Repair guides and support for the 5th generation Honda Civic, first released in late 1991.

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Fan not working with new therm switch.

Fan will run with paperclip jump but will not run on new sensor, car over heats, fan does not kick in whats the deal ?

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David, since you know your fan works when you bridge the connection and already replaced the sensor, check the green wire of the Cooling Fan Motor Switch connector. If there is no power there you have either a bad Cooling Fan Motor Switch Relay, an open between the Cooling Fan Motor Switch, or a blown fuse. the attached diagram should help you to trace the connections. My money at this point is on the relay. Hope this helps, good luck.

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