Start Diagnostics; Connections; Preparation; Dlc Location - Launch X-431 PAD V User Manual

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5 Start Diagnostics

5.1 Connections

5.1.1 Preparation

Normal testing conditions
• Turn on the vehicle power supply.
• Vehicle battery voltage range should be 9-18V or 11-36V and
working voltage of the tablet is 5V.
• Throttle should be closed at its close position.
• Ignition timing and idle speed should be within specified range;
water and transmission oil temperature are within normal working
range (water temperature is 90-110℃ and transmission oil
temperature is 50-80℃).
Select testing connectors/adaptor cables
If the tablet 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 dongle is
required.)

5.1.2 DLC Location

For Passenger Vehicles, the DLC (Data Link Connector or Diagnostic
Link Connector) is the standardized 16-cavity 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
16
to the vehicle's service manual for the location.
For Commercial Vehicles, the DLC is located in the driver's cab.

5.1.3 Vehicle Connection (For Passenger Vehicle Version)

The method used to connect the VCI device to a vehicle's DLC
depends on the vehicle's confi guration 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. Use the OBD II extension cable to connect the VCI device to the
vehicle's DLC socket.
3. Choose one of the two ways to obtain power from:
A. Power adaptor: Connect one end of the included power adaptor
to Power interface of the tablet, and the other end to AC outlet.
B. Internal battery pack: For details on how to recharge the tablet,
see "Chapter 3.1 Charging the tablet".
User's Manual
PAD V
Fig. 5-1