16
LAUNCH
X-431 PAD V
User's Manual
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 X-431 PAD V 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 X-431 PAD V 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
to the vehicle’s service manual for the location.
Fig. 5-1
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 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.).
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 X-431 PAD V tablet, and the other end to
AC outlet.
