Possible cause
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
- Connector terminal disconnection, poor contact, damage, deformation, corrosion
- Rear body control module (RBCM) power supply voltage or body ground malfunction
- Rear body control module (RBCM) malfunction