Max Vent Speed on 2009 Tacoma not working

Hello,
I turned to the fan speed on to level 4 is which max speed, but it isn't blower any air.
Low, 2, and 3 vent speed is working fine. Is it something wrong with my blower? I don't believe is fuse related. Any suggestions?? thank you

 

Dirty contacts.

Somewhat common issue. Try a search for more specific DIYs on how to fix.

Type in blower motor fix or blower motor resistor.

 

Isn't blowing any air as in the fan motor stops or there is none coming from the vents?

 

its the switch... now it goes on and off on the max vent... I guess I can look for one on eBay or from dealer... is it plug and play?

 

Yes it should be plug and play. Although it could still be an issue with the resistor.

 

^^^ This, although I have my money on the connector to the resistor. On my '09 it was burned pretty good at the terminals at around 25k mi.