remote control key wont lock or unlock

[MANCGUYUK007]

tried presssing remote key wont open or close car atall any ideas ??????????????????????????????????????????????
porsche boxster 2.7 2001

[Spinnaker]

Do you have a spare key to try? The circuit board in the key may have gone bad. If the other key still works, then that is likely what happened.
I bought key at the stealership when I got the car 2½ years ago and kept it as a spare. When the button cover on the original key wouldn't stay snapped on, I got the new key out. I figured since I paid $250 for it, I might as well get some use out of it. It worked for a month and then the same thing happened to me, the buttons wouldn't activate the alarm anymore. Tried a new battery, and still nothing. The LED blinks fine. The old key works fine. Went back to the stealership to see if there was anything that could be done, since for all practical purposes, the key was nearly unused. They told me that since it was out of warrantee, there was nothing they could do. I would have to fork over another $250 for a new key.
To solve my problem, I took the circuit board out of the old key and put it in the new key fob. I keep the old key as a spare now, and buy all my parts as far away from the stealership as possible. Thank goodness for the Internet parts resources.

[jotoole]

Guys-
Bear with me a few minutes, I've reactivated key fobs several times, but I didn't take notes. One of these methods works, none do any harm.
Put your good (fob) key in ignition and turn right one click to activate accessories. Leave it in that position and close door, MAKE SURE key w/bad fob is in your hand!
Press and keep pressed the key fob button for the door locks and insert key into door lock keeping button pressed. Turn key in door lock as as you were locking then unlocking door 2 times, keeping button pressed. Release button and remove key. Manually unlock door and remove good key from ignition. Now shut door and see if fob works. If not, try various combinations of routine. e.g. unlock and then lock door 2 times. There are only so many variations on the theme. I just can never remember which. Within the last hour I reactivated my key using one of the combinations within 3 minutes.
I have to reactivate one of my keys every 6 weeks or so for this reason: When I drive my Boxster, I have Boxster key only, no other keys, in the ignition to minimize load on ignition switch. I use the Boxster key on my key ring, which carries all the other car keys, house keys, etc... to unlock my cars because I just about always have to have move cars around to get to the Boxster. Therefore my single Box key fobs rarely used to unlock. After 5 weeks or so, I have to reactivate fob buttons.
More info on Renntech.org. Search "remote key transmitter fix."

[Dale_K]

Reviving an old thread. Can anybody confirm the viability and correctness of these instruction? One of my remotes doesn't work but the led blinks when a button is pushed and I've put in a new remote battery. When I try to reactivate the inoperable remote with these directions I get a beep each time I cycle the door lock but the remote still doesn't do anything afterward.

Originally Posted by jotoole

Guys-
Bear with me a few minutes, I've reactivated key fobs several times, but I didn't take notes. One of these methods works, none do any harm.
Put your good (fob) key in ignition and turn right one click to activate accessories. Leave it in that position and close door, MAKE SURE key w/bad fob is in your hand!
Press and keep pressed the key fob button for the door locks and insert key into door lock keeping button pressed. Turn key in door lock as as you were locking then unlocking door 2 times, keeping button pressed. Release button and remove key. Manually unlock door and remove good key from ignition. Now shut door and see if fob works. If not, try various combinations of routine. e.g. unlock and then lock door 2 times. There are only so many variations on the theme. I just can never remember which. Within the last hour I reactivated my key using one of the combinations within 3 minutes.
I have to reactivate one of my keys every 6 weeks or so for this reason: When I drive my Boxster, I have Boxster key only, no other keys, in the ignition to minimize load on ignition switch. I use the Boxster key on my key ring, which carries all the other car keys, house keys, etc... to unlock my cars because I just about always have to have move cars around to get to the Boxster. Therefore my single Box key fobs rarely used to unlock. After 5 weeks or so, I have to reactivate fob buttons.
More info on Renntech.org. Search "remote key transmitter fix."

[Spinnaker]

Originally Posted by Dale_K

Reviving an old thread. Can anybody confirm the viability and correctness of these instruction? One of my remotes doesn't work but the led blinks when a button is pushed and I've put in a new remote battery. When I try to reactivate the inoperable remote with these directions I get a beep each time I cycle the door lock but the remote still doesn't do anything afterward.

Tried the same thing with the bad "new" key and it did not work for me either.

[Spinnaker]

post deleted

[cellutron]

Originally Posted by Dale_K

Reviving an old thread. Can anybody confirm the viability and correctness of these instruction? One of my remotes doesn't work but the led blinks when a button is pushed and I've put in a new remote battery. When I try to reactivate the inoperable remote with these directions I get a beep each time I cycle the door lock but the remote still doesn't do anything afterward.

