Hi,
It sounds like you may faulty headlamp bulbs, This is were I would start, Access the headlamp bulbs I sent you a link below on how to replace headlamp bulbs. Check for 12 volts at the bulb connectors for both low beams and high beams, If you have 12 volts across the circuit replace the bulbs. Ken sent you wiring diagrams for you to find the right wires to check. Please let us know what you found.
Thank you, Joe Terwilliger
https://youtu.be/TGe7qiflDqQ
Thursday, December 12th, 2019 AT 3:34 PM