But if you are reading this, you are not here to celebrate INPA. You are frustrated. You have plugged in your K+DCAN cable, fired up your old Windows XP or Windows 10 laptop, clicked the battery icon, clicked the ignition icon... and then you saw it:
You will typically see the error in a red dialog box. The full text often reads: inpa error 159
The error usually translates to: or "Internal Control Unit Fault." But if you are reading this, you are
Sometimes the error is paired with SYS-0015 in the EDIABAS trace file, indicating a "transmission timeout." and then you saw it: You will typically
Most INPA communication errors, including the 159 timeout, stem from Windows COM port settings. DIS - Fault 200 159 - Bimmerforums - The Ultimate BMW Forum
Loose OBD-II port connections or faulty USB ports on your laptop.