Open the hood and it is on the left (passenger) side near the coolant reservoir.
If you are referring to the blower motor resistor, it is located behind the glove box and in the heater case.
to the left of the blower motor. It's on the left side of the engine compartment
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.
Under the hood, on the passenger side of firewall, near the blower motor.
Its should be behind the glove box.. held in by 1 screw
Yes, located in the blower motor resistor pack. Follow the wires backward from the blower motor to find it.
The blower resistor on a 1999 Chevy truck Z1500 is located behind the glove compartment. There is also a resistor on the firewall next to the blower motor itself.
The only relay in the heater system would be for the high speed function of the blower motor. That rely would be located under the hood, on the firewall, close to the blower motor resistor.
The heater blower for a 2002 Chevy Silverado is mounted under the dash. It is on the passenger side, in the heater housing.
Right next to the blower motor
probably the blower motor resistor
In a 1988 Chevy 2500, the blower motor resistor can be found on the passenger side. It usually is behind the glove box.