Free Download PCMTuner Scanmatik Driver

If pcmtuner pcmflash application says unable to use selected interface j2534 scanmatic SM2 USB (shown image below),  it can be a driver issue.

Pcmtuner Unable Use Selected Interface

If you have installed the driver, delete it and reinstall driver.

If don’t install scanmatik driver,  download pcmtuner scanmatic driver here



If had this error during pcmtuner software installation,

An error occurred while trying to read the source file:
The system cannot find the file specified.

Pcmtuner System Error

Run setup as admin, disable ALL antivirus and realtime scans, if win7 ensure framework 4.8 is installed.
Free download net.framework 4.8

If update pcmflash to 1.2.5 by mistake, delete pcmflash 1.2.5 and reinstall pcmflash 1.2.0.

Download pcmflash 1.2.0 here

PCMTuner USB Not Working After Update PCMFlash 1.2.5 by Mistake?