4X4 not engaging on 2005 Ford Ranger

I recently switched on my 4X4 and it did not engage at indicator lights or hubs engaging. I have checked all the fuses I can find that relate to 4X4 modules. Is there a reset and where is it?

Asked by for the 2005 Ford Ranger
Often the switch wears out or the module goes kaput, or the solenoid can fail. I have seen and replaced them all. Best thing to do is to do some electrical tracing or have some one who can do it and test the components until you find the problem. I am not aware of a re-set button.
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i was told the switches are notorious for going out