19 JunSD Connect Device not in use & DAS Fault (1.2)-2.503.9901 Solution

These are Mercedes MB Star diagnosis DAS and MB SD Connect C4 communication solutions by obd2tool technicians: DAS Fault (1.2)-2.503.9901 with the error “Communication failed” MB SD connect c4 main unit displays “Device not in use” This issue usually can be solved as follows: – re-set IP address: 1) Connect MB SD Connect C4 with LAN cable […]

Read More ...