Inpa Error 159 Jun 2026

Programs like Skype, Hyper-V, VirtualBox, or even some printer drivers can lock onto the virtual COM port. When INPA tries to access the port, it is blocked, and you get Error 159.

With patience and the systematic approach outlined above, you will conquer INPA Error 159 and unlock the full diagnostic power of your BMW. inpa error 159

is intimidating at first glance, but it is almost always a symptom of configuration mismatch, not a hardware failure. In 95% of cases, the fix involves adjusting COM port settings, editing a single text file ( Ediabas.ini ), or properly installing drivers. Programs like Skype, Hyper-V, VirtualBox, or even some

Temporarily disable your firewall or antivirus to see if the connection establishes. Summary Checklist Troubleshooting Step Check physical cable connection and USB seating. No Ignition Dot Bridge pins on 20-pin adapter or replace low-quality cable. Latency Issues Set COM1 Latency to in Device Manager. Software Config Ediabas.ini Interface = STD:OBD If you're still stuck, consider downloading a fresh set of Bimmergeeks Standard Tools is intimidating at first glance, but it is

If using an IP-based interface, ensure the RemoteHost matches your device's IP.

Temporarily turn off Windows Firewall and antivirus while running diagnostics to rule out blocked data packets.

To diagnose INPA error 159, follow these steps: