2001 TOYOTA SEQUOIA ECU

BE17F±08
I28418
Instrument Panel J/B

PWR SEAT Fuse

ECU±IG Fuse
Power Seat Motor
(Reclining)Lumbar Support Control Motor
Power Seat Motor (Slide)
Power Seat Motor (Slide)
Power Seat Motor (Front Vertical) Power Seat Motor (Rear Lifter)
Power Seat SwitchPower Seat Motor
(Reclining)
Lumbar Support
Control Switch
BE±108
± BODY ELECTRICALPOWER SEAT CONTROL SYSTEM
3512 Author: Date:
2005 SEQUOIA (RM1146U)
POWER SEAT CONTROL SYSTEM
LOCATION

BE2D8±03
I28420
Electro Chromic Inner Mirror
Instrument Panel J/B

ECU±IG Fuse
± BODY ELECTRICALELECTRO CHROMIC MIRROR SYSTEM
BE±121
3525 Author: Date:
2005 SEQUOIA (RM1146U)
ELECTRO CHROMIC MIRROR SYSTEM
LOCATION

BE0G3±10
I28422
Instrument Panel J/B

ECU±IG Fuse

GAUGE FuseOverhead Module

GAUGE Door Opener Switch
BE±132
± BODY ELECTRICALGARAGE DOOR OPENER SYSTEM
3536 Author: Date:
2005 SEQUOIA (RM1146U)
LOCATION

START
Insert the key in the key cylinder.
Under registration
Registration completion
Remove the key.
Will you register the
next key?
NoSecurity indicator blinks until the first
key is inserted. The indicator comes
on after the key registration.
Security Indicator
OFF
END Ye s
Security Indicator ON
(After the last key (sub±key) has been
registered, the indicator remains OFF
until the key is removed. After the key
is removed, the indicator blinks.)
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
BE±137
3541 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE IMMOBILISER SYSTEM
REGISTRATION PROCEDURE
HINT:
If you lose all the registered master keys, you cannot registrar or delete additionally. Change the transponder
key ECU and then register the new key codes following the registration procedure of the automatic registra-
tion mode below.
1. KEY REGISTRATION IN AUTOMATIC REGISTRATION MODE
(a) Registration of a new transponder key.
HINT:

This procedure must be done when you install a new transponder key ECU.

The new transponder key ECU is in automatic key code registration mode. The key codes already fixed
for this transponder key ECU can be registered.
For this type of vehicle, up to 3 key codes can be registered.

In the automatic registration mode, the last key registered becomes a sub±key.

1.8 Sec.
0.2 Sec.
0.25 Sec. 0.5 Sec.0.25 Sec.
1 Sec. Blinks
Code 2±1 Code 2±2
0.25 Sec.
0.25 Sec.0.5 Sec. 1 Sec. BE±138
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
3542 Author: Date:
2005 SEQUOIA (RM1146U)
HINT:

When a key cannot be inserted in the key cylinder in automatic registration mode, the security indicator
always comes on.

When the immobilizer system operates normally and the key is pull out, the security indicator blinks.

When key code registration could not be performed in automatic registration mode, code 2±1 is output
from the security indicator and when the registered key in inserted, code 2±2 is output.
(b) Automatic registration mode completion
If completing the mode forcibly when more than 1 key codes are registered in automatic registration
mode, perform the following procedures.
After 1 more key codes are registered with the master key, turn the ignition switch LOCK "ON 5 times
within 10 secs. by inserting the registered key or without pulling the key out.

Insert the master key in the key cylinder.
Driver's door: Open " Close 7 times Ignition switch: LOCK " ON 6 times
Remove the master key.START
END
*1
*2within
15 secs.
within
20 secs.
All doors closed. No key in the key cylinder.
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
BE±141
3545 Author: Date:
2005 SEQUOIA (RM1146U)
3. ERASURE OF TRANSPONDER KEY CODE
Do this operation to erase transponder key registration from the transponder key computer.
HINT:
Delete all other master and sub±key codes leaving the master key code to use the operation. When using
the key which was used before deletion, it is necessary to register the code again.
*1: Insert the master cylinder into the key cylinder.
Turn the ignition switch to LOCK " ON 6 times within 15 seconds.
*2: Open and close driver's door 7 times and remove the master key within 20 seconds after completion of
the previous operation.
HINT:

When any operation time described above is over, registration mode completes.

When the next procedure is performed while the timer is working, the timer completes counting time,
then the next timer starts.
4. ECU COMMUNICATION ID REGISTRATION
NOTICE:

The ECU communication ID should be registered when the transponder key ECU and/or the
ECM is replaced, in order to match these ECM COMMUNICATION ID.

The engine cannot be started unless the ECM COMMUNICATION ID matches.
(a) Register the ECU communication ID.
(1) After the transponder key ECU and/or the ECM is replaced, turn the ignition switch ON (the en-
gine is not running).
(2) Short the Tc and CG terminals of the DLC3 and leave it as it is for 30 minutes.
(3) Check that the engine starts.

BE0D8±11
I28395
Transponder Key Coil
Transponder Key AmplifierECM
Instrument
Panel J/B

IGN 1 Fuse
Engine Room J/B

ECU±B Fuse

EFI No. 1 Fuse
Combination Meter

Security Indicator Light
DLC3
Transponder Key ECU
(Located behind the combination meter)
BE±142
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
3546 Author: Date:
2005 SEQUOIA (RM1146U)
LOCATION

BE2D6±02
I10154
I24870
12
6
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
BE±143
3547 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECTION TRANSPONDER KEY COIL CONTINU-
ITY
Check that there is continuity between terminals 1 and 2.
If continuity is not as specified, replace the coil.
2. INSPECT TRANSPONDER KEY ECU CIRCUIT
Connect the wire harness side connector to the ECU and in-
spect the wire harness side connector from the back side, as
shown in the table below.
ConditionTester connectionSpecified condition
Always6 ± 12Battery positive voltage
If the circuit is as specified, replace the ECU with a new one.
If the circuit is not as specified, inspect the circuit connected to
other parts.