Yanhua Mini ACDP BMW can use ICP mode to read and write CAS ISN to replace MSV80, MSD80, MSD81, MSD85, MSD87, and MSV90 DME on bench. It’s simple and efficient to use the special interface board instead of the traditional wiring mode, no need to open the shell of DME or program the DME.
Here takes BMW MSV80 DME replacement as an example.
What is needed?
Donor DME
Original CAS3 ECU
Original car key
Yanhua Mini ACDP Module 1
How to do?
Step 1: Read the donor DME ISN that needs to be replaced
Step 2: Read the original CAS data
Step 3: Modify CAS data via working key
Step 4: Write the modified CAS data
How long does it take?
About 3 minutes
Video guide:
Step1: Read the donor DME ISN that needs to be replaced
*It’s not the original DME.
Connect the MSV80 interface board in Yanhua ACDP Module 27 to DME, and connect the OBP+ICP adapter
Short circuit the CAN resistor of OBP+ICP adapter to “CAN-R-JOIN” end
Connect it to the ACDP host and power on
Run Mini ACDP APP
Confirm the ACDP device is connected at the upper right
Select BMW >> DME ISN >> BENCH Mode Read/Write DME ISN >> SIEMENS/Continental DME >> Exx >> N51 (MSV80) >> Read ISN
Confirm the connection between ACDP and DME is normal
Check the chip information read out
Long press the ISN to copy it for using later
Reading ISN data finished
Step 2: Read the original CAS data
Install CAS3 Interface Board:
Find the location of the interface board positioning hole
Install BMW_CAS3 interface board
Connect OBP+ICP adapter to the BDM01 adapter
Connect BMW_CAS3 interface board
Back to BMW function menu
Select CAS1~4>> CAS3/CAS3+>> ICP Mode>> Read/Write CAS ISN (Replace DME)>> MC9S12XDP512 (Mask 0L15Y/0M23S) >> Read CAS EEPROM
Confirm ACDP is connected to the device normally
Detect Pin successfully
Read chip and save the EEPROM data
Read data succeeded.
Step 3: Modify CAS data via working key
Unplug the OBP+ICP
Connect the BAV KEY adapter to the ACDP host
Insert the working key into the BAV KEY adapter
Select Modify ISN >> Replace 32-bit ISN DME>> Select the EERPOM data file just saved
Confirm the connection between Yanhua ACDP and BAV adapter is normal, and the working key is inserted
Take a screenshot to save the key info read out
Select Modify >> Click ISN code and clear it >> Paste or enter the donor DME ISN read out in step 1 >> Modify
Modify data finish
Save the modified EEPROM data
Step 4: Write the modified CAS data
Unplug the BAV-KEY adapter, and connect the OBP+ICP
Go back to the main menu, select “Write CAS EEPROM”
Confirm the connection among ACDP, BDM adapter, and CAS ECU are normal
Pin detection result is good
Select EEPROM data>> select the modified EEPROM file
Decoding the memory
Write data succeeded
Alright! The BMW MSV80 DME is replaced by Mini ACDP BMW with Module 1 and Module 27 successfully.
