Next time this happens, turn on the head light switch so you have something to watch for. Look for where that smaller battery positive wire connects to the fuse box. Wiggle that wire or tighten the nut. If there is a bad connection there, you will see some minor sparking when you wiggle that wire, and the head lights will come on.
Also, follow the smaller battery negative wire to where it bolts to the body. Be sure that connection is tight and not rusty.
Monday, November 6th, 2017 AT 3:30 PM