Name: Mercedes Benz EIS Key Test Tool (W204 W207 W212)

Description:

Mercedes Benz EIS key Test Tool is special for Benz W204, W207, W212 models.

It was difficult to tell the new Mercedes-Benz BGA key and NEC EIS are working or not, and it caused much trouble for the repair work. 

Now we have developed a Mercedes Benz EIS key Test tool special for W204, W207, W212. The device can test whether the key and EIS is working or not without connecting with the direction lock ELV
 
Operation Instructions:
 
1. Connect the device as per following pictures, supply with 12V power adapter, LED2 indicator will flash and LED1 flash for 1 second.

Insert the key, LED1 will keep flashing with buzzer beep once, remove the key LED1 stops flashing and with buzzer beep once, means the key and EIS are in good condition.

(1 beep sound when test ACC, LED1 indicator keep flashing when test legitimate key)
 
2. If LED2 indicator flashes with no beep when insert the key and no beep when remove the key, means either key or EIS is not working.
 
3. Insert the new programmed key into EIS, the LED indicator on the key flashes; remove the key and insert back into EIS the key indicator goes off immediately with 1 beep, remove the key with 1 beep, means the key has been successfully programmed.

You may have to repeat insert-and-remove key for 5 times to identify the newly programmed key, it depends on your experience.