Inpa Error 159 Jun 2026

This specific error typically displays as ERROR_ECU_BUSY_REPEAT_REQUEST or IFH-0009: No response from controlunit . It triggers when the INPA software sends a request over the data bus, but the target module fails to reply within the strictly allowed millisecond timeframe.

Are you getting an error code in any (such as NCS Expert or ISTA)?

: Check the physical switch on your K+DCAN cable. If your car is pre-2007, you may need to bridge pins 7 and 8 on the cable connector. For post-2007 cars, these pins must be separated.

In INPA and EDIABAS environments, typically indicates a communication failure between your diagnostic cable and the vehicle's control modules. This error frequently occurs when using older DIS (Diagnostic Information System) software alongside INPA, often appearing as "Error 200.159". Quick Fix Checklist inpa error 159

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

By aligning your hardware latency, matching your SP-Daten files, and verifying your path settings, you should permanently clear INPA Error 159 and enjoy a stable diagnostic connection.

Does the C:\EDIABAS\Bin\obd.ini file match the assigned COM port? : Check the physical switch on your K+DCAN cable

Navigate to the tab and click the Advanced button.

Optional: While here, you can change the COM port number to or COM2 (as older INPA versions prefer lower numbers), though any COM port is fine as long as you match it in the next step. Click OK to save. Step 3: Match the OBD.ini File

On E46 and E39 with K-Line, the standard polling rate is too fast. You need the executable. In INPA and EDIABAS environments, typically indicates a

: Occasionally, security software blocks the EDIABAS background process.

: The most frequent culprit. Your COM port latency must be set to 1ms .

cd C:\EDIABAS\BIN