The high-speed fan relay in under the hood on the firewall left of center. If I remember correctly, there are 3 relays on the 1996. The relay closest to the passenger side is the high-speed relay. I had to replace it twice in my 1996 blazer You will propbably find that the plastic is melted slightly
replace the switch.
The 1997 Chevrolet blazer actuator switch is located on the firewall in the engine compartment. The switch is on the passenger side of the engine compartment.
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 1991 Chevrolet S 10 Blazer wiper switch diagram can be found in most repair manuals. The diagram can also be obtained from most Chevrolet dealerships.
The 1995 Chevrolet Blazer ABS relay switch is located on the firewall in the engine compartment. The relay switch will be on the passenger side of the firewall.
Blower motor NG. Blower motor resister NG. Blower motor fuse NG. Blower motor switch NG.
The 1998 Chevrolet blazer fuel pump relay switch can be found on the frame of the vehicle. The switch will be next to the fuel tank.
Chevrolet Tahoe rear blower relay switch can be found behind the dashboard. The relay switch will be behind the drivers side dashboard.
You either have a blown fuse, defective blower motor, defective blower motor switch, or a defective blower motor resistor pack.
The fuel cutoff switch, on your 1998 Chevrolet Blazer, can be found on top of the fuel injector pump. The fuel injector pump is on the back side of the engine near the top.
The fuse. The blower motor speed resistor. The blower motor relay. The blower motor switch. Check for power at the blower motor connection.
There isn't one. The headlight switch has a circuit breaker built into it.