Programming a master or valet key (2 Viewers)

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Trunk Monkey

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This is known to work for 98-02 LC/LX and possibly 05-07. 03/04 supposedly have a different transponder chip in the key which requires dealer programming. Heavy YMMV on all of this with model year differences and numerous different sequences floating around out there.

Steps taken from Locksmith Charley:

http://www.locksmithcharley.com/toyota-obp-e-instructions.pdf

Of primary importance is determining if you have a key that is enrolled in the car’s computer as a “master” key or a “valet” key. The procedure for making this determination is:

1. Positively locate the “security” or “anti-theft” light. This light should blink when there is no key in the ignition or if an unrecognized key is placed into the ignition.
2. Insert the key you have into the ignition – DO NOT TURN ON.

There are 3 possible things that may occur:
(a) Security light continues to blink = unrecognized key.
(b) Security light goes off IMMEDIATELY = MASTER key
(c) Security light remains illuminated for 1-3 seconds before going out = VALET key

A master key allows you to program more keys. A valet key cannot enter the programming sequence, so it can only start the car. If you find from the above that you have only a valet key, you can try having your ECU flashed (contact info in pdf link).

Once you have determined that you have an enrolled MASTER key you may proceed to either:
(a) delete all other keys from the car’s computer
(b) add an additional MASTER key to the car’s computer.
(c) add an additional VALET key to the car’s computer.
 
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Trunk Monkey

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A - Delete all keys other than present master key

1. Make sure all windows are rolled up and all doors are shut.
2. From outside the car LOCK the car door with the key.
3. From outside the car UNLOCK the car door with the key.
4. Enter vehicle and close the door.
5. Start the car’s engine.
6. Turn engine off and remove key.
7. Place master key in the ignition lock. (DO NOT TURN ON.)
8. Within 15 seconds press and release the gas pedal 6 times.
9. Within 20 seconds, forcefully press and release the brake pedal 7 times. The Security light will blink.
10. Within 10 seconds, remove the master key. All other keys should be deleted from the car’s computer.
 

Trunk Monkey

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B - add an additional MASTER key to the car’s computer

1. Make sure all windows are rolled up and all doors are shut.
2. From outside the car LOCK the car door with the key.
3. From outside the car UNLOCK the car door with the key.
4. Enter vehicle and close the door.
5. Start the car’s engine.
6. Turn engine off and remove key.
7. Place master key in the ignition lock. (DO NOT TURN ON.)
8. Press and release the gas pedal 5 times.
9. Forcefully press and release the brake pedal 6 times.
10. Remove key
11. Place new key in the ignition lock. (DO NOT TURN ON.)
12. Press and release the gas pedal 1 time.
13. Wait (about 1 minute) for security light to stop blinking.
14. Remove new key from the ignition lock.
15. Press brake pedal 1 time to close programming cycle.
16. Wait 15 seconds for programming cycle to end
17. Insert new key into ignition lock and start the vehicle.
 
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Trunk Monkey

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C - add an additional VALET key to the car’s computer

1. Make sure all windows are rolled up and all doors are shut.
2. From outside the car LOCK the car door with the key.
3. From outside the car UNLOCK the car door with the key.
4. Enter vehicle and close the door.
5. Start the car’s engine.
6. Turn engine off and remove key.
7. Place master key in the ignition lock. (DO NOT TURN ON.)
8. Press and release the gas pedal 4 times.
9. Forcefully press and release the brake pedal 5 times.
10. Remove key
11. Place new key in the ignition lock. (DO NOT TURN ON.)
12. Press and release the gas pedal 1 time.
13. Wait (about 1 minute) for security light to stop blinking.
14. Remove new key from the ignition lock.
15. Press brake pedal 1 time to close programming cycle.
16. Wait 15 seconds for programming cycle to end
17. Insert new key into ignition lock and start the vehicle.
 

Trunk Monkey

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User mudpup555 found the following instructions buried in a thread for programming the immobilizer in an 05-07;

1. Start with all doors closed
2. Insert and then remove master key in the ignition cylinder 5 times, leaving it inserted on 5th time.
3. Open and close driver's door 6 times, leaving it closed on 6th time.
4. Remove master key from the ignition cylinder. Verify security light is continuously illuminated.
5. Insert new key into ignition cylinder. Security light will blink for 60 seconds then extinguish.
6. Remove key from ignition cylinder, open driver's door to cancel programming mode.
7. Test operation of new key by validating response of security light to a master key, and starting the engine.

He verified it worked on his 06.
 
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