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Hi, I am Mike, welcome. I'm reviewing your question.
is the wiring, relays, fans, fuses from the trike or from a 2007 Ford and if from a Ford, what model?
The cooling fan relay was in the battery junction block on the ranger as seen here,
Do you have this battery junction block (BJB) from the Ranger or just some makeshift relays installed somewhere?
From what I see the cooling fan relay is grounded through the pcm so if you can ground the cooling fan relay at the white/violet wire and get the fan to run, then the problem has to be with the pcm. It could be the pcm itself, or data it receives from anything else including the cylinder head temperature sensor.
Since that pcm communicates through data lines, I believe the next best step is to have those trouble codes retrieved and give them to me. You could try to rent or borrow a scan tool or at least a code reader.
That is up to you whether or not you want to rate me well so I get 1/2 of the deposit you had already made or if not, then you have the right to ask for your deposit back, but if you decide to just do nothing, I get nothing and your deposit will just sit there.