How Long Does an AC Control Module Last?

Over the past decade, vehicles have become far more electronic than they are mechanical, with numerous computers on board that control various functions. Your AC control module is one such computer, and it works to manage the air conditioning and heating system in your car. Depending on the type of car you own, and the features that it offers, this could include automatic climate control – your car actually senses the temperature inside and outside the vehicle, and adjusts the interior climate for optimum comfort. With this sort of system, you set the temperature that makes you most comfortable, and the AC control module delivers it. If the module malfunctions, you will not enjoy your chosen temperature.

Usually, your AC control module will operate problem-free, and should last you the life of your car. However, like all electronic modules, the AC control module may very occasionally malfunction, or possibly require a software update.

Signs that your AC control module needs to be replaced, or possibly analyzed to determine if a software update is in order, include:

  • Temperature does not remain steady
  • No cool air

If either of these symptoms occur, you should have the AC control module checked to determine if there are any trouble codes, and then repair or replace it accordingly. A mechanic can determine whether the module can be repaired. If necessary, we can replace the AC control module.


The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Related articles

How to Replace an AC Fan Control Module
The AC fan control module turns on the AC condenser and the radiator in some cars. The procedure to replace this module varies by make and model.
How to Replace an AC Line
AC hoses are failing if the air conditioning system is not blowing cold air or the air is leaking out of the AC lines.
How to Troubleshoot a Surge Caused by Car Air Conditioning
Car air conditioning can cause a surge in the car engine if belt have slipped, the throttle body is faulty, or the idle control valve needs replacing.

Related questions

How do I use the air conditioner?
When it’s hot outside, you want to be cool and comfortable in your Accord. The air conditioner is designed to do just that. Using it is easy – just follow these steps: Turn on the air conditioner by pressing either...
Air conditioning clutch is not engaging unless I bypass the relay.
It does sound like an issue with the pressure switch (https://www.yourmechanic.com/services/ac-pressure-switch-replacement). When the switch fails, the compressor will not come on. Bypassing it turns on the compressor, which changes the pressure and allows the system to work. I would also...
Rattling noise when the AC comes on
Hey there. There are some obvious possibilities: the fan or blower noise due to motor defect; the A/C clutch is chattering or slipping, and/or the clutch bearing is worn, loose, or wobbly; the compressor (https://www.yourmechanic.com/services/ac-compressor-replacement) has an internal mechanical fault...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com