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Guest
Guest
I found this mystery box dangling by my rear tyre, it was filled with water. My indicators have been wonky all day (not working, not indicating). Is this box responsible for that? Or does it dos something else?
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I found this mystery box dangling by my rear tyre, it was filled with water. My indicators have been wonky all day (not working, not indicating). Is this box responsible for that? Or does it dos something else?
It's supposed to. The rubber thing on it hangs it on a tab on the side of the battery box. It's one of the three wire variety which probably means you have a TSCU, turn signal control unit, about the size of a cigarette pack. The TSCU is supposed to turn the signal off. The wonkiness could be from either the TSCU or the relay or both or the wiring. Mine is disconnected and removed from the bike and I have replaced the three wire relay with a standard two wire unit still using the three wire plug. Water is not good 
G
Guest
Guest
It's supposed to. The rubber thing on it hangs it on a tab on the side of the battery box. It's one of the three wire variety which probably means you have a TSCU, turn signal control unit, about the size of a cigarette pack. The TSCU is supposed to turn the signal off. The wonkiness could be from either the TSCU or the relay or both or the wiring. Mine is disconnected and removed from the bike and I have replaced the three wire relay with a standard two wire unit still using the three wire plug. Water is not good
IS the tscu the box hanging next to it by the battery?
I am hoping that letting it sit the right way might make it drip out the water.
Most probably. It might have a six wire plug.
Drain the water would be my first attempt as well.
Steve
GS Whisperer
If re-orienting it and draining the water does not help, be advised that you will NOT find a replacement at your local auto parts store. You will need the official Suzuki part.
Although this part has three terminals like many other flashers, it is unique. In all other three-pin flashers, the third pin is a ground (earth) connection. The Suzuki flasher's third pin is a control wire from the TSCU (turn signal control unit).
Basic operation of a two-pin thermal flasher has a power wire coming in and the 'flashing' wire out. Standard three-pin flashers have a timer that controls the flash. The timer runs on the power wire and the ground. The Suzuki flasher appears to have a small built-in relay that controls the power to the thermal flasher. The third wire grounds the relay, and is controlled by the TSCU.
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Although this part has three terminals like many other flashers, it is unique. In all other three-pin flashers, the third pin is a ground (earth) connection. The Suzuki flasher's third pin is a control wire from the TSCU (turn signal control unit).
Basic operation of a two-pin thermal flasher has a power wire coming in and the 'flashing' wire out. Standard three-pin flashers have a timer that controls the flash. The timer runs on the power wire and the ground. The Suzuki flasher appears to have a small built-in relay that controls the power to the thermal flasher. The third wire grounds the relay, and is controlled by the TSCU.
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G
Guest
Guest
But you can use a standard 3 pin solid state flasher if you are willing to give up the auto-cancel feature. Mine never worked, so I don't miss it at all.
Mark
Steve
GS Whisperer
If you're willing to give up the auto-cancel, you can get by with a 2-pin flasher.
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G
Guest
Guest
So after forgetting about this for a couple of months, I came back and was convinced my battery was empty because the indicators didn't indicate. I was so confused when the charger said the battery was full when I still didn't have any indication. Then I remembered about this situation.
Since it must have dried staying for a couple of months in the garage, I figured something else must be going on.
I shook the unit and it had sand coming out, based on the amounts falling out in the garage it must have been full.
So I opened up the TSCU:
I found more sand and the innards of the TSCU.
I cleaned it the best I could with a moist papercloth, I didn't have any compressed air or isopropanol so I just gently dabbed it. The rubber coating I just washed in the sink with some dish soap and dried thouroughly. I used some steel wool to clean the contacts.
All clean and ready to assemble.
I am happy to say it works now. There is a little thing on top with some slight distance to the contact thing, I blew on that. The unit would also not indicate without the rubber casing, I am uncertain why. But now it indicates as expected. I had to leave it on for a bit before it started working, so wait a minute or so before concluding it doesn't work. Engine was off, so lower voltage and its probably only barely above freezing in the garage.
Since it must have dried staying for a couple of months in the garage, I figured something else must be going on.
I shook the unit and it had sand coming out, based on the amounts falling out in the garage it must have been full.
So I opened up the TSCU:
I found more sand and the innards of the TSCU.
I cleaned it the best I could with a moist papercloth, I didn't have any compressed air or isopropanol so I just gently dabbed it. The rubber coating I just washed in the sink with some dish soap and dried thouroughly. I used some steel wool to clean the contacts.
All clean and ready to assemble.
I am happy to say it works now. There is a little thing on top with some slight distance to the contact thing, I blew on that. The unit would also not indicate without the rubber casing, I am uncertain why. But now it indicates as expected. I had to leave it on for a bit before it started working, so wait a minute or so before concluding it doesn't work. Engine was off, so lower voltage and its probably only barely above freezing in the garage.
I was going to say that the surface of the contacts, where the contacts should meet, are what need your attention.
When you said battery was empty, I think you mean it was quite low, as in really low.
If battery voltage is only low some, the indicator should still light up, but might not flash or flash slow.
If one bulb is burnt out, or missing, the total current draw will be less, and that will make the flasher not flash.
G
Guest
Guest
My 1982 GS 1100G (?Model Z? I?ve been told) has no turn signal control unit. There IS a flasher but it was so corroded, it is beyond repair. The part number for the flasher is 38610-49231, but I?m not paying $52 for a simple relay. When I plug in the corroded relay, all turn signals light, but do not flash. There is not a TSCU, OR electrical plug for a TSCU on the bike. I?m thinking the indicators aren?t flashing because the contacts inside the 3 prong flasher are corroded so bad....
The wiring diagram in my Clymer manual shows a TSCU, but again, there is no connector or mounting place for said unit. The connector for the flasher resembles a headlight connector, but when I plug in a $12 AutoZone flasher, nothing happens.....I?ll figure it out and will soon become the new turn signal expert!
The wiring diagram in my Clymer manual shows a TSCU, but again, there is no connector or mounting place for said unit. The connector for the flasher resembles a headlight connector, but when I plug in a $12 AutoZone flasher, nothing happens.....I?ll figure it out and will soon become the new turn signal expert!
Have a look at Steve's post #5. Have you bought a two or three pin flasher?
