When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The CAN bus is a twisted pair of wires that’s wired throughout the entire car. It goes into most modules, it’s not 1 thing U can point to. Most modules have CAN communication. If you are talking about the OBD port, that’s a connector that lets you connect to the CAN bus, and that’s a plug that is about 1 foot below the steering column, roughly between your knees (on a corvette) on most cars the OBD connector is by your left knee where the hood release is.
The CAN bus is a twisted pair of wires that’s wired throughout the entire car. It goes into most modules, it’s not 1 thing U can point to. Most modules have CAN communication. If you are talking about the OBD port, that’s a connector that lets you connect to the CAN bus, and that’s a plug that is about 1 foot below the steering column, roughly between your knees (on a corvette) on most cars the OBD connector is by your left knee where the hood release is.
Since the person who asked this question didn't thank you for the right answer, I will.
Two parts to the system, with the high speed land bus shown here, and run on the two wire pair.
Also, you have the class two data, which is run from the major modules, to lower class modules,
Then farther down the line, from modules to senors as well,
As for major control over the high speed lan system, its the BCM, since it sets the vins lan security code/hand shake in the first place, if the modules will talk to each other with the correct hand shake in the first place. Hence just swapping out a module may not work, since it may need to be vin flashed so it does hand shake with the correct vin security code to start with.
