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Home >> Honda >> 1994 >> Prelude VTEC >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> A/C-Heater System - Manual >> Testing >> Radiator Fan Control Module Input Test >> Preliminary Information
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Preliminary Information

Turn off A/C. Leave radiator fan control module connector attached. See ELECTRICAL COMPONENT LOCATIONS  under DESCRIPTION. See Figure. Turn ignition on. Measure voltage at all of the following terminals (except Blue/Red wire) of radiator fan control module connector (backprobe each terminal).