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Volkswagen Jetta, Golf, GTI: 1993-1999, Cabrio 1995-2002 (A3) VW Jetta Golf Cabrio Alarm Control Module


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Last Post: Feb 8, 2007 7:18 PM Last Post By: VWX3
cranky cabrio

Posts: 2
Registered: 04/05/06
VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 5, 2006 8:15 PM
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Looking for some guidance here. Have a 1999.5 cabrio with a temperamental keyless entry alarm system. I just spend $90 at the shop for them to tell me that the unit either needs to be replaced or there is a wire problem. I can find the units on ebay for around $25. So I'm not really concerned about the price. Here is my question for you: The system worked fine until the fuse panel came down from the dash. When I replaced it back in the holder and checked to make sure all fuses were making contact the keyless entry system started to malfunction. I can lock the doors with the key. The alarm sets for about 30 seconds and then faults out. The doors remain locked. If I try to lock the doors with the remote, the light flashes showing its set, but it doesn't lock the doors. I can unlock and pop the trunk with the remote though. When I key lock the doors it arms, resets without the alarm on, but after it faults off it will not let me pop the locks or the trunk with the remote. Perhaps someone out there has more knowledge than my shop did and will have a simple solution for me. I am hopeful it is just the controller. Any help would be greatly appreciated. Thanks!
BobD

Posts: 1,830
Registered: 11/29/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 5, 2006 9:12 PM   in response to: cranky cabrio in response to: cranky cabrio
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So, with the key in the drivers door, does the alarm arm?, and do the doors lock? If so, does the alarm always go off (fault), after you have armed it with the key?

Is there anyway of setting the alarm, and NOT have it go off?

First, it's better to understand what is, and what isn't working without the remote...then move to the remote.

BobD
cranky cabrio

Posts: 2
Registered: 04/05/06
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 5, 2006 10:12 PM   in response to: BobD in response to: BobD
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Key in door, the doors lock, it try's to set the alarm and then it faults. Doors stay locked. I can set the alarm, but it always faults to off. The light on the drivers door only will flash 1 time for what it usually would flash 10 or so. As for the remote I will wait and see what you have to say about the key.
BobD

Posts: 1,830
Registered: 11/29/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 5, 2006 10:31 PM   in response to: cranky cabrio in response to: cranky cabrio
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I don't think your car is arming.

I think you have an open input.
-Door pin(s).
-Trunk latch
-Hood latch
-or stereo switch.

If you set your cars alarm, you have 30 seconds to close all inputs, otherwise the alarm goes off to tell you there is something wrong.

You should check all inputs.

BobD
Port Fellamay

Posts: 4,105
Registered: 01/18/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 6, 2006 10:33 AM   in response to: BobD in response to: BobD
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There is a part to bypass the alarm altogether, for like 3$ at the dealer, you plug it into the wire that goes to the alarm. The alarm is a silver box with two plugs going into it, right above the fusebox, so it's possible you damaged or pulled some wires out.
stan

Posts: 173
Registered: 02/10/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 6, 2006 10:38 PM   in response to: BobD in response to: BobD
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Silver box behind light switch is the alarm module. There is a cruse control box also. It is possible play with the fuse/relay box to pull the wires off the alarm. I would locate both boxes and disconnect then reconnect them.

Message was edited by: stan

dwolfuk

Posts: 1
Registered: 04/28/06
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 28, 2006 8:37 AM   in response to: stan in response to: stan
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Did you find out what the problem was with the alarm?

Regards

Barry
hardyn

Posts: 3
Registered: 04/30/06
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 30, 2006 6:53 PM   in response to: Port Fellamay in response to: Port Fellamay
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I am having a similar problem with my 93, this 3$ bypass, does anybody know if there is a similar available for a mk3? does any know the part number?

thanks.
BobD

Posts: 1,830
Registered: 11/29/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 30, 2006 10:24 PM   in response to: hardyn in response to: hardyn
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What model car?
What problems are you having?

BobD
Port Fellamay

Posts: 4,105
Registered: 01/18/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: Apr 30, 2006 10:26 PM   in response to: BobD in response to: BobD
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The one i have is for the MKIII they are all same platform and basic electronics in that area.
hardyn

Posts: 3
Registered: 04/30/06
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 2, 2006 2:03 PM   in response to: Port Fellamay in response to: Port Fellamay
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the problem, the alarm seems to want to go off when it wants, but forgets that it is only supposed to go off for 1min...

