The OBD-II Diagnostic Connector The OBD-II specification provides for a standarized
hardware interfacethe female 16-pin (2Χ8) J1962 connector. Unlike the OBD-I
connector, which was sometimes found under the hood of the vehicle, the OBD-II
connector is always located on the drivers side of the passenger compartment
near the center console. SAE J1962 defines the pinout of the connector as: 1- 2 Bus positive Line of SAE-J1850 3- 4 Chassis ground 5 Signal ground 6 CAN high (ISO 15765-4 and SAE-J2234) 7 K line of ISO 9141-2 and ISO 14230-4 8- 9- 10 Bus negative Line of SAE-J1850 11- 12- 13- 14 CAN low (ISO 15765-4 and SAE-J2234) 15 L line of ISO 9141-2 and ISO 14230-4 16 Battery voltage The assignment of unspecified pins is left to the vehicle manufacturers discretion What is the difference between OBDii, OBD-II, OBD ii and OBD2? Answer: None, It seems that different corporations used different terminology. The items like connectors, cables or scan tools have no standard of writing except of the OBDii connector should be called J1962. If you look at some search results on MSN, Google, Yahoo or ASK, the most popular one is OBDii. Personally, I like more the OBD2 term. For OBDii Connectors, OBDii Cables OR Scan Tools Go to www.carplugs.com http://www.carplugs.com/SiteMap.htmlArticle Source: http://EzineArticles.com/?expert=Mario_Iacobaccio |
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OBDii Connectors By Mario Iacobaccio |