Now you can’t take a day without using any vehicle. That’s why many people own a car. Just like that, you also have a car in your garage. The safety issue is the first concern for all car owners. An onboard diagnostic or OBD2 scanner came with every car to keep this in mind. This scanner shows you some code that has its meaning. As a car owner, I think you must know about the code and solve the problem as soon as possible. Just like that, the U0422 is a trouble code. The  U-series of the issues related to user communication malfunction. And yes, this code shows that your car’s body control module can get invalid data while you are driving. And this is a severe issue. Let’s talk about the details and how to solve this article’s problem.

What is the meaning of the U0422 trouble code?

The trouble code U0422 is a communication problem of the control module. This diagnostic trouble code happens when one control module can not communicate with another vehicle’s control module. So there is a problem associated with the Controller Area Network or CAN bus information loss problem with the Body Control Module or BCM. To secure the total operation of a car’s onboard electronics, which handle and control many electrical attachments connected to your car body. It manages the central locking system, electrical window, immobilizer system, etc.

What are the Symptoms?

Some common symptoms of this trouble code are given below:

What is the reason behind the trouble code U0422?

There are also some causes you may know behind the trouble code U0422. Those are:

How to identify the trouble code U0422?

There are some steps any technician can take to solve the issue. Like:

Some mistakes happen when diagnosis the Trouble code U0422:

A car owner and a technician can often forget some steps to follow. That leads them to misdiagnose the trouble code. Like:

How to solve the trouble code U0422?

If you follow, there are some easy steps, you can fix the issue of U0422. The steps are:body control module repair

Final discussion:

In the end, the problem is related to the body control module. That’s why this is not a significant issue. You face some symptoms like illuminated engine light or facing issues while starting the car etc., and you face some uncomfortable situations while driving with this problem if it needs to change the body’s control module to solve this issue. A professional needs about one hour to fix this issue: and the budget is also not so high, like 75$ to 100$.

Kevin Nicholas is an automotive technician who is a genius at software and hardware-related issues. He manually tested more than a hundred OBD scanners and gave his honest opinion on whether the device was worth the money or not. His in-depth OBD review articles help people choose the right product, whether it is a European, American, or Asian vehicle. He completed his Automotive Specialized Training Course at Universal Technical Institute and has more than 15 years of experience in the field.

Summary of Contents

One Response

  1. my car is mazda cx7 2011 model
    the car goes off each time first drive in the morning after 20-30minutes drive the engine loss power then gos off it will not start after next 30mint

Leave a Reply

Your email address will not be published. Required fields are marked *