Toyota Tundra. Manual — part 364

Fig. 4: Security Indicator Light Blinking Pattern
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HINT:



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



If the new key code registration fails, code 2-1 is output by the security indicator light.
Trying to reregister an already registered key causes code 2-2 to be output when the

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Engine Immobilizer - Tundra

key is inserted. If the number of registered key codes exceeds the limit, code 2-3 is
output by the security indicator light.

3. REGISTRATION OF ADDITIONAL KEY (PROCEDURE "A")

a. Additional key code registration

HINT:



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



In this mode, a maximum of 5 master key codes and 3 sub-key codes can be registered.



This mode ends if each step is not completed within the specified time.



When the ignition key cylinder or the ignition key cylinder set is replaced, remove the
transmitter module from the original master key. Then install this transmitter module to a
new key and use the new key as the master key. If necessary, use this master key to register
other keys.

REGISTRATION OF ADDITIONAL KEY (PROCEDURE "A") REFERENCE

NOTE:

When only the ignition key cylinder has been replaced, the new key
cannot be used to lock or unlock doors. Therefore, keep the original
key for locking and unlocking doors in order to avoid being locked
out of the vehicle if the transmitter battery becomes depleted.

Procedure

Security Indicator

Light Condition

Time (Completion of

operation)

1. Start registration.

Security indicator
light is blinking.

-

2. Insert an already registered master key into the
ignition key cylinder, turn the ignition switch ON,
and turn the tester ON.

Security indicator
light turned off.

Within 120 SEC.

3. Select following items on the tester:

1. Body Electrical

2. Immobilizer

3. ID Utility

4. Immobilizer Code Registration

Security indicator
light turned on.

4. Remove the master key and then push NEXT
button on tester.

Security indicator
light turned on.

Within 20 SEC. of the

instruction on the tester.

5. Insert unregistered key into the ignition key
cylinder.

Security indicator
light is blinking.
HINT:
Registration is
being performed.

Within 10 SEC.

6. After 60 SEC, key is registered.
HINT:

Security indicator
light turned off.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Engine Immobilizer - Tundra

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".

4. 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.

ERASURE OF KEY CODE (PROCEDURE "D") REFERENCE

The security indicator light turns 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.

Within 120 SEC.

3. Select following items on the tester:

1. Body Electrical

Security indicator light

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Engine Immobilizer - 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.

ERASURE OF KEY CODE (PROCEDURE "D") REFERENCE

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.

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

2. Immobilizer

3. ID Utility

4. Immobilizer Code Erasure

turned on for 1 SEC. then
turned off.

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 ACCESSORIES AND EQUIPMENT Engine Immobilizer - Tundra