the heater box is located on the passenger side of the car under the hood. To access the blower motor it may benecessary to cut the outline of the blower motor from the housing, there is a "cut here to service" printed on the outline. also you have to remove the control module and the radiator reservoir for working room. I recommend leaving the wires to the control module hooked up. allow one good hour if using hand tools
in the fuse box
The heater resistor on a 94 Astro is located on the top of the heater box under the hood, it has a four or five wire plug on it and two 6mm screws hold it in a hole in the heater blower box.
Usually behind the glove box area
behind glove box
The 1994 Toyota pickup heater relay location can be found in the fuse block number 3. The fuse block is located above the glove box and can be seen when the glove box is removed.
The heater valve is located inside the heater box.
The heater box is under the dash.
In the middle of the heater box under the dashIn the middle of the heater box under the dash
The dash has to be removed to gain access to the heater box. The heater box then comes out and is split open to replace the core.
above the a/c and heater housing, behind the glove box , right side dash
There is none - usually it is the module in the top of the heater / blower box (resistor module) that is the problem.
The TCCM (Transfer Case Control Module) fuse on a 1999 Bravada is located in the engine compartment fuse box. The TCCM is located in the dash on the driver's side to the left of the steering wheel.