Q: No headlights and high beam indicator light on

Hello. There is not enough information to definitively say what the issue is. Do the headlights not work when they are on normally, or on high beams? If this is the case, the issue is likely pertaining to the power supply for the bulbs. The switch is responsible for taking the power supply from the fuse box and battery and completing the circuit to send the voltage to the bulbs to illuminate them. If no power is getting through, the fuse or the switch may be to blame. The fuse is a safety device that is meant to blow and break the circuit when needed. The fuse is the first place to start. If the fuse is good and you have power to the switch, turn the switch on and check for voltage after the switch. If there is no voltage available, then the switch has failed and needs to be replaced. Start by checking the fuse, and then the switch.