Hello Everybody.

I'm having troubles with the original Mercedes DAS system. Everytime I try to initiate the diagnostic it says "Fault in PC - Diagnostic Multiplexer link!" Voltage Supply - Cable

I checked all COM configuration, accordingly to the manual, but comes to a point that shows the message above again.

Would you have any information that could help me on this?

Thanks,

 

this kind of message happens when the diagnostic cable (OBD side) is not plugged in to the car.

i never heard of caesar having problem before.

have you tried reinstalling DAS?

best way is to find another working Star Diagnosis and use the cable/multiplexer.

look the pins on the OBD plug of the cable. they often are "pushed in" and cannot fit well on the receptacle. you can pull it up in place.