So I’ve been fiddling with my new to me 08 DS450X. Got a great deal on it locally in SoCal so I was stoked. Upon riding it I found that the check Engine Lamp came on and wouldn’t go off.

I dug further and found that my fan is not kicking on. I jumped the relay and the fan kicks on. Which tells me my circuit is good but then the light wouldn’t shut off.
So I unplugged the temp sensor and plugged it back on to find the light went away …… however after letting it idle up to temp again the same...

08 DS450X Check Engine Lamp