[Coppertop]

isn't the lps fuse powered by the headlight switch?

Yup. After it pulls power for the dash light circuit from the tail lamp fuse.

That's why you won't see any power unless the headlight switch is pulled out and the dimmer is fully rotated to the "brightest" position. (And as Dean stated, the tail lamp fuse must be good).

Helpful Headlight Switch Info

Thought I'd post this since there seems to be a number of postings revolving around the headlight switch and it's functions... The pictures are typical of the 1968-1972 units. 1964-1967 units have an extra connector by the blue headlights power output wire--it's a purple wire--this is the...

www.chevelles.com

 

[Coppertop]

Thanks for all your help to this point, now there is power to the terminals marked LAMPS,LPS, and INST.

Now how do I hook up the courtesy lights? I don’t think it would be LAMPS or ACC, or IGH. That leaves BAT FUSED, is that the correct spot? Don’t want to mess something else up.

Yes. Courtesy circuit is hot at all times. Courtesy lights power comes from BAT fused.