X-431 HD Module Quick Start Guide
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Knowledge of X-431 HD Module
Diagnostic socket
(For connecting the diagnostic cable.)
DC-IN power jack
USB port
Displays the working status of the module.  t is defined a s 
follows:
I
1.   Vehicle: While the module is communicating with the 
vehicle, the indicator lights up and flashes. Otherwise, 
it will not illuminate.
2.    Power: It illuminates solid red when the module is 
powered on.
3.    Bluetooth: Blue indicates the module is working in 
Bluetooth mode.
4.    USB: It lights up when the module is connected to the 
diagnostic tool via USB cable.
LED Indicators
X-431 HD module works as a vehicle communication interface device, which is used read the 
vehicle data and then send it to the diagnostic tool via Bluetooth communication and USB 
connection. The LED indicators enable you to easily identify the working status of the module.
Technical parameters:
 Working voltage: 9-36V
 Power consumption:≤ 2W
 Working temp.: - 10℃-55℃
 Communication via: 
 1) USB cable
2) Bluetooth
Note: When the diagnostic 
cable or adaptor cable keeps 
unused, please remember to 
unplug it from the vehicle’s 
DLC.
X-431 HD module
(For collecting vehicle live data) 
Bluetooth 
To vehicle’s DLC
Diagnostic cable
Working Principle
USB cable
Accessory Checklist
HD module Diagnostic cable USB cables 
Cigarette lighter          Battery clamps cable           Adaptor cable kit                                                           
(For accessing vehicle 
live data)
(To connect the 
 module and diagnostic 
tool to perform vehicle 
diagnosis.)
HD
(To connect the 
module to the diagnostic 
tool with different type of 
USB port.)
HD 
(A piece of paper bearing 
S/N and Activation Code, 
which is needed for your 
registration.)
Power adaptor Password envelope  
(Sends the vehicle data 
to diagnostic tool) 
(For connecting the power adaptor 
or cigarette lighter/battery clamps 
cable to obtain power. 
(For connecting it to the diagnostic 
tool to perform vehicle diagnosis.)
(For different vehicle 
diagnostic socket, it may 
be necessary to use one of 
the adaptor cables included 
within the kit.)
(To supply power to the HD 
 module through connection 
to vehicle’s battery.)
(To supply power to the HD 
module through connection 
to cigarette lighter 
receptacle.)
(To supply power to the HD 
module through AC outlet.)
Launch’s Android-based diagnostic tool
(such as X-431 PAD II etc)
(For analyzing received vehicle data and 
indicating the test results.)