Dash light dilemma with radiator fan. Plz Help - Yamaha Rhino Forum - Rhino Forums.net
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post #1 of 7 (permalink) Unread 07-11-2019, 10:18 PM Thread Starter
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Dash light dilemma with radiator fan. Plz Help

I have a 2006 Yamaha rhino 660. The dash lights and everything function perfectly running.
If the fan is on and I kill the ignition, all the dash lights fade down, the drive indicator lights all light up, and then finally go off. Also I have a light that is hooked to my switched power that is connected to the cigarette lighter. It also fades down so it isnít just in the dash.
It only does it when the fan is running. If the fan is not running it cut everything off as normal. Also if the fan is running and I unplug it at the fan, it will then also turn everything off normal.
It is only messing up when the fan is literally turning.
Any ideas?


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post #2 of 7 (permalink) Unread 07-12-2019, 04:40 AM
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The fan is acting like a generator when you turn the key off when it is running, so it is providing power back to the vehicle until the blades stop

Seems like the stock harness has a diode in it to prevent that and yours might be missing.

It is nothing to concerned about

Todd
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post #3 of 7 (permalink) Unread 07-18-2019, 08:27 AM Thread Starter
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Could I add a one-way diode to stop the reverse flow of current? And if so which would be best for this application?


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post #4 of 7 (permalink) Unread 07-18-2019, 08:28 AM Thread Starter
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Dash light dilemma with radiator fan. Plz Help

It has just started this problem. It did not used to do that.
It changed after I did the ground modification where I grounded the engine to the frame. Also I added an auxiliary battery with a smart isolator by black rhino. None of those things that I cut into any harnesses other than the one ground wire from the negative post to grouded it to the frame.
The only other thing that was done was the plug and play Yamaha rear LED taillights with reverse light kit


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Last edited by stickman6; 07-18-2019 at 08:42 AM.
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post #5 of 7 (permalink) Unread 07-18-2019, 03:16 PM Thread Starter
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Also, something else I noticed was the fan does not run on when the key is turned off. It shuts off with the Engine when the key is turned off.
Should it run on until the temperature is cool or should it go off with the key?


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post #6 of 7 (permalink) Unread 07-21-2019, 08:54 PM Thread Starter
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Ttt


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post #7 of 7 (permalink) Unread 07-22-2019, 07:14 PM
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fan shuts off with the key. I think if you step on the brake you shouldn't see and lights when turning off.
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