Dlc Location; Vehicle Connection - LAUNCH TECH X-431 PRO V4.0 User Manual

LAUNCH
If the tool is testing vehicles equipped with universal OBD II 16 PIN diagnostic
socket, please use the included VCI device. (For vehicles with non-OBD II 16
PIN diagnostic socket, a non-16 PIN connector is required.)

4.3.2 DLC location

The DLC (Data Link Connector) is typically a standard 16-pin connector where
diagnostic tools interface with a vehicle's on-board control modules. The DLC is
usually located 12 inches from the center of the instrument panel, under or
around the driver's side for most vehicles. If DLC is not located under dashboard,
a label should be there telling location. For some Asian and European vehicles,
the DLC is located behind the ashtray and the ashtray must be removed to
access the connector. If the DLC cannot be found, refer to the vehicle's service
manual.

4.3.3 Vehicle connection

The method used to connect the VCI device to a vehicle's DLC depends on the
vehicle's configuration as follows:
 A vehicle equipped with an OBD II management system supplies both
communication and 12V power through a standardized DLC.
 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 device into the vehicle's DLC socket (It is suggested to use the
OBD II extension cable to connect the VCI device and DLC socket.).
X-431 PRO V4.0 User Manual
Fig. 4-10
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