Connections; Preparation; Dlc Location; Vehicle Connection (For Passenger Vehicles) - Launch X-431 Throttle III User Manual

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4.5 Connections

4.5.1 Preparation

Normal testing conditions
 Turn on the vehicle power supply.
 Vehicle battery voltage range should be 11-14V or 18-30V.
 Throttle should be in a closed position.

4.5.2 DLC location

1. For Passenger Vehicles,
The DLC (Data Link Connector) is typically a standard 16 pin connector where diagnostic
code readers interface with the vehicle's on-board computer. The DLC is usually located
12 inches from the center of the instrument panel (dash), under or around the driver's
side for most vehicles. If Data Link Connector 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 for the location.
2. For Commercial Vehicles,
The DLC is generally located in driver's cab.

4.5.3 Vehicle connection (For Passenger Vehicles)

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
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