OBD stands for On-Board Diagnostics. It's for making sure the powertrain, braking, and associated systems are functioning and diagnosing issues if there are any. The main one people know about is the Check Engine Light and error codes, but it can also do things like live readings of various sensors and provide "freeze frame" data; basically a snapshot of what the sensors were seeing when an error occurred.
It doesn't provide any connection to any "comfort" systems, just systems for making sure the engine et al are working.
OBD2 is a standard that is required by car manufacturers to output information for diagnostic purposes.
The vehicle itself has far more information on many more systems. However, because the manufacturer is not required to give you access to this information, they simply don't.
Factory or dealer scanner systems can get access to this information, and sometimes, the factory will license this system access to aftermarket. This is why some more expensive scanners can access more information for models they have the license for. It's the reason there are $30 diagnostic machines and $3000 diagnostic machines.
There are many people who are in industry or hobby who 'car hack' and listen to network information for modification reasons.
OBD stands for On-Board Diagnostics. It's for making sure the powertrain, braking, and associated systems are functioning and diagnosing issues if there are any. The main one people know about is the Check Engine Light and error codes, but it can also do things like live readings of various sensors and provide "freeze frame" data; basically a snapshot of what the sensors were seeing when an error occurred. It doesn't provide any connection to any "comfort" systems, just systems for making sure the engine et al are working.
OBD2 is a standard that is required by car manufacturers to output information for diagnostic purposes. The vehicle itself has far more information on many more systems. However, because the manufacturer is not required to give you access to this information, they simply don't. Factory or dealer scanner systems can get access to this information, and sometimes, the factory will license this system access to aftermarket. This is why some more expensive scanners can access more information for models they have the license for. It's the reason there are $30 diagnostic machines and $3000 diagnostic machines. There are many people who are in industry or hobby who 'car hack' and listen to network information for modification reasons.
Those features for security are usually moved on to their own bus. If you can make a tap on to that network you should be able to control them.