Mercedes-Benz diagnosis DAS comes with initialization fault (1.1)-1.501.9551. Here, mbstartool technicians offers some useful solutions to try.

Tool used with:

MB STAR C3/ SDconnect C4/ SD C5 CONNECT multiplexer (here is the case with SD C5)

MB Star Software D630 SSD

Models:

Mercedes-Bnez W208 ’2003

Error message:

Die Initialisierung des Multiplexers ist fehlgeschlagen (The initialization of the multiplexer failed)

BMP:

Fault (1.1)-1.501.9551

Initialization of diagnosis multiplexer failed

Possible cause:

The link between this diagnosis multiplexer and the diagnostic socket is interrupted

The link between the diagnosis multiplexer and the diagnostic unit is interrupted

The voltage supply at the diagnostic socket (circuit 30 and (or) circuit 31) is faulty

Note:

When using SDconnect, check the connection status using the Toolkit

Analysis from technician :

pay attention to the icon in the bottom right corner

When the computer starts, connect to the Device 21(SDconnect multiplexer)

The cross “x” there means bad communication or some other causes

Optional solutions for bad communication:

1- cable problem

1) the cable from the car to the mux

you may replace it if the mux is not light on
2) the cable from the laptop to the mux

Go to Local Network Connection

Plug and unplug the SD C5 com port for times to see if there is change in Local Network Connection or not.

If not, change another computer to try again, also in this way.

But, if still not any change in any computer, you may replace the LAN cable with another one to have a try.

2- mux problem

If you still have the same problem, it means that the mux is not ok
you may run star utilities you have 2 ways
1) if you hear the mux ticking means you have to check the car-mux cable
2) if you did not hear mux ticking means the laptop-mux cable is not ok OR the mux is not ok

But if unluckily with all solutions before, please send back your unit to the vendor for repairing.

http://blog.mbstartool.com/2016/03/19/how-to-solve-das-initialization-fault-1-1-1-501-9551/