ISTA Voltage Control Tool EDIABAS ISTA INPA – Voltage Control BMW

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ISTA Voltage Control Tool – Manual Voltage Control for ISTA+ & INPA

The ISTA Voltage Control Tool is a small software suite for manual control of voltages detected by EDIABAS via interfaces such as OBD or CAN. It offers additional ISTA+ support and is compatible with all versions of INPA, ISTA+, and other BMW diagnostic programs.

The suite integrates seamlessly between EDIABAS and cable drivers and works completely transparently for higher-level software – regardless of INPA and ISTA versions.

Installation Guide – ISTA Voltage Control

  1. Open the EDIABAS folder:
    • For INPA: C:\Ediabas\Bin
    • For ISTA+: Ediabas\Bin in the ISTA+ directory
  2. When using STD:OBD → rename the existing obd32.dll to obd32.ebas.dll.
    For other cable types, rename the respective DLL accordingly (e.g., STD:CAN → can32.dll to can32.ebas.dll)
  3. Unpack the downloaded file
  4. Copy the enclosed obd32.dll to Ediabas\Bin (for other cable types, rename it accordingly beforehand)
  5. For ISTA+ only: Copy NodeISTAVoltageControl.dll to the Ediabas\Bin folder of the ISTA+ installation
  6. For ISTA+ v4.05 and higher only:
    • Replace the existing IstaOperation.exe in the TesterGUI\Bin\Release folder
    • Run AllowFakeISTAOperation.reg (x86 or x64 depending on the system)

To manually control voltage, start the included application NodeEdiabasVoltageControl.exe. The voltage can be adjusted via sliders or deactivated via a checkbox. Deactivate = set slider to 0V.

Update V2.0 – New Features

  • Checks the actual interface type setting in ISTA at runtime – when switching from EDIABAS to ICOM, disruptions are stopped and automatically resumed when switching back
  • Supports K+DCAN cables that can detect terminal states – automatic detection without manual intervention when the control application is closed

Update V3.0 – New Features

  • Control application can now be minimized
  • Support for ISTA+ v4.05 and higher

System Requirements

  • Visual Studio 2015 x86 runtime environment must be installed
  • Compatible with original ISTA+ – no standalone installation required

Note: This voltage control tool does not affect voltages reported by ICOM.