Apantozo Posted August 1, 2020 Share Posted August 1, 2020 I'm totally puzzled. My Comanche is a 1988 and when I turn on the headlights, the tail lights and running lights don't come on, but when I put my foot on the brakes they do come on. Also when I'm towing my trailer, the trailer running lights don't come on unless I put my foot on the brakes. It's not a fuse and I just replaced the switch clearly not the switch. Where is the ground so I can check it next? Link to comment Share on other sites More sharing options...
jdog Posted August 1, 2020 Share Posted August 1, 2020 Auto or man's trans? Ground is behind the driver's tail light Link to comment Share on other sites More sharing options...
ghetdjc320 Posted August 3, 2020 Share Posted August 3, 2020 I know it sounds stupid, but carefully inspect all your bulbs and sockets. Link to comment Share on other sites More sharing options...
WahooSteeler Posted August 3, 2020 Share Posted August 3, 2020 4 minutes ago, ghetdjc320 said: I know it sounds stupid, but carefully inspect all your bulbs and sockets. I had a bulb not working because the old dialectic grease that was in there had hardened and created a loss of metal contact. You never know...... Link to comment Share on other sites More sharing options...
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