brihakwilles

Greetings Renntech members.

I'm new to Renntech and Porsche. I recently purchased a 1999 Carrera 996 (36K miles) and the alarm system has never worked correctly. I did not know that a single horn beep after remote locking was not normal until I had a chance to read the manual. (My American cars normally beep once after remote lock.)

Symptoms: After remote locking the car the horn beeps once and then the dashboard LED goes into 2-flash mode, which I understand means one or more issues exist. I bought the Durametrics unit and hooked it up. This is where I'm getting confused. No fault conditions exist under the Alarm section. When I go into the Inputs mode, where one can view in near real-time the status of manual inputs to the Alarm System Module, only one input responds to physical changes: the internal lock switch near the radio does cause one of the display inputs to toggle. However I can open/close the trunk, hood, driver's door, and passenger's door but see no changes to any display input. I pulled the trunk and hood micro-switches and both are working correctly (open when trunk/hood is closed and closed when trunk/hood is open). The windows in both doors behave correctly (i.e. window drops 10 mm when open, stays down while open, and then moves back up 10 mm when door is closed). And everything else on the car works perfect. If I leave the trunk, hood, or passenger door open (on purpose) and remotely lock the car, the alarm system behaves the same (single horn beep and double flash on the LED), so it is clearly not recognizing these fault conditions. It is only when I leave the driver's door open on purpose does the alarm system respond: beeps once and does not activate the alarm system.

I understand that the Durametrics system is not perfect so I'm wondering what you guys think. Are all the large number of non-responsive inputs in the Durametrics software just a "limitation" of the Durametrics hardware/software or should I be suspecting that my Alarm Control Module is bad? If the Durametrics software does have limitations, then I may attempt to open up the doors and manually test all those switches, as well as the passenger sensor, but I don't want to go there if I don't have to.

Any advice you can offer would be greatly appreciated.

Great website and great car!

It seems like you haven't downloaded the latest "Durametric software" since I do have the alaram system with me but I didn't find any kind of problem with it, or else the best solution would be go with the manual it would definitly help you!!