Heater

My blower is working on my tacoma and temperature gauge is also. Antifreeze is good and changed the 40 amp fuse but still the heat is room temperature as long as I have the switch set to air flow inside. Not sure what to do now?

 

following.

 

Welcome to TW.

Things to check:
1) Coolant level. You say coolant is "good" but is it full? - Low fluid level will lead to inconsistent heat output from the heater core.
2) Thermostat. Does your truck reach full operating temp? If the T-stat is stuck open, your truck will not reach operating temp and while it will get warmer the heat will just be luke warm.
3) Clogged heater core. Not an easy way to check this one, but if coolant changes have not been maintained, it is possible to get buildup in the core that may impede coolant flow, causing it to not get very warm.