How to use Launch X431 HD Heavy Duty Truck Diagnostic Module

Original Launch X431 HD Heavy duty Truck Module is a new generation heavy-duty truck fault diagnostic tool developed by Launch Tech regarding internet application on the basis of Android OS. It communicates with X431 V/X431 V+ PRO3/X431 PAD II through Bluetooth to achieve fault diagnosis for various car models and full systems. .

Main Features:

Wireless Bluetooth Diagnosis
Host machine and diagnostic connector adopt Bluetooth connection, making diagnosis more convenient.

Support various vehicle models

34 model software, support more than 60 car models. Moreover, the software is being continuously developed.

Industrial shockproof design

Industrial shockproof design is perfect for the working environment in repair shops.

Various configurations are available for selection
Suppose you are going to purchase heavy-duty truck diagnostic tool, you can choose X-431 PRO3 or X-431 PAD II as host machine. If you have already bought X-431 PRO3 or X-431 PAD II diesel configuration, now you want to test truck, just buy a heavy-duty truck module.
Full comprehensive diagnostic software functions.

Wide diagnostic software coverage.
Accurate test data.
Software based on Android, matching with more diagnostic hosts.
Release new software version timely to let customers enjoy latest service.
Able to test truck with 12V or 24V battery diesel engine. When testing 24V truck, battery conversion is not required.
Diagnostic hardware is designed according to international standard, compatible with diagnostic interfaces of worldwide models.

Launch X431 HD Heavy Duty Module User Manual

How to Download and Install X-431 HD Module App?
1. Visit the LAUNCH website and download the application corresponding to X-431 HD module;
Note: If downloading using the diagnostic tool please make sure Wi-Fi has good or strong signals.
2. Follow the on-screen instructions to install it. Once installation is complete, an application icon will appear on the HOME screen.

How to Activate Launch X-431 HD Module?
After purchasing X-431 HD module, you have to activate it before use.
Follow the steps below to proceed:
1. Launch the application, and tap to enter;
2. Tap “Profile” from the pull-down menu, and then tap “Connector Activation”;
3. Input the Serial Number and Verification Code, which can be found in the included password envelope. Tap “Activate”.

How to connect X-431 HD to OBD II vehicle?

Follow the steps described below to proceed:

1. Locate vehicle’s DLC socket. 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. If the DLC cannot be found, refer to the vehicle’s service manual for the location.

2. Connect one end of the main cable to the diagnostic socket, and then connect other end to the vehicle’s DLC (For non-16 pin DLC, you need to choose the corresponding diagnostic connector). See Fig.

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