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How to bypass a Datatool System 3 Motorcycle Alarm

15/09/2011

16 Comments

 
Picture
Picture
Not exactly Sonic Sideshow information I know - but damn useful all the same. And it’s kind of hacking… anyway what good is a sideshow without transport?

The alarm systems go off all the time when you’re not wanting them to, get tired and lock you out of your own bike in remote lay-bys, drain the battery when the bike’s in storage, cost loads of you loads of money and generally are a bit crap. Basically if you want to look after your bike, you need to get a shed. You probably need one anyway.

I suppose people might be a bit cagey about the wiring information as a security measure, but that means that it costs hundreds of pounds to install an alarm, and then loads more to take it out again when it breaks. A decent install splices the alarm into the guts of the bikes main wiring loom so to work out what each cable does from first principles you have to get pretty intimate with the innards. Also all the cables come with colour code tags for install, but all the cables are black, so that after install you can’t tell what is what.

There are two big cable connectors on the inside, one block of six and one of eight. Here are those colour codes:

Orange –led indicator

Yellow/green – external alarm/ radio pager

Grey – led indicator

Green – protective trigger switch (to fire if a bike panel is lifted)

Green – protective trigger switch

Brown – to something that goes live with the ignition switch

Black x2 – earth

Red – power

***********************

White – immobilisation

White – immobilisation

Pink – indicators

Pink – indicators

Yellow –starter immobilisation

Yellow - starter immobilisation

Stuff like indicators are just spliced onto the bikes main loom leaving it operational, so if you cut the power to the unit they just work as normal. But the immobilisation part cuts the main loom and sends the circuit via the alarm, so these have to be bridged. There’s normally a circuit break immobilising the starter motor, and another immobilising the ignition or fuel pump. These are controlled by the white and yellow tags on the smaller cable block. So just bridge both the whites, and bridge the yellows to bypass the unit while leaving all of the wiring in place (as shown in the photograph).

And that’s it. It’s such a relief to be rid of it!

If you're thinking of using this information to steal motorbikes - you're an asshole. Why not take up tech art? You'd be a natural.

 


Comments

Tom link
07/02/2012 6:37pm

Brilliant! so in affect what does this hack actually do? just bypass the imobiliser? will the alarm still go off?

Reply
Nathaniel
20/04/2012 10:24pm

Hi Tom
this should disconnect the alarm completely, as you have to unclip the terminal blocks to bridge them.
N

Reply
dave
25/05/2012 5:43pm

Hi Nathaniel
I lost the spark off my bike it still turns over fine and all else is ok on dash. Bike shop has given it the once over and have come up with the problem being the alarm. I have read your piece and followed it but have had no joy and still no spark. Can you offer me any suggestions. I have also already checked wiring in common problem areas ie head stop.
Many thanks
Dave

Gareth
06/03/2012 2:39pm

Just wanted to say thankyou very much...after the alarm gave up responding when I got to work this morning leaving me immobilised 40miles from home I wasn't looking forward to the journey back home on the back of a lorry....found this and it worked a treat...had to destroy the alarm casing to get to it but the bike starts!! Cheers

Reply
Nathaniel
20/04/2012 10:30pm

Hi Gareth
Glad I could help! Mine locked me out in a layby at the wrong end of the M4... it feels pretty miserable - coz you haven't even really broken down properly!
Take care
N

Reply
nico link
25/03/2012 6:21pm

best ever information given to me on that piece of s**t of an alarm,
took me al but 10 minutes to be able to start the bike, put in the links, removed the internal battery, inline fuse, and rode my bike again. thank you very much.

Reply
Nathaniel
20/04/2012 10:32pm

No problem! Glad it came in usefull
N

Reply
Gethin
04/05/2012 12:51pm

Nathaniel, could you confirm that you have to remove the inline fuse and internal battery in order to bypass, many thanks in advance, I am a very frustrated and angry Datatool hater and I want rid of my immobilisation nightmare!

Gethin
04/05/2012 12:53pm

I intend to have a crack at this hack when I get home, if it works, I could kiss you but I wont!

Burglar Alarm link
12/04/2012 10:43am

Great information on your site here. I love this post because we can get some useful information from your blog. I expect more post from you guys.

Reply
glyn
28/04/2012 9:03pm

I have done what you have said but im still having problems, when i try to start it now the part that the battery leads connect to make a funny noise, any throughts

Reply
nathaniel
04/05/2012 9:23pm

Hi Gethin, Glyn
Its been a good while since i looked at this now - but as far as i recall once both the white terminal blocks are disconnected then the unit is not connected at all, so there shouldn't be a need to disconnect the internal battery or fuse. (If part of the unit makes a noise when you try and start, surely one of the terminal blocks must still be connected?)

Reply
Gethin
06/05/2012 8:11am

Hi Nathaniel, I took the inline fuse out and battery thingy from circuit board, put the bridging links in using a giant sized paper clip and the bike started first time, Thank you very much for posting your solution, I have saved myself around £100. Cheers buddy.

Reply
bike tour paris link
07/05/2012 8:05am

I havent any word to appreciate this post.....Really i am impressed from this post....the person who create this post it was a great human..Thanks for shared this with us.

Reply
petz
13/05/2012 3:39pm

thanks for the info, couldnt start bike for work yesterday, today bein sunday cudnot find any1 to give me advice, ten minutes and back on the road. thanks again.

Reply
tam
21/05/2012 4:02pm

thanks mate. by-passed the useless thing.works a treat now.

Reply



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