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1995 C4 Key Program

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I purchased this 1995 C4 from an auction and it was a theft recovery and came with no key or battery. I have since recieved my new key from porsche but when I gave power to the car the alarm keeps sounding and I can't get the car into program mode. Another piece of info, It does have an aftermarket radio in it which works, but there is a green wire behind the radio that isn't connected to anything. Could that be causes the alarm to stay on?

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I would guess this works on all 993s

You need the card with the bar code and the immo numbers

This is a PIA procedure, it will take a few tries as the timing has to be perfect

993 Immo.pdf

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If you don't have the code, take down the info. on the IMMOBILIZER central control unit under the driver's seat and give that info. to your dealer. They should be able to obtain the 4-digit code.

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I have already received the code from the dealer and have tired the procedure posted. Problem it... once I give power to the car the alarm goes on and keeps making noise. Even if I do the unlock, lock, unlock I still can't get it to stay quite long enough to reprogram the remote.

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I said it was a PIA and I wasn't kidding

The timing has to be perfect

Edited by magcuda

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To give yourself some peace & quiet while trying to re-code, try disconnecting the alarm horn. As I recall, it's underneath up on the driver's side rear, near the transmission.

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