Turn signal switch

[blamejane]

Hey guys, having trouble with the wiring diagram on my new turn signal switch. The instructions don't say, but I assumed the colored wires are installed left to right into the plastic housing. After getting everything back together, I am getting a fast blink on the right side, and neither front or rear right signal comes on. After checking the fuse and replacing the bulbs, which really didn't need replacing, fast-blink still occurs. So I decided to re-wire the opposite of the chart.

Is it possible to take each wire, one at a time, and plug them into the male wire, and expect it to work? That is, without using the plastic housing? For instance if I connect yellow/black to one of the male connectors, then the next, then the next to see which one works? The reason I ask is because I can no longer get the left blink to even function, when it was working before diagnosing my fast blink issue.

BTW, both blinkers worked before I replaced the switch.

Thanks for the help.

 

[EPB72]

https://seabiscuit68.tripod.com/

a link to wiring diagrams may help..another thing to look at is the female terminals can open up and cause poor connection issues...by doing what you describe your also checking the terminal contact tension,,if any are loose you can sqeeze them down a bit ..

 

[Bronco-Brian]

These can be tricky - I always use the Tom's schematic as different years use different colors and it can cause confusion. Also, I connect the t/s connector to the main harness before pushing in the t/s pins to it. This helps me keep them all straight - but must know the color to color schematic. Hope this helps.

https://tomsoffroad.com/pages/schematics/turn-signal-wiring-schematic/

 

[blamejane]

https://seabiscuit68.tripod.com/

a link to wiring diagrams may help..another thing to look at is the female terminals can open up and cause poor connection issues...by doing what you describe your also checking the terminal contact tension,,if any are loose you can sqeeze them down a bit ..

Thanks for the link and the info about the female terminals; will definitely look i to that.

These can be tricky - I always use the Tom's schematic as different years use different colors and it can cause confusion. Also, I connect the t/s connector to the main harness before pushing in the t/s pins to it. This helps me keep them all straight - but must know the color to color schematic. Hope this helps.

https://tomsoffroad.com/pages/schematics/turn-signal-wiring-schematic/

Thanks for the tom’s schematic link. Also just curious what the t/s connector to the main harness means. Are you saying putting female connectors to the male connectors?

Anyways just want to say thanks for the responses!

 

[Bronco-Brian]

Assuming you reuse the factory connector from the old turn signal (t/s) switch.
Strip out all the old wires/pins from the t/s switch side connector (coming from the column). Plug the 2 connectors (plastic ones) together. Then follow the color code and insert the pins to the plastic connector. Lowers the chance of messing up.

 

[jckkys]

The individual pins are easy to rearrange in the connector. But you have to remember that turn signal switches need replacement more often than many other parts. Any new replacement for your present new one will have the same wiring arrangement. So it will make replacement a lot easier for yourself or any new owner, for you to set the harness side of the connector match the switch side. I did this with my '78 Bronco switch connector that has less to do than many other switches. By the way what is the source vehicle for your new switch?

 

[blamejane]

The individual pins are easy to rearrange in the connector. But you have to remember that turn signal switches need replacement more often than many other parts. Any new replacement for your present new one will have the same wiring arrangement. So it will make replacement a lot easier for yourself or any new owner, for you to set the harness side of the connector match the switch side. I did this with my '78 Bronco switch connector that has less to do than many other switches. By the way what is the source vehicle for your new switch?

Thanks for the tip about re-arranging the harness side to match the new t/s switch side. I found out the hard way that I should have kept the pins in the original order that I had installed them, as (understandably) nothing worked after re-wiring following the install guide. After blowing a few 20amp fuses I put the pins back following the OE switch. At this point I everything functioning except the right rear brake/blinker/hazzard (bulb is new). I'm gonna take the steering wheel/hub off and check if there's a problem with the wiring for the new switch; damaged when inserting down the steering column possibly.

Anyway, the only other problem I have that I'm not sure is related is the new steering wheel horn button is 2-wire connector and my bronco needs 1-wire. So currently no ground wire connected to the new horn button.

The new switch is from WH. I don't think it's the switch, but a short somewhere.

