Running the HGS PassThru Software

CAUTION

caution

Pay attention that the voltage supply during the entire procedure is not lower than 12 V.

A voltage drop may lead to the abortion of the download and the ECU may be damaged.

The old software version of the ECU cannot be re-established if an update is intended.

NOTICE

notice

No other functions can be executed with the mega macs X while the PassThru procedure is in progress.

Proceed as follows to run the HGS Pass Thru software:

  1. Switch on the mega macs X.
  2. Activate the Pass Thru function under Settings > User profile > Miscellaneous.
  3. Connect the USB cable to the USB port of the mega macs X.

  4. CAUTION

    caution

    Rolling of vehicle

    Risk of injury or material damages

    Proceed as follows before startup:

    1. Apply the parking brake.

    2. No gear is engaged.

    3. Regard the window with information and instructions.

  5. NOTICE

    notice

    Danger of short circuit and voltage peaks when connecting the OBD plug

    Danger of destruction of automotive electronics

    Switch off ignition before connecting the OBD plug to the vehicle.

  6. Plug in the OBD plug in the vehicle's diagnostic connector.
  7. Insert the USB cable into the USB port of the laptop/tablet.
  8. Connection is being established. The laptop/tablet is connected to the vehicle.
  9. The PassThru function is active.
  10. Switch on the vehicle ignition.
  11. Observe the manufacturer's specifications.
  12. Select the HGS PassThru shortcut on the desktop.
  13. Select the requested language.
  14. Call up the requested manufacturer web site online with the laptop/tablet.
  15. Follow the instructions on the manufacturer portal.
  16. Select PassThru of Hella Gutmann.