Jumping, not bypassing, the hazard switch

[bran100]

I found a few references to bypassing the hazard, however I'd rather just jump the hot lead directly to the turn signal to preserve the functionality of both circuits, as a fail safe to my touchy hazard switch.

Looking at the '82 wiring diagrams, it looks like I can jump the red lead going to the hazard, to the violet lead going to the turn signal switch.

Has anyone tried this, or can verify that this should work?

Wiring diagram: http://www.artigue.com/fiatcontent/Wiring_1980_1982.pdf

[seabeelt]

The way the circuit works is that the hazard switch is a two pole switch. with the switch closed ( hazards off) power goes to the turn signals. with the switch open, power is interrupted to the turn signals and goes to the 4 way flashers. If you jump the hazard switch you will have power to both circuits when you should not and they will not work properly.

[dmwhiteoak]

Hating to highjack a thread ,what would cause the blinkers only to work when the hazzard switch was in the on position? I have tried two other switches and have the same result. I was also thinking of bypassing the switch,
.

[seabeelt]

Could be a couple of things. Grounds, bad flasher, mis wired. What year cars are we talking about? I can take a look at the wiring diagram if I know.

[dmwhiteoak]

The car is a 78. I just replaced the wiring harness and everything worked normal until last week. I tried other flashers so I ruled that out. I haven't had alot of time to work on it but I have several days off now so its time to get it done.

[spider2081]

dmwhiteoak
I am not sure I understand you problem. Are you saying your emergency flashers work properly and when the flasher switch is in the off position your turn signal lights do not work?

[majicwrench]

Certainly you can just install a jumper in the hazard switch and get the turn signals working. I did it on my 72 at one point before I got a functional hazard switch.
Hazrd switches fail, and the wiring gets mixed up, either of which causes turn signal issues.

[dmwhiteoak]

The hazzard lights will not work at all. The blinkers will not work unless the hazzard switch is in the on position. Tomorrow I will take my volt meter along with the wiring diagram and get to the bottom of this. I was a accually hoping someone had this problem in the past and might save me a few hours. It always seems it takes longer to work through electrical gremlins than mechanical. Thanks all and as always I'm open to suggestions. I will check grounds first thing.

[spider2081]

Here is a link to a schematic for a 1978 Spider Hazard/signal light circuit.

http://www.globallistics.com/spidersweb ... mes/25.jpg

I think fuse 1 is powered in the "start and run" position of the ignition switch. Fuses 9 & 10 are powered all the time even with ignition switch off. So your hazards should work with ignition switch off powered through fuse 10.
You can email me if I can be of additional help
flyme194@gmail.com

[seabeelt]

Dennis, just for grins, check the switch operation with the meter first ( any of the ones you swapped out) this will eliminate the switch as a culprit - all other things being equal. If test ok, my next guess would be a ground or the emergency flasher failure.

[dmwhiteoak]

No time today to work on the turn signals, I did
Drive it to town to pick up parts for other vehicles and equipment on the home front. Hopefully I will have a chance tomorrow to take a look at it. It seems that everything wants to lay down or take spells at the same time.

[jdeight]

@dmwhiteoak: did you resolve your problem? my hazards only work when the turn signal is engaged. if the hazard switch is off, then the turn signal alone does nothing. sounds like you had same complaint? did you solve it?

[Nanonevol]

A new hazard switch is only @ $11 at A/R. For some reason a late switch for 79-82 is @$90. I suppose I can see trying to bypass that one, but hazards are an important safety feature I would think.

[spider2081]

The push switch on the 1980 Spider is in the "Turn Signal" position when it is pushed in and stays in, and in the "Hazard" position when it is in the out position. It is common for the mechanical operation of the switch to fail and it does not stay locked in the Turn Signal position. I think power for "turn signal" is fuse 1 (closest to the steering column) and power for the "Hazard" is fuse 9