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Speed Sensor Question

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68ragtop

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I am adding sensors to my 96 GSX. I picked up a speed sensor, compass & outside air temp sensor.
I received the speed sensor today but it doesn't have the same wiring as my info sensor.
Both are three wire, but The info sensor has BLK/ORN TAN/ORN & PU/YL The wires on the sensor are BLK BLU/PU & PU/YL The BLU/PU is throwing me off a bit. Does that connect to TAN/ORN, or isn't this a compatible speed sensor.

The part number on the sensor is 278000583. When I google it, it shows 96 XP, but I could find anything that showed GSX


Any ideas?
 
The best I can tell, BLK/OR might be common, TAN/OR could be temperature & PU/YL would be speed pulse?

Are there different styles depending on instrumentation in the ski?
 
that part number is the same as shown for my 95 gtx which doesn't have lake temp, and is a 3-wire sender. the 96 GSX didn't have a speedo from the factory, the 97 used a part number 278001998, which is just the sensor. according to the microfiche, it is only available in peices from seadoo anymore, so you'd have to buy the connector, seal, and paddlewheel separately. how annoying.

i might be in the market for that speed sensor if you need to get rid of it, i can let you know after i get my replacement speedo gauge.
 
you have picked up the correct wires out of the info centre, but there should also be a single BL-RE there as well for the speed sensor. There is no cross reference that I can find that will match those wires on the info centre to the ones you have in your hand.
 
I over paid for this sensor becasue the seller was including the cable to go to the front. However, its way too short.

I think I am coming to realize there was more than one version of this speed sensor. This one I bought was advertised to fit many models including the GSX & XP, but I am thinking the XP used a different sensor, & the XP sensor is used for speed only three wire, & the GSX used the tree wire for speed & temp.

Am I correct?
 
you have picked up the correct wires out of the info centre, but there should also be a single BL-RE there as well for the speed sensor. There is no cross reference that I can find that will match those wires on the info centre to the ones you have in your hand.

There is a single wire hanging from the info center, but that would leave me with four wires total?
service manual calls that wire (speedo sensor reference)

The service manual has some misleading info. It says the lake temp sensor is a two wire connector....
 
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The exterior temp wires coming out of the gauge should be TA-WH and BL-WH. If I had to guess you have the wiring and sensor there that would normally get hooked into an analogue gauge and not an "info centre" gauge. Sorry, wish I could be more help, but I'm stumped too.
 
Single Bk-RE goes into the electrical box. you will need to an extension piece if it did not come with the package.
 
Yes, it does have the two wire harness with the (TAN/WH & BL/WH) I currently have that plugged into an outside temp sensor & its working perfect.

I am pretty sure I have some of it figured out..... It looks to me like the XP style gauges use an "active" style speed sensor. Im other-words, it gets 12V power to the BLK(-) & PU/YL(+) then sends a signal back on the BLU/PU

Then the GSX uses a "passive" style non-powered senser the BLK/OR is common, TAN/OR is Lake temperature & the PU/OR is speed.

Can anyone confirm my theory?
 
the 96 GSX didn't have a speedo from the factory

are you talking about the analog gage to the right side of the info center? Mine has the tach there, But it is supposed to have the digital LCD speedo in the info center, This ski didn't come with all the extra options. But So far, the compass, & exterior temp sensor just plugged in & worked.
 
are you talking about the analog gage to the right side of the info center? Mine has the tach there, But it is supposed to have the digital LCD speedo in the info center, This ski didn't come with all the extra options. But So far, the compass, & exterior temp sensor just plugged in & worked.

Right, those were dealer options I believe, if you look for the speed sensor in the 96 Gsx diagram, youll find only the ride plate cap, which fills the space for the absent speed sensor. The part number I posted above is the one for the factory speed sensor in the 97 Gsx.
 
That does help clear up some of my confusion. I saw in the GTX wiring diagram they show the temp/speed sensor, but in the GSX they show nothing, just the connector out of the Info center.
 
Most XPs would be a 2 wire. Only the 03-04 had an info center.

Ooops, Sorry about that. I guess I am not sure then what models came with the speedo & the BL/PU output wire on the speed sensor, but there seems to be two styles from what I am gathering.
 
Hi Lou, Yep, you did post on it & I did read about the swap. I wasn't trying to add a speedometer just yet (however I might do that in the future), just trying to figure out the 3-wire sensors. I was planing on just using the speedometer on the info center for now.
I had no idea there was more than one version 3-wire sensor. They look identical otherwise. I bought one on ebay that was advertised to work on the GSX, but it is becoming pretty clear this one is not correct.
 
The one you want is like for a 96-97GTX or a 97GSX, I think the part no. is in the thread.

Lou
 
The one I bought is from a 96 XP, but it was listed to be correct for a GSX as well. I now know this is not true, but unfortunately I didn't know any better when I bought it. I now realize there is more than one 3-wire type. I'll call it a $45.00 lesson learned. If anybody needs the earlier style, let me know. I'll purchase the correct one this time around.....

Thanks Guys!
 
Truth be told I made the same mistake, I have an early model speed sensor also, I did make use of the paddle wheel on another ski. How would you like to have a matched set?

Actually if you don't need the speedometer and want the lake temp. sensor the one you have will work.

Lou
 
So just to be clear for the 96 GSX you can pick up a 96-97GTX or a 97GSX speed sensor and plug it into the existing factory info gauge and get a speed reading. Or does the tach need to be swapped out for a speedo gauge? I'm looking at doing the same project.
 
So just to be clear for the 96 GSX you can pick up a 96-97GTX or a 97GSX speed sensor and plug it into the existing factory info gauge and get a speed reading. Or does the tach need to be swapped out for a speedo gauge? I'm looking at doing the same project.

I have been looking at the service manuals & other info. It would seem the 96GTX, or 97 3-wire speed sensor is what you need. But I see one problem is the wiring harness in the 97 GSX isn't same as the 96 GSX, & the schematics show the 97 GSX uses a two wire speed sensor. so you might also need to make a longer three wire harness to get from the info center to the speed sensor. Pretty minor deal though. Like was mentioned above, 96 used both style speed sensors depending on the model ski & the instumentation it had. Still not sure why the single BLK/RED wire needs to be gounded in the electrical box. The Info center is already grounded there through the BLK & PU two wire harness that loops through the tach. I just bought a NOS speed sensor & a speedo wiring harness from a 96 GTX. I think thats going to work with only a couple simple mods to the harness.
 
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I have all the "correct" sensors installed now. The reason the BLK/RED wire has to be grounded is to activate the Speedo functions on the Info center. That was bugging me seeing the info center already had a ground , but now I understand what its for.
 
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