Want to disable the factory alarm. Fuse 111 on MkIV

[fjparks]

2004 Jetta
I want to disable the factory alarm. Looking for location of fuse 111.
My understanding it is one of three fuses in the relay panel behind the driver side lower dash. I see what look like they might be three fuses, but they don't look like the normal blade fuses and I don't know which one is which.
Anyone have insight into this? Hopefully with pictures.
Thanks

 

[STDOUBT]

HTH! (click for larger image)

 

[STDOUBT]

OOps. Wrong pic
OK fixed but not sure about "111".
This is from the bent for years 1999,2000,2001,2002,
2003,2004,2005
so...hmmm

 

[fjparks]

Thanks for the pic.
I'm stumped. Maybe they aren't in the relay panel? Wiring diagram shows power for the alarm coming from fuses S111 & S144. Another post says that they were able to disable the alarm without negative interlock by pulling these two fuses. Unfortunately the post is ~10yrs old and the links to the pics are stale.

 

[Lex4TDI4Life]

Look to the right of the relay panel and back a bit. There are three green fuses. They look sorta like the blade-style fuses that fit into the top of the battery box. Beware. I bet if you pull them you might otherwise FUBAR your CCM.

 

[oilhammer]

Maybe some context to your query would be helpful here. Because the "alarm system" is resident and part of the CCM, which also does a bunch of other things, and the car cannot properly function without the CCM.

If you have a problem where the alarm is going off, perhaps finding out why and fixing the problem would be better than just trying to mask it.

 

[Dhawk12]

My brother bought a car where the PO had "disabled" the alarm by unplugging the horn from the alarm circuit because it was apparently constantly going off. Turned out the real problem was that one of the keys lock button was stuck engaged and was constantly sending the car a lock signal. Pulled the remote apart and problem solved.

Sent from my Pixel 3 XL using Tapatalk

 

[fjparks]

Thanks for the input Dhawk. I think the issue might have been caused by the panic button on one of the key fobs, but it is so intermittent it is hard to be sure. I bought the car for my Mother and if started going off in the middle of the night at her place it would be a disaster. I have to make sure it does not happen again.
I want to keep the horn functionality but do not care about and do not want the alarm. Reading the posts the locks / alarm systems on these cars are chronically affected by intermittent issues that can be triggered from at least 6 sources. Thanks again.

 

[oilhammer]

The alarm horn is not the same as the car's horn.

A few minutes with a scan tool could possibly narrow down the cause of this.

If you suspect a fob, why not just remove the battery and see if it happens again? The key portion will still function normally to manually unlock the car even if the fob is not functional.

 

[fjparks]

Yes, I found that out when I pulled the fuse for the horn and it disabled the steering wheel horn but not the alarm horn.
I did pull the battery out of the suspect key fob but the problem is that I had the car for two weeks before I had a night where the alarm went off three time in one night then stopped. So it is so intermittent that it is hard to know if it is fixed and I can not have it going off when it is parked in my mother's retirement community.

Regarding the scan tool, can I just use a regular OBD2 scanner or would I need something more specific to VW?
Thanks

 

[Rxfire]

http://forums.tdiclub.com/showthread.php?t=335005&highlight=alarm

https://forums.vwvortex.com/showthread.php?2791916

https://forums.vwvortex.com/showthread.php?3509177&postid=42825533

 

[gforce1108]

Yes, I found that out when I pulled the fuse for the horn and it disabled the steering wheel horn but not the alarm horn.
I did pull the battery out of the suspect key fob but the problem is that I had the car for two weeks before I had a night where the alarm went off three time in one night then stopped. So it is so intermittent that it is hard to know if it is fixed and I can not have it going off when it is parked in my mother's retirement community.

Regarding the scan tool, can I just use a regular OBD2 scanner or would I need something more specific to VW?
Thanks

You will need something more in depth than a generic reader. VCDS is best - OBDeleven is cheaper but not as user friendly (and has some odd points/credits system). I would bet money on a bad door lock module that is intermittently seeing it open without disarming.

 

[fjparks]

Thanks for the links Rxfire,
I hope it does not come to unhooking the alarm horn...
I found the alarm fuses in the schematic (111 & 144) and the thread on pulling them. The poster says this worked to disable the alarm and did not trigger any interlock to make the car not functional aka he can still drive it, radio still works, etc.. However, the link to his pictures don't work so I'm having trouble determining their location, I think they are in the relay panel under the driver's side dash, but I'm not sure which fuses they are. I think they are F & G on relay panel, but I'm having trouble seeing all of this up under the dash. VW, for obvious reasons, is not making this easy

 

[fjparks]

Thanks for the reply Gforce,
Yes, it seems like it is probably one of the door module, but I don't know why it intermittently goes off with the doors unlocked.
I see VCDS for sale at >$100 and "VCDS Lite" that looks like OBD2 connector cable to USB plug. Any thoughts?
Thanks

 

[BobnOH]

For that type diagnosis, you'll want the VCDS complete along with a laptop running Windows 7 or 10.
https://store.ross-tech.com/shop/vchv2_ent/

 

[gforce1108]

Thanks for the reply Gforce,
Yes, it seems like it is probably one of the door module, but I don't know why it intermittently goes off with the doors unlocked.
I see VCDS for sale at >$100 and "VCDS Lite" that looks like OBD2 connector cable to USB plug. Any thoughts?
Thanks

Get the real deal from ross-tech or find someone local to scan it for you. The knock-off cables have too many issues. The door modules will do all sorts of stuff but it will store a code that vcds will show.

