What is wrong with my Porsche?

Asked by Apr 30, 2014 at 02:55 PM about the 2002 Porsche Boxster Base

Question type: Maintenance & Repair

I have a 2002 Porsche Boxster Convertible. It has less than 80,000 miles on it. She runs great, but all of a sudden when you crank the car the windows go up and down, and the doors lock and unlock on their on and the Car alarm goes off. I have had it checked by a local mechanic but they don't seem to know what is wrong. Can you help me figure this problem out? Thanks.   Brian P.

3 Answers


Does it have the original battery (probably not)? If the battery is over 6/7 years old try replacing it. Also before doing anything, find all the ground straps and clean and re-tighten them, particularly the engine ground strap.


I would agree with Smitty. 1. Does it happen every time you crank the car? 2. When you crank it, does the car turn over a bit slowly like the battery may be low? 3. Did the mechanic check the OBD-II for any codes? esp. the pre- codes (they don't make the CEL come on.) Sounds like the battery may have a bad cell. When you crank the car, the voltage drops to the point that the security system picks up a tampering situation. Which brings up another thought... what happens after the windows/alarm? Meaning does it settle down and you can drive it fine? If not, it could be something more related to the key/keyswitch/security system.


Hmm, this is surprising for such an expensive vehicle and only 80,000 miles, despite the fact that it's a 2002, which by the way, I find very hard to believe. Are you the original owner? If so, why is the mileage so low?

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