Not starting issue

[Aide transit]

I have a Ford transit that will start but then throws anti skid and AB’s lights on then cuts out soon as you use lights or widow wipers then the ignition switch will turn on and go straight off when you try and start it but it will not start leave it a couple of hours then it will start again it’s all charging until the anti skid light comes on need help I have tried all the obvious like relays and stuff but can’t find the fault even tried a new transponder on the ignition and still nothing can any one help best regards aide

[knobby1]

I have a Ford transit that will start but then throws anti skid and AB’s lights on then cuts out soon as you use lights or widow wipers then the ignition switch will turn on and go straight off when you try and start it but it will not start leave it a couple of hours then it will start again it’s all charging until the anti skid light comes on need help I have tried all the obvious like relays and stuff but can’t find the fault even tried a new transponder on the ignition and still nothing can any one help best regards aide

Assuming Mk7..?? Euro-4 or Euro-5..?? You don't say what model Transit you have. Twin batteries..??

Have you replaced the ignition switch itself..?? They're well known for causing all sorts of electrical gremlins. Earths are a common cause of issues too, especially the ones on the inner wing under the PCM behind the passenger headlamp.

Lord Knobrot