there are resistors in the blower motor itself
Chevrolet Tahoe rear blower relay switch can be found behind the dashboard. The relay switch will be behind the drivers side dashboard.
If there is current going through the wire to the blower switch, try bypassing the switch with a jumper wire. If the blower motor works, then replace the switch. If the blower motor does not come on, then you probably need to replace the blower motor.
The 1989 Honda Accord blower motor relay switch can be found on the firewall in the engine compartment. The blower motor relay switch will be on the passenger side of the firewall.
The 1995 Ford Explorer blower motor relay switch can be found in the fuse box. The blower motor relay switch will be in the third column, second from the top.
Check to see if you are getting power and ground to the blower motor - if so blower motor is bad. If no power possibly fan switch or selector switch Also check the blower motor resistor, found in heater plenum.
tested blower,ok. then tested incoming voltage to blower and found to be zero. the final step was to replace the blower switch. To replace that switch, the middle part of the dashboard, including the radio had to be removed. The ac and heater come in one piece. It worked fine then. I think, there is a chance that the switch could be just cleaned up and it would work, again I think.
You didn't mention what year S10 Blazer you have but, the blower motor speed resistor can be found under the hood, on the passenger side of the firewall, close to the blower motor.
The 1973 VW Beetle low beam switch can be found on the drivers side floorboard. The low beam switch will be all the way to the left of the drivers side floor.
The backup light switch and the brake switch are all in the same relay switch. The backup light switch can be found beneath the drivers side dashboard.
Not knowing what year S10 you have, you can generally find the blower motor high speed relay nearby the blower motor on the firewall. The resister for the other lower speeds is also found close by the blower motor.
The brake light switch can be found below the dashboard on the drivers side of the passenger compartment. The brake light switch simply plugs in and out.
Blown fuse, defective blower motor resistor pack, blower motor, or blower motor switch. This happened to me and I found a connector at the fan motor had fried. I changed the connector and it worked great.
The 1995 Pontiac Grand Am starter relay switch can be found on the firewall in the engine compartment. The starter relay switch will be on the drivers side of the firewall.
The inertia switch, on your 1995 Toyota Tacoma pickup truck, can be found on the firewall in the engine compartment. The switch will be located on the drivers side of the firewall.
The 1998 VW Jetta drivers side power window relay switch can be found inside of the drivers side door. You will need to remove the drivers side door panel in order to access the power window relay switch.
The high speed relay for the blower motor would be found under the hood, on the passenger side of the firewall, close to the blower motor speed resistor.
The brake relay switch can be found on the firewall in the engine compartment. The brake relay switch will be on the drivers side of the firewall.
I found that there is a normal and lock switch on drivers door and lock stops use of the windows.
The 1989 Acura Legend radiator fan switch can be found on the inside of the quarter panel. You can find the switch on the drivers side quarter panel.
The cooling fan relay switch can be found on the inside front quarter panel. The relay switch will be on the drivers side quarter panel.
The brake pedal electrical switch can be found below the dashboard in the passenger compartment. The switch will be on the drivers side of the dashboard.
The 1994 Ford Ranger pickup truck turn signal switch can be found below the dashboard. The switch will be on the drivers side. The turn signal switch should be labeled as such.
The blanker relay switch can be found beneath the dashboard on the drivers side. The relay switch is round and can be easily unplugged and replaced.
The 1998 Chevrolet Cavalier brake relay switch can be found below the dashboard, on the drivers side of the passenger compartment. The brake switch simply plugs in and out.
You will need to change the brake light switch. The brake light switch can be found below the dashboard on the drivers side.