User's Manual

Diagnostics Operations Establishing Vehicle Communication

5. When paring is successfully done, the connection status displayed

to the right of the device name is shown as Paired.

6. Wait for a few minutes, and the VCI button on the system

Navigation bar at the bottom of the screen shall display a green tick

icon, indicating the display tablet is connected to the VCI device,

and is ready to perform vehicle diagnosis.

Refer to 10.1 Bluetooth Pairing on page 83 for additional information.

USB Cable Connection

The USB cable connection is a simple and quick way to establish

communication between the MaxiSys display tablet and the VCI device. After

properly connecting the USB cable from the tablet to the VCI device, the VCI

navigation button at the bottom bar of the screen shows a green tick icon in a

few seconds, and the USB LED on the VCI device illuminates solid green light,

indicating the connection between the devices is successful. The MaxiSys

diagnostic platform is now ready to perform vehicle diagnosis.

NOTE: When both the communication methods are applied at the same time,

the MaxiSys system will use the USB communication as the default priority.

4.1.3 No Communication Message

A. If the MaxiSys Display Tablet is not connected to the VCI device, an

“Error” message displays. An “Error” message indicates the display

tablet is not communicating with the VCI device, and so cannot gain

access to the vehicle control module. In this case, you need to do the

following check-ups:

 Check if the VCI device is powered on.

 In case of wireless connection, check if the network is configured

correctly, or if the right device has been paired.

 If during the diagnosis process, the communication is suddenly

interrupted due to the loss of signal, check if there is any object that

causes signal interruption.

 Check if the VCI device is properly positioned. It is recommended to

put the VCI device with the front side up.

 Try standing closer to the VCI device to obtain more stable signals,

and faster communication speed.