1993 International Cabover 9670 Headlight Relay

Where in the truck is the headlight relay located? I have low beams but no highs. I checked the dimmer switch and it is swapping legs properly.

 

Yeah I pulled the headlights out. They light up on low beam but high they do not. Installed one new lamp because when I pulled the lamp out it just came apart (H6054 lamp). I thought that would have been the issue but it was not. According to International there is a relay but they could not tell me where. I found schematic on a Facebook group but it does not say where it is located just shows headlight relay. Even found pictures of the relay online. No idea the people that had the truck were part of a carnival group and it did not even have marker lights on the front. I had to wire in lighting for those.