Hi
I had a transponder fail when away from home which meant a tow home.
I bought the plug and connected loop wires as per wiring diagram. Ie B158 to B158 etc
Has been working for some years now.
There is also a very thin black wire, the lead from the sensor wiring near ignition lock, this has a fragile connector which caused non functioning of immobiliser too.
Using the jumper plug ( pic of Morgan version below) takes this out of consideration
![[Linked Image]](https://www.tm-img.com/images/2020/06/21/C153111C-49A0-4516-A1D2-ADD6C880C27D.jpg)
![[Linked Image]](https://www.tm-img.com/images/2020/06/21/6953E28F-5E78-4178-90A6-5537E87612EA.png)
![[Linked Image]](https://www.tm-img.com/images/2020/06/21/F1C0F972-7821-499F-A320-CCEBB0CA61EF.png)