·Product Introduction

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.

Note!
M821 Adapter needs to be used with advanced XTOOL Key Programming Devices eg: X100 Pad3/X100 Max and KC501 Key Programmer.

·Product Description

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.

·Connection Method

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.

Car Model Support

·Package List

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