1st Gen TSCU LED Relay Mod

[RadRacer]

So, you have a functioning 1st generation TSCU unit, and you want to wire up some LED blinkers? So do I! So, I did it, and here's how:

1st, you need an electronic flasher. I bought this one from my local auto parts store (Advance Auto). It is a EP34 model. If you get a different one, the wiring will be different: Left should be earth/ground, middle the load, and right the 12V.



2nd, you're going to need a ground wire. I just used some spare I had, probably somewhere around 14AWG. It doesn't need to be very long, just to go from the flasher to a ground or the battery terminal.

Let's get started!

Find your old flasher relay. It's on the left side of the bike, under the cover.




Wiggle it on out, and unplug it. Be careful, the plug may be brittle. Mine cracked on one side when I removed it.

Here's the old flasher (top) compared to the new one (bottom):



But wait! The old one has 2 connections and the new one has 3! The 3rd connection on the new flasher is the ground.

Let's run that ground. I went straight to the negative battery terminal with it. Run it down and over where the flasher harness it, and crimp/solder a female spade plug to the end.



Let's hook it up! Plug the ground you just ran into the ground on the flasher. Plug the factory harness into the remaining pins. Mount how you choose; I just stuck a ziptie around it




And that's it. You now have an electronic flasher running with your 1st gen auto-cancelling TSCU. And yes, it does still auto cancel

Here's a wiring and pin-out diagram of the 2 flashers:


Here's mine in action; I have no front signals yet, so the factory flasher didn't work because of the reduced load.

 

[posplayr]

Nice mod; a before/after drawing with wire color, relay nomenclature would be nice for anyone trying to follow. Pictures help but still leave much to the imagination.

 

[RadRacer]

Nice mod; a before/after drawing with wire color, relay nomenclature would be nice for anyone trying to follow. Pictures help but still leave much to the imagination.

That is part of the beauty of this. You don't have to mod or rewire any of the factory harnesses. You run 1 additional ground wire, which can be any color of your choosing. Once that's hooked to the relay, the factory harness will only plug in one way.

 

[posplayr]

That is part of the beauty of this. You don't have to mod or rewire any of the factory harnesses. You run 1 additional ground wire, which can be any color of your choosing. Once that's hooked to the relay, the factory harness will only plug in one way.

Doesn't look like you used the factory plug to attach to the flasher.

 

[RadRacer]

Doesn't look like you used the factory plug to attach to the flasher.

With the exception of the extra ground, the factory plug fits perfectly on the new flasher. Once you wire up the extra ground, the factory plug will plug directly into the remaining 2 terminals with no modification; and there's only 1 way you can install it.

 

[posplayr]

With the exception of the extra ground, the factory plug fits perfectly on the new flasher. Once you wire up the extra ground, the factory plug will plug directly into the remaining 2 terminals with no modification; and there's only 1 way you can install it.

Well I'm sure anybody can figure it from your explaination.

 

[RadRacer]

Well I'm sure anybody can figure it from your explaination.

I'm assuming you forgot a "not" in your post? If so, how would you like me to further explain it? The point of the how-to is to simplify it, and I think going into detail on what each wire does when they don't have to mess with them any will just be more confusing.

 

[posplayr]

I'm assuming you forgot a "not" in your post? If so, how would you like me to further explain it? The point of the how-to is to simplify it, and I think going into detail on what each wire does when they don't have to mess with them any will just be more confusing.

Actually I left out an "eventually".

There are many ways to simplify an explanation but the best way is to be concise. Here is a graphical example, but it could be done in tabular form as well(shown below the schematic).

One is what is called a "daisy chain" list of "point to point" connections(each row). The other a schematic showing unambiguously colors, pins and mating connector nomenclature (a picture).

http://www.thegsresources.com/_foru...d-TSCU-MOD-for-LED-Conversions&highlight=TSCU

 

[RadRacer]

Actually I left out an "eventually".

There are many ways to simplify an explanation but the best way is to be concise. Here is a graphical example, but it could be done in tabular form as well(shown below the schematic).

One is what is called a "daisy chain" list of "point to point" connections(each row). The other a schematic showing unambiguously colors, pins and mating connector nomenclature (a picture).

http://www.thegsresources.com/_foru...d-TSCU-MOD-for-LED-Conversions&highlight=TSCU

Again, I believe you're trying to over-complicate this. This is a very simple mod. Unplug the factory flasher unit, run a ground wire, and then plug in the new electronic flasher. This works only for the 1st generation TSCU that uses a 2 wire flasher. Maybe that's why the you don't recognize the plug I used?

 

[posplayr]

Again, I believe you're trying to over-complicate this. This is a very simple mod. Unplug the factory flasher unit, run a ground wire, and then plug in the new electronic flasher. This works only for the 1st generation TSCU that uses a 2 wire flasher. Maybe that's why the you don't recognize the plug I used?

This is now post 10 to this thread, so it is not simple. But then what do I know about simple? Perhaps 90 more posts will make it even simpler?

What I do know is it is NOT concise(other than your last post as highlighted and excluding the adornments).

 

[RadRacer]

This is now post 10 to this thread, so it is not simple. But then what do I know about simple? What I do know is it is NOT concise.

Yes, post #10. Have you noticed the only posts are from you saying this is needed, and me saying it isn't? Not 1 single post from someone saying they don't understand or need clarification. Just you saying how I should post a wiring chart when it's unnecessary. I believe there is plenty of information here. Especially considering I couldn't find any before I began this mod. I know you've made a mod for the other TSCU to use electronic flashers. This is a different setup for a different TSCU.

 

[RadRacer]

(other than your last post as highlighted and excluding the adornments).

Did you even read the first post? Everything I said in the post you quoted is said in the original post, in more detail.

 

[posplayr]

Did you even read the first post? Everything I said in the post you quoted is said in the original post, in more detail.

Listen, I'm not dumb and I could figure this out on my own faster than reading this thread. But after going over the description about 4 times over and still couldn't figure out what your were trying to say.

What is not clear is the order of the three wires. If you had shown the NEW relay installed with the OLD OEM connector as in the first picture with the OLD relay, it would have been VERY clear even without you saying it. But since you seem to have cut off that OEM connector that you showed in the first picture one is left to wonder what the order is.

I truly have better things to do that argue with you; but you asked

 

[RadRacer]

Listen, I'm not dumb and I could figure this out on my own faster than reading this thread. But after going over the description about 4 times over and still couldn't figure out what your were trying to say.

What is not clear is the order of the three wires. If you had shown the NEW relay installed with the OLD OEM connector as in the first picture with the OLD relay, it would have been VERY clear even without you saying it. But since you seem to have cut off that OEM connector that you showed in the first picture one is left to wonder what the order is.

I truly have better things to do that argue with you; but you asked

Never did I call you dumb. I've said it 3x now, and I'll say it again. THE FACTORY PLUG PLUGS DIRECTLY INTO THE NEW FLASHER. I added a diagram to the original post, tell me if it's up to your standards.

 

[posplayr]

Never did I call you dumb. I've said it 3x now, and I'll say it again. THE FACTORY PLUG PLUGS DIRECTLY INTO THE NEW FLASHER. I added a diagram to the original post, tell me if it's up to your standards.

I don't know whether it meets my standards but I'm sure others would appreciate it.

 

[posplayr]

Never did I call you dumb. I've said it 3x now, and I'll say it again. THE FACTORY PLUG PLUGS DIRECTLY INTO THE NEW FLASHER. I added a diagram to the original post, tell me if it's up to your standards.

Look I give you plenty of credit for realizing how to do this mod. The notion of abstracting the flasher replacement to the connector makes knowledge of specific wiring of the harness unnecessary.That is the most important part of the modification which was obscured by the multitude of pictures that failed to show using the same connector.

The simplest explanation would be two pictures:

1. old RELAY/old connector
2. New relay /old connector plus ground

Nothing else required to know and anybody that looked at it would know immediately. This basic concept was lost in the explanation and certainly lost on me otherwise I would not have asked for a wiring diagram which at this point simply adds to the confusion.

The simple statement really says it all.

Originally Posted by RadRacer
Again, I believe you're trying to over-complicate this. This is a very simple mod. Unplug the factory flasher unit, run a ground wire, and then plug in the new electronic flasher. This works only for the 1st generation TSCU that uses a 2 wire flasher. Maybe that's why the you don't recognize the plug I used?



These don't look the same; they look like you split the connector

 

[GSXR7ED]

I think I'll stay with my stock set up indicators. Good points on here.

POS, you're very detailed with regards to schematics and process completion.


