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Yes, the contactor does close when I short Pin 4 to Pin 3 on U9 (with a pencil lead point). I have the controller on the bench with just the 12 volt supply going to it. It is on a board with the contactor and fuse as an assembly, making it easy to connect and remove from the car.
I will let you know if i cannot find a suitable optocoupler here.
Amin
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