XTOOL M821 Adapter for Mercedes-Benz All Key Lost Need Work with Key Programmer KC501, Applicable on X100 Pad3 / X100 Max

XTOOL M821 Mercedes-Benz All Keys Lost Communication Adapter is used for finishing and optimizing all key lost programming for multiple Mercedes-Benz modules.

With M821 Adapter, you can save as much as 65% of the calculation time on the process, or save you from plugging the key emulator in and out for hundreds of times.

1. OBD-16 port: Used to connect to J1Z02_BENZ communication cable or connect to EIS/EZS modules via DuPont cables.
*Caution: Don't connect to the OBD port on the car directly.
2. Status Light: Shows the power status of the adapter. When the red lights are on, that indicates the power is on.
3. Comm Light: Shows the communication status of the adapter. When the blue lights are on, that indicates the adapter is communicating with the tablet.
4.DB15 port: Used to connect to the main cable of XTOOL tablets.
*Note: Before connected to M821 Adapter, please disconnect the OBD2-16 connector from the main cable.

1. Connect KC501 to the device via USB.
2. Connect Mercedes-Benz IR emulator onto KC501.
3. Disconnect the OBD2 connector from the main cable, then connect the device (or the VCI box) with the M821 Adapter using the main cable.
4. Connect 12V power supply onto the main cable.
5. Connect the EIS/EZS module with the M821 Adapter using the J1K02_BENZ cable. Please check the device for connection details.
*Note: Please check the pictures in the device when connecting M821 Adapter and EIS/EZS module via J1K02_BENZ cable.
*Note: The Mercedes-Benz IR emulator should be plugged into the slot of the module when operating.
*Note: For devices which comes up with a VCI box, connect the M821 Adapter with the VCI box using the main cable, and keep the VCI box connected with the device via Bluetooth. You can check the connection details for such devices in the device.

M821 Mercedes-Benz AKL Adapter
J1K02_BENZ Wiring Harness
M821 Quick Guide