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Cummins/Onan GST30 G-Drive / QST30 G-Drive — Troubleshoot a communications problem

Testing & diagnosis · INSITE communications

For the Cummins/Onan GST30 G-Drive / QST30 G-Drive, from the Cummins/Onan service manual.

Applies to: Cummins/Onan QST30 G-Drive engine

Procedure

  1. Check the COM port setting in the User Options dialog box to make sure it is correct.
  2. Check the cable connections to make sure all cables are securely in place.
  3. Make sure the ECM is powered ON.
  4. Try the function again.
  5. If the problem persists, exit INSITE QST30 G-Drive and contact your system administrator.

Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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