I own a 2002 SD 7.3 Crew. It has a package from Western Hauler that is mostly cosmetic, but includes lighted running boards, lighted headache rack, Firestone air suspension and a tow brake controller. I got in the truck yesterday and have lost power to a bunch of lights.
I have no instrument panel lights. Radio, overhead computer, interior cab lights all still work. Exterior roof cab, marker lights, running board lights and tail lights are out. I found this thread
that sounds like the exact problem I'm having, but it's for a 2006.
I need to know if the information for the '06 is the same for my '02. If not, can someone please point me in the right direction? I'm great with mechanicals, electronics confuse the heck out of me.
On a possibly related note, when I shift into reverse, the tape player will cut out for about 10 seconds. This started about 3-4 weeks ago.
P.S. Whoops, I forgot to mention that the "lights on" chime reminder does not work either. Also, when the headlights are on, the radio and computer lights don't dim. It's like they don't recognize the headlights are on.