Apologies for resurrecting this thread , but I am not having much success with the substitute immobiliser plug.
I have got around to making the immobiliser bypass plug as described above, and checked for continuity and shorts with my multi meter and all is ok.
My only concern with the plug is the pins dont project through very far through the socket body, but roughly the same as the original.
I can hear them click into place with the latch in the socket body, so have assumed thats ok.

But when I plug it in and ignition on, I get :
Headlights on
Indicators on
Many dashboard warning lights on.

I have not tried starting the engine as this is clearly wrong and I dont want to risk damaging anything.
On reverting to normal with the bypass plug out and the original in , all is ok !

I am aware the original socket has more pins in use than the new bypass plug uses?
I dont profess any skills as an auto electrician , but I do know my way around a soldering iron and building basic electronic circuits and gadgets, so not a complete newbie.
That said I think I must be missing something obvious !

There is only one socket the new plug would fit, so I am think I am plugging into the right one, though I cant track that socket back to what I think is the immobiliser box.
Does this look ok?
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