#W211 e500 obd2 reader how to
#W211 e500 obd2 reader software

The most common type of system is known as CAN (Controller Area Network). Modern vehicles typically use a few different types of communication systems depending on how important the message is. Many controllers gather data that may be useful to other controllers, and as all this information needs to be shared and shared at lightning speed, the controllers are all connected.Д¬ontrollers are connected via multiplexers which facilitate communication and the sharing of information.

The PCM may use this information to cut power to the engine when the vehicle is skidding. As the BCM already gathers speed data, it shares it with the PCM.Д«ut the BCM may also share information about ABS activation. The PCM (Powertrain controller вЂ“ manages engine and transmission) uses basic data like vehicle speed in order to perform timely fueling or gear change decisions. They are part of a network of information.

#W211 e500 obd2 reader software

The information is processed by the EBM, and action is taken according to its software parameters.ДЄlthough the EBM controller is dedicated to managing and executing functions on your brake system, the information it gathers is often useful to other controllers that are dedicated to managing other systems.Д¬ontrollers, therefore, share information. Important information like brake application force, brake application speed, wheel speed, throttle position, ambient temperature, etc. Your vehicleвЂ™s dedicated brake system controller, commonly called an EBM (Electronic brake module), gathers data from various sensors on your car. This is a sophisticated system that only a computer can manage. All modern vehicles, for example, will have an ABS brake system. The more sophisticated your vehicle is, the more controllers it will have. IвЂ™m not going deep into the weeds here, I realize you simply want your OBD to connect, but a little background info is useful for later when weвЂ™ll be running some tests.ДЄs said, vehicles employ lots of controllers. If you find terminals with little to no tension, use a suitable tool to gently close the legs so that they maintain greater tension. Do not place objects like a multimeter probe into the terminals. We have very precise tools for this job, but you can still nail this test by improvising a fine paper clip or such. WeвЂ™re using our ability to feel the difference in tension from one terminal to another. WeвЂ™ll place a fine metal tool between the pins and feel the resistance when we remove it. They are the communication terminals your scan tool uses to access the vehicleвЂ™s CAN network. Pay particular attention to terminals 6 and 14. Note: not every DLC slot will contain a terminal. Well, front probe the pins and compare tension.ДЄ visual test comes first. This causes resistance and often is the root cause of scan tool communication issues.ДЇor this test, weвЂ™ll do what I said was rarely a good idea. Wear and tear and front probing cause the terminal legs to lose tension. Your vehicleвЂ™s DLC terminals are known as female terminals. A visual test may reveal the issue, but more likely, youвЂ™ll need to perform a pin drag test.

#W211 e500 obd2 reader how to

How to check the scan tool plug?Д¬hecking your vehicleвЂ™s socket is a little more work but not much.

This type of repeated activity will eventually cause scan tool pin wear or damage and spreading of the vehicleвЂ™s female OBD socket terminals.

Reaching into a vehicle, blindly fitting or pulling the scanner cable is a normal everyday occurrence. In a long-winded way, IвЂ™m saying your vehicleвЂ™s OBD connector, also known as the DLC (Datalink connector), may be damaged from possibly years of OBD scanning and, dare I say it, вЂњFront probing.вЂќ ThatвЂ™s not to say we disrespect kit or customersвЂ™ vehicles, but working on a workshop floor is all about speed. IвЂ™m a mechanic, and while weвЂ™re known for our MacGyver-type skills, we may not be generally prized for our finesse. So whatвЂ™s the problem with the OBD plug/socket? Number one, it only takes a few moments, and number two, while not being the most common cause of a scan tool that wonвЂ™t communicate, it is by far one of the easiest fixes. This may seem like a simplistic answer, and you are correct, but itвЂ™s worth exploring for two reasons.

A blown a fuse is often the cause of a scan tool that simply wonвЂ™t power up. If, however, your scan tool wonвЂ™t even power up when you hook it up, then check out this post вЂњOBD scanner wonвЂ™t turn onвЂќ it covers the simple fix in detail. When writing this post, IвЂ™ve assumed your scan tool powers up when you plug it into your vehicleвЂ™s OBD port, but it just wonвЂ™t connect. YouвЂ™ll learn how to diagnose why your OBD tool wonвЂ™t connect and how to fix it. In this post, youвЂ™ll learn about each of the common reasons an OBD scan tool wonвЂ™t connect to a vehicle.