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who knows the steps to code an immobilizer computer?

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me and a friend of mine both had our M535 alarm/locking/immobilizer computers get soaked. after drying them out, cleaning with alcohol, etc., we are still missing some functions (mine more than his).

we both have brand-new M535 computers and access to a PST2. we are in the process of getting our IPAS codes from the dealer/Porsche so that we can program these new computers.

does anyone know the actual PST2 procedure for coding these immobilizer computers? it would be a giant help!

both of the computers work well enough to allow the car to be started. and yes, we have both cleaned out our drains. ;)


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It is in the factory service manual. You will find it under volume 0 (part 2) - section 96 - Alarm system diagnosis I32; I48.

The section is "Reading out and transferring remote control".

Please be very carefully - a wrong entry can lock you out.

You will need all working keys when adding a key (so you do not program over an existing key).

And, of course, the new key must have the 24 digit learning code.

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thanks Loren. i knew you would know. ;)

i'll check the factory manuals.

update: i checked the factory manuals that *i* have, and i don't see the section you are referring to.

any chance you might post the procedure for posterity? ;)


Edited by Chris_in_NH
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