DTC U0443-00; Rear Body Control Module Error Signal: Notes

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION AND POSSIBLE CAUSE

Description	Rear Body Control Module Error Signal
Detection condition	Communication error between rear body control module (RBCM) and radar unit
Fail-safe	Inhibits the Mazda radar cruise control (MRCC) system control Inhibits the smart brake support (SBS) system control
Possible cause	DTCs are stored in the rear body control module (RBCM). DTCs are stored in the instrument cluster. Instrument cluster malfunction Rear body control module (RBCM) malfunction Radar unit malfunction
System wiring diagram	Not applicable