On-Board Diagnostic (OBD) test mode: Notes

WARNING: This page is about a different car, the 2024 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

The OBD system detects malfunction in the exhaust gas purification system and evaporative gas leakage of the vehicle itself, and it records that malfunction content.
Diagnosis related to the OBD system can be facilitated using the OBD test mode.