If the result shows Error 159 , EDIABAS cannot talk to the interface at all—check your COM port driver. If it passes, the issue is with the car’s specific ECU.
If you are using INPA over a VPN (e.g., for remote coding), Error 159 often occurs due to network issues.
For DCAN vehicles (E90 onward), you can emulate an ICOM using software like . This changes the job handling mechanism from "single job cancel on error" to "retry queue." It masks Error 159, though it doesn't fix the root cause. inpa error 159
If other software works but INPA does not, the problem likely lies within INPA’s configuration or script files.
Open OBD.ini with Notepad and verify the very first lines look exactly like this: [OBD] Port=Com1 Use code with caution. If the result shows Error 159 , EDIABAS
Many aftermarket K+DCAN cables lack a physical switch or proper internal wiring to bridge Pin 7 and Pin 8. Older BMWs use separate pins for engine diagnostics and chassis diagnostics, causing timeouts when accessing specific sub-modules. Step-by-Step Resolution Blueprint Follow these steps sequentially to fix INPA Error 159. Step 1: Force Latency Timer to 1ms This is the most frequent culprit behind the timeout loop.
On E46 and E39 with K-Line, the standard polling rate is too fast. You need the executable. For DCAN vehicles (E90 onward), you can emulate
: Occasionally, security software blocks the EDIABAS background process.
: Close INPA and manually terminate any EDIABAS.exe processes in the Task Manager before trying again.