A HVAC Electronic Control Module Replacement cost in Garden Grove in 2024

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AVERAGE COST IN Garden Grove

A HVAC Electronic Control Module Replacement costs by shop in Garden Grove.

CarAdvise Customers save an average of $0 on A HVAC Electronic Control Module Replacement.

POPULAR VEHICLES

Average cost of A HVAC Electronic Control Module Replacement for popular vehicle models in Garden Grove:

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THE IMPORTANCE OF A HVAC Electronic Control Module Replacement

What is an HVAC electronic control module and how does it work?

An HVAC electronic control module is one of many computers inside your vehicle. It controls and regulates the heating, ventilation, and air conditioning (HVAC) system, much in the way a thermostat controls the temperature in your home. But this electronic control module is a bit more complex. Not only does it set the temperature for as many as four zones in your vehicle, it also controls the amount of air flow and the direction the air flows through the vents. The HVAC electronic control module even controls other components, such as the air conditioning compressor and thermal expansion valve.

The control module receives input from a host of sources, including the user control panel, temperature sensors inside and outside your vehicle, and more. Data from these sources help the control module to automatically control the HVAC system.

COMMON SYMPTOMS

How do I know if my vehicle needs the HVAC electronic control module replaced?

The HVAC electronic control module directs all of the operations related to the climate control inside your vehicle. Because it touches many different components, from the blend door that alters the temperature inside the cabin to the thermal expansion valve that regulates pressure in the AC system, any signs of a bad control module might instead point to some other failed component. For this reason, it is essential that a qualified technician perform an accurate diagnosis before replacing the control module.

Although they could point to other problems as a source, signs that the HVAC electronic control module is failing include:

The heater is not functioning properly or the vents are blowing cool air

The temperature in the cabin fluctuates without input from the user controls

The air conditioning system does not engage or does not blow cold air

The AC light blinks on the dashboard display and a diagnostic scan reveals a trouble code for the AC system

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FREQUENCY OF INSPECTION

How does a technician perform A HVAC Electronic Control Module Replacement ?

The procedure to replace an HVAC electronic control module will vary depending on the year, make, and model of your vehicle. The control module is usually located inside the dashboard, behind or integrated into the back of the climate control center. General steps a technician will take to replace the control module include:

  • Disconnect the negative terminal of the battery, taking steps to preserve the memory of the other computers
  • Remove or set back any dashboard components or other parts that obstruct access to the control module, such as the control center faceplate, center console cover, lower dash panel, or even the steering column
  • Detach the control module from the dashboard and unplug the wiring connectors
  • Remove the old module and install the new one
  • Reinstall all other components removed for access
  • Program the new HVAC electronic control module using a dealer-level scan tool

Other Questions Customers Ask

Where is the climate control module located?
The climate control module (another name for the HVAC control module) is often located behind or under the dashboard. It may be on the driver's or passenger's side, depending on the vehicle make and model. Sometimes the control module is integrated into the user control center, and other times it is a standalone unit that might be mounted elsewhere, including underneath the center console.
Does the BCM control HVAC?
Depending on the vehicle manufacturer, the BCM (or “Body Control Module”) that is responsible for many of the functions of your vehicle might also control the HVAC system. Many vehicles, however, have a separate HVAC control module that is independent of the BCM.
What controls the AC vents in a car?
The HVAC vents in a vehicle are typically controlled by electronic actuators that open and close in response to directions from an electronic control module. When selections are made on the climate control center, the control module sends a signal to the actuators to move the doors so that air flows from the correct vents.

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