![]() ![]() Meaning whether your car speaks VPW, CAN 11bit or CAN 29bit, the ELM327 will be able to communicate over all these protocols. So, an ELM327 is a diagnostic cable that can communicate over ALL of these protocols (languages). Each of these languages “sound” different although the exact same information can be sent through if “spoken” correctly. think of it like being able to speak English, Chinese, Japanese. OBD2 isnt just one “language”, it has multiple different protocols. It is used to communicate to all the modules in the car and allow scantools such as the tech2 to request specific information such as faults and even allow clearing them!. So, OBD2 is the protocol (language) that pretty much all newer cars communicate over. So here is another crash course in OBD2, cars supported, available software and some raw communication breakdown to define the difference between protocols! it can be hard to find which ones are reliable! ![]() ![]() And there are so many OBD2 cables out there. Now, theres actually HEAPS of information out there about OBD2 diagnostics, although it can all become a bit confusing since OBD2 isnt just one “language”, theres actually a few different protocols that cars talk over. Recently I just posted up a thread about ALDL diagnostics, for those interested check it out here: Everything to know about aldl diagnostic cables ![]()
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