DTC U0405-00; Error Signal Received From Radar Unit: Notes

WARNING: This page is about a different car, the 2017 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION AND POSSIBLE CAUSES

Description	Error signal received from radar unit
Detection condition	The active driving display receives the error signal from the radar unit for the ignition switched ON (engine off or on).
Fail-safe	-
Possible cause	DTCs are stored in the radar unit. Radar unit malfunction Active driving display malfunction
System wiring diagram	-