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joeyoravec · 07-28-2006, 02:48 PM

Quote: Originally Posted by star-art

Obviously, getting the data from the OBDII connection should be the easiest route. But how can you "plug into" this full time while still making the connector available to run diagnostics? In other words, how can you "tap" the data full time and still be able to plug in or use another tool for diagnosis? Since there is only one connection, is some sort of "pass through" adapter available?

OBD-II is a network and multiple nodes are allowed. DrewTech sells a 2-way splitter. You could accomplish the same thing yourself with several hours of soldering. You'd still need to ensure that your scantools aren't trying to use the same tester address, but most networks have 8 reserved addresses available. As long as you program things correctly it's possible to connect multiple tools simultaneously.

07-28-2006, 02:48 PM	#12
joeyoravec Constant Bitrate Join Date: Oct 2005 Location: Livonia, MI Posts: 149	Quote: Originally Posted by star-art Obviously, getting the data from the OBDII connection should be the easiest route. But how can you "plug into" this full time while still making the connector available to run diagnostics? In other words, how can you "tap" the data full time and still be able to plug in or use another tool for diagnosis? Since there is only one connection, is some sort of "pass through" adapter available? OBD-II is a network and multiple nodes are allowed. DrewTech sells a 2-way splitter. You could accomplish the same thing yourself with several hours of soldering. You'd still need to ensure that your scantools aren't trying to use the same tester address, but most networks have 8 reserved addresses available. As long as you program things correctly it's possible to connect multiple tools simultaneously.