LAUNCH    X-431 PRO MINI User Manual 
17 
Fig. 4-9 
4.3.3 Vehicle connection 
The method used to connect the VCI module to a vehicle’s DLC depends on the 
vehicle’s configuration as follows: 
y
  A vehicle equipped with an OBD II management system supplies both 
communication and 12V power through a standardized DLC. 
y
 A vehicle not equipped with an OBD II management system supplies 
communication through a DLC connection, and in some cases supplies 12V 
power through the cigarette lighter receptacle or a connection to the vehicle 
battery. 
Follow the steps mentioned below to connect OBD II vehicle
:  
1.  Locate vehicle’s DLC socket.   
2.  Plug the VCI module into the vehicle’s DLC socket (It is suggested to use the 
OBD II extension cable to connect the VCI module and DLC socket.).   
 
Fig. 4-10 
3.  Choose one of the two ways to obtain power from: 
A. Power adaptor: Connect one end of the included power adaptor to DC IN 
port of X-431 PRO MINI tablet, and the other end to AC outlet. 
B. Internal battery pack 
For non-OBDII vehicle
, proceed as follows: 
1.  Locate vehicle’s DLC socket.   
2.  Select the corresponding non-16pin connector. 
3.  Plug the non-16pin end of the connector into the DLC socket, then connect 
the other end to the OBD I adaptor, and then tighten the captive screws. 
4.  Connect the other end of the adaptor to the included VCI module. 
5.  To supply power to OBD I adaptor from: 
A. Cigarette Lighter cable(optional)
: Connect one end of the cigarette lighter 
cable to vehicle’s cigarette lighter receptacle, and the other end to the power 
jack of OBD I adaptor.