How-to: add a new spare key to a 2007 Saab 9-3 using the Xhorse VVDI2 & VVDI Prog. The procedure also calculate the PIN.
Some users struggle to obtain the PIN for Saab’s and cannot program via OBD. The method here will overcome this problem.
1.Remove CIM unit
2. Read EEPROM data
3. File make key
4. Write back new dump
Carefully remove the CIM unit from this Saab 9-3
It needs time, be patient.
Then remove the case and locate eeprom chip
You can use a video microscope to identify the chip that needed reading. If found the chip and could’d see what number chip it was, spaying the chip with some brake cleaner.
did the trick and don’t worry, this is safe and won’t cause any damage.
Desolder the chip and soldered in to the EEPROM adapter included with xhorse VVDI Prog.
Connect VVDI2 and VVDI Prog to PC via USB
In VVDI Prog software, select EEPROM->Microchip-> 93C/LC/AA66A (8 PIN)
Read data success
Save data to PC
In VVDI2 software, select Immo Data Tool
Select Area, brand, car and type
Choose Load EEPROM dump and upload eeprom file saved by vvdiprog
Select Key position
Place new key in VVDI2
Press Make dealer key
Pick PCF7936(PCF7946) as transponder type
Prepare dealer key success. It can start engine after write back new dump file or learnt it to car.
Save new key dump file to PC
In VVDI Prog, open new key dump file
Write new data to chip
Then install CIM unit back to car.
Test new key.