Dash lights, front and rear parking lights and tail lights not working on my 72 240Z

[jalexquijano]

All of a sudden my tail lights, dash lights and front and rear left and right parking lights do not light up. The head lights do work. Already checked the fuse box and the instrument / dome light and the rest of fuses are good. Where do i check next? All bulbs on the tail lights are fine. Where else shall i check? I have both of daves upgrade circuits installed.

Edited December 26, 2017 by jalexquijano

[w3wilkes]

Hmm... What's in common to all those circuits??? Maybe the combination switch on the steering column. You didn't mention turn signals, do they work?

[jalexquijano]

problem fixed. it was a 15 amp fuse on Dave´s Parking light harness. Wondering how would you clean all the female sockets on each and every lamp of the car? Sandpaper or contact cleaner?