Need your help once again eg experts!

I have a 2000 ex motor in my eg hb, the problem I have when I bought the car last year was the radiator fan not turning on, I had one of my boys look at the wiring and he said the "male" part of the wiring harness is fried, so my only question is, do I need to replace it with an obd1 or obd2 wiring? Please please please give me some info here. Thx.

 

which wiring harness are you running the obd1 or obd2?

 

thats my question, since I have a 2000 ex motor in my car does that effect the radiator wiring as well? See where I'm getting at??? So basically the motor I have is obd2 and wouldn't make sense that the radiator I have as well would be obd2 as well or not? That is what confuses me????