2017 fc450 wiring issue

weland28
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53
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2/22/2017
Location
Eagle Grove, IA US
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2568th
Was wondering if anybody had a wiring diagram or shop manual information to help me out.

Currently my map switch stays lit when bike is off I’ve been trying to chase wires and checking connectors but I’m not sure what they all are. I’m trying to avoid cutting open my whole harness just to keep it looking clean. So far I know that my map switch is good since I swapped it with my 250 and still have same issue, my ecu is unplugged and it still stays lit so I don’t believe it to be that. There is a relay in the air box that I can unplug and the map switch goes off so obviously it has voltage there when it’s not supposed to but I have no idea what this relay is for or where it even goes or comes from
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weland28
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53
Joined
2/22/2017
Location
Eagle Grove, IA US
Fantasy
2568th
4/13/2019 1:39pm
I know the relay contacts aren’t just stuck because I’ve swapped it out with my 250s also
PaulR450
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5/2/2024
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Sydney, NSW AU
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5/2/2024 8:16pm

 I have the same issue on a 250 2017. Have swapped Voltage Reg, ECU, cleaned all the plugs I can find and still the Map Switch stays on. 

1
YZed250
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11/9/2014
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Costa Mesa, CA US
5/3/2024 10:54am
PaulR450 wrote:
 I have the same issue on a 250 2017. Have swapped Voltage Reg, ECU, cleaned all the plugs I can find and still the Map Switch...

 I have the same issue on a 250 2017. Have swapped Voltage Reg, ECU, cleaned all the plugs I can find and still the Map Switch stays on. 

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