2011 Kawasaki Brute Force 750 Overheating and Fi flashing light

[schwartz10]

2011 Brute Force 750 I. Having an overheating issue. When fan sensor is unplugged by thermostat fan will run and cycle. When its unplugged it will not run and cycle. Need help. Really dont want to take to dealership.

[Ajmboy]

So the coolant/temp sensor is unplugged your fan turns on? You have "unplugged" twice there, just trying to understand. Might be a bad sensor or relay.

 

[schwartz10]

When the sensor is unplugged the fan will cycle and run, when I plug the sensor back in the fan stops and will not run or cycle.

[Ajmboy]

I think that's normal because when you unplug the sensor it causes and open and the fan defaults to turns on. If its plugged in and not turning on, my bet would be a faulty sensor or fan breaker. 

[schwartz10]

Yes, but when that senor is unplugged it throws an Fi code on the dash and the fan will work but as soon as I plug it back in the fan stops which causes it to over heat both sensor and breaker have been replaced but it still not working. Relay is also functional.

[Ajmboy]

Could be the ECM, but hopefully not. There's some troubleshooting the dealer would do. You could refer to the manual and check the temp sensor resistance and output voltage. If you say all else is working, that may be the next step. Do you have the service manual? I just uploaded 2102-2014 which is the closest I could find:

 

 

 

[schwartz10]

Thank you, but now I'm thinking it's the ECM, going to the dealer tomorrow.

[Ajmboy]

5 hours ago, schwartz10 said:

Thank you, but now I'm thinking it's the ECM, going to the dealer tomorrow.

OK, good luck and let us know how you made out.

[MarkinAR]

Modern ATV's remind me of modern vehicles.  My wife's 2015 Mustang was having power loss at highway speed but would take off normal.  2 days of troubleshooting, no codes thrown, settled on it being a low pressure fuel pump and resigned to taking it to the dealer.  Noticed last night brake lights stayed on.  So I shimmed the brake light switch and fixed the power loss...guess it was triggering pseudo limp mode.

I bring that up to say....modern ATV's are too darn complicated and hard to troubleshoot.

 

[Ajmboy]

58 minutes ago, MarkinAR said:

modern ATV's are too darn complicated and hard to troubleshoot

Yes they are, you need a scan tool sometimes with test features.