Ground?

Gotta love that wiring . . .
fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Ground?

Postby fiat218 » Sun Jan 22, 2017 6:52 am

Image

If you look at the yellow wire, is that going to a ground, i think it is but making sure
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider

spider2081
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Your car is a: 1981 Spider 2000
Location: Wallingford,CT
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Re: Ground?

Postby spider2081 » Sun Jan 22, 2017 8:23 am

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
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: Ground?

Postby fiat218 » Sun Jan 22, 2017 8:33 am

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
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider

spider2081
Patron 2024
Patron 2024
Posts: 2967
Joined: Fri Jan 27, 2006 11:45 pm
Your car is a: 1981 Spider 2000
Location: Wallingford,CT
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Re: Ground?

Postby spider2081 » Sun Jan 22, 2017 1:34 pm

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
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: Ground?

Postby fiat218 » Sun Jan 22, 2017 4:22 pm

Button switch for electrovalve energizing during fast idie rate
adjustments .\
can some one show me a photo of this
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider

fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: Ground?

Postby fiat218 » Tue Jan 24, 2017 5:21 am

This sorting the wiring is a great challenge, :shock:
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
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider

fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: Ground?

Postby fiat218 » Tue Jan 24, 2017 5:39 am

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
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider

klweimer
Posts: 550
Joined: Tue Mar 27, 2012 7:45 am
Your car is a: 1982 Spider 2000
Location: Arvada, Colorado

Re: Ground?

Postby klweimer » Tue Jan 24, 2017 7:43 am

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
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: Ground?

Postby fiat218 » Tue Jan 24, 2017 8:02 am

It not a circuit board
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider

fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: Ground?

Postby fiat218 » Tue Jan 24, 2017 3:19 pm

fiat218 wrote:It not a circuit board

Image


any one ever take off the back part and put it on another housing, same year of course
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider

User avatar
njoconnor
Posts: 614
Joined: Thu Jul 05, 2012 7:06 pm
Your car is a: 1972 124 Spider

Re: Ground?

Postby njoconnor » Sat Feb 04, 2017 8:00 am

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:

viewtopic.php?f=6&t=27626

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

Neil
Neil O'Connor
Madison, WI
72 FIAT 124 Spider
12 Jeep Grand Cherokee Overland Summit
14 Ram 1500 Laramie Longhorn Eco-Diesel
ex-71 FIAT 124 Coupe
and a host of Audi's, Saabs, VW's, MOPAR's, Fords, and a Bimmer....


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