Fiat Hitachi immobiliser

[Muddyroads]

Have a Fiat Hitachi wheeled digger (updated version of the Ford 655) which has an immobiliser fitted. It’s a pain in the arse and of no real benefit here so I’d like to remove it. Does anyone know what’s involved?

 

[Mur Huwcun]

Have you had a look on the other side for the wiring and connections? Removed a few fob type from excavators that were all black wires but only spliced into ignition feed

 

[TripleSix]

It will only be intercepting the starter and feed to fuel cutoff.

Won't be anything complicated.
Get the panels off and trace wires.

 

[Muddyroads]

Thanks guys, I’ll take the panel off and have a look. I’d assumed that to be any use for security there would have been more to them than that.

 

[Timbo]

Thanks guys, I’ll take the panel off and have a look. I’d assumed that to be any use for security there would have been more to them than that.

Nope.

 

[Muddyroads]

I took the cover off today and eventually got to this little jobby.
Anyone any ideas about how to remove or bypass it?

 

[TripleSix]

I took the cover off today and eventually got to this little jobby.
Anyone any ideas about how to remove or bypass it?

Follow the wires back to the digger loom...

 

[Muddyroads]

The pair of wires next to my finger are the input from the fob socket, the bunch next to my thumb (8-10) go to the loom and they’re all black!

 

[Timbo]

So, back at the digger loom, youll find a pair of same colours that were cut and joined to a pair of black wires. You need to pair up these coloured wires and re join them. Its imperative you re -make these connections properly and safely, preferably soldered and heat shrinked.

If thats not your skill, itd be better to get someone in that can.

 

[Muddyroads]

Thank you, I’ll take another look, but I’m curious as to why there are so many wires leading from the black box to the loom, when I was only really expecting 2?

 

[Timbo]

Thank you, I’ll take another look, but I’m curious as to why there are so many wires leading from the black box to the loom, when I was only really expecting 2?

You'll surely find some arent connected