2009 GTS 250 fan not working
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Hooked
1980 P200E - GT 200 L - 2005PX150
Joined: 25 Mar 2014
Posts: 383
Location: Florida
Tue Apr 06, 2021 7:38 am quote
My radiator fan is not turning on.
Gauges goes very high, blinks. Fan does not come on.
Thanks
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39463
Location: Pleasant Hill, CA
Tue Apr 06, 2021 8:44 am quote
There are two sensors in the same unit. One feeds the gauge, the other feeds the ECU which in turn feeds the fan. So, are you actually overheating, or has a wire come loose or been chafed? One way to test if you're electrically inclined is to check is to swap over the two feeds - now does the fan come on but the gauge remain 'OK'?

Otherwise it could be the relay at fault.

If the fan itself was seized (not that uncommon) it would tend to blow the 7.5A fuse and that would remove power from the 'injection loads relay', which would stop the bike dead. This might have happened before and the fuse has been changed for a much bigger one, so the bike still runs but the fan remains stalled.
Hooked
1980 P200E - GT 200 L - 2005PX150
Joined: 25 Mar 2014
Posts: 383
Location: Florida
Tue Apr 06, 2021 9:21 am quote
The 7.5 fuse is Ok
Do I need to remove the glove box area to test/see the other components?
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39463
Location: Pleasant Hill, CA
Tue Apr 06, 2021 11:13 am quote
More checks first: Do your headlights come on? If so the power for the fan is OK - its other main fuse is fuse 7, a 15A, inside the glovebox which also does the headlights. You can check if the fan works by removing its relay (under the horncast) and connecting between the '30' and '87' contacts with a paperclip or somesuch.

If the fan works, and the relay tests OK, then suspect the wiring from the sensor.

If you need to access the fan you will have to move the whole 'glovebox' panel. If it's seized you'll find it hard or impossible to turn the fan by hand. I've replaced several on my scoots over the years, but I've also had dodgy wiring causing gauge problems.

relay.jpg

Hooked
1980 P200E - GT 200 L - 2005PX150
Joined: 25 Mar 2014
Posts: 383
Location: Florida
Wed Apr 07, 2021 12:45 pm quote
Which one ?
Thanks

8B71DE38-11FD-4262-8851-8DF8CC3B46F1.jpeg

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39463
Location: Pleasant Hill, CA
Wed Apr 07, 2021 1:10 pm quote
Look at the colours of the wires, and compare to the circuit diagram. The position can vary, depending on who fitted them, and who has worked on the bike before.
Hooked
1980 P200E - GT 200 L - 2005PX150
Joined: 25 Mar 2014
Posts: 383
Location: Florida
Wed Apr 07, 2021 2:54 pm quote
Yep, was the relay. The fan comes on at the 1/2 mark at idle. A bit noisy; is it normal?
Thanks for the help
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 39463
Location: Pleasant Hill, CA
Wed Apr 07, 2021 3:47 pm quote
colosseo wrote:
Yep, was the relay. The fan comes on at the 1/2 mark at idle. A bit noisy; is it normal?
Thanks for the help
Yes, they are noisy! They tend to come on when idling in traffic.
Hooked
1980 P200E - GT 200 L - 2005PX150
Joined: 25 Mar 2014
Posts: 383
Location: Florida
Wed Apr 07, 2021 4:49 pm quote
Thank you
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