ECU LEXUS ES300 2005 Manual PDF

DIAGNOSTIC TESTER IMMOBILIZER FUNCTIONS ± SS005-01 Revised July 6, 2001
Page 11 of 14
d. Complete the request form and enter the ªSeed Numberº from the Diagnostic
Tester. Click on Submit (Figure 7).
FIGURE 7. REQUEST FORM ON TIS
NOTE:
All fields must be completed.
d
e. TIS will now return the Passcode that needs to be entered into the Diagnostic Tester.
FIGURE 8. RECEIVING PASSCODE FOR DIAGNOSTIC TESTER
NOTE:
The Passcode given by TIS is only valid for one Immobilizer Reset Event.
e
Operation
Procedure
(Continued)
TRANSPONDER
ECU RESET

DIAGNOSTIC TESTER IMMOBILIZER FUNCTIONS ± SS005-01 Revised July 6, 2001
Page 12 of 14
C. Using the numbered keys (0±9) on the Diagnostic Tester, enter the ªPasscode
Numberº received from TIS into the Diagnostic Tester (see Figure 9 below).
Press ENTER to clear all registered transponder codes except the Master key in
the ignition cylinder.
NOTE:
During the reset process do not remove the key from the ignition.
This step takes approximately 16 minutes.
ABC
RESETTING SUCCEEDEDPlease insert PASSCODE
NUMBER from TIS
PASSCODE NUMBER**NOW RESETTING**
Remaining Time
<16> Min.
000414
FIGURE 9. PASSCODE ENTRY
All TRANSPONDER
CODES were successfully
reset.
If a key remains in the IG
cylinder, please remove it. If the key was in the IG
cylinder, do not remove it.
PRESS
[ENTER]
PRESS[ENTER]
Master Keys and Sub key
may be registered by
inserting keys into IG.
*INSERT KEYS NOW*
To turn off auto±
matic registration,
insert a Master key
and cycle IG 5 times
within 10 seconds.
[HINT] On automatic
registration mode,
the security indicator
remains on unless a
key is in the IG
cylinder.
PRESS[ENTER]
PRESS[ENTER]
DE
Following a reset, the Transponder ECU is in auto registration mode.
Auto registration mode allows 3 Master Keys and one Sub Key to register
automatically.
To register additional keys, remove the Master Key currently in the ignition.
Insert keys (Master or Sub) into the ignition cylinder without turning the
ignition on or off ± simply insert and remove. (See Figure 9, screen D.)
NOTE:
If 4 keys are registered at this time, auto registration mode is automatically closed.
If less than 4 keys are registered at this time, auto registration mode must be closed
manually by cycling the ignition ON/OFF more than 5 times in 10 seconds. (See
Figure 9, screen E.)
If more than 4 keys need to be registered, use Transponder Code Registration. Operation
Procedure
(Continued)
TRANSPONDER
ECU RESET

DIAGNOSTIC TESTER IMMOBILIZER FUNCTIONS ± SS005-01 Revised July 6, 2001
Page 13 of 14
D. Verify that keys are registered correctly by starting the engine with each newly
registered key.
NOTE:
If the vehicle starts, the new key code was registered correctly.
If the vehicle does not start with any key, perform the Immobilizer Reset function
again.
If only one of the registered keys will not start the vehicle, attempt to register the
key again following the Transponder Code Registration procedure (page 5 of
this bulletin).
5. Transponder ECU Replacement
When the Transponder ECU is replaced, the transponder keys must be registered,
auto registration closed, and ECU communication completed.
A. Replacement transponder ECUs are in auto registration mode. This allows
transponder keys to automatically register as they are inserted into the ignition
cylinder. It is possible to automatically register 3 Master Keys, and 1 Sub Key.
NOTE:
If 4 keys are registered at this time, auto registration mode is closed.
If less than 4 keys are registered at this time, auto registration mode must be closed
manually by cycling the ignition ON/OFF more than 5 times in 10 seconds.
If more than 4 keys need to be registered, use Transponder Code Registration
procedure (page 5 of this bulletin).
B. Once auto registration mode is closed, ECU Communication must be performed
between the transponder ECU and the Engine ECU. Complete ECU
communication using the following steps:
a. Insert registered Master Key into the ignition cylinder.
b. Turn ignition ON (engine OFF).
c. Short Tc and CG terminals of DLC3 using Diagnosis Check Wire
(SST 09843±18040 or equivalent) and leave for 30 minutes. (See Figure 10.)
16 15 14 13 12 11 10 9
87 654321
View of Connector Is From Passenger Compartment
FIGURE 10. DLC3
Tc = Pin 13
CG = Pin 4SST 09843±18040
d. After 30 minutes, turn ignition OFF and remove check wire from DLC3
e. Start the vehicle to confirm successful ECU communication.
NOTE:
If ECU communication is not completed correctly, the engine will not start and DTC
B2799 will be set. DTC B2799 will be cleared after engine starts correctly. Operation
Procedure
(Continued)
TRANSPONDER
ECU RESET
TRANSPONDER
ECU
REPLACEMENT

