How to use Launch X431 V Pro 4.0 to make coding changes

Launch X431 V Pro 4.0 make coding changes

Launch X431 V+ 4.0 supports ECU Online Coding & Variant Coding. This article will introduce how to use Launch X431 V Pro 4.0 to make coding changes.

Plugin X431 into OBD 2 Port, Turn Key to Accessory Mode and then Select Intelligent Diagnose – check out this link for video on OBD 2 port location.
Launch X431 V Pro 4.0 make coding changes

Then select Diagnostic
Launch X431 V Pro 4.0 make coding changes

Then select System Selection
Launch X431 V Pro 4.0 make coding changes

Then select the appropriate System for the Code you want to adjust.
Note: This is the system listed in the pictures such as Front-end Electronics, Rear-End Electronics, Instrument Cluster or Air Conditioning.
Launch X431 V Pro 4.0 make coding changes

Then select Code/Brush Hiding
Launch X431 V Pro 4.0 make coding changes

Then select Brush Hidden/Modified
Launch X431 V Pro 4.0 make coding changes

Then find the Code you want to adjust (These are the Codes in the instructions below).
Then Make the Change.
Then Hit the Write Code Button.

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