Immobiliser issue

[tomtomtom]

Hi all

So, as some of you may know, I collected a discovery the other day that i bought.

It didnt come with any keys for the doors, or the ignition, and the PO used to start it with a screwdriver! It is however, completely legit. The PO could be arsed with changing stuff when he lost the keys so bodged it instead.

Now, when I bought it, I fitted a new igntion barrel and switch. Fine. Engine started and ran like a good'un.

As of today though, when I connected a battery, the immobiliser armed itself, and as soon as I opened the unlocked doors, the alarm went off.

How do I disarm the immobiliser?

Tom

 

[landowner]

You put your door key in the drivers door, then you..
forgot you dont have a door key

 

[discool]

Sorry, what model/year is your disco ?

 

[gazdav]

Then get a lock smith as you
Are fooked IMO

 

[tomtomtom]

My disco is a 1993 3dr 200tdi (Disco 1)

At the moment, I am trying to work out whether it would be more feasible to break it for spares, or rebuild it...

It used to work fine when I started it, but all of a sudden, the immob seems to have armed itself?

Thanks
Tom

 

[discool]

Active immobilision then, it's a simple system and set/unset via a fob or the key in the drivers door look.

 

[tomtomtom]

Thanks for the help so far, thats my problem though, I dont have a key (or a fob) for the locks. It has just been unlocked the whole time I have had it so far!

Nothing has changed on it, which is why Im confused as to how the immob armed itself!?

 

[The Mad Hat Man]

is it tspider problem?

 

[blackhadder]

Oh dear, oh dear. I believe you are up a certain creek without a certain instrument. Logically though, if you have a wiring diagram, surely you can isolate the immobiliser?

 

[gazdav]

A spider bypass is proby needed that should work

 

[discool]

A spider bypass is proby needed that should work

On a 200 series disco

 

[gazdav]

On a 200 series disco

Ok maybe not then.

 

[gazdav]

But!!!!!! Could be the fusible link? Under the bonnet in the main loom of cables coming away from the battery will be what looks like a cloth tube around one of the cables - inside this is a fusible link - basically a smaller cable soldered into the main feed cable - it's pretty common for the soldered joints to corrode away to nothing or creating a high resistance joint.