Problem programming key FOB

[Master Yoder]

I have a 2002 SR5 4Runner.

I used the instructions from this site...

2002 Toyota 4Runner - Free Keyless Remote Fob Entry programming instructions, procedures for all automotive vehicles

And everything seems to go fine and near the last step the lock cycle automatically so I think it is working fine but when I press the unlock and lock button and then press the lock button it doesn't program it for the 4Runner.

I am using a key FOB that goes to my 2005 Avalon, would this be a problem?

When I tried it the Avalon was next to the 4Runner, would that cause some kind of interference and prevent me from programming the 4Runner into the FOB?

My goal is to use the same key FOB for the 4Runner and Avalon.

Thanks,

 

[Master Yoder]

Do you have to use certain key FOB's for a car or are they pretty much interchangeable?

 

[Nelsonmd]

Check the FCC ID on the back of the avalon fob, and see if it is the same as your 4runner fob. I think the Avalon has a different FCC IC.

There would not be interference since the key fob is the thing sending signal.

 

[Master Yoder]

Yep thats the problem. Thanks for the tip.

Is it possible to get a FOB that works with multiple FCC ID's?

 

[Qyota]

I don't know why some of you guys capitalize "fob", as if it's an acronym for something. It's just fob.

And no I don't think you can buy "universal" fobs, as they are operate on specific frequencies, and are programmed with unique identifiers.