i have a 93 dodge w150 and my head lights come one when i turn the switch on but all my other lights are off the tail lights dont come on the parking lights are off the only thing that comes on is my head lights if i pull the switch a little bit to the running lights position my dash lights come one and my tail lights and running lights but as soon as your turn the lights to the on position my head lights are the only thing that come on i have my whole dash apart trying to find the problem and i cant find it at all.

 

have you tried changing the switch?

 

Yes replace it twice both switches do the same thing am going to post a link to a video i made

 

Here is the video

 

Do you have a wiring diagram for the lights?

 

No I can't find it on google been looking for it for days and have found nothing on the issue

 

Think I might be tempted to search for a service manual for sale somewhere.... or maybe check with your local library. Or maybe a 'free trial' over at alldata.com?

 

Andrew, did you get this problem fixed? I have the exact same problem on my 93 Dodge 3/4 ton diesel truck. Any advice about where to start would be appreciated.

Richard.

 

I found the diagram below with a google search and only took a few minuets. There are more than one positive power leads to the switch.