EGR Valve
Secondary Air Pump
Thermostat Housing
Oil Cooler
Fuel Pressure Regulator
Blower Resistor
Heater Valve
Ignition Coil
Air Flow Sensor
Headlight Leveling Sensor
Lambda Sensor
Temperature Sensor
ABS sensor
Brake Light Switch
Oil Pressure Switch
Throttle Body
Auxiliary Water Pump

Blower Resistor

What They Do
Blower Resistor, typically to generate voltage in proportion to electrical current. These resistors allow the blower motor to function at lower.

Failure Symptoms
If the blower motor resistor fails, the blower motor only functions at its highest speed and can not decelerate.