Quote:
Originally Posted by Overdrive
No offense meant, gentlemen, but I'd say you're not entirely correct here, while I'll admit I'm basing my experience on a 97 and a 99 Boxster.
Yes, if the car immediately beeps at you upon the button press, that means something is unsecure (as mentioned, doors not closed completely, a trunk open, or the center console lid not closed).
SNIP!
If you want to test it, roll your windows down (with the top up), lock the car, and reach in and wave your hand around near the dash to see if the alarm actually goes off and beeps the horn continuously.
The other possibility is that your alarm horn (separate from your idiot repellent horn in the steering wheel) could have gone bad and needs to be replaced. It's up by the battery on the driver's side under the plastic mesh covering.
SNIP!
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I know it's normally not nice to resurrect an old thread but Mr. Overdrive just helped me solve my problem and I wanted to let everyone know the solution if you find your way here in the future. Mr. Google had very little information on my problem which is:
NO SOUND FROM ALARM AT ALL:
2004 U.S. Boxster 986 S
The other day, I noticed I left the boot open and set the alarm and had no chirp. I double-checked by opening the glove compartment and locking the car. Same result, no chirp. Testing again today, I did exactly what Mr. Overdrive said - rolled down the window, locked the car and opened the door from the inside (you have to wait until you get the 1 second flashes on the dash before you try to trip the alarm).
The lights flashed like someone broke in but no alarm sound.
I did not know the alarm horn is a separate item located about an inch or two to the right of the battery. However, after I read what Mr. Overdrive said, I looked through the plastic mesh and there it was. I removed the plastic battery cover then used a 13mm socket on a 1/4" ratchet to loosen the battery hold down bolt. I slid the battery to the left away from the alarm horn and that allowed me to use the same socket/ratchet to unbolt the alarm horn. There's 2 wire clips on the electrical connector for the horn. Squeeze 'em together and pull the plug. Easy peasy.
I got a couple of electronic jumper wires (16 gauge wire with an alligator clip on each end) and jumpered the alarm horn to the battery. Nothing. Then I used the jumpers to attach a meter to the horn electrical connector. I triggered the alarm and once I had the polarity right, my digital multimeter showed 9v with blips higher that coincided with the flashing headlights in full alarm state.
That means I had good electricity to the alarm horn but no sound from the horn itself.
So I'll order a new one and once it's in, I'll try to remember to come back here and let you know the results.
For your convenience, I found it to be part number 996 637 117 03
This covers Boxsters from 1997-2004 for sure and supersedes 996 637 117 00 & 01 & 02
Doing a search to buy the part it looks like it's used in EVERY Porsche from 1997 on, but double check the number for your vehicle.