2006 Silverado Blower Motor Resistor Wiring Diagram

The blower motor resistor is an important component of your 2006 Silverado’s heating and cooling system. It regulates the electrical current that flows to the blower motor, controlling its fan speed. If your blower motor is not working properly or only operates at high speed, there may be an issue with the resistor or its wiring. In this article, we will provide a wiring diagram for the 2006 Silverado blower motor resistor and answer some frequently asked questions about this component.

Wiring Diagram

Before we dive into the wiring diagram, let’s review some basics about wiring diagrams. A wiring diagram is a visual representation of the electrical connections and components in a circuit. It shows how power is distributed throughout the system, which components are connected to each other, and how they are grounded.

To read a wiring diagram, you need to understand the symbols and colors used to represent the various components and connections. Here are some of the most common symbols and colors you will see in a wiring diagram:

Symbol Component
Relay SymbolSource: bing.com
Relay
Resistor SymbolSource: bing.com
Resistor
Ground SymbolSource: bing.com
Ground
Wire Color LegendSource: bing.com
Wire color legend

Now that we know the basics, let’s take a look at the wiring diagram for the 2006 Silverado blower motor resistor:

2006 Silverado Blower Motor Resistor Wiring DiagramSource: bing.com

Wiring Diagram Breakdown

The 2006 Silverado blower motor resistor wiring diagram is relatively simple, with only a few connections to understand. Here is a breakdown of each connection:

  1. Connector C1, Pin A: This connection is a 12-volt supply that comes from the HVAC fuse in the underhood fuse block. It provides power to the blower motor resistor module and blower motor relay.
  2. Connector C1, Pin B: This connection is a ground that is shared with other components in the HVAC system.
  3. Connector C3, Pin A: This connection is a ground that is shared with other components in the HVAC system.
  4. Connector C3, Pin B: This connection is the output signal from the blower motor resistor module. It controls the speed of the blower motor by regulating the current flow.
  5. Connector C3, Pin C: This connection is the input signal to the blower motor resistor module. It receives a signal from the HVAC control module that tells it what fan speed to set.
  6. Connector C3, Pin D: This connection is a ground that is shared with other components in the HVAC system.
  7. Connector C3, Pin E: This connection is the output signal from the blower motor relay. It supplies power to the blower motor.
  8. Connector C3, Pin F: This connection is the input signal to the blower motor relay. It receives a signal from the blower motor resistor module that tells it when to activate.

Frequently Asked Questions

What is a blower motor resistor?

A blower motor resistor is an electrical component that regulates the current flow to the blower motor in your vehicle’s heating and cooling system. It controls the speed of the blower fan by adjusting the resistance in the circuit. Without a functioning resistor, your blower motor may only operate at high speed or not at all.

How do I know if my blower motor resistor is bad?

If your blower motor only works on high speed, it is likely that the resistor is failing. Other symptoms of a bad blower motor resistor include the blower fan not working at all or working intermittently, unusual noises coming from the blower motor, or a burning smell coming from the vents when the blower is running.

Can I replace the blower motor resistor myself?

Yes, it is possible to replace the blower motor resistor yourself if you have some basic automotive knowledge and the right tools. However, it can be a difficult and time-consuming task, depending on the location of the resistor in your vehicle. It is always best to consult your vehicle’s service manual or take it to a professional mechanic if you are unsure about the process.

How much does it cost to replace a blower motor resistor?

The cost to replace a blower motor resistor can vary depending on the make and model of your vehicle and the location of the resistor. On average, the cost can range from $50 to $200 for parts and labor. However, if you take your vehicle to a dealership or a mechanic, you may end up paying more for the service.

What causes a blower motor resistor to fail?

The most common cause of blower motor resistor failure is overheating. When the blower motor is running at high speed, it creates a lot of heat, which can damage the resistor over time. Other factors that can contribute to resistor failure include moisture, corrosion, and electrical issues such as short circuits or excessive current flow.

Conclusion

Understanding the wiring diagram for your 2006 Silverado blower motor resistor can help you diagnose and repair issues with your vehicle’s heating and cooling system. If you are experiencing problems with your blower motor, don’t hesitate to consult your vehicle’s service manual or take it to a professional mechanic for assistance. By keeping your blower motor resistor in good working order, you can ensure that your vehicle’s heating and cooling system will keep you comfortable in all types of weather.