FixVault

DTC U0443-00: Error Signal Received From Rear Body Control Module (RBCM): Notes

System malfunction location Error signal received from rear body control module (RBCM)
Detection condition 
  • Communication error between rear body control module (RBCM) and vehicle control module (V/C-module)
Fail-safe 
  • Inhibits the Mazda radar cruise control (MRCC) system control
  • Inhibits the forward obstruction warning (FOW) system control
Possible cause 
  • Rear body control module (RBCM) malfunction
  • Instrument cluster malfunction
  • Vehicle control module (V/C-module) malfunction
System wiring diagram 
  • Not applicable