Toyota Tundra. Manual — part 13

HINT:



A brief outline of the procedures for key code registration is shown above. For more detailed
information, refer to the screen of the Techstream.



When the engine immobilizer system is operating normally and the key is pulled out, the
security indicator light blinks continuously.



If the additional key code registration fails, code 2-1 is output by the security indicator light.
Trying to reregister a previously registered key causes code 2-2 to be output when the key is
inserted. If the number of registered key codes exceeds the limit, code 2-3 is output by the
security indicator light. The output details are shown in procedure "B".

20. ERASURE OF KEY CODE (PROCEDURE "D")

HINT:

All key codes are erased except for the master key which is used for erasing the key codes. In order to use
a key whose code has been erased, a new key code must be registered.

a. Erasure all key codes except master key

HINT:



At least one key code must be registered in the transponder key ECU in order for this mode
to operate normally.



Make sure the inserted key is a registered master key.

PROCEDURE FOR ERASE OF ALL KEY CODES EXCEPT MASTER KEY

being performed.

6. After 60 sec, key is registered.
HINT:
The security indicator light turns off.

Security indicator
light turned off.

-

7. Remove the key.

Security indicator
light is blinking.

8. Tester screen displays number of registered keys.
9. Register another key?
YES: Go to step 2.
NO: Go to step 10.
10. End of registration.

Procedure

Security Indicator Light

Condition

Time (Completion of

operation)

1. Start of erasure.

Security indicator light is
blinking.

-

2. Insert previously registered master key
into ignition key cylinder and turn ignition
switch ON.

Security indicator light
turned off.

2009 Toyota Tundra

2009 GENERAL INFORMATION Introduction - Tundra

b. Erasure all of key codes

HINT:



This mode performs normally, when at least one key codes must be registered in the
transponder key ECU.



Insertion key is either registered key or unregistered key.

PROCEDURE FOR ERASE ALL OF KEY CODES

HINT:



A brief outline of the procedures for key code registration is shown above. For more detailed
information, refer to the screen of the Techstream.



When the engine immobilizer system is operating normally and the key is pulled out, the

3. Select following items on the tester:

1. Body Electrical

2. Immobilizer

3. ID Utility

4. Immobilizer Code Erasure

Security indicator light
turned on for 1 sec. then
turned off.

Within 120 sec.

4. Remove the master key.
HINT:
Key codes are deleted except inserted key.

Security indicator light
turned on.

Within 10 sec. of the

instruction on the tester.

5. End of erasure.

Procedure

Security Indicator Light

Condition

Time (Completion

of operation)

1. Using TIS, confirm that user and vehicle match.

Security indicator light is
blinking.

-

2. Start of erasure.

Security indicator light is
blinking.

-

3. Insert previously registered master key or
unregistered key into ignition key cylinder and
turn ignition switch ON.

Security indicator light
turned off.

Within 120 sec.

4. Select following items on the tester:

1. Body Electrical

2. Immobilizer

3. ID Utility

4. Immobilizer Code Erasure

Security indicator light
turned on for 1 sec. then
turned off.

Within 15 min.

5. Completion of erasure of all key codes is
displayed.

Security indicator light
turned on.

-

6. End of erasure.

2009 Toyota Tundra

2009 GENERAL INFORMATION Introduction - Tundra

security indicator light blinks continuously.

21. ECU - ECM COMMUNICATION ID REGISTRATION (PROCEDURE "C")

a. After replacing the transponder key ECU

Fig. 37: Identifying DLC3 Connector
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1. Register the key code(s) by following the new key code registration procedure (procedure

"B").

2. Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3 before inserting the key into

the key cylinder.

SST 09843-18040

NEW KEY CODE REGISTRATION PROCEDURE

NOTE:



The ECU - ECM communication ID must be registered to the
transponder key ECU and ECM when one of the following occurs in
order to match their IDs: 1) the transponder key ECU is replaced, 2)
the ECM is replaced, or 3) the transponder key ECU and ECM are
replaced.



The SFI system cannot be started unless the ECU - ECM
communication IDs of the transponder key ECU and ECM match.

Procedure

Security Indicator Light

Condition

1. Insert previously registered key into ignition key cylinder
and turn ignition switch ON.
HINT:
Do not start the engine.

Security indicator light
turned off.

2. Leave vehicle as is for 30 min.
3. Turn the ignition switch OFF and disconnect terminals TC
and CG
4. Start engine.

2009 Toyota Tundra

2009 GENERAL INFORMATION Introduction - Tundra

b. After replacing the ECM

1. Register the ECU - ECM communication ID.

NEW KEY CODE REGISTRATION PROCEDURE

c. After replacing the transponder key ECU and ECM

1. Register the key code(s) by following the new key code registration procedure (procedure

"B").

2. Register the ECU - ECM communication ID.

NEW KEY CODE REGISTRATION PROCEDURE

22. DESCRIPTION OF CODE REGISTRATION

HINT:



Recognition code registration is necessary when replacing the door control transmitter or the door
control receiver.



Add mode is used to register new recognition codes while still retaining codes already registered.
This mode is used when a new transmitter is added. If the number of registered codes exceeds 4,
the previously registered codes will be erased in order, starting from the first registered code.



Rewrite mode is used to erase all the previously registered recognition codes in order to register
new recognition codes. This mode is used when the transmitter or the door control receiver is
replaced with a new one.



Confirmation mode is used to confirm how many recognition codes have already been registered
before registering any additional recognition codes.



Prohibition mode is used to erase all the registered codes and disables the wireless door lock
function. This mode is used when the transmitter is lost.



All of the following registration procedures must be performed in order and in a continuous

5. Check that engine starts and stays on for more than 3 sec.
Registration is complete.

Procedure

Security Indicator Light

Condition

1. Insert previously registered key into ignition key cylinder.

Security indicator light
turned off.

2. Start engine.
3. Check that engine starts and stays on for more than 3 sec.
Registration is complete.

Procedure

Security Indicator Light

Condition

1. Insert previously registered key into ignition key cylinder.

Security indicator light
turned off.

2. Start engine.
3. Check that engine starts and stays on for more than 3 sec.
Registration is complete.

2009 Toyota Tundra

2009 GENERAL INFORMATION Introduction - Tundra