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
- Open circuit in wiring harness between climate control unit and connector C-04
- Open circuit in wiring harness between connector C-04 and connector C-33
- Connector C-04 malfunction
- Connector C-33 malfunction
- CAN circuit in climate control unit malfunction