2020年8月19日星期三

Autel IM608 read BMW MSD80 ISN and Edit CAS to accept the Used DME

 

Purpose:

BMW used engine replacement – Reading the ISN from a BMW Siemens MSD80 ECU then writing the info into the CAS module.
On some you can change the ISN in the ECU but these just change it in the CAS and once running update VIN in ECU diagnostically.

 

Device used:

Autel MaxiIM IM608

XP400 programmer

G-BOX

APB106 cable

 

 

Main steps:

Step 1: Read ISN code from MSD80

Step 2: editing the CAS to accept the used DME after replacement

 

Procedure:

 

Step 1: Read MSD80 ISN code 

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Remove MSD80 DME from vehicle

Follow IM608 wiring diagram to connect DME (check detail connection later)

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In Autel IM608, select BMW->System Selection-> Engine->Direct->Bench->E Chassis->SIEMENS/Continental->TC1796 MSD80

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Operation steps:
Remove the engine ECU module from the vehicle
Connect the engine ECU interface to the DB15 hardness according to the engine ECU interface punctuation in the wiring diagram
Connect the DB15 hardness to the G-BOX, then connect the P terminal of the G-BOX to the diagnostic device.
Connect the 12V DC terminal of the G-Box to the 12V adapter
After completing the function, restore the engine ECU module to its original state.

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Read ISN

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Enable network connection

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Connecting to internet to obtain data

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Backup data before read ISN

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Read engine ISN successfully. Save this page.

 

Step 2: Edit CAS to accept the new engine

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Connect CAS3 module with Autel XP400 programmer

Go back to BMW function interface, select ECU Renew->Immobilizer Control Unit->CAS3/CAS3+ Renew->1L15Y/0M23S->ECU operation

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Read EEPROM

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Read eeprom successfully. Save eeprom

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Read Flash

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Reading FLASH data completed.
Select Renew Function

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Follow steps below to renew ECU

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1. Read the EEPROM of the new CAS module, and then select the corresponding EEPROM file for parameter calculation
2.Select the initial frequency of the vehicle, enter the initial EGS ISN code, VIN and engine code of the vehicle, modify the loaded data
3.Write the newly saved data into the new CAS module and then install the new ECU module to the vehicle
4. After the module is installed on the vehicle, if the vehicle cannot be started, or the ELV icon is displayed on the instrument, please synchronize the ELV or DME according to the  situation
5.Clear codes in the vehicle with specialized equipment
Note: The original key of the vehicle has expired and it is necessary to learn the new key to start the vehicle.

Press OK to load EEPROM data saved above

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IM608 requires to enter following information

Select vehicle frequency of the original car
Enter the original car’s EGS ISN coding (8-bit)
Enter the original car’s VIN code (17-bit)
Enter the original cars’s DME ISN code (32-bit)

and submit

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Then save the new renew CAS data to bin format.

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Write the newly saved EEPROM file back to CAS

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Select the newly saved EEPROM file and write data

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Wait until write eeprom data completed.

Clear codes in the vehicle.

Reinstall CAS and ECU into original state.

Done.

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