Find and change its drop-down value from 16 down to 1 . Click OK to apply and close out the windows.
If you are using a round 20-pin adapter (under the hood of E46/E39) with a 16-pin OBD2 cable, the adapter must bridge pin 7 (K-Line) and pin 8 (Battery+). Cheap adapters have no electronics—just wires. This creates a "bounce" in the K-Line signal during initialization. INPA starts a job, the line glitches, and the ECU cancels. inpa error 159
Error 159 appears 10 seconds after starting a job. Works fine on same laptop running Windows 7. Find and change its drop-down value from 16 down to 1
: Only one program (INPA, Tool32, WinKFP, or NCSExpert) can access EDIABAS at a time. If you try to open Tool32 while INPA is active, you may trigger communication errors. : Verify that your USB-to-Serial adapter is set to Cheap adapters have no electronics—just wires
This specific error message typically reads: or "IFH-0009: No response from control unit." It indicates that the INPA software is attempting to communicate with a specific control module in your vehicle, but the module is not responding within the allowed time frame.
If you are working on an older BMW (pre-2007, E46, E39, E53), you may need a switchable K+DCAN cable to bridge pins 7 and 8. Without this bridge, you may only access the engine ECU, leading to the error for all other modules. Summary of Solutions Potential Cause COM Port Mismatch Set to COM1 in Device Manager & obd.ini High Latency Set Latency Timer to 1ms No Ignition Turn key to Position 2 (KL15) Pin 7+8 Missing Bridge Pins 7/8 (Pre-2007) Driver Issue Reinstall USB Serial Drivers (FTDI)