Inpa Error 159 [updated] -

Check your system tray and Task Manager for programs that may be holding COM1:

Use at your own risk. Always ensure proper battery voltage and understand the functions before modifying any control units.

If software configurations are correct, physical factors might be dropping the signal. inpa error 159

The ediabas.ini file contains parameters that dictate how INPA handles data buffers. Improperly configured buffer sizes cause crashes.

Change this value from the default 16ms down to 1 (or 2ms if 1ms causes instability). This is crucial; if it is set to 16, communication will time out, causing Error 159. Click OK to save and exit. Solution 2: Verify EDIABAS.ini Configuration Check your system tray and Task Manager for

INPA requires the hardware and software to be on the exact same "channel." Open > Ports (COM & LPT) .

Once you set the cable to COM1, always plug it into the same USB port. Windows may assign a different COM number if you use a different port. The ediabas

Ensure the port number matches the exact COM port you set in the Device Manager step above. Save and close the file. Step 4: Verify the Ignition State