Psa Interface Checker Scary Mistake Fix [verified] Online

The "Scary Mistake": How to Fix PSA Interface Checker Errors and Save Your Submission

If you are reading this, your heart is probably still pounding.

The real cause:
You have excluded devices (printers, network gear, servers) in the RMM contract but the PSA still counts them. Or you have a minimum billable unit clause. psa interface checker scary mistake fix

• Your laptop (running DiagBox)
• The VCI (Vehicle Communication Interface – e.g., Actia, Full Chip, Clone)
• The vehicle’s ECUs (Engine, BSI, ABS, etc.)

Step 7: DiagBox Version Matching

• Clone interfaces work best with DiagBox 7.83 to 7.87.
• Newer versions (9.x) often fail interface checker unless you have a full-chip VCI.