Ed

 

[RadRacer]

These don't look the same; they look like you split the connector

View attachment 49548

Again, it's the original connector. The connector isn't oriented exactly the same, but it will only plug in one way once the ground is on. That, plus the fact that mine cracked some when I removed it, might cause you to think it's not the same one. But I assure you, it is. I guess because I know what I'm looking at that I understand it.

 

[posplayr]

I think I'll stay with my stock set up indicators. Good points on here.

POS, you're very detailed with regards to schematics and process completion.


Ed

My calling beckons:

Two things about this thread occured to me early on but I did not mention them as they would only seem to detract from the OP contribution. But the now the irony of it requires I spill all.

1.) It was not coincidence that the OP chose to purchase an EP-34 flasher. I would bet dollars to donuts that the inspiration for this came from my other thread on the 2nd GEN TSCU mod.

http://www.thegsresources.com/_foru...d-TSCU-MOD-for-LED-Conversions&highlight=TSCU

2.) The irony of this is that there is NO need to use the EP-34, as there are two pronged LED compatible flashers that abound.

https://www.amazon.com/CARCHET-Sign...coding=UTF8&psc=1&refRID=X5VY3PYBH2865BM9MKW2

https://www.amazon.com/AUDEW-Electr...485395935&sr=8-1-fkmr1&keywords=EP-34+flasher


3.) The final irony is that the 1st Generation TSCU's are becoming more rare each day as they currently seem to be at about 10% End-of-life for most of the existing ones. So those people needing a LED flasher for their 1st gen TCSU are going to be rare.


4.) Finally, for that rare person that has:
A.) a working 1st gen TSCU that still works
B.) just so happens to have a EP-34 flasher in their drawer

For this person the OP solution is majestic!

 

[RadRacer]

My calling beckons:

Two things about this thread occured to me early on but I did not mention them as they would only seem to detract from the OP contribution. But the now the irony of it requires I spill all.

1.) It was not coincidence that the OP chose to purchase an EP-34 flasher. I would bet dollars to donuts that the inspiration for this came from my other thread on the 2nd GEN TSCU mod.

http://www.thegsresources.com/_foru...d-TSCU-MOD-for-LED-Conversions&highlight=TSCU

2.) The irony of this is that there is NO need to use the EP-34, as there are two pronged LED compatible flashers that abound.

https://www.amazon.com/CARCHET-Sign...coding=UTF8&psc=1&refRID=X5VY3PYBH2865BM9MKW2

https://www.amazon.com/AUDEW-Electr...485395935&sr=8-1-fkmr1&keywords=EP-34+flasher


3.) The final irony is that the 1st Generation TSCU's are becoming more rare each day as they currently seem to be at about 10% End-of-life for most of the existing ones. So those people needing a LED flasher for their 1st gen TCSU are going to be rare.


4.) Finally, for that rare person that has:
A.) a working 1st gen TSCU that still works
B.) just so happens to have a EP-34 flasher in their drawer

For this person the OP solution is majestic!

Wow, I knew something was up from the get-go with you.

I have a working 1st Gen TSCU and I wanted to use LED turn signals. Not wanting to reinvent the wheel, I searched for someone else who's done the mod. I didn't find any. Plenty referencing the 2nd gen, but almost nothing for the first. After reading the issues people have had with the 2nd Gen TSCU, I wasn't sure if I would be able to do it and retain the auto-cancel on my bike. A quick look at the wiring diagram, and it looked like I should be able to. So, I decided to write one up for anyone else thinking about doing the mod.

1) You're right, it was not coincidence that I chose the EP34. I compared my stock setup to what the parts store had. This was the easiest replacement. Had nothing to do with your mod.
2) You're right. I had no clue these flashers existed; all electronics flashers I've seen have been 3 or more pins. All of the 2 pin ones I've seen are mechanical.
3) You're right again. They aren't as abundant as the 2nd gen, but there's still people out there with them. Excuse me for wanting to make things a little easier for them and sharing my knowledge.

Maybe I should put a price tag on my knowledge and charge people for it, like you do?

And, BTW, I'm no dummy either. I have plenty of experience in electronics, and this mod was a cake walk for me. I simply wanted to make it easier for those not as knowledgeable as me. I had no intentions of teaching a master wizard like yourself anything.

I will humbly bow-out now, as I am obviously inferior to you. Maybe a mod can come and clean this thread up, or even delete it. You've altered my view of TGSR and I doubt I'll be back here much