Where is front heat AC fuse located on a Toyota 4Runner?

There isn't a single "front heat AC fuse" in a Toyota 4Runner. The heating and air conditioning system is controlled by multiple components, each potentially protected by its own fuse or circuit breaker. The problem might also lie in a relay, the blower motor resistor, or even the HVAC control unit itself, rather than a blown fuse.

To find the relevant fuses, you need to consult your owner's manual. It will have a fuse box diagram showing the location of the fuse box(es) (usually under the hood and sometimes in the cabin) and which fuses are responsible for the AC blower motor, compressor clutch, and other related components.

General Advice:

* Check both fuse boxes: Toyota 4Runners often have one fuse box under the hood and another inside the cabin (usually near the driver's side).

* Look for fuses related to the blower motor, AC compressor, or HVAC system: The exact names might vary, but these are the key terms to search for in your owner's manual.

* Use a test light or multimeter: Don't just rely on visually inspecting fuses; use a test light or multimeter to confirm if they're blown.

Without knowing the year and model of your 4Runner, I cannot give you a more precise location. Your owner's manual is the definitive resource for this information.