Hazard light setup. What am I missing?

[Wwiifan]

working on my 83 k10. History is I bought the truck and all oem wires were gone. Had a painless harness installed. Only enough wires were connected to make the engine run. I wired up the rest for everything I needed. Now I’m trying to tackle the hazard lights.
At the multifunction switch I see 8 wires. 4 of them go to the lights at each corner of the truck. All brake, turn, tail, headlight and marker lights work at all 4 corners. So I know those r good. One goes to the horn relay. Horn works so that circuit is good. One goes to the brake switch. Brake light works so that one is good.
I saw on rock auto a hazard relay. Where is this on your trucks and how is it wired?

 

[Matt69olds]

I would think the Painless harness would address the hazard lights. Factory wiring has power going to the hazard flasher, then coming out of the flasher on a purple wire (I think) into the turn signal switch. I assume you have the instructions for the wiring harness?

 

[1987 GMC Jimmy]

As far as location goes, your year had it in the fuse block.

 

[Wwiifan]

Is the turn signal flasher and hazard flasher the same one or two separate?

 

[1987 GMC Jimmy]

They’re separate units.