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SAE J1587: Difference between revisions

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*[http://www.sae.org SAE International Website]
*[http://www.sae.org SAE International Website]


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Revision as of 20:38, 11 August 2009

J1587 is an automotive diagnostic protocol standard developed by the Society of Automotive Engineers (SAE) for heavy-duty and most medium-duty vehicles built after 1985. The J1587 protocol uses different diagnostic connectors. Up to 1995, individual OEMs used their own connectors. From 1996 to 2001, the 6-pin Deutsch was standard. Beginning in 2001, most OEMs converted to the 9-pin Deutsch. Some OEMs still use the 6-pin Deutsch.


The pinout for the 9-pin connector is:

PIN SIGNAL
A Ground 
B Unswitched +12 VOLTS 
F J1708Datalink (+)
G J1708Datalink (-)


The pinout for the 6-pin connector is:

Pin Signal
A J1708Datalink (+) 
B J1708Datalink (-) 
C Unswitched +12 VOLTS
E Ground


J1708 makes up the datalink and physical layer that supports J1587.

External links