How to Fix ECM Connection Error 5204 5202 for Cummins INLINE 7 Data Link Adapter ?

There have customer connect with Cummins INLINE 7 and he have error code 5204 or only no connection and not blinking the leds

This is the error 5204 popped up when connect Prostar 2005 with cummins engine: ECM connection
Error number: 5204


Communication between the data link adapter and the ECM could not be established.

Please check the following conditions:
The key switch is on
The cables are between the data link and the ECM are properly connected
The cables are in good condition
The correct adapteunication protocol is selected
r type is selected
The correct comm

Select retry, cancel or help for additional troubleshooting steps
Here is what have been tried but failed!
Try to connect whit J1939…..same issue

On truck does not even get the engine and the others only couple line and very slow, might be some thing with them trucks

some things odd2006 models connect through J1939 and works.
Tryed on 3 trucks already that are 2005 and older the connect thought J1708 it says engine 128
And when doing the J 1939 test on them it says something like data error

Check the driver is installed well
J1939 & J1708 are added to the software

Finally, SOLVED!
The solution is this, connect, then scan to diagnostic connector but not to USB, open the Cummins insite and push connect, when the Insite begin to connect, immediately connect the USB and ready….
The final tip- Error Messages for communication failures:
Error 5200: Indicates communication loss between computer and the datalink
Error 5201: Indicates communication loss between the datalink adapter and the
Error 5202: Indicates no communication could be established between the
datalink adapter and the computer.
Error 5204: Indicates no communication could be established between the
datalink adapter and the ECM.
If the “Auto Configure” and/or “Datalink Adapter Connection Test” do not find the adapter when connected, manually configure the Cummins Inline 6 Data link adapter connection.

More interesting for Heavy Duty Scanner , welcome to check

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