Horn beeps twice when unlocking

[fab]

Originally Posted by KevinH1990

I
For a while, my car would beep when I locked it. I found that the hinge on the center console lid (Porsche calls it the oddments tray) was starting to break and it wasn't closing properly. Vkostakos may want to check if he has a similar problem.

Diddo...has happen to me when I did not close the center console completely

[FTD]

The horn is telling you to stop doing that right left thing and just unlock it properly.

[FTD]

Originally Posted by fab

Diddo...has happen to me when I did not close the center console completely

That is about locking the car. His situation is about unlocking the car. If your horn beeps when you lock the car, it means something in the 'security areas' isn't secure, ie: the lid on your oddments tray. I read a posting here that explained it is telling you the motion detector will not be activated due to the insecure area issue.

[Wingman]

Hi,

I have a 2001 model 2.7 Boxster. In the last few days the central locking seems to activate itself while I'm driving, when I try to switch it off, it comes straight back on and the car beeps twice . Also, when I switch the car off and open the door, the window on the drivers side does not lower. The strange thing is, when I activate the roof down lever (Apologies for not knowing the technical name), both windows lower. They also both raise when I put the roof back up.. The speed dial and mileage lights are also staying on, even when the key is out of the ignition.
I believe that this points to a sensor issue as I read in the manual and other threads on here that when the horn sounds twice, it means there is a security issue. Before I take it in to the garage I wanted to know if there was anything I can do myself.

Thanks in advance

[tonycarreon]

from the manual:

"A double horn sound during locking indicates a defect in the central locking or alarm system. Have the defect remedied at an authorized Porsche stealership."

There are 4 types of central locking, programmable by your local stealership:

Type 1: Doors lock automatically when the ignition is switched on.
Type 2: Doors lock automatically when a speed of 3-6mph is exceeded.
Type 3: Doors lock automatically when the ignition is switched on. If doors are opened with the engine running, they lock again automatically when a speed of 3-6mph is exceeded.
Type 4: The doors do not lock automatically.

[mptoledo]

Have you removed your radio for any reason or have you done any work with your central dash area? I know you said you had the original radio, but after installing my new jvc, my car now beeps when i lock it(not unlock it). The sensor in your radio(or even arm rest) may be defective or may have been dislodged.

[Lil bastard]

The car in question is a UK model and their alrm systems are different than US market ones with motion sensors and alarm sirens w/ backup battery.

It may be that the battery backup has failed.

I'm also suspecting a bad ignition switch - no end to the gremlins that this issue can cause.

[stonedagain]

Originally Posted by Lil bastard

The car in question is a UK model and their alrm systems are different than US market ones with motion sensors and alarm sirens w/ backup battery.

It may be that the battery backup has failed.

I'm also suspecting a bad ignition switch - no end to the gremlins that this issue can cause.

On a UK model, if you unlock the car using the key in the lock barrel, only the driver's door unlocks (the front & rear trunk releases, fuel flap & passenger door remain locked but these can be unlocked using the button on the dash) also the horn beeps twice, and the alarm will sound if you don't turn the ignition on quickly enough, but the car will fully lock using the key. The car will only fully unlock by using the fob.