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ELECTRIC COOLING FAN COMPONENT TESTING. Motor Disconnect electric cooling fan motor at junction. Using 2 jumper wires, ground one lead and apply battery voltage to other. Fan should rotate. If fan does not rotate, replace motor. Radiator Fan Switch Using an ohmmeter, check switch continuity in hot water. Switch should be open at less than 180 F (82 C) and continuity should exist at more than 185 F (85 C). Replace radiator fan switch if it does not test as specified. Electric Cooling Fan Relay (Diamante, 3000GT) 1) Remove radiator fan motor relay from relay box located at right side of engine compartment. Check for continuity between terminals with battery power applied to terminal No. 2 and terminal No. 4 grounded. See Fig. 2. 2) With power on, there should be continuity between terminals No. 1 and No. 3. With power disconnected, there should be no continuity between terminals No. 1 and 3, and there should be continuity between terminals No. 2 and 4. Replace relay if it does not test as specified. Testing Electric Cooling Fan Relay Diamante, 3000GT Courtesy of Mitsubishi Motor Sales of America. coolant temperature over 185 F (85 C), radiator and condenser fans run on high. See Fig. 2. Eclipse, Galant, Precis, & 3000GT With ignition on and engine coolant temperature greater than 185 F (85 C), thermo sensor completes path to ground, closing radiator fan motor relay contacts and providing current to radiator fan. See Figs. 1 or 2. WIRING DIAGRAMS, Wire Color Code, Radiator Cooling Fan Wiring Diagram (Diamante).
Tags : radiator fan motor, radiator cooling fan, mitsubishi motor sales, electric cooling fan, condenser fans, electric cooling fans, engine coolant temperature, mitsubishi mirage, thermo sensor, jumper wires, water switch, fan switch, 3000gt, battery voltage, wiring diagrams
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