The process of 'wakening'the receiver, after a dormant period ( the car not the remote) involves locking and unlocking the door using the blade, then attempt to use the remote to operate the lock, which then disarms the alarm. This is not 'activate/ reactivate' -ing the remote or coding or fixing the remote.
Generally, after 10 yrs or so, the buttons deteriorate and the board starts suffering from dry joints- So a good reflow by a good solderer should sort out the problem. At times you find cracked components or RF modulator, controller chip/ processor going faulty and there isn't anything you can do to repair as you can't get hold of these and even if you manage to find them, you still have to do the recoding, etc. which is outside the realm of the average man! Even the crystal is not easy to find! So you end up forking out Porsches extortionate prices for a new one! Sad but true!

[tanque55]

I thought it was normal that after a prolonged time without use that you had to use the key in the door and that reactivated the remote. is this not the case? I know if I leave mine sitting for a week or so that is the norm for me and thats what the previous owner told me.

[PorscheFan5]

Does anyone know the specifications of the 'oscillator' on the circuit board? I opened my key fob and the oscillator is missing. Please see attached pic with the two points marked up with circles. One of the micro-switches had come off so I soldered it (still need to clean out the pcb...). When I press the switches the LED does flash but none of the doors open. I think it is because I am missing the oscillator part.

I have just bought the 2004 Boxster and cannot lock it. Something is also wrong in the door lock mechanism as the key swings freely when put in the door. But that is another problem. Need to first fix the fob issue.

Also does anyone have a spare/junk pcb for the key fob (for a 2004 Boxster)?

Appreciate any help.

[Log]

Something similar like this happened to me... The button swith broke off the circuit board...I had to solder it back on.

[jotoole]

Originally Posted by Log

Something similar like this happened to me... The button switch broke off the circuit board...I had to solder it back on.

Had switch break off also, but it is so small I dropped it and lost it. Someone on one of these boards posted where you can get replacement switch.
Digi-Key Corp. www.digikey.com Part# CKN9193CT-ND. Package of 3 for $4.42 which included shipping. That was so cheap that I went to Amazon and bought what turned out to be the perfect solder iron kit for ~ $10.00.
I've seen other post where switch simply wears out.

[choste11]

I have the same problem that when I press the unlock button nothing happens. The red light doesn't even blink on the fob. THe previous owner said that the light was blinking at one point and then stopped. I have new CR2032 batteries in both fobs and both don't blink at all. Any ideas?

[boxster1966]

Can anybody confirm if a 97/98 boxster key / remote can be reactivated?

Mine just stopped working last week, no idea why, changed the battery, but no flashing of the dash led, checked the remote is transmitting on 433mhz using freq tester at work.

I only have one key, so unable to try a spare, don't want to shell out £260 for another key if i don't know why the old one won't reactivate.

Gary

[sasha055]

Resurecting the thread

I replaces my swithces and still not working.. I don't even get the key to light on.

Maybe someone can help me:
Does anyone know what is this white thing in picture (arrow)?
I think that when I was checking the voltage on both sides of "white thingy" before changing swithes I had contact in there.. now it's blank.. is it some kind of fuse?

I must've screw something up.. before the key was lighting up.. now it's dead

Thanks
Sasha

[cellutron]

Originally Posted by sasha055

Resurecting the thread

I replaces my swithces and still not working.. I don't even get the key to light on.

Maybe someone can help me:
Does anyone know what is this white thing in picture (arrow)?
I think that when I was checking the voltage on both sides of "white thingy" before changing swithes I had contact in there.. now it's blank.. is it some kind of fuse?

I must've screw something up.. before the key was lighting up.. now it's dead

Thanks
Sasha

The white cylinder is a coil and is part of the antenna circuitry

[Swhitcomb]

My remote lights up, but won't unlock my car. When I bought it, it would operate both trunks, but not the doors. I found the switch on the circuit board was broken. Fixed it, and when you press the buttons the LED lights up, however, does nothing in terms of locking of unlocking my car. Is there a reset or a way to get the car to re recognize the key?

[steved0x]

My main key just stopped working, tried new battery and reactivation procedure with no joy. if I take it to an autoparts store and try it on the remote tester machine, it shows that it is emitting a radio signal and the led flashes. Luckily my 2nd key works but I would sure like to get the main key working again. I'm watching this thread...

Steve

[The French Dude]

Good luck both of mine don't work properly... Lights up on both keys but nothing happens...

[jpinder]

I bought a new remote key (entire unit; head and blank) online and had it cut. I put the little ID piece into the slot and it works well in terms of manual use.
However, I do not have the circuit. Is there anywhere I can buy a circuit online without having to spend the outrageous amounts at the dealership? I presume it can be installed into the new shell and programmed.
Thanks

[AaronPDX]

Thanks @IMACMAN! The soldering instructions worked perfect for me. I just bought a 2000 Boxster S with only 40K miles and the main lock button didn't work. When I took it apart to check the battery, I saw the switch was rattling around in the key. I used your instructions and with super glue and my trusty soldering iron I have a working key again.

Cheers!