DIAGNOSTIC TESTER IMMOBILIZER FUNCTIONS ± SS005-01 Revised July 6, 2001
Page 14 of 14
HINT:
The security indicator light reveals the following information:
Always ON and NO key in IG
* = Transponder ECU in Auto Registration mode
Blinking and NO key in IG = Normal operation
Blinking Code 21 = Transponder Code Registration failed
Blinking Code 22 = Attempt was made to register an already
registered Transponder Code
* Immediately after the transponder ECU is installed, the security indicator will blink.
Blinks Code 2±2Code 2±1
1.8 sec
0.2
sec0.25 sec
0.25
sec1 sec
0.5
sec0.25 sec
0.25
sec1 sec
0.5
sec
6. Engine ECU Replacement
When the Engine ECU is replaced, ECU communication must be completed.
ECU Communication must be performed between the transponder ECU and the
Engine ECU. Complete ECU communication using the following steps:
A. Insert registered Master Key into the ignition cylinder.
B. Turn ignition ON (engine OFF).
C. Short Tc and CG terminals of DLC3 using Diagnosis Check Wire
(SST 09843±18040 or equivalent) and leave for 30 minutes. (See Figure 11.)
16 15 14 13 12 11 10 9
87 654321
FIGURE 11. DLC3
Tc = Pin 13
CG = Pin 4SST 09843±18040
View of Connector Is From Passenger Compartment
D. After 30 minutes, turn ignition OFF and remove check wire from DLC3
E. Start the vehicle to confirm successful ECU communication.
NOTE:
If ECU communication is not completed correctly, the engine will not start and DTC
B2799 will be set. DTC B2799 will be cleared after engine starts correctly. Operation
Procedure
(Continued)
TRANSPONDER
ECU
REPLACEMENT
ENGINE ECU
REPLACEMENT

RESET MEMORY FUNCTION ± TC002-03 Revised May 5, 2003
Page 2 of 3
SPECIAL SERVICE TOOLS (SSTs)PART NUMBERQUANTITY
Lexus Diagnostic Tester Kit*010012701
CAN Interface Module Kit*010027441
12 Megabyte Diagnostic Tester Program Card
with version 12.01a Software (or later)*01002593-0051
* Essential SSTs.
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.
1. Connect the Lexus Diagnostic Tester to the vehicle.
2. Reset the ECM (PCM). Refer to the procedures below.
DO YOU WISH TO
RESET THE ECM?
[YES] to CONTINUE
[NO] to EXIT
2: CUSTOMIZE
3: ECU REPROGRAMFUNCTION SELECT FOR
NORTH AMERICA
B
*APPLICATION SELECT*
A
1: DIAGNOSISDIAGNOSTIC MENU
ENGINE
C
DO NOT USE THIS
FUNCTION UNLESS
INSTRUCTED BY
REPAIR MANUAL.RESET MEMORY
E
RESET MEMORY
NOTICE
D
[YES]
F
1: OBD/MOBD
3: CARB OBD II
4: BREAK±OUT BOX
5: NVH
6: AUTOPROBE
7: 02 RPM CHECK
8: SNAPSHOT REVIEW
9: SETUP
0: GAS ANALYSIS2: ENHANCED OBD II1: DATA LIST
2: DTC INFO
3: ACTIVE TEST
4: SNAPSHOT
5: SYSTEM CHECK
6: RESET MEMORY
7: MONITOR STATUS
8: CHECK MODE
6: RESET MEMORY
ONLY USE AFTER
REPLACING THE ENGINE,
AUTO TRANS, OR ECM
ON CERTAIN VEHICLES.EXECUTING THIS
FUNCTION WILL RESET
THE LEARNED VALUES
IN THE ECM.RESET MEMORY
RESETTING COMPLETE
PRESS
[ENTER]
3. Start the engine and warm it up to normal operating temperatures before test±driving.
4. Perform a thorough test drive with several accelerations from a stop with ªlight
throttleº application until proper transmission shifting is verified.
Required
SSTs
Reset
Procedure 1

