02-18-2021, 02:00 PM
My Cummins has a standard J1939 9 pin diagnostic port, I did a little research on the Series 60 and 8V92. The DDEC II uses a J1708 the III-IV uses a J1939. DDEC III became available in 1992, not sure when Newell adopted it.
The original standard is recognized by two designators: J1708 – the physical layer (i.e., or wiring), and J1587 – the message layer or data format. ... With J1939, data rates were now up to 250 Kbits/second and more control modules were supported in the network.
The original standard is recognized by two designators: J1708 – the physical layer (i.e., or wiring), and J1587 – the message layer or data format. ... With J1939, data rates were now up to 250 Kbits/second and more control modules were supported in the network.
Jon & Chris Everton
1986 40' Dog House #86
450 hp ISM 5 spd ZF Ecomat 2
2004 Range Rover L322 Toad