin
February 22, 2005
EL002-05
The passenger airbag indicator lamp may switch from ON to OFF for front seat
passengers weighing approximately less than 100 pounds, depending on their seating
position. It is important for the front seat passengers to know that proper operation of the
advanced frontal airbag system is highly dependent on the pressure placed on the seat
bottom. Situations that add or subtract sensed weight can result in occupant
misclassification. To minimize this situation:
Check seating posture.
± Passengers should be seated upright with their back against the seatback and
feet on the floor.
Check loading conditions.
± Extra weight from items such as bags or groceries or toys hanging on the
seatback can add to the sensed weight of the front seat passenger.
± A rear seat passenger lifting the front seat with their legs, objects placed under
the front seat, or the front seatback in contact with the rear seat can subtract from
the sensed weight of the front seat passenger.
If the passenger airbag indicator lamp continues to switch ON to OFF after checking the
above conditions, perform the following repair procedure.
NOTE:
The safest place for children is in the rear seat.
Please note that Lexus recommends
that you NEVER
install a rear±facing child restraint in the front passenger seat, even if
the passenger ªAirbag OFFº lamp is illuminated. Please refer to the Owner's Manual
for additional details.
2004 ± 2005 model year ES 330 and RX 330 vehicles produced BEFORE the
Production Change Effective VINs shown on the following page.
OP CODEDESCRIPTIONTIMEOFPT1T2
EL4014R & R Occupant Detection ECU0.789952±33010
89952±480108A74
Applicable Warranty*:
This repair is covered under the Lexus Comprehensive Warranty. This warranty is in
effect for 48 months or 50,000 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.
ELECTRICAL
Introduction
Applicable
Vehicles
Warranty
Information

PASSENGER AIRBAG INDICATOR LAMP ± EL002-05 February 22, 2005
Page 2 of 2
MODELPLANTDRIVETRAINPRODUCTION CHANGE EFFECTIVE VIN
ES 330Tsutsumi2WDJTHBA30G#50024130ES 330Kanto2WDJTHBA30G#55068000
TMK2WDJTJGA3#U#50046500
RX 330
TMK4WDJTJHA3#U#50076003RX 330
TMMC2WD2T2GA3#U#5C021700TMMC4WD2T2HA3#U#5C046800
PREVIOUS PART NUMBERCURRENT PART NUMBERPART NAMEQTY
89952±3301089952±33011
Occupant Detection Computer
1
89952±4801089952±48011Occupant Detection Computer1
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
Occupant Seat Weight Set*
00002±09077±011
* Essential SSTs.
NOTE:
Additional Diagnostic Tester Kits, Program Cards, or other SSTs may be ordered by
calling SPX/OTC at 1-800-933-8335.
1. Unfasten passenger seat and rock the assembly back providing access to the
underside of the seat. For information to unfasten the passenger seat, refer to the
Technical Information System (TIS): 2004 ± 2005 model year ES 330 or RX 330
Repair Manual:
Seat: Front Seat Assembly LH: Overhaul.
2. Disconnect the negative terminal of the vehicle battery.
3. Disconnect electrical connectors from Occupant Detection ECU.
4. Remove and replace the Occupant Detection ECU.
5. Reinstall the seat assembly. For more information, refer to TIS: 2004 ± 2005 model
year ES 330 or RX 330 Repair Manual:
Seat: Front Seat Assembly LH: Overhaul.
Torque: 36.8 Nm (375 kgfcm, 27 ftlbf)
6. Reconnect the negative terminal of the vehicle battery.
7. Perform Zero Point Calibration and Sensitivity Check following prompts in the
Diagnostic tool found under the Occupant Detect menu item (refer to
TSIB No. EL007±03, ª
Occupancy Classification System Calibration
(DTC B1150 & B1650)
.º
8. Reinitialize systems affected by the disconnection of the vehicle battery.
Production
Change
Information
Parts
Information
Required
SSTs
Repair
Procedure