dimmer switch relay

Hello, if it was me, my first step would be to remove the headlight switch and inspect the wiring connector at the switch. It could be that terminals are damaged. It could also be a faulty switch. It could be both. Hands on testing helps figure out if the circuit is intact and the switch is faulty. A body control module compatible diagnostic tool is also helpful, as you can monitor functions of the control modules and see if anything is of concern. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops