Cabin heat not working

2013 TRD sport. Heat no longer working correctly. Fan only blows when it’s at max speed. If it’s less than max fan speed, it doesn’t blow at all. When the fan does kick on at full speed, the air is hot.

any ideas? Blower motor?

 

Blower motor resistor or burnt wiring at connector

 

Most commonly a failed blower resistor but easy enough to check, if it is melted there is an updated part and harness.

https://www.tacomaworld.com/threads/2nd-gen-information-diagnostics.784008/#post-28042158

 

It’s funny you mention burnt wiring, when I parked my truck earlier today I smelled something burning (very faint burning smell). When I took the truck out tonight, no heat. That’s gotta be it.