jbkelly3 Posted December 20, 2015 Share Posted December 20, 2015 I have a Toyota Sienna, 2002 year model, and I cannot make the cooling fan turn on. Each relay has been swapped (4 prong units with headlight relay; 5 prong with new) and the fan motor removed and test good with a straight wire. Next logical item would be coolant temp sensor since radiator and thermostat were both replaced in June. Any ideas here?? Quote Link to comment Share on other sites More sharing options...
Toyotammy Posted December 22, 2015 Share Posted December 22, 2015 Inspect the connectors at the fan motor, relay, sensor or heat sensitive switch, and the ECM (your car’s computer control system). There might be broken wires or loose connectors around the fan circuit. Also check for a possible blown fan fuse. Quote Link to comment Share on other sites More sharing options...
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