Fuel pump wiring in my 96 rav4

Hello, you go about fixing this by seeking professional assistance as this is something that requires some skill and not online guidance. You'd have to have good electrical and mechanical experience to know the first place to look, a DVOM for circuit testing, tools and appropriate manuals to check how to move forward. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops