"Thanks, EnvoyBoy2004, While using the following link, https://www.youtube.com/watch?v=QgPfUrkliUg&t=53s
, I have completed all test. slot 2 is a positive voltage, slot 6 is ground, slot 4 can power the headlights, but slot 5 indicates no voltage when the headlights are turned on. Furthermore, I have replaced the headlight switch with no change, plus I have checked all fuses for continuity and the headlight relay 46. In my ignorance, I assumed I am not getting a ground thru slot 5. Thanks again"
Thanks all who have replied.