Step 1: Backup Original Nissan ECU EEPROM & FLASH Data
Connect X431 ECU programmer to a PC via USB cable
Input 2374 in the search box to quickly find Nissan engine computer model
Double-click the ECU desired to enter the main operation page
Click “Direct connection of diagram” to check the wiring diagram
Follow it to connect Launch X431 ECU Programmer and original Nissan engine computer
After connected, click “Read EEPROM data” and “Read FLASH data” to read the original data separately, and save the data after reading.
Click “Disconnect” to disconnect the ECU connection
Step 2: Backup New Nissan ECU EEPROM & FLASH Data
Connect X-431 ECU & TCU Programmer to a new Nissan engine computer
Repeat the same steps as step 1 to connect ECU, read and save new EEPROM and Flash data in sequence
Step 3: Write EEPROM and FLASH data
Select the EEPROM and Flash data of the original Nissan engine computer and write them into the new one respectively.
Disconnect after data writing is completed.