FC200 ~ Read/Write Delphi ECU DCM3.5 (CRD2.2) by Boot Mode

Jul12

FC200 ~ Read/Write Delphi ECU DCM3.5 (CRD2.2) by Boot Mode

A 2012 Jeep Compass 2.2 diesel ECU with DCM 3.5. Actually it’s from Mercedes company 2.2 diesel, similar with CRD2. It’s 136 horsepower. It can’t be read via OBD or on bench, but it can be read/write with FC200 in boot mode.

FC200 Read Write Delphi ECU 1

Connect FC200 to a PC and run software
Select Mercedes>> DELPHI CRD2.X MPC556X>> Boot

FC200 Read Write Delphi ECU 2

Check the wiring diagram
Open ECU shell, and then connect FC200 to ECU according to the wiring diagram

FC200 Read Write Delphi ECU 3

Held the brown cable to GPT-0 point in boot mode

FC200 Read Write Delphi ECU 4

Start to perform the related operation
Connect ECU successfully

FC200 Read Write Delphi ECU 5

Read and back up the original PFlash and ExtEEPROM in sequence

FC200 Read Write Delphi ECU 6

FC200 Read Write Delphi ECU 7

After that, load file to write only the difference between the original and what I modified
Write data successfully

FC200 Read Write Delphi ECU 8

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