Toyota Sequoia (2005). Manual - part 889

 

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Toyota Sequoia (2005). Manual - part 889

 

 

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

*2

within
15 secs.

within
20 secs.

All doors closed. No key in the key cylinder.

BODY ELECTRICAL

ENGINE IMMOBILISER SYSTEM

BE–141

3545

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 Amplifier

ECM

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 ELECTRICAL

ENGINE IMMOBILISER SYSTEM

3546

LOCATION

BE2D6–02

I10154

I24870

12

6

BODY ELECTRICAL

ENGINE IMMOBILISER SYSTEM

BE–143

3547

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.

Condition

Tester connection

Specified condition

Always

6 – 12

Battery 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.

BE0FY–32

I28423

Horn

Horn Switch

Engine Room J/B



 HORN Relay



 HORN Fuse

BE–144

BODY ELECTRICAL

HORN SYSTEM

3548

HORN SYSTEM

LOCATION

 

 

 

 

 

 

 

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