Removing aftermarket immobiliser on CB500

[Scotchydog]

Hi

I have a 2001 Honda CB500 which as an old aftermarket Datatool UNO immobiliser fitted the touch key no longer disables the bike and would like to remove it completely as I only have 1 key the bike is garaged and only park in closed off areas plus I really don’t think the bike is worth Nicking

I have taken the rear panel off where the unit is stored and can see all the units harness and where I think it is spliced into the main harness I can also see where the 3 amp fuse is powering the unit

Is it now just a case off undoing the black electrical tape and tracing the cables back and rejoin them on the original harness I spoke to somebody on the phone from Datatool and he said I need to joint out 1 with 2 and 3 with 4, if somebody can tell me what that means I do have electrical experience being an electrician just don’t have a great deal of experience with auto electrics or removing immobilisers lol

If any one as any advice I would really appreciate it before I start trying to remove it this weekend

Thanks Anthony

[Fozzie]

From the sounds of it, he's saying link out the terminals 1 and 2, and the same with 3 and 4. He's using an old electricians trick commonly referred to as "When in doubt, link out"

So open up the unit, you should have 4 terminals, and if the man from Datatool is right, they should also be numbered. Take a picture of the unit first so you can put it back if it doesn't work. Then disconnect the first two and link them together, and the same again with the other two.

Then, providing his instructions were true, that should be it. You can of course trace the now joined wires back to where they break into the loom and repair the loom there.

For reference, the alarm will probably break into the ignition line, and the indicator line. So it stops the bike from being able to start, and makes the indicators flash in an alarm situation.