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Home >> Mazda >> 2021 >> CX-9 Signature >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (On-Board Diagnostic - Adaptive Front Lighting System Control Module) >> DTC B1D01-13; Headlight (RH) Circuit Malfunction >> Notes
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DTC B1D01-13; Headlight (RH) Circuit Malfunction: Notes

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
DETECTION CONDITION AND POSSIBLE CAUSE

Description Headlight (RH) circuit malfunction
Detection condition
  • The adaptive front lighting system (AFS) control module detected an open circuit in the headlight (RH) circuit during the headlight LO on control with the ignition switched ON (engine off or on).
Fail-safe
  • Control of the adaptive front lighting system (AFS) is continued.
  • Control of the headlight auto leveling system is continued.
Possible cause
  • Front combination light (RH) connector or terminal malfunction
  • Adaptive front lighting system (AFS) control module connector or terminal malfunction
  • Short to ground in wiring harness between adaptive front lighting system (AFS) control module terminal H and front combination light (RH) terminal N
  • Open circuit in wiring harness between adaptive front lighting system (AFS) control module terminal H and front combination light (RH) terminal N
  • Front combination light (RH) malfunction
  • Adaptive front lighting system (AFS) control module malfunction
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