I have a 1987 Dodge W250 that I’m working on and there is clearly an issue with the wiring. When I try to turn on the headlights only the dash lights and the lights on top of the cab come on. I discovered that the left turn signal light wasn’t connected so I plugged that back in. After connecting the turn signal light I tried to turn on the headlights the dash lights came on and the right turn signal light turned came on on the dash and when I tried to turn on the left turn signal all the lights started flashing including the dash lights and work lights and both turn signal lights
