As we all know that SDConnect compact 4 multiplexer not only support Mercedes-Benz Diagnostic function, but can also read faults from Benz SRS system. But some customers feedback that failed to access to the diagnostic OBD port. Below vipprogrammer.com sharing Solution of SDConnect multiplexer cannot access OBD port. SDconnect C4 cannot access OBD port Problem: According to customer’s feedback that he failed to access to the diagnostic OBD port when tried to read errors code from Benz SRS system. The system prompted an error message “check cable connection/turn ignition on”. Why choose SDconnect C4 cannot access OBD port problem: The error lies on mb SDconnect C4’s battery. Solution of SD Connect multiplexer MB SDconnect C4 cannot access OBD port: 1) Check and record MB SDConnect C4 multiplexer battery 2) Hook up a digital multimeter to set it to the direct current 3) Get two t-pins and plug them into the OBD socket at PIN 5 and PIN17 position 4) Put your positive lead to PIN16 ...
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