DTC U0401-00; Error Signal Received From Pcm: Notes

DETECTION CONDITION & POSSIBLE CAUSE

Description	Error signal received from PCM
Detection condition	Communication error between PCM and radar unit
Fail-safe	Inhibits the mazda radar cruise control (MRCC) system control
Possible cause	DTCs are stored in the PCM. PCM malfunction Radar unit malfunction
System wiring diagram	Not applicable