“Comfort” module – the comfort of the driver and passengers is above all! How to control it? What are its most common faults?
Content
What is a comfort module?
This is not a system or circuit, but a specific electronic device on the fuse panel or in the glove box under the driver's seat. Such a mounting location depends on the convergence of all bundles of electrical wires that supply signals to individual devices. The comfort module works with the information bus. Depending on the version, this can be a CAN, MOST, LIN or Bluetooth radio. Read and find out more!
Comfort module once
If you know the term "corbotronic", then you know what it means to have no additional boosters in the car. Previously, the comfort module was added only to top versions of cars and included power windows, mirrors and heated seats. However, most vehicles had to rely on the self-service of these elements, which had nothing to do with comfort. However, over time, the situation has changed depending on the development of technology and the needs of drivers. The controller has been installed on more vehicles and in versions that allow control of various devices.
Comfort module today
In cars produced today, the presence of a comfort module is a must, and its tasks are varied. Originally used by LIN LAN interconnect) had a data rate of 20 kbps. It was quite enough to adjust the position of the windows in the doors, change the position of the mirrors or control the central lock and alarm. Over time, the CAN option (eng. Controller network). Depending on the data bus, it can transmit up to 100 kbps. Thanks to this, it is possible to control multimedia or automatic air conditioning.
MOST highway
The most equipped modern vehicles currently use the MOST bus. Media Oriented System Transport). Its bandwidth reaches 124 kbps and is used in cars equipped with very sophisticated security systems.
What most often breaks in the comfort module?
It is not easy to clearly determine the cause of the failure of the comfort module. Depending on the device that failed, you may be looking for the source of the problem in the master node or a loss of bus power. Problems can also be caused by a data exchange system that is not directly related to the comfort module. This happens, for example, when multimedia systems fail. Malfunctions are very often associated with power outages, for example, a battery disconnected for a long time. Another reason is humidity. While not a common occurrence in the fuse panel inside a car, it is located under the driver's seat. You need to beware of bottles and containers of liquids, which many people instinctively hide under their seats. The cleanliness of the car is also important in terms of snow drifting into it in winter.
How to repair the comfort module?
The first step is to connect the diagnostic computer to the car. In this way, the error code can be clearly identified and the location of the malfunction can be located. Then you can use home remedies. It may be useful to repair the comfort module by turning off the "minus" on the battery for a few minutes. If this method did not bring the expected results, you can try a hard reset. The comfort module is then disconnected from the power supply and reconnected. Even if this does not help, the defective component must be replaced. Don't forget to match it with serial numbers and encode it.
As you can see, in this case pleasure is combined with duties. To ensure driving comfort for yourself and your loved ones… take care of the comfort module!
