2006 Pete 379 blowing interior lamp fuses

You have a short! The first thing I would check would be the light bulbs. They can blow and the filament fall down into the base and short out. You could also have a short where a wire has rubbed through and is touching metal. Look for where the harness makes a hard bend around or through a metal bracket or the like. Have there been any interior mods? I would check them very close as well. Shorts can be very hard to find. A short locator can help. Good luck

 

Do you have a spot light ?
its pretty common for the wires at the switch to get twisted
and cause dome light issues.Do check all the front cab bulbs first,likely to be one of them on the left side of the cab.

 

also ck your door switchs and wiring that goes to them.

 

My 08 has self dimming interior lights,the lights slowly go down after you close the door. Mine have been giving me some trouble and i think it is the rheostat/dimmer. I originally thought it was the door switch but that did not cure my problem. Good Luck!

 

Was wondering if you figured out this problem my roof was leaking and same thing is happening to me roof fuse keeps blowing