DTC U0423-68; Error Signal Received From Instrument Cluster: Notes

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION & POSSIBLE CAUSE

Description	Error signal received from instrument cluster
Detection condition	Auto leveling control module received headlight illumination state signal which undefined for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe	Control of the headlight auto leveling system is continued.
Possible cause	DTCs are stored in the instrument cluster. Instrument cluster malfunction Auto leveling control module malfunction
System wiring diagram	Not applicable