sdm100

Anyone know what is the type of replacement for the glove box light bulb?

pp000830

Hi SDM
Porsche number 999 631 018 90, Sylvania number DE 3021, avoid swapping out with a LED bulb as it is part of the alarm/immobilizer system.
Andy

EckFe1

I switched to an led insert and the alarm still works.
Same with frunk and trunk.

pp000830

Yes, but does it trigger the alarm when you open one of the lids or the glove box?

mike cap

Ditto

EckFe1

It does. I sporadically test my alarm system as I added a tracking device with sim, shock sensor and gps. For example opening the hood, I get the horn activated if I choose so and get called on the phone with car status and location etc.
I have silent alarm too which I use when I'm close to the car.
I think the alarm trigger is the contact on the lock and not the resistance of the bulb.
I maybe wrong though.

ToreB

The supervision wire from the alarm is connected to the glovebox bulb, and detects the ground signal from the switch when the glovebox is opened.
Some LED bulbs will cause problems for the alarm function, since they do not present the same electric load on the circuit and does not conduct in the same way as an incandescent lamp.
If the LED bulb is equipped an internal load resistor it will most probably work fine. If not, the alarm can detect the lack of power supply through the bulb as the glove box has been opened.
Cheers,
Tore

71-3.0-911

Tore,
This is quite interesting. I did a lower dash delete a number of months ago and of course all of that was removed. Would it be best to simply short those two wires together to make sure no alarm issues come up?

-Scott

jay@EZimmoblock.com

If you're talking about the glovebox switch wires, you want to leave them open. Shorting them will simulate glovebox OPEN.

71-3.0-911

Ahhh. This makes more sense. I red the previous comment differently. Thanks, Jay!