ECU LEXUS ES300 2005 Service Manual

M.I.L. ªONº DTC P0346 ± EG006-05 March 15, 2005
Page 4 of 4
2. Connect the Diagnostic Tester to the vehicle and select CURRENT ECU CAL from
the ECU REPROGRAM MAIN MENU. Determine the vehicle's current ECU
calibration (see Figure 2).
± The sample screen prints seen below are the 12.01a software version and may
differ from subsequent software versions.
Figure 2. Determining Current ECU Calibration
ECU REPROGRAM
MAIN MENU
1: GET CAL FROM PC
2: CURRENT ECU CAL
3: UPDATE ECU CAL
4: CAL ON TESTER
5: CLEAR CAL DATA
A
CURRENT ECU CAL
B
CALIBRATION ID
33350000
53334000
NOTE:
If Calibration ID matches ªPrevious Calibration IDº as shown in Calibration
Identification Chart on page 2, proceed with flash reprogramming.
If Calibration ID matches ªNew Calibration IDº as shown in Calibration
Identification Chart, this vehicle has already been programmed.
Refer to TIS for diagnostic procedures applicable to any stored DTCs.
3. If ECU calibration ID is not the same as the ªNew Calibration IDº listed previously,
proceed to Flash Reprogram ECM (PCM).
4. Flash Reprogram ECM (PCM)
A. Follow the procedures outlined in TSIB No. SS001±01,
ªECU Flash
Reprogramming Process,º
and flash the ECM (PCM) with the new calibration
file update.
B. Enter the required information on the Authorized Modifications Label and affix it
to the vehicle at the location shown in Figure 1 (page 3). The Authorized
Modifications Label is available through the MDC, P/N 00451±00001±LBL.
5. Follow the procedures outlined in TSIB No. EG012±04,
ªEntering VIN During ECM
(PCM) Replacement and/or DTC P0630,º
and write the VIN to the ECM (PCM).
6. The repair is complete. Test drive vehicle to confirm normal operation.
Repair
Procedure
(Continued)

ENTERING VIN DURING ECM REPLACEMENT AND/OR DTC P0630 ± EG012-04 Revised October 14, 2004
Page 2 of 3
ITEM
NO.SPECIAL SERVICE TOOLS (SSTs)PART NUMBERQTYDRW**
1
Lexus Diagnostic Tester Kit*
NOTE:
All components from this kit/set are required
12 Megabyte Diagnostic Tester Program Card
(P/N 01002593±005) with version 12.2a Software
(or later) is requiredLEX22003618
2
CAN Interface Module Kit*
NOTE:
All components from this kit/set are required0100274418
* Essential SSTs.
** Refers to drawer number in SST Storage System.
NOTE:
Additional Diagnostic Tester Kits, CAN Interface Modules, Program Cards, or other
SSTs may be ordered by calling SPX/OTC at 1-800-933-8335.
To write a VIN to a replacement ECM
(PCM), use the following process:
1. Confirm the VIN. It is located on the
front left of the instrument panel.
2. Connect the Diagnostic Tester
to DLC3.
3. Turn the ignition switch and
Diagnostic Tester switch ON.
4.All vehicles except RX 400h:
Select from the Diagnostic Tester
menus: DIAGNOSIS, ENHANCED
OBDII, VIN, and VIN WRITE.
RX 400h vehicles:
Select from the Diagnostic Tester
menus: DIAGNOSIS, OBD/MOBD,
HV ECU, VIN, and VIN WRITE.
5. Write the VIN in accordance with the
Diagnostic Tester display.
6. Compare the VIN displayed on the
Diagnostic Tester with the VIN on the
instrument panel. If these are not the
same, write the VIN again after
turning the ignition switch OFF.
Required
SSTs
VIN Write
Procedure
Input a new VIN
PRESS[ENTER]
If you want to clear the VIN,
press [NO] key.
WRITING COMPLETE
PRESS[ENTER]
The following VIN has been
written.
The DTCs have been erased
correctly.

ENTERING VIN DURING ECM REPLACEMENT AND/OR DTC P0630 ± EG012-04 Revised October 14, 2004
Page 3 of 3
1. Connect the Diagnostic Tester
to DLC3.
2. Turn the ignition switch and
Diagnostic Tester switch ON.
3.All vehicles except RX 400h:
Select from the Diagnostic Tester
menus: DIAGNOSIS, ENHANCED
OBDII, VIN, and VIN READ.
RX 400h vehicles:
Select from the Diagnostic Tester
menus: DIAGNOSIS, OBD/MOBD,
HV ECU, VIN, and VIN READ.
4. Check the VIN displayed on the
Diagnostic Tester.
HINT:
For further explanations, refer to the
Technical Information System (TIS),
appropriate model repair manual:
Diagnostics: SFI System: Registration.
VIN Read
Procedure
[ VIN ]
PRESS[EXIT]
*********************************
*********************************
VIN Is Displayed

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

PRE±DELIVERY SERVICE (PDS) INFORMATION FOR ES 330 ± PD002-03 August 26, 2003
Page 2 of 9
D.C.C. FUSE INSTALLATION DURING PDS
The D.C.C. fuse has been removed at the assembly plant to reduce parasitic current
draw in transit and storage.
The removed D.C.C. fuse (30 A) is stored in the blank space of the Junction Block in
the engine compartment. The D.C.C. fuse must be reinstalled during Pre±Delivery
Service (PDS) in the dealership as shown below.
Junction Block
Install D.C.C. Fuse (30 A)
Here (Original Location)Remove This Fuse
NOTE:
Removing the D.C.C. fuse cuts off power sources relating to the Dome, ECU±B and
RAD No. 1 fuses.
If the vehicle is stored in the dealership for a long period of time after PDS,
disconnect the negative battery terminal to prevent battery discharge. Refer to TSIB
PG009±02 for battery maintenance information.
ITEM NO. 1:
Introduction
Installation
Procedure

