MK19

Asking for HELP once again;

This time it's the remote key control of the alarm/door locks; very intermittent at best, non-operative most of the time.

Yes - new batteries in the keys, have tried both keys, have moved around the car with keys, red LED's flash on keys.

This began some time ago and seems to have gotten progressively worse to the point that its inoperative ....... I have to use the key in the door lock, which seems to set the alarm and then when I open the door later,and unless I turn on the ignition, then the alarm goes off.

Any similar experience? Could I have a failing reciever (hard to think it's the key transmitter since the both keys act the same). Or a conrtol module?

Thanks in advance for any help or advice.

MK19

wross996tt

MY of car please.

MK19

My alarm problem is with my MY 2002 996 TT.

wross996tt

TSB: Insufficient Range of Remote 7/04 #9662

ZX9RCAM

It seems odd that one day it would be working fine & then all of the sudden the antenna is the wrong length....

Mine is actually doing the same thing.....

wross996tt

We are talking about the key FOB right? LOL.....

ZX9RCAM

yep....my red light comes on & everything as well.

MK19

Thanks all and especially Wross.
Here are a couple of details in reply the the questions raised;
1) Yes....we are talking about the ineffectiveness of the Key Fob to operate the alarm and door locks.
2) The key fob pereformance didn't really change in one day.......it happened over the summer (heat can degrade the specs of electronic components), thus taking things "out of tune" so to speak. I suppose that the "length of the antenna" is a tuning adjustment that could compensate for other changes in the system.

Has anyone had similar experience as mine? and how did you fix it?
Thanks,
MK

ZX9RCAM

Mine actually changed in one day.....

MK19

Two questions Please:
1) Any advice on removal of the A pillar tim piece from inside?
2) how much to cut the antena length? a bit at a time....test/cut/test?

MK19

Nevermind on trim removal question......I realized it was well covered in the manual. Thanks anyway.

wross996tt

1. Pull it out... (if you've got the plastic removers shown below, that helps)
2. It says in the instructions...130mm...no more no less.

MK19

Help wross.......sounds like you have this wired (no pun intended!)
Here's what I have done;
1) exposed the antena wire per steps 1 thru 4 (tested with both keys - flashing) no effect.
2) checked the exposed antenna lead length as found; it was the 130mm per the "CAUTION" note after step 5.
3) cut the exposed antena an inch (25mm) at a time, checking at each step with both flashing keys.....no effect. Continued down to 100mm until I'd shortened the exposed lead per step 5(Fig. 3)....no effect. But still getting the intermittant operation telling me the system can operate.
4) checked and reset all the connectors and the antena connection at the alarm/lock control box under the drivers seat.....no efect.
5) continued to step 6 and re-exposed the now shortened antena lead back to 130mm per step 6 by carefully removing the shield. No effect.
6) re-installed all back in the harness and into the car (but not the A pillar trim)......testing at every step.......no effect. But still get the ocassional operation .......

What do you think wross??
Thanks for your help and input.
MK

Bob M

I'll jump in on this one too MK19. Somehow we both seem to be experiencing the same kind of problems. In my case it was the key fob that failed.

MK19

Thanks Bob...........that may be the case with my car too. But I have 2 failed fob's (a bit of a stretch, but possible).

I had exactly the same experience on my wifes BMW X5 and the dealer fixed it with a new key fob (in that case we only had one). Cost about $135 if I recall.

Bob: what was the deal in replacing the fob? dealer item and re-programing I presume? cost? Or can I do-it-myself?

Thanks,
MK