CGDI MB Read Benz Tcu failed, beeps and appears “read data failed” message. What’s the problem and how to solve it?
Solution:
Please remove the TCU from the Benz car, and connect to a CGDI EGS & FCU Testing Cable (see the figure below) to work with CGDI Prog MB on bench. If still cannot read data, please add a 120 ohm resistor between CAN-L and CAN-H cables.
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