ECM CALIBRATION: SHIFTING ENHANCEMENT ± TC004-03 Revised August 4, 2003
Page 5 of 6
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
33341300
53328300
NOTE:
If Calibration ID matches ªPrevious Calibration IDº as shown in Calibration
Identification Chart on page 3, 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)
Follow the procedures outlined in Lexus TSIB No. SS001±01,
ªECU Flash
Reprogramming Process,º
and flash the ECM (PCM) with the new calibration
file update.
NOTE:
If the ªCheck Engineº light is ON when the ignition is turned back on to begin the
reprogramming process, a scan tool cable problem exists. Refer to TSIB No.
SS001±01,
ªECU Flash Reprogramming Process.º
Repair
Procedure
(Continued)

ECM CALIBRATION: SHIFTING ENHANCEMENT ± TC004-03 Revised August 4, 2003
Page 6 of 6
5.Reset the ECM (PCM) learned values using the diagnostic tester. Refer to the
procedures below.
± The sample screen prints seen below are the 12.01a software version and may
differ from subsequent software versions.
NOTE:
Failure to reset the ECM (PCM) memory will result in continued ATM shifting complaints.
DO YOU WISH TO
RESET THE ECM?
[YES] to CONTINUE
[NO] to EXIT
2: CUSTOMIZE
3: ECU REPROGRAMFUNCTION SELECT FOR
NORTH AMERICA
B
*APPLICATION SELECT*
A
1: DIAGNOSISDIAGNOSTIC MENU
ENGINE
C
DO NOT USE THIS
FUNCTION UNLESS
INSTRUCTED BY
REPAIR MANUAL.RESET MEMORY
E
RESET MEMORY
NOTICE
D
[YES]
F
1: OBD/MOBD
3: CARB OBD II
4: BREAK±OUT BOX
5: NVH
6: AUTOPROBE
7: 02 RPM CHECK
8: SNAPSHOT REVIEW
9: SETUP
0: GAS ANALYSIS2: ENHANCED OBD II1: DATA LIST
2: DTC INFO
3: ACTIVE TEST
4: SNAPSHOT
5: SYSTEM CHECK
6: RESET MEMORY
7: MONITOR STATUS
8: CHECK MODE
6: RESET MEMORY
ONLY USE AFTER
REPLACING THE ENGINE,
AUTO TRANS, OR ECM
ON CERTAIN VEHICLES.EXECUTING THIS
FUNCTION WILL RESET
THE LEARNED VALUES
IN THE ECM.RESET MEMORY
RESETTING COMPLETE
PRESS
[ENTER]
Figure 3. ECM (PCM) Learned Values Reset
6. 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).
7. Start the engine and warm it up to normal operating temperature before test±driving.
8. Test drive vehicle to confirm proper vehicle operation.
9. Enter the required information on the Authorized Modifications Label and affix it to the
vehicle at the location shown in Figure 1 (page 4). The Authorized Modifications
Label is available through the MDC, P/N 00451±00001±LBL.
10. Calibration update is complete.
NOTE:
Select premium unleaded gasoline with an Octane Rating of 91 (Research Octane
Number 96) or higher for optimum engine performance.
The effect of the new calibration may become more apparent after several days
of driving as the ECM (PCM) ºlearned valuesº are re±established from the
customer 's driving. Repair
Procedure
(Continued)