 

[fjparks]

Thanks!

 

[wonneber]

VCDS lite is free and 95%+ functional.
It will scan for codes and more.
Buying the aftermarket cable that works can be tricky.
Don't remember where I bought my cable from but I used it for years w/o problems.

The real VCDS will allow you to use the full version.
I plan to buy the newer cable now that I have newer cars.

 

[gforce1108]

VCDS lite is free and 95%+ functional.
It will scan for codes and more.
Buying the aftermarket cable that works can be tricky.
Don't remember where I bought my cable from but I used it for years w/o problems.
The real VCDS will allow you to use the full version.
I plan to buy the newer cable now that I have newer cars.

I am on my second full VCDS setup. The first worked perfectly for my 04, 98 and even my 95 with the adapter, but once I bought my 13, I traded it in on the newer unit. If you do need it in the meantime - I'm really very close just up the thruway from you!

 

[fjparks]

Hey G Force,
That would be pretty helpful. I'm in Encinitas, where abouts are you?
Maybe I could buy it off you.
Thanks,
James
503-332-8731
fjparks@gmail

 

[gforce1108]

Hey G Force,
That would be pretty helpful. I'm in Encinitas, where abouts are you?
Maybe I could buy it off you.
Thanks,
James
503-332-8731
fjparks@gmail

Sorry - I'm right near wonneber. If I was close to you I'd gladly help! There is a chance someone out there does have it. I traded in my original vcds on a newer version (rosstech has a pretty good trade in program).

 

[fjparks]

Thanks Anyway.
I take it you are not a fan of rockauto.
Who do you recommend for mail order VW parts?

 

[BobnOH]

Here's my partial list
www.dieselgeek.com
cascadegerman.com
www.idparts.com
www.metalmanparts.com
http://www.metalnerd.com/ (tools)
VW Dealership parts-
www.1stvwparts.com
www.expressoemparts.com/
and more at
http://www.tdiclub.com/links/tdivendors.html

 

[fjparks]

Thanks for the info.

 

[wonneber]

I am on my second full VCDS setup. The first worked perfectly for my 04, 98 and even my 95 with the adapter, but once I bought my 13, I traded it in on the newer unit. If you do need it in the meantime - I'm really very close just up the thruway from you!

Thanks for the offer.

The Jetta is a CPO so it has a 2 year warranty.
Only problem so far it ran horrible first thing in the AM a few times when it was cold. 40F or so, not below freezing over night.
This was around last November.
If I let it idle 2 or 3 minutes and drive it may have a slightly rough feel.

Hasn't been to bad lately.
Called the dealer, if there's no code and they can't reproduce they cant fix it.

 

[fjparks]

Thanks STDOUBT,
Fuses S111 and S144 correlate to fuses F and G in the table you posted.

 

[fjparks]

Works Fine (so far)

Thanks for everyone's feedback!
Fuses 111 & 144 in the wiring diagram cross reference to fuses F & G in the fuse table. The relay block is behind the driver's side dash. Turns out the relay panel is two pieces; the main (lower) piece and Aux (upper) piece. Both are retained by the same two 10mm nuts. The fuses themselves are on the top edge of the Aux Relay panel.

I have pictorial instructions but I'm not allowed to post on this forum (because I'm a newbie?)

I tried it and it seems to work without negative effects.
After removing the fuses:
• Alarm does not go off. Horn does not sound and lights do not flash. When the alarm is triggered you can hear a relay clicking and the red LED next to the driver’s door lock knob does flash.
• Power locks and windows still work via key fob and driver side key lock.
• Radio still works.
• Steering wheel horn still works. (It is a separate horn on a separate fuse.)
• Car starts and drives. Steering wheel and transmission shifter are not locked.

 

[fjparks]

Thanks for everyone's input.
Pulling wiring diagram fuses 111 & 144, which cross reference to relay panel table list as uses F & G, disable the alarm with no negative affects (everything else still works)
I have a document on how to do this, but I'm not allowed to post (because I'm a newbie to the forum?)

 

[HippieMatt]

Maybe some context to your query would be helpful here. Because the "alarm system" is resident and part of the CCM, which also does a bunch of other things, the car cannot properly function without the CCM.

If you have a problem where the alarm is going off, perhaps finding out why and fixing it would be better than just trying to mask it.

So, Oilhammer, You seem to know what you are talking about, so on this same basic subject, I have a question you may be able to answer. Before I bought it my 2002 MK4 Beetle TDI got broken into and the stereo was ripped out now the window controls are all locked out and I get that annoying dummy light with the key and the beetle. The only temp fix is to unplug the negative post and then tap it to the positive post on the battery. I am looking to end this annoying problem. Can I wire around the alarm line on the stereo jack? I see that there is a pin on the stereo, but I don't know if it is grounded or it needs a signal of some kind to hoax the computer into thinking the stock stereo is still there? or is this something that I need to edit in the OBD2 port?
Honestly wish that VW would make their old ROMs available, then I could remove all of the annoying clunky computers off of my TDI and run it with Arduinos and a PC.
Thanks for any help you can provide,
Hippie Matt

 

[Nuje]

HTH! (click for larger image)

Took my simpleton brain way too much time to figure out what corresponded to what in this diagram so I color-coded it for myself; figured I'd post here too for others who might share my affliction. (And as above, click it to embiggen.)