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Fan switch

268 Views 7 Replies 3 Participants Last post by  crazyflyboy30
Hey people, I’ve had no luck finding anything for my year of quad. 2019 1000xp

my fan use to work properly then it broke so I got it replaced. Anywho my fan when first warmed up will turn on at 92c down to 86c then every time it gets higher then it’ll kick on at 94 then 96 and eventually as I’m riding it only kicks on at 106 down to 99 then backat 106. I just pulled the rad and cleaned it spotless and new fluid.
Tested the cb for resistance and it’s .1 ohm, not really a perfect path but damn close. My engine temps read on dash. Not quite sure why it doesn’t keep up or stay on too cool too it’s set point. Should it not be on if it’s over 100c forsure? I get off and check the fan and it isn’t spinning and when it does spin it drops it 6-8 degrees then off again
When is it suppose to kick on and off?

also curious if anyone figured out how to wire a manual switch. I looked over the circuit, but I don’t fully understand how the ecu is triggering the 4 pin rela. I found the constant hot and the output to fan which when I test continuity it’s grounded . The other two, one is low coilwith 3.2v and the other is high coil with battery voltage 13v or such. I assume the fan has a high and low but how does one trigger the high side of the fan. I understand regular relays but this has me trumped.

Thanks ,
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Hey people, I’ve had no luck finding anything for my year of quad. 2019 1000xp

my fan use to work properly then it broke so I got it replaced. Anywho my fan when first warmed up will turn on at 92c down to 86c then every time it gets higher then it’ll kick on at 94 then 96 and eventually as I’m riding it only kicks on at 106 down to 99 then backat 106. I just pulled the rad and cleaned it spotless and new fluid.
Tested the cb for resistance and it’s .1 ohm, not really a perfect path but damn close. My engine temps read on dash. Not quite sure why it doesn’t keep up or stay on too cool too it’s set point. Should it not be on if it’s over 100c forsure? I get off and check the fan and it isn’t spinning and when it does spin it drops it 6-8 degrees then off again
When is it suppose to kick on and off?

also curious if anyone figured out how to wire a manual switch. I looked over the circuit, but I don’t fully understand how the ecu is triggering the 4 pin rela. I found the constant hot and the output to fan which when I test continuity it’s grounded . The other two, one is low coilwith 3.2v and the other is high coil with battery voltage 13v or such. I assume the fan has a high and low but how does one trigger the high side of the fan. I understand regular relays but this has me trumped.

Thanks ,
I have a 2018 Sportsman XP1000 put my fan on a relay and switch.
It’s wired straight to the battery and OEM relay is working fine. I can just flip the switch anytime and most of the time just leave it on after it gets warmed up.
Have a diy schematic how you managed that? Mainly how you kept the oem relay in the mix or did you just use the output line of the oem relay to your relay
Have a diy schematic how you managed that? Mainly how you kept the oem relay in the mix or did you just use the output line of the oem relay to your relay
The fan ground - is to the frame then the hot + wire goes to the same OEM plug and my 4 pin relay goes to straight to the battery hot + to 2 of the pins 1 powers the relay 1 goes to threw the relay to power and fan at another pin and the last pin goes to the switch that is grounded.
You only have to put hot + wire to the hot + wire of the fan and leave the OEM set alone.
Have a diy schematic how you managed that? Mainly how you kept the oem relay in the mix or did you just use the output line of the oem relay to your relay
I also tell you about my Kodiak 700 EPS on it I put a about $40 fan controller the that you can set the temperature that the fan comes on at .
It has it's own relay and temperature probe that you put against the radiator . And also has a wire that goes to a switch that you can turn it on anytime.
Same thing to hook it up is put power out to the power wire of the fan.
The fan ground - is to the frame then the hot + wire goes to the same OEM plug and my 4 pin relay goes to straight to the battery hot + to 2 of the pins 1 powers the relay 1 goes to threw the relay to power and fan at another pin and the last pin goes to the switch that is grounded.
You only have to put hot + wire to the hot + wire of the fan and leave the OEM set alone.
Hey thanks again sorry been gone camping. After reading this I’m not sure why I didn’t think of this but too double check, your just using the switch to ground the new fan relay too turn on, is this how the oem controls work, it just grounds the fan too turn it on?

thanks again much appreciated!
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Hey thanks again sorry been gone camping. After reading this I’m not sure why I didn’t think of this but too double check, your just using the switch to ground the new fan relay too turn on, is this how the oem controls work, it just grounds the fan too turn it on?

thanks again much appreciated!
Yes the OEM relay setup works the same the main switch puts power to all the relays then the ECM ground the relay to turn on the fan.
I use the ground because it was easier and safer than running a hot wire back to a switch then to the relay and if the wire does gound out some where the fan will turn on instead sparking and shorting out.
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