Possible cause
WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
- Connector terminal disconnection, poor contact, damage, deformation, corrosion
- TCM power supply voltage or body ground malfunction
- Open circuit in wiring harness between TCM and connector C-02
- Open circuit in wiring harness between connector C-02 and branch A
- Connector C-02 malfunction
- TCM malfunction