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DemonDMAX
December 22nd, 2016, 05:52 AM
Connecting with Cummins Software.

J1939+ 21
J1931- 45
GND 49 & 50
+12V 25 & 26
IGN 5 (switched)

Connecting With V2

GND 49 & 50
+12V 25 & 26
IGN 5 (switched)

Please Fill in the blank for CAN H&L and additional information if you have.
GMPX
December 22nd, 2016, 09:18 AM
CAN + 22
CAN - 46

And like the J1939 port the 500K CAN bus requires a 120 Ohm load if you have the ECM on the bench.
WolffXIII
February 10th, 2017, 08:42 AM
:banana:
DemonDMAX
February 10th, 2017, 09:00 AM
any tips on unlocking the ecm via bench harness. Have no issue connecting with v2. when I connect with a bd to unlock ecm I get an error. ((connecting unlock cable to j1939(yes can and j1939 have 120 Ohm resis.))
DURAtotheMAX
September 25th, 2017, 05:18 AM
Which connector is this on? J1 blue? or J2 green?

Im guessing green, because pins 21/45 on the green connector had 120 ohms resistance across them, which would be terminated CAN ports.
GMPX
September 25th, 2017, 12:01 PM
Green (C2) is the connector that has all the necessary bench connections, C1 has the J1939 connections for the BD unlocker.