I've ordered a 2nd masterkey off of eBay but the instructions I downloaded off of the internet don't seem to work. I'm getting frustrated w/ the whole deal because I had lots of problems getting the key cut in the first place because my used 2001 IS 300 had the ignition switch changed so it has a new key code different from the original one that's matched to the VIN. Either way, the key opens the door and is cut right but I cannot get the thing programmed. HELP!!!

Matt

For 1998+ Toyota, Lexus
Add Duplicate Key
1. Simultaneously depress and release brake and accelerator pedals 1 time.
2. Insert existing master key into ignition.
3. Within 15 seconds depress and release accelerator pedal 5 times.
4. Within 20 seconds depress and release the brake pedal 6 times and
remove key.
5. Within 10 seconds insert new key into ignition.
6. Within 10 seconds depress and release the accelerator pedal 1 time.
7. After 80 seconds new key is registered and security light goes off.
8. Remove new key and depress and release brake pedal 1 time.

For 2002+ Toyota, Lexus
Add Duplicate Key
Requires one working Toyota/Lexus Master Key.
1. Make sure all doors and windows are closed.
2. Insert Master key into the ignition cylinder.
3. Cycle the ignition cylinder from On to OFF five times.
4. Open and close the “driver side” door 6 times.
5. Remove the Master Key and insert the new duplicates key.
6. TURN THE IGNITION CYLINDER ON.
7. The new key will be registered after 60 seconds. The THEFT light on the dashboard will go out, indicating that programming has been completed.

http://www.kaba-ilco.com/key_systems/pdf/2005_Auto_Truck_Key_Blank_Reference_[2816-E-0205].pdf

To program the remotes on your new key, you have to go through the door lock exercise using the old programmed key. I spent a lot of time trying to program using the new key and found out that the old key needs to be used when you do the door lock/unlock routine.

hey folks...

does this work with a normal key is which the battery has died?
i have a normal key and the battery died and i replaced the battery but the lock unlock function will not work on the key. i can start the car with the key. its a 03 7th gen celica i own. any ideas?