Under the dash, at the extreme right near the passenger kick panel.
Remove the glove box. The front blower motor and the resistor can be accessed from there.
There is really no method to "check" the resistor, text by substitution.
On the blower housing. Remove the glove box to gain access.
Held in by two small screws under dash.
On the bottom of the heater/AC housing under the dash.
To replace a blower motor on the resistor first you take off the nozzle and then you go into the motor through the nozzle and unlock it then repeat and oil and done.
You see that knob you turn to run the blower? That's it.
Under the dash on the right side.
A malfunctioning blower motor resistor will cause the blower motor not to work. When the resistor is bad the blower motors will not turn on.
In the ceiling housing for the rear A/C.
The a/c heater blower motor resister is located in the vehicle on the passengers side inside the housing next to the blower motor...............Remove the blower motor resistor wire harness connector.Remove the blower motor resistor screws.Remove the blower motor resistor.
A bad heater blower motor resistor would effect one or more blower speeds other than high.