Quote:
Originally Posted by srdet811
i just installed my flex-a-lite dual fans with the DIF dual fan controller.
At first it was working fine but now when i shut off my car my fans wont shut off......
Need Help 
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The DIF unit keeps your fans on up to 2 mins after you shut off your engine. If it stays on for more than 2 mins, you might have a wiring issue on the engine harness side with the coolant sensor.
There should be no power (ie, 0V) on the sensor or on any wire of the engine harness with the key out.