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DTC B1D01-13: Headlight (RH) Circuit Malfunction: Notes

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1D01:13 ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE DETECTION CONDITION AND POSSIBLE CAUSE

Description Headlight (RH) Circuit Malfunction
Detection condition
  • The AFS control module detected an open circuit in the headlight (RH) circuit during the headlight LO on control for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe
  • Control of the AFS is continued.
  • Control of the headlight auto leveling system is continued.
Possible cause
  • DTCs are stored in the front body control module (FBCM).
    • Headlight LO (RH) circuit malfunction
  • Front combination light (RH) connector or terminal malfunction
  • AFS control module connector or terminal malfunction
  • Short to ground in wiring harness between AFS control module terminal J and front combination light (RH) terminal N
  • Open circuit in wiring harness between AFS control module terminal J and front combination light (RH) terminal N
  • Front combination light (RH) malfunction
  • AFS control module malfunction
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