Wouldn't hurt. I never did mine because it looked hard to get to, plus I suspect the problem might not be the switch (which does open and close) but the mechanism actuating it. That's big $ and a lot more work, so I just put it off. Besides, a simple mod to the IMMO BLOCK will provide the required bypass, so I may go that route. I don't anticipate having to program more FOBs but it would be nice to be able to do the emergency start procedure.

 

Jay…I have Immo Block installed and will be buying/programming a new fob in near future. Can this be done with IB installed or should I reinstall the gong relay? Thx.

 

Yes, the procedure in your owner's manual will work with IB installed. The gong relay isn't needed for that.

 

Just a follow-up that it was in fact the stupid $.10 white plastic "Buzzer Contact Ignition Lock" that was my issue. Hopefully this helps someone else!

 

The most common problem for not being able to code 993 remotes!

 

Nice work. How hard was it to replace the buzzer switch?

 

I am trying to program a new fob and the first digit in the code I got from the Porsche dealership is a "0"

Any suggestions?

 

treat all 0's as 10's

 

I seem to be unable to get my car into programming mode. Any advise?

 

I had the same problem (post 81) and used a simple workaround to get through programming. @Dubbed743 did the same in post 90. A more detailed discussion of the problem and workaround can be found here. If you'd rather fix the problem, a new buzzer switch is inexpensive and will often do the trick, but there's an outside chance the problem isn't the switch but the mechanism actuating the switch - a more difficult and expensive repair.

If you're like most owners and just want to add spare fob, there's a much easier way now that bypasses programming completely: the F2 Self-programming fob (User's Guide attached). Instead of PIN codes and programming all you do is hold the F2 next to your OEM fob and hold both buttons down for 10 seconds. Instant backup, no hassles. It's available in stock in both 315MHz and 433 MHz versions.

 

Here's the procedure;
1. Open door, insert key, and turn key to run mode. Immobilizer light should come on.
2. After about 15 seconds, the light should go off. Turn key off then on (cycle key).
3. After about 15 seconds, the light will start to flash on/off. Cycle the key to enter each
of the four digits. Wait about a second between each digit.
4. If the code is correct, the light will again begin to flash on/off. Depress the button on each remote.
5. Turn the key off, exit the vehicle, close the door, and test each remote.
6. If step #3 doesn't occur, the ignition switch is most likely bad. The immobilizer then needs to be
programmed externally.

If step #1 doesn't occur, you may have a problem with the ignition switch.

 

Mine always fails at step 3. Light never gets to flashing mode.

 

I've seen this before on my immobilizer, when an incorrect code was previously entered.
This sometimes requires waiting a few hrs before another attempt is made.
Also, if the ignition switch contacts are intermittent, the procedure becomes problematic.