How to solve ECM Connection Error 5204 of Cummins Insite

Here you go… How to Cummins INSITE Software Connection Error 5204 5202 5201 5200

with DPA5 adapter, i try to connect with Cummins insite and i 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 datalink adapter and the ECM could not be established.

Please check the following conditions:
The key switch is on
The cables are between the datalink 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 adapter.
Error 5201: Indicates communication loss between the datalink adapter and the ECM.
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.

Star C3 cannot work on recent W205 solution

User puzzles:

I have installed Xentry 3.2021 in Star C3 multiplexer. It works well so far. Now, I need to make diagnosis on w205 year 12/2014 but It can not communicate with the car. C3 don’t work in all recent cars in xentry but in DAS is ok.

Experienced users’ suggestion:

C3 has many limitation regarding latest vehicles in Xentry.
It can’t diagnose it e.g w205, w212, w222, w906, smart 453 etc.

its glory is already passed unless you deal only with vehicles in DAS.
you have to change to SD Connect C4.
C4’s support also officially has been stop since 12-2015.

It is no different even you change folder.
it is different protocol with recent vehicles.

For your w205 (nice car) you can use one of this :
1.sd connect c4
2.xentry sd connect c5

Both good at all new models,W222, W221, W212, W203, 211,W 204,W207, W212, GL166, B 246, CLS 218, SLK172 and Smart405, 451, 452, 454

Besides the Star diagnosis software c3 and c4 own, sdconnect c4/c5 added three more software: SD Media, Xentry and Smart TAN Code.
SD Media: Video and PDF lessons;
Xentry: New software released by Company after 04/2009 by diagnosis new cars. Xentry software for diagnosing W 204,W207 and W212 which C3 and C4 does not support;
Smart TAN Code: Opened special function in DAS program with Smart cars 405/ 451/452/ 454.Besides, it also opened more special functions, such as engineer mode, remove limitations,etc, which Star C3 and Star C4 do not have.

I have successfully communicated wit my w205 AMG using a SD C4 connect all controllers accessed.