June 1, 201015 yr The wires are cut and spliced by The PO. Anyhoo the fan runs with the key on. Is the rad switch grounding or switching 12v . I was thinking of grounding to the chassis to one blade of the rad switch then to the ground wire of the fan with 12 volts to the power wire. Any other suggestions.
June 2, 201015 yr IIRC, the fan grounds to a thermo switch. That is the preferred setup of most of us. makes a temp sensor failure nonexistent. All of the Subarus i have owned were set up like that. It doesn't affect anything performance wise in the car.
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