I did not know the orientation of the TJA1050 so I used a multimeter and the data sheet of the chip to determine the correct orientation on the board via voltage and ground. I had used the AT-200 to replace other ECUs without issue and very easily ( MSV80 license is required), however, the MSV80 instructions involves soldering chips on to the board and the instructions are just a small resolution image. While it’s possible all these present faults could be true, it would still be unlikely so I decided to replace the DME. I had three codes on a customers’ vehicle that came in 2011 BMW 328Cic:ĢE7C BSD (Bit-Serial Data Interface) data bus communications faultĢF71 Digital Motor Electronics (DME): electronics box fan, activationĢB3D Diagnostic Module Tank Leakage (DMTL), system fault I’d like to share my experience with the AT-200 ECU Programmer and MSV80 unlock upgrade.
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