1950 burb 12v

I recently finished a complete wire harness installation. Part of this install included a reproduction light switch.

When I mounted the switch and pulled it out. The dash lights didnt come on and smoke came out.

I took the switch out of the dash and discovered that the little brass tab that moves around the spring for dimmer had gotten red hot.

I did notice that the dimming function is barely noticeable and the little tab was weak against the spring. I bent the tab towards the spring to make better contact and it hasn't happened again.

Anyone have a similar experience? Any idea what is happening?


1950 SUBURBAN / SCHOOL BUS A.K.A "THE SCHOOL RUST"