FOB, Key, Immob clarification

[txhokie4life]

Got a Boxster that I bought that would not start. Was told that the key/fob was new(er) and that it was either never synched or

the computer forgot the code. Classic answers when buying a car.... Price was right -- so I bought it anyways.

Long story short -- I came to pull the front seat due to water from the rain we've been receiving. Immob was soaked figured it has to be toast --

I pulled it and opened it up -- (I'll post pictures soon) but the whole circuit board is corroded -- obviously not its

first under water excusion --- No wonder it "lost the programming".

So -- I'm trying to figure out just what I need to do.

I can pick up another Immob -- but I believe I need to get the current FOB and DME mated to the Immob -- which can only be done at the dealership.

I also have a FOB/Immob/DME for the same model that came from the same year car that is supposed to be a set. No key tho -- just the FOB.

Does the FOB or the key, have the pill that is required to start it?

My plan of attack is to use the 2nd set to make sure the car is otherwise in running condition, but then pick up a used Immob

and get the current (i.e. the one with the car now) FOB/DME mated to this new (to me) Immob.

Just wanted to make sure I don't have to do something special with the keys.....

thank for following along my sordid tale,

Mike

[Loren]

You will need (all) working keys (with 40 digit ID tags), a working immobilizer, and your car's IPAS security codes.

Then any shop with a PST2 or PIWIS tester can program the keys and immobilizer.

If the old immobilizer is so damaged that the old codes can not be read from it then any keys must have the 40 digit key code to program them.

Keep your IPAS codes secure as they allow this programming.

[txhokie4life]

You will need (all) working keys (with 40 digit ID tags), a working immobilizer, and your car's IPAS security codes.

Then any shop with a PST2 or PIWIS tester can program the keys and immobilizer.

If the old immobilizer is so damaged that the old codes can not be read from it then any keys must have the 40 digit key code to program them.

Keep your IPAS codes secure as they allow this programming.

Where would I find the IPAS codes?

Since I bought this car used -- I'm not sure I have the IPAS codes -- and I'm sure the Immob with the car now is DOA -- I've never

seen a computer board look quite this bad. Massive oxidation and corrosion. No chance it is good.

I do have the radio code tags -- I'll check to see if the IPAS codes are there -- what do they look like?

BTW, define working keys -- there are two --- both physically work (i.e.open door, turn ignition), only one has a FOB unit which I was told

was new -- but likely never programmed.

Lets assume worst case scenario -- no IPAS codes, Immob fried -- then what?

If I can acquire a used but working Immob and can read its IPAS codes -- can it be programmed to work with the current keys, and then the current

DME programmed to match the newly acquired Immob?

thanks for your help,

Mike

[Loren]

You can only get your IPAS codes from a Porsche dealer - and then VIN and with proof of ownership. They are unique to each car.

You will need the IPAS codes to program the immobilizer for keys.

If the old immobilizer can not be read (with a PST2 or PIWIS tester) then you will need the 40 digit code that is unique to each key (to program thekeys to the new immobilizer.

[Tool Pants]

I have a used control unit that goes under the seat 996-260-07. Came from a 1999 but works on 1998-2000. I opened it up to see what it looked like. If I needed to use it this is what I would do.

A used control unit has a code in it that cannot be changed. So I got the VIN from the seller and with that VIN someone gave me the immobiliser code for the used unit. If I put that unit in my car I would have to put that code in the DME or the car would not start.

So that I could use my remotes I would have to get the remote codes out of the old unit and transfer them to the replacement. Problem is sometimes the unit is so fried you cannot get them. But you can get the code off the paper tags if you are lucky to have them. If the unit is fried and you do not have the tags, then you buy new remotes.

But to do any of the above, you need the immobiliser code when dealing with a used unit. You would need a very friendly dealer for that. Then you need a PST2/PIWIS.

[txhokie4life]

You can only get your IPAS codes from a Porsche dealer - and then VIN and with proof of ownership. They are unique to each car.

You will need the IPAS codes to program the immobilizer for keys.

If the old immobilizer can not be read (with a PST2 or PIWIS tester) then you will need the 40 digit code that is unique to each key (to program thekeys to the new immobilizer.

Sounds like this will be quite an adventure :-)

I assume the keys -- and do you mean key or fob? is transmitting via RFID -- can you read the IPAS codes off of them by some RFID reader?

Just to be clear -- the FOB contains the pill which is the RFID unit -- or does the FOB?

I'm sure I'll have a few more questions as I get into this project -- but thank you for your help.

mike

[racerx169]

Does anyone know a dealership that gives out the IPAS codes with proof of ownership and ID in the BayArea (Northern Cali)?

I am getting resistance to obtaining that info.

Also, I notice that the 944/993 non-remote key heads take the newer style key blanks too. Also there is a compartment for a immobilizer pill too. It makes a nice spare key that can drive the car without the remote function.

Does porsche sell the immobilizer pills separately?

Thanks

PG

[Loren]

Does anyone know a dealership that gives out the IPAS codes with proof of ownership and ID in the BayArea (Northern Cali)?

I am getting resistance to obtaining that info.

Also, I notice that the 944/993 non-remote key heads take the newer style key blanks too. Also there is a compartment for a immobilizer pill too. It makes a nice spare key that can drive the car without the remote function.

Does porsche sell the immobilizer pills separately?

Thanks

PG

With proper proof of ownership any dealer should give you your IPAS codes - but likely refuse to give you one for someone else.

Yo do realize you will need a PST2 or PIWIS tester to program keys or other car functions even with IPAS codes right?