 

[DirtDonk]

You can't mix and match an early steering wheel with a late turn signal switch.
Well, you probably "can" do it, but it will take a fair amount of extra work and might not be worth it unless you just have to have that early style wheel.
And if that's the case, it's probably easier to install an early turn signal switch in the first place.

Unless you make one of the changes needed, your horn will likely never work as expected while you have a 2-wire wheel and a 1-wire switch.

Paul

 

[sprdv1]

You can't mix and match an early steering wheel with a late turn signal switch.
Well, you probably "can" do it, but it will take a fair amount of extra work and might not be worth it unless you just have to have that early style wheel.
And if that's the case, it's probably easier to install an early turn signal switch in the first place.

Unless you make one of the changes needed, your horn will likely never work as expected while you have a 2-wire wheel and a 1-wire switch.

What he said...

 

[jckkys]

You need to define what you mean by a late switch. When adapting my '77 harness to work my '78 turn signal switch I grounded one wire in the steering wheel itself by drilling and threading a hole in the steel part of the spoke. It now functions with the '77 horn relay. The '78 switch was used for many years so there are many out there, even NOS. The '78 is only 1 year newer than the '77, so early and late descriptors are hard to apply.
The pre-relay '66-'73 horn switches have no hazard switch. So that's the early type to me. The '74-'77s are the late EB switches. The '66-'73 switches only work with a much different harness than the "late" ones. Specifics are needed.

 

[mmp142]

All,

Good morning. I have pulled the dash out of my 1974 chasing guage cluster (ie. fuel, odo not working). I have all my running lights and flashers are working but no blinkers, fuel guage, or odo.

I recently changed out my rear tank with with a TBP complete rear tank assembly. Any ideas on how to get the blinkers back along with fuel guage and odometer?

 

[blamejane]

All,

Good morning. I have pulled the dash out of my 1974 chasing guage cluster (ie. fuel, odo not working). I have all my running lights and flashers are working but no blinkers, fuel guage, or odo.

I recently changed out my rear tank with with a TBP complete rear tank assembly. Any ideas on how to get the blinkers back along with fuel guage and odometer?

Sorry to hear of your electrical issues, wish I could help. Maybe start a new thread on this forum describing in detail what was working, what changed, etc.

In my case, after removing the steering wheel, hub and new t/s switch we saw that the green wire (rear passenger blinker) had been completely cut by a screw used to attach the switch to the steering column.

Good luck.

 

[DirtDonk]

I have pulled the dash out of my 1974 chasing guage cluster (ie. fuel, odo not working). I have all my running lights and flashers are working but no blinkers, fuel guage, or odo.

Is the dash still out? What about the steering column? Just wondering what all has been re-installed to help narrow down the problem(s).
Definitely qualifies for it's own discussion thread. Just go ahead and click on the "start new topic" or whatever it says, and give us the rundown.

I recently changed out my rear tank with with a TBP complete rear tank assembly. Any ideas on how to get the blinkers back along with fuel guage and odometer?

Fuel gauge and odometer are two completely different systems as you may know. The odo is mechanical and the fuel gauge fully electrical. Assuming the water temp gauge works? If so there are a lot of tests that we can run down for you, to narrow down the problem.
You can include both questions in the new thread, or separate them into separate threads if you want. But personally I prefer keeping them together since it's all about the dash area at this point.

Good luck!

Paul

 

[BradGP]

These can be tricky - I always use the Tom's schematic as different years use different colors and it can cause confusion. Also, I connect the t/s connector to the main harness before pushing in the t/s pins to it. This helps me keep them all straight - but must know the color to color schematic. Hope this helps.

https://tomsoffroad.com/pages/schematics/turn-signal-wiring-schematic/

Hope this will help my buddy for his incoming Bronco project. We'll just finish installing the brake kit, wheels and tires plus alignment on the Wrangler before we can clear the garage. Gonna check out that diagram. Thanks

 

[lhinterman]

This is a good thread! I am going to bump it so that I can find it when I get back to my turn signal problem, which is verry similar.

 

[sprdv1]

This is a good thread! I am going to bump it so that I can find it when I get back to my turn signal problem, which is verry similar.

lol, good idea..