Here's a little trick...

[later, Peter]

you can all join in with. It's very simple & I hope it's new. (my apologies to Dave Mason)

 

I was having trouble finding another keyless remote for the '96 OBW. Ebay was driving me nuts with different #'s on the back ("oh sure it'll work" "I don't know check with your dealer")

SO: I searched for a keyless remote with matching #'s (GOH-MM6 for mine) & low & behold.... CADILLAC! you betcha... less money no hassles.

Just came in from reprogramming it (another breeze) [& some guy wanted to sell me the "reprogramming procedure"] and:

IT DOES WORK!!! I reprogrammed twice because it only opened the driver's door (you reading this Martin) so I did it again... now I can get the dog out of the back with out the key!

SO COOL!!

Later,

Peter

[SevenSisters]

Good tip. Doesn't surprise me though. Subaru is GM.

[later, Peter]

but you know Ford's came up with the same code #'s... none available for cheap though.

I think it has to do with which manufacturer signed up with which security (keyless remote) company.

Later,

Peter

GM, huh?

[MorganM]

Good tip. Doesn't surprise me though. Subaru is GM.

False. GM does not own THAT much of Subaru stock...

[99obw]

The encryption algorithms for key fob technology are owned by only a handfull of companies (TI, Motorola, and Microchip come to mind), so this doesn't surprise me one bit. Good to know, thanks.

[forester2002s]

On a related subject: I was parked on a residential street once, and went out to unlock my Subaru using the keyless remote. I heard a click from a Honda across the road. I pressed my remote again, and another click from the Honda!

 

My remote was unlocking someone else's car. Scary!

[Skip]

so Peter

as we discussed

 

what is getting programed

 

the car's receiver

 

or

 

the remote

 

I say the car's receiver

IT can store and respond to several different

input codes.

 

Thus being able to use several different remotes

 

Possibly only two - thus the problem I had testing the

third remote for my Impreza?

 

.

 

There are no DIP switches to change remote

codes that I know of so each must have

it's own code.

 

The remote is doing the transmitting

not the security system so

 

it must be doing the teaching

and the receiver the learning

[later, Peter]

so Peter

as we discussed

 

what is getting programed

 

the car's receiver

 

or

 

the remote

 

Skip:

As far as I can tell, the remote is "trained" to operate by the receiver in the car. My '99 will accept 4 remotes... however, after the first you must program some of the remotes at least TWICE... I don't quite get why.

I found that the Caddy remote needed to be put throught the cycle two or three times (forgotten already but I know it didn't take after the first attempt).

There is a warning regarding programming... not to do if anyone around you is programming OR USING another remote... don't try this in a parking lot.

It would also seem SKIP, that your other remote didn't program because it's from a different manufacturer or a different model (frequency) that's why I bought the only other one with the correct code GOH-MM6 on the back... even though there were alot of other remotes that looked the same & were for the same year.... there may have been a change by the code people then.

Later,

Peter

[99obw]

Yes the reciever is what is trained. The transmitted uses a complex algorithm to generate a sequence of numbers, each time the transmitter is used the next number in the sequence is transmitted to the receiver. The receiver knows what number to expect next because it uses the same algorithm and is programmed with the same seed.

 

I opened my Jeep fob and it has a Microchip LC554-019 in it. They don't have this particular chip on their website but this one is similar:

 

http://ww1.microchip.com/downloads/en/DeviceDoc/41189a.pdf