Launch X-431 Quick Start Manual page 2

4. Vehicle Connection
1. Locate the vehicle's DLC:
The DLC(Data Link Connector) is typically a 16-pin
connector where diagnostic code readers interface with
the vehicle's on-board computer. It is usually located on
driver's side, about 12 inches away from the center of
dashboard.
In case no DLC is found, please refer to Automobile
Repair Manual.
2. How to take out the VCI ?
It is pre-installed in the docking slot on the top of the display tablet. Use the hand to press the
VCI once, it will be automatically ejected from the docking slot. When it is not in use, please
insert it into the slot to avoid loss.
*Note: Remember to remove the VCI from the vehicle's DLC and re-insert it into the VCI slot if it
keeps unused.
3. Vehicle Connection
1. OBD II Vehicle Connection
A. Directly plug the VCI into vehicle's DLC
B. Using OBD II extension cable to connect the VCI to the vehicle's DLC.
2. Non-OBD II Vehicle Connection
If the power supply on vehicle diagnostic socket is insufficient or the power pin is damaged,
you can get power in the following ways:
A. Via Cigarette Lighter Cable
To Cigarette Lighter Receptacle
VCI Connector
To Vehicle's DLC
B. Via Battery Clamps Cable
To Vehicle's Battery
VCI Connector
To Vehicle's DLC
DLC Location
Cigarette Lighter Cable
OBD I Adaptor
Non-16pin Connector
Battery Clamps Cable
OBD I Adaptor
Non-16pin Connector
5. Start Diagnostics
Before diagnosing, please make sure the following preparation:
s Switch the ignition on.
Vehicle battery voltage range should be 9-18Volts.
s
Throttle should be in a closed position.
s
For new users, please follow the operation chart shown on the left to get familiar with and start
using this tool.
Tap "Local
Diagnostic"
Is the VCI
activated ?
No
Tap "Login" to Tap "Update" to
register update software*1
...... (Refer to
Select vehicle*2
Section 3)
Register & Activate Select diagnostic
OK software version
Select test function Select test system
LAUNCH
Any question, please contact us via:
overseas.service@cnlaunch.com
Pictures illustrated here are for reference purpose only and this Quick Start Guide is subject to change
without notice. For more detailed operations, please refer to the User Manual.
Yes
Notes:
1. To enjoy more service and functions, you
are suggested to check for updates on a
frequent basis and keep synchronized
with the latest available software.
2. If you choose "VINScan" or "Intelligent
Diagnosis" to diagnose a vehicle, this
step shall not apply.
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