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Difference between revisions of "On Board Diagnostics"
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The CAN bus is functionally equivalent to Ethernet network for PCs and Macs, although the protocols and physical infrastructure are radically different. Basically it allows communication between sensors and 'intelligent' components on the bus (equivalent to a computer network). | The CAN bus is functionally equivalent to Ethernet network for PCs and Macs, although the protocols and physical infrastructure are radically different. Basically it allows communication between sensors and 'intelligent' components on the bus (equivalent to a computer network). | ||
== Physical Components == | == Physical Components (as it relates to how most people will use it) == | ||
'Connector' (on the vehicle); OBD-II connectors are pink in color and located underneath the dashboard on the driver side foot well of the vehicle, closest to the door. This is a requirement of the OBD-II standard. It is a female connector. | |||
'Interface'; This is either a cable a cable integrated with a scanning device. Cables designed for use with computers have a male version of the OBD-II connector on one end and usually a USB connector on the other with older versions having a 9 pin serial connector. There are also more modern versions that are wireless and use blue tooth. | |||
'Scanner'; This can be a self contained physical unit or software on a PC, Mac, or Smart Phone. | |||