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DTC‐Masking‐Procedures

ECU ENGINEER edited this page Jan 10, 2026 · 1 revision

Real-time DTC (Diagnostic Trouble Code) Ghosting

The XRS-9000 utilizes Service 0x14 Filtering. When a scan tool sends a ReadDTCByStatus request, the XRS-9000 intercepts the ECU response and scrubs the payload for forbidden Hex strings.

Supported Error Masking

  • P0420/P0430: Catalyst Efficiency (For exhaust modifications).
  • U0100: Lost Communication with ECM/PCM (For module swaps).
  • P0601: Checksum Memory Error (For unsigned firmware flashes).

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