4 hours and a noise violation later, i was out of town, its for for it to go, i has also gone off once while i was driving. neat hun?

does anybody know the part number, my VW dealer stared at me blankly when i asked for such a device.

thanks
BobD

Posts: 1,830
Registered: 11/29/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 2, 2006 8:46 PM   in response to: hardyn in response to: hardyn
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If your alarm is being self triggered, it will go off, that is true. The horn will blare for a while.
But then stop & re-arm itself, and then it may go off again.

If so, I'm guessing you have something faulty triggering one of the alarm inputs. In the past I have come across 2 popular problems.
-Hood pin trigger (2 types)
-pull switch on the side of the factory stereo.

When you turn on your alarm, does the car honk right away?
Do you have a factory VW stereo?
Do you know what style of hood pin do you have?

BobD
hardyn

Posts: 3
Registered: 04/30/06
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 3, 2006 1:25 AM   in response to: BobD in response to: BobD
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its a 1993 golf, aftermarket stereo head unit.

I agree with the trigger, retrigger thing.

the hood switch is a std plunger style located by the coolant resivoir.

the alarm operates as normal. but is unrelible as previously stated; im not a big fan of campus security and the city police as previously stated.

but honestly is a beat 13y/o VW, if this bypass is available i would rather just to that at this point, rather than have another incident like this.

if this part does exist and some body has a part number for it i would really rather just to that; its just an old car.

there was a previous incident that was similar but the horn would remain on constantly, and would not strobe like its supposed to, the tail lites would flicker randomly.

i have no doubt that the problem could be caused by a faulty switch or the alarm module its self. im a student i don't have time to start pulling switches apart or removing door pannels, i will take a patch at this point. the car has no central lock, or any of the fancy locking mechanisms.

thanks for any help.
(does anybody wanna share that part number?)
Port Fellamay

Posts: 4,105
Registered: 01/18/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 3, 2006 9:08 PM   in response to: hardyn in response to: hardyn
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Here you go guys, the sacred part number for the alarm bypass!

Part# 1H0 972 762 - $3.25
FKH161

Posts: 7,634
Registered: 12/29/05
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 7, 2006 4:19 PM   in response to: Port Fellamay in response to: Port Fellamay
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Attachment plug1.jpg (28.1 KB)
Attachment plug2.jpg (26.8 KB)
Couldn't resist a cheap VW part! ;-)

So I went to test fit (in case of future alarm failure) and found the plug fittings to not match bypass plug (2 pics attached above).

I'm pretty sure I have the correct module out since the car will not start, alarm does not set and if I bridge 2 terminals on 'harness side' I can crank.
Port Fellamay

Posts: 4,105
Registered: 01/18/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 7, 2006 6:11 PM   in response to: FKH161 in response to: FKH161
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What car are you using it on, this is for the Jetta III alarm bypass, I assumed the cabrio one is the same, but it might be different. I dunno just call up the dealer and try and get the perticular part for your car.
FKH161

Posts: 7,634
Registered: 12/29/05
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 7, 2006 6:14 PM   in response to: Port Fellamay in response to: Port Fellamay
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93 Golf 2.0

I'll see if it has a silver box.
Port Fellamay

Posts: 4,105
Registered: 01/18/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 7, 2006 7:40 PM   in response to: FKH161 in response to: FKH161
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Yeah it works on all A3's and Passat's and more. I have never had to use it...but it's good security in an emergency situation. I don't know the perticulars of how it fits in there. Other than it is designed to go into the 6 prong connector, probably where you are saying to jump.
BobD

Posts: 1,830
Registered: 11/29/04
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 7, 2006 8:50 PM   in response to: Port Fellamay in response to: Port Fellamay
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I bypassed the alarm once, a while back though.
All I did was unplug both alarm harnesses and used a large jumper wire from WFS1 to WFS2.
But the jumper went inside the 6 pin alarm harness.
Not into the alarm side.

BobD
FKH161

Posts: 7,634
Registered: 12/29/05
Re: VW Jetta Golf Cabrio Alarm Control Module
Posted: May 7, 2006 10:52 PM   in response to: BobD in response to: BobD
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Attachment blackbox.jpg (33.7 KB)
Bridging those 2 is how I get the crank circuit... the bypass plug does not fit (pins in harness are accross from each other, not side by side as in bypass plug... see previous picture).

I found reference to the alarm in the Bentley DVD I have and also indicates alarm as black box... see picture above.

Strange... anyone get the bypass plug to fit? Must be a different module!?

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