door lock help

[cviper1]

Hello I have an 02 996 c4. So my door locks will not work at all using the lock switch inside the car. When I use the key fob you hear the door locks lock then unlock. Now I checked the doors, hood, etc. to make sure they are closed. The one thing im not sure about is the fuel door lock actuatior. When i use the key fob like i said i can hear the door lock then unlock but when i tryed this checking the fuel door i couldnt get it to do anything. Is the fuel door lock actuator my problem? If it is than can i bypass it somehow just so i can lock my doors untill i get a new one.

Thanks

[Loren]

:welcome:

Hmm... do you get two beeps when you try to lock the door using the key fob?

If so, you have an alarm fault.

[cviper1]

No when I use the key fob i dont get any beeps. When I press the lock on the fob the red light flashes very fasy is this normal?

[Loren]

Can you lock the car with the key fob?

[cviper1]

The locks will lock then unlock instantly

[Loren]

Then it is time to put a diagnostic tool on the car. Either Durametric software, a Porsche PST 2 or Porsche PIWIS tester will be need to read any diagnostic tests and fault codes on the alarm system.

[cviper1]

Ok thanks ill try to find someone with the tool. My fear is i once had a nasty water leak and im scard the computer might hace damage. Thanks for your help.

[Richard Hamilton]

From your description, it's more likely to be one of the microswitches inside the door lock mechanism than the alarm module. However, this normally gives a double-beep. As Loren says, diagnosis with a Porsche tester is the best thing to do. It should pinpoint the problem.

[cviper1]

So I did some checking and I think my alarm control module is fried. I can’t get my alarm to beep at all and also my interior lights will not come on without the key in. When I came home today I decided to check the fuse in the alarm control module, it was good. So then I pulled the acm and when I opened it I found the board with lots of corrosion and rust. I tried to clean it knowing it was a long shot and needless to say it didn’t work. So I’m going to try to find someone to check the codes for me just to make sure it is the acm. If it is a bad acm when I replace it will I need to take it to Porsche to get it programmed?

[Loren]

Unless you know someone with a PST2 or PIWIS tester AND know your cars unique IPAS codes - then yes, you will need to go to a dealer.

[cviper1]

Ok thanks for all of your help. I am going next Sat. to get my codes read and if it is the acm than its off to the dealership for me. Wish me luck.