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Home >> Mazda >> 2018 >> CX-9 Signature >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> On-Board Diagnostic - Adaptive Front Lighting Control Module >> DTC U0420-68: Error Signal Received From Electric Power Steering (EPS) Control Module >> Notes
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DTC U0420-68: Error Signal Received From Electric Power Steering (EPS) Control Module: Notes

DTC U0420:68 (Adaptive Front Lighting System (AFS) Control Module) DETECTION CONDITION AND POSSIBLE CAUSE

Description Error Signal Received From Electric Power Steering (EPS) Control Module
Detection Condition
  • The adaptive front lighting system (AFS) control module received error signal from the electric power steering (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 electric power steering (EPS) control module.
  • Electric power steering (EPS) control module malfunction
  • Adaptive front lighting system (AFS) control module malfunction
System Wiring Diagram Not applicable