Was pumping gas and my lights shut off. Turned the switch off and on, no lights only headlights.no tail, no side marker , no cluster lights , inside lights working . checked fuses, all good. Turn and brake lights working.

CHeck your trailer plug wiring and the plug itself.

Multi-function switch (dimmer switch) sometimes will burn out causing this problem.

My head lite, tail lite, dash dimmer switch used to get so hot when running at night while towing. You couldn't hardly touch it. I finally added a long heat sink piece of copper to the back of the switch. This helped alot, but, the best way is to use relays to solve the heat problem by not running everything thru the switch.

Do you dim you panel lights? If so that is the reason for the hot headlight switch. If the panel dimmer is all the way up on bright then it never gets hot.

It's been a long time but I think I tried all different ways to stop the heat. It would only happen when running lites/ tail lites and marker lites on the tow vehicle were on at night.

I dunno what year your truck is, as there's no sig information, but the pre-98 trucks with the pull-type switch were commonly faulty.

I dunno what year your truck is, as there's no sig information, but the pre-98 trucks with the pull-type switch were commonly faulty.

Thanks Guys , the switch was bad.

Thanks Guys , the switch was bad.

I have had to replace two of them plus the plug on my truck

I dunno what year your truck is, as there's no sig information, but the pre-98 trucks with the pull-type switch were commonly faulty.

My 98.5 still has the pull type switch.

Was pumping gas and my lights shut off. Turned the switch off and on, no lights only headlights.no tail, no side marker , no cluster lights , inside lights working . checked fuses, all good. Turn and brake lights working.

...well theres your problem! hahaha!