A blend door actuator is a part of your vehicle’s heating and cooling system. It helps to regulate the temperature inside the car by directing air from either the heater core or the evaporator core. When your blend door actuator fails, it can cause major issues with keeping your cabin at a comfortable temperature. Fortunately, there is an easy way to bypass a failing blend door actuator and get your vehicle’s air conditioning working again quickly. In this article, we will discuss how to bypass a blend door actuator on most vehicles in five simple steps.
What Is a Blend Door Actuator?
A blend door actuator is an electric device that controls the flow of air through your vehicle’s heating and cooling system. It typically consists of two small motors connected to either side of the blower motor resistor block, which helps regulate the amount of air coming into the cabin from outside. The motors are then connected to either side of the blend door – the part that regulates how much outside air comes in – using cables or rods.
Common Issues with Blend Door Actuators
One common issue with blend door actuators is when they fail due to wear or age. This can cause the blend door to malfunction or become stuck, which can lead to a variety of issues with your vehicle’s air conditioning or heating system. Other issues include broken or worn cables and rods, as well as faulty electrical connections. Additionally, if you’re facing issues with your car’s doors, learning how to fix car door latch is essential. Also read our guide for tips on this topic.
How Do You Bypass a Blend Door Actuator
If you’re having trouble with your blend door actuator, you may be able to bypass it to get your vehicle’s air conditioning and heating working again. Here are the steps you need to take:
-
Step 1: Disconnect the Battery
The first step is to disconnect the battery from your vehicle. This will ensure that there is no power running through the system while you work on it. -
Step 2: Remove the Instrument Panel Covering the Blower Motor Resistor Block
Once you have disconnected the battery, you need to access the blower motor resistor block. To do this, remove any covers or panels that are covering it. Make sure that all screws are removed before attempting to remove any covers or panels as this could damage components within your HVAC system if done improperly! -
Step 3: Unplug the Connector from the Blower Motor Resistor Block
Once you have gained access to the blower motor resistor block, you need to unplug the connector. This will ensure that no power is being sent to the blend door actuator while you work on it. -
Step 4: Install a Jumper Wire Between Terminals 1 and 2 on the Blower Motor Resistor Block
Once you have unplugged the connector, you can install a jumper wire between terminals 1 and 2 on the blower motor resistor block. This will bypass your blend door actuator, allowing air to flow freely through your HVAC system once again. -
Step 5: Reassemble Everything and Test Your Work
Once you have installed the jumper wire, be sure to reassemble all your vehicle’s components in reverse order of disassembly. This will help ensure that everything is put back together correctly and that there are no loose connections or wires in your HVAC system. After reassembling everything, be sure to test your work by turning on your vehicle’s air conditioning or heating system.
Conclusion
Bypassing a blend door actuator can be a quick and easy fix for those having trouble with their vehicle’s heating or cooling system. With just five simple steps, you can bypass the failing blend door actuator and get your car’s air conditioning or heating working again in no time. Be sure to always disconnect the battery before attempting any work on your HVAC system, as this can help protect you from any electrical issues.
Add Comment