Mercruser 3 Lt 2006 egnition circuit cut off when I turn the key

[Oliviermorant]

I just don't know what to do???? When I turn the key to start the engine, the electrical egnition circuit cuts off,then,after one minute or so the power is back on.
The power trim electrical circuit is not affected at all.
It's only the egnition circuit.
What can it be??????

 

[Bondo]

Ayuh,...... Welcome Aboard,....... My guess is the key switch,....... test it with a test light,.....