PRE±DELIVERY SERVICE (PDS) INFORMATION FOR ES 330 ± PD002-03 August 26, 2003
Page 5 of 9
INITIALIZATION OF MOON ROOF
The moon roof is controlled by the sliding roof ECU which detects and memorizes the
moon roof position by counting pulses of its motor from the fully tilt±up position as the
start position. Once the battery terminal has been disconnected and reconnected, the
sliding roof ECU does not detect and memorize the moon roof position, resulting in no
functions of the ªone±touch tilt up and down,º ªone±touch slide open and closeº and ªjam
protection.º Please initialize the moon roof position after reconnecting the battery
terminal as outlined below.
1. Turn the ignition switch to the
ªONº position.
2. Push and hold the moon roof switch
to the ªTILT± UPº side until the moon
roof tilts all the way up and then tilts
down slightly (approximately 10 mm
at rear end).
3. Check for proper operation of the
ªOne±touch slide open and closeº and
ªOne±touch tilt up and downº functions
by pushing the switch briefly to the
ªSLIDE OPENº and ªTILT UPº positions.
NOTE:
Jam protection function becomes
effective through the above
initialization procedure.
ITEM NO. 4:
Introduction
Initialization
Procedure
Approx. 10 mm

PRE±DELIVERY SERVICE (PDS) INFORMATION FOR ES 330 ± PD002-03 August 26, 2003
Page 9 of 9
INSTALLATION OF RUBBER BODY PLUGS
The ES 330 is provided with front and rear torque box holes to tie down the vehicle by
wire or carrier truck transportation.
Four (4) rubber body plugs are included in the glove compartment at the assembly plant.
Install them into the two (2) front and two (2) rear torque box holes during Pre±Delivery
Service (PDS).
NOTE:
If the rubber body plugs are not securely installed, road (tire) noise will transfer to the
vehicle interior through the torque box holes and rust could occur inside the torque
boxes by water entry.
Front Torque Box Hole Rear Torque Box Hole
FrontFront
ITEM NO. 6:
Introduction
Installation
Procedure

Lexus Supports ASE CertificationPage 1 of 1
Title:
DCC FUSE INSTALLATION DURING PDS
Models:
'05 ± '06 ES 330
Technical Service
Information Bulletin
August 22, 2005
PD032-05
The DCC fuse has been removed at the assembly plant to reduce parasitic current
draw in transit and storage.
2005 ± 2006 model year ES 330 vehicles.
The removed DCC fuse (30A) is stored in the blank space of the Junction Block in
the engine compartment. The DCC fuse must be reinstalled during Pre-Delivery Service
(PDS) in the dealership as shown below.
Junction Block
Install DCC Fuse (30A)
Here (Original Location)Remove This Fuse
NOTE:
Removing the DCC fuse cuts off power sources relating to the DOME, ECU±B, and
RAD No. 1 fuses.
If the vehicle is stored in the dealership for a long period of time after PDS,
disconnect the negative (±) battery terminal to prevent battery discharge. Refer to
TSIB No. PG009±02, ª
Battery Maintenance for In-Stock Vehicles & Pre-Delivery,º for
battery maintenance information.
OP CODEDESCRIPTIONTIMEOFPT1T2
N/ANot Applicable to Warranty±±±±
PRE-DELIVERY SERVICE
Introduction
Applicable
Vehicles
Installation
Procedure
Warranty
Information

Lexus Supports ASE CertificationPage 1 of 1
Title:
INITIALIZATION OF MOON ROOF
DURING PDS
Models:
'05 ± '06 ES 330
Technical Service
Information Bulletin
August 22, 2005
PD033-05
The moon roof is controlled by the sliding roof ECU, which detects and memorizes the
moon roof position by counting pulses of its motor from the fully ªTILT-UPº position as
the start position. Once the battery terminal has been disconnected and reconnected,
the sliding roof ECU does not detect and memorize the moon roof position, resulting in
no functions of the ªone-touch tilt up and down,º ªone-touch slide open and close,º and
ªjam protection.º Initialize the moon roof position after reconnecting the battery terminal
as outlined below.
NOTE:
Any time the battery terminal has been disconnected, initialize the moon roof after
reconnecting the battery terminal.
2005 ± 2006 model year ES 330 vehicles.
1. Turn the ignition switch to the
ªONº position.
2. Push and hold the moon roof switch
to the ªTILT-UPº side until the moon
roof tilts all the way up and then tilts
down slightly (approximately 10 mm
[0.39 in.] at rear end).
3. Check for proper operation of the
ªone-touch slide open and closeº and
ªone-touch tilt up and downº functions
by pushing the switch briefly to the
ªSLIDE OPENº and ªTILT-UPº positions.
NOTE:
Jam protection function becomes
effective through the above
initialization procedure.
OP CODEDESCRIPTIONTIMEOFPT1T2
N/ANot Applicable to Warranty±±±±
PRE-DELIVERY SERVICE
Introduction
Applicable
Vehicles
Initialization
Procedure
Approx. 10 mm
Warranty
Information