On my 89 blazer I have power locks and neither side works, I checked and the switch has power running to it but still does not work, so I have been trying to find the location of the power lock relay and I can not find out where it is, can anybody help me?

 

In an 89 Blazer the lock wires are a 5-wire system. There's not relays. As far as troubleshooting, I'm not 100% sure. I'd question if your switches are working properly, or whether there's a broken wire in a door boot. To interface an aftermarket keyless system here's the diagram. Maybe this will help you figure it out. I'm too tired to think it through right now. Good luck.

 

I tested the wires and confirmed they are getting power yet nothing happens when I try to lock/unlock the locks on either door and also advanced and autozone both sell these power lock relays but nobody can tell me where it is lol, please help