DTC U0401-68: Error Signal Received From Pcm: Notes

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.

System malfunction location	Error signal received from PCM
Detection condition	Forward sensing camera (FSC) receives error signal from the PCM for 1 s or more .
Fail-safe	Inhibits the lane departure warning system (LDWS). Inhibits the high beam control system (HBC).
Possible cause	DTCs are stored in the PCM. PCM malfunction Forward sensing camera (FSC) malfunction
System wiring diagram	-