On-board diagnostic function

WARNING: This page is about a different car, the 2024 Mazda CX-90. However, it is still accessible from the selected car via links, so may be relevant.

The connectivity master unit (CMU) has an on-board diagnostic function to facilitate system diagnosis. DTCs are stored in the event of a malfunction occurring. For details, refer to the [DTC TABLE ] in the appropriate troubleshooting information .