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2011 Massimo HS500UTV-EFI third temp switch?

htrotte

By htrotte
in Hisun UTV SxS Forum

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htrotte Rookie

htrotte

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While troubleshooting an issue with temp warning light I discovered another temp switch mounted in the pipe going to the head  The two switches are literally 6 inches apart.  Does anyone know what this third switch is used for?  If i can figure out how I will post pictures.

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Finally got the pictures took.  See the photo and tell me if you know what the switch on the right is.

It looks to be factory and I know the girl who bought it new and she didn't install it.

I can't find anything on it in any manual i have looked at.  Any help would be appreciated.

SXS TEMP SW.jpg

  • 2 weeks later...
aefron88 Community Regular

aefron88

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One is for the overheat light, and one feeds the ECU coolant temp for fuel mapping adjustments. I believe the one on the head itself is the ECU one.

There's also a third one in the radiator that controlls the fan.

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