Lost signals and hazard

Gotta love that wiring . . .
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BCbrad
Posts: 17
Joined: Mon Jul 23, 2012 7:39 pm
Your car is a: 1978 Spider 1800

Lost signals and hazard

Post by BCbrad »

Hello,

I have lost the signal lights and the hazard light. There does not appear to be and blown fuses. Where should I start? Electrical really isn't my forte but I think I can resolve this with a little guidance.

Thanks,

Brad
narfire
Posts: 3959
Joined: Sat Dec 27, 2008 2:14 am
Your car is a: 1980 124 spider
Location: Naramata B.C.

Re: Lost signals and hazard

Post by narfire »

First I'd clean up the fuse holders under the dash, left side. I have a little dremel with a wire brush for the top and bottoms. Some steel wool for top and bottom of the fuses themselves.
Get a wiring diagram and chase down where they ground and clean that/those as well.
80 FI spider
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box
spider2081
Patron 2024
Patron 2024
Posts: 3025
Joined: Fri Jan 27, 2006 11:45 pm
Your car is a: 1981 Spider 2000
Location: Wallingford,CT

Re: Lost signals and hazard

Post by spider2081 »

I believe all the Spiders emergency flashers operate from the "hot all the time" circuit in the car. The signal lights operate from the "hot in start and run" circuit in the car. The common points that could cause a failure of both is the Hazard switch itself. The power source is selected by the hazard switch. If it fails or becomes unplugged you will loose signal and Hazard lights. I think the 78 shares the same flasher for hazard and signal so that is another point to check
kmoses
Posts: 366
Joined: Thu Sep 11, 2014 10:28 pm
Your car is a: 1979 Spider 2000

Re: Lost signals and hazard

Post by kmoses »

On the steering column under the dash on the left side there is a metal socket called the "test socket" with two wires going to it. The power to the flashers and hazard switch goes through it, if you have unplugged one of the wires the turn signals and hazard flasher will not work. I spent two days with a multi-meter trying to trace power and found a wire off there that was tucked up in the dash by the previous owner.
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aevansgatech
Posts: 346
Joined: Mon Jul 27, 2015 2:51 pm
Your car is a: 1982 Spider 2000

Re: Lost signals and hazard

Post by aevansgatech »

I'm unclear whether you had it disconnected and now need to re-install it, or if the signals/hazard stopped working while installed.

I've run into that a couple times and it was always as simple as connecting the wires to the hazard switch (fully seating them) or making sure the hazard button isn't stuck halfway between on and off. A stuck hazard switch will disable all that functionality.
1979 Spider 2000 (gone)
1984 Pininfarina Azzurra (for sale)
1982 Spider 2000 (here to stay)
BCbrad
Posts: 17
Joined: Mon Jul 23, 2012 7:39 pm
Your car is a: 1978 Spider 1800

Re: Lost signals and hazard

Post by BCbrad »

spider2081 wrote:I believe all the Spiders emergency flashers operate from the "hot all the time" circuit in the car. The signal lights operate from the "hot in start and run" circuit in the car. The common points that could cause a failure of both is the Hazard switch itself. The power source is selected by the hazard switch. If it fails or becomes unplugged you will loose signal and Hazard lights. I think the 78 shares the same flasher for hazard and signal so that is another point to check
We got a winner!! Months ago I was messing with the stereo and must have pulled the connector loose. Thanks for all your input.
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