Launch X431 Launch X431 CRP919EBT/CRP919XBT read and clear fault code on 2021 SGM Buick successfully.
Menu function path:
Select [Intelligent Diagnose] on the main menu to identify the vehicle info.

Select [Diagnostic]

Select the corresponding protocol

Select [System Scan]

Select the corresponding system (i.e. TCM/Transmission Control Module)
Select [Read DTC]

Check the DTC read out and generate diagnostic report

Select [Clear DTC]
Turn the ignition on, engine off, DTC and frozen frame data will be cleared
Clear fault code completed
 
Read DTC to confirm the fault code has been cleared successfully.






