Electrical short in front left, right rear corner lights...

General chat about the car goes in here.
elston36
Posts: 8
Joined: Wed Sep 03, 2008 1:56 pm
Your car is a: 1982 SPIDER 2000
Location: Appleton, WI

Electrical short in front left, right rear corner lights...

Postby elston36 » Tue May 16, 2017 11:56 pm

I know it's likely a bad ground, but need help to find it. '82 Spider 124, keeps blowing the fuse (#8?). Left front marker light and right rear tail and marker lights go out.

Thanks,
Donald

GTO
Posts: 38
Joined: Sun Oct 24, 2010 10:31 am
Your car is a: 1973 Spyder 1756
Location: UK

Re: Electrical short in front left, right rear corner lights...

Postby GTO » Wed May 17, 2017 6:13 am

Just yesterday had the same problem. In my case it was the dash panel dimmer rheostat switch going to earth. On my 73 1800 the power goes via it. Again in my case it was a yellow/red wire.

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
Contact:

Re: Electrical short in front left, right rear corner lights...

Postby spider2081 » Wed May 17, 2017 6:40 am

I know it's likely a bad ground, but need help to find it

Generally this term refers to a "ground" connection that is not making good contact. This would not cause a fuse to blow.
A wire that is touching ground that shouldn't causes a fuse to blow.

I think fuse 8 also has on it the trunk light wire and the cigar light wire. The trunk light wire is a common source of your problem.
The bottom of fuse 9 should have 2 yellow/black wires on it one is for the dash associated lights and one is for the tail and marker plate lights. I would remove them one at a time and see which one is causing the fuse to blow.

Hope this helps

KWL82
Patron 2018
Patron 2018
Posts: 48
Joined: Mon Sep 19, 2016 9:48 am
Your car is a: 1982 spider

Re: Electrical short in front left, right rear corner lights...

Postby KWL82 » Wed May 17, 2017 9:52 am

i'm the farthest thing from an expert but on my 82 the po sloppily installed aftermarket junk radio that for some reason was causing the same problem, plus shorting interior light and cigarette lighter. removed radio, replaced fuse and now just enjoy the sweet sounds of engine revs and wind

TX82FIAT
Posts: 1814
Joined: Mon May 03, 2010 11:04 am
Your car is a: 82 Fiat Spider 2000 CSO
Location: San Antonio

Re: Electrical short in front left, right rear corner lights...

Postby TX82FIAT » Wed May 17, 2017 11:52 am

Sounds like a hot to ground issue. Does the fuse blow as soon as you turn the car on or only when turning the lights, turn signals, brakes or putting in reverse. This sure does sound like a hot to ground issue. On the 82 a PO pushed a copper wire through the loom under the dash creating a hot to ground situation. Another fiat owner said they had the same thing so maybe the folks at the factory at some point thought it was a good idea to attach a wire loom to a metal support with a copper wire. Look for lose wires that are frayed or connection points that could touch metal creating a surge in amps and blown fuse.
Buon giro a tutti! - enjoy the ride!

82 Fiat Spider 2000
03 BMW M3
07 Chevy Suburban


Return to “Fiat Spider Related”

Who is online

Users browsing this forum: No registered users and 44 guests