Inpa Error 159 Upd [ COMPLETE ◆ ]

You’ve just hooked up your K+DCAN cable to your E46, E90, or E39. You’ve launched INPA (the Standard BMW Diagnostic Tool). You select your chassis—E90, for instance. You click on the engine (DME). The status bar at the bottom turns green. You hold your breath. And then, instead of live data or fault codes, you are greeted by a pop-up window:

Some cheap Chinese interfaces come with faulty firmware for the PIC microcontroller. You can re-flash them using (for FTDI-based cables). Download the BMW Standard Tools compatibility firmware (version 1.5 or 1.6). After re-flashing, the interface will correctly handle job termination acknowledgments, eliminating Error 159. inpa error 159

If you have an E90 or newer (using D-CAN), you might see this error too, but it usually points to a different root cause (usually a missing DCAN adapter or wrong cable). You’ve just hooked up your K+DCAN cable to