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WTF?
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148 Posts
Discussion Starter #1
My '16 Road Glide Ultra had the water pump and thermostat changed in August 2018. Again this year in August 2019 I had the thermostat replaced after a coolant leak was discovered on a ride. I've had the bike back a week and I got the dreaded engine check and temp lights. I had rode about 45 minutes and stopped for about 15 minutes. Got back on the bike and the lights came on after less than 5 minutes. I shut the bike off for a few minutes. Started it up again, the lights remained on. After about 5 minutes the lights went out. The fans were never on.

Any ideas why the lights would come on then turn off? I'm at wits end with this bike.
 

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149 Posts
You will need to scan the ECM. It will probably steer you in the right direction. Using a scanner I would check how hot the ECM thinks the engine is.
 
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