[Solved] PCMTuner software Unable to Use Selected Interface J2534

 Question:

What’s this message of pcmtuner? this error appeared.

‘Unable to Use Selected Interface J2534 Scanmatik -SM2 USB’

PCMTuner software cannot use J2534 solution

Solution:

The fact your interface hung means there was an issue.
Clear everything and have a tidy place to work with just ECU and LAPTOP.
Disconnect everything. Restart laoptop. Turn on/off pcmtuner power. Restart pcm-flash.
Redo all connections SLOWLY and recheck. Then try to read.
You do not need a battery just use a power supply. EXTRA POWER is not the answer for not reading.

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