How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

How to: change replace the BMW CAS3 N20 Engine Computer using CGDI Prog BMW key programmer.

 

When is required:

A secondhand/used N20 ecu was to used to replace the original N20 engine computer.

 

Procedure:

Read engine ECU data with CG100 Prog

Note: Only CG-100 full-featured can do this.

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Click to enter “ECU”

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Click on the engine model option to enter the current vehicle

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According to the software physical wiring diagram wiring

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Engine module wiring

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Click ‘Read EEPROM’

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Read successfully and save the data

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Show ISN and VIN

 

Connect CGDI BMW with vehicle via OBD socket through main cable

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Select BMW ISN

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Click “Read CAS ISN”

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CAS ISN read successfully

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Input ISN which read through CG100

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Write successfully, replace engine computer was completed.

 

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