Ground?

[fiat218]

If you look at the yellow wire, is that going to a ground, i think it is but making sure

[spider2081]

Wow that is a great looking set of wire diagrams you have there. Did you make them??

I think the yellow wire is dash lights. I would need to trace tit to its source to know for sure. A lot of cigar lighters have a light on the side of them that is connected to the dash lights. it lights a greenish blue ring around the cigar lighter. The ground for the cigar lighter is often a spade connector on the outer case of the cigar lighter housing.

[fiat218]

Artigue diagram
https://www.mirafiori.com/faq/content/6 ... MPLETE.pdf

Two yellow comes from the light. Red is lighter' but the yellow off to the side goes to that black thingy. But it show it as a ground. But on the lighter there no yellow wire on that tab.just a tab alone

[spider2081]

If you follow the left most yellow wire at the cigar lighter in the diagram, I believe it goes to the dash light dimmer. If your cigar lighter does not have the black plastic lamp holder on the side of the cigar lighter it might not be the original lighter or your car might not be wired per this diagram. It is often difficult to tell a faded yellow wire from a discolored white wire in these harnesses.
The red wire is power to the cigar lighter and there should be a black wire that attaches to the case of the cigar lighter that is ground. Be careful to insure the black wire is actually a ground. In some cases Fiat used black for a +12 power wire. There should be a male push tab (spade connector) that is part of the cigar lighter shell for the ground.

[fiat218]

Button switch for electrovalve energizing during fast idie rate
adjustments .\
can some one show me a photo of this

[fiat218]

This sorting the wiring is a great challenge,
I am getting it done slowly, but i feel that JUST maybe one relay that i am missing may help a lot in having things work. It is on it way,i did order it, power and ground feed off of other units to make it all come together, so hoping the end is near

[fiat218]

I am not going to make another post to asked questions, so i will just kinda stay on this one
Years ago i did send in the back taillight housing and got them rechromed ( 69 )
If your familiar with them as you know how that sockets are on there, looking at that is there away to remove the socket tabs ( what ever you call them ) and put them on a differnt set, they are not rivited on but it looks like it is just on with a tab and flatten down, looks like it may come off after a little pry but?
Any one do this

[klweimer]

I haven't touched my tail light circuit boards, but I know I've seen a couple of threads on the topic. Seems like someone retrofitted theirs with LEDs.
Kirk

[fiat218]

It not a circuit board

[fiat218]

It not a circuit board

any one ever take off the back part and put it on another housing, same year of course

[njoconnor]

Jim: my 72 had riveted bulb sockets, but it was relatively easy (if tedious) to drill out the rivets and replace the socket with one from a trashed 72 taillight I had laying around. See this post:

http://www.fiatspider.com/f15/viewtopic.php?f=6&t=27626

The replaced socket works great! I'd say, go for it!

Neil