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U0415

Invalid Data Received from Anti-Lock Brake System (ABS) Control Module

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By
KBB Service Advisor
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Reviewed by
Gary Hardesty

What Is the U0415 Code?

Symptoms
Causes
Seriousness
Can I Still Drive?
Diagnose
Difficulty of Inspecting
Get Additional Help

The definition of code U0415 is “Invalid Data Received From Anti-Lock Brake System (ABS) Control Module.” This means that one or more modules on the CAN bus, usually the powertrain control module (PCM) or engine control module (ECM), have detected that your vehicle’s ABS module is sending invalid data. As a generic code, the U0415 code can appear in almost any OBD-II vehicle with an anti-lock brake system.

More About Error Code U0415

Your anti-lock brake system control module controls many of the safety-related braking processes in your vehicle. It keeps the wheels from locking up, stops the tires from slipping when the vehicle brakes, and helps you control your vehicle. The data from the ABS module is key in preventing braking problems, so other modules within the CAN bus monitor it to ensure it sends out the proper information. This code indicates that other control modules have received implausible data from the ABS control module.

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What Are the Symptoms of a U0415 Code?

General problems with the ABS module will be the most common symptom of the U0415 code, as in most vehicles, the PCM will deactivate the ABS system until the fault is fixed. You may see that you’re experiencing more slippage and braking problems or that your vehicle is less stable when you brake. This is especially true when braking in more difficult situations, such as when the road is icy or wet. You’ll also see the check engine light and sometimes other warning lights illuminate.

What Are Some Causes of a U0415 Code?

The most common issue associated with the U0415 code is simply circuit problems, including damaged wiring or poor electronic connections. A problem with the ABS control module itself is also possible. It may be that the module is defective, or you’re just experiencing a programming issue. Sometimes, issues with the sensors that input data to the ABS module can also cause the U0415 code, as it will cause the ABS module to send out data that doesn’t make sense.

How Serious Is the U0415 Code?

The U0415 code is quite serious. Your vehicle’s ABS system is incredibly important. While it’s most important when the weather is poor, such as wet or icy road conditions, you also want the ABS control module active even when the weather is good. Because the vehicle will usually disable the anti-lock brake system control module when this code is active, fixing the code is the primary way to get your ABS system back.

Can I Still Drive with a U0415 Code?

Most of the time, you’ll be able to drive with the U0415 code, but it’s much less safe to drive with this code active. Again, the ABS system helps with issues associated with wheels locking up when braking, and that means your vehicle has no way of tackling these problems if they do come up when you’re driving. Avoid driving with the U0415 fault code active, as it will be more dangerous if you do.

How Easy Is It to Diagnose a U0415 Code?

Diagnosis for a U0415 code can be more difficult than it seems at first. This code is extremely generic. It doesn’t indicate where the invalid data is coming from, what it is, or where the PCM caught the invalid data in the system. That means you’ll have to check a lot of sensors and wiring to see whether there’s a problem in any of them. Components like the ABS pump assembly, ABS pump motor, wheel speed sensors, valve body, and more could all be faulty, and you need to check them out. In general, assume that the U0415 code is very difficult to diagnose. You should talk to a certified mechanic if you’re not confident in your ability.

How Difficult Is It to Inspect a U0415 Code?

The inspection process for the U0415 code is also quite difficult. You’ll need to inspect quite a lot of wiring and sensors if you want to determine what the underlying problem is. You may need a code scanner and access to reliable vehicle information, like technical service bulletins, vehicle guides, repair manuals, and more. Inspecting this code isn’t easy, so you should talk to a professional mechanic to fix the problem. They’ll be able to answer questions, discover the problem, and perform a complete repair.

Need Additional Help with Your U0415 Code?

Because of how extensive this code can be, how dangerous it is just to leave it, and its overall complexity, it’s common for people to seek help with the U0415 diagnostic trouble code.

If you’re looking for assistance, you should find an auto repair shop in your area. Especially since this code isn’t very safe to drive with, getting help at a local automobile repair shop will make it much easier to access a fix.

Additional codes can also be extremely helpful in getting to the bottom of this problem. Check out the OBD-II database at KBB.com for more insight and information about any other codes you see in your vehicle.

U0415 Q&A

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