LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2017 >> 6 Touring, Automatic Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> On-Board Diagnostic - Adaptive Front Lighting System Control Module >> DTC U0420:68 [Adaptive Front Lighting System (AFS) Control Module] >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0420:68 [Adaptive Front Lighting System (AFS) Control Module]: Notes

DTC U0420:68 (ADAPTIVE FRONT LIGHTING SYSTEM CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Error signal received from EPS control module
Detection condition
  • The AFS control module received error signal from the EPS control module for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe
  • The swivel actuator is moved to the center.
  • Control of the headlight auto leveling system is continued.
Possible cause
  • DTCs are stored in the EPS control module.
  • EPS control module malfunction
  • AFS control module malfunction
System wiring diagram -