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Home >> Mazda >> 2024 >> CX-30 Premium >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> On-Board Diagnostic - Adaptive Front Lighting System Control Module >> DTC U212D-87: Communication Error With Light Control Module (RH) [Adaptive Front Lighting System (AFS) Control Module]
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DTC U212D-87: Communication Error With Light Control Module (RH) [Adaptive Front Lighting System (AFS) Control Module]

U212D: 87 (ALH/AFS/ALV) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Communication error with light control module (RH)
Detection condition
  • The auto leveling control module/adaptive front lighting system (AFS) control module/adaptive LED headlights control module cannot receive CAN signal from the light control module (RH).
Fail-safe
  • Control of the headlight auto leveling system is continued.
  • Turn off adaptive LED headlights. (with adaptive LED headlights)
  • Control of front combination light (LH) except for adaptive LED headlights is continued. (with adaptive LED headlights)
  • Set wide-range low beam as basic light distribution. (with adaptive LED headlights)
Possible cause
  1. Malfunction in CAN communication line between light control module (RH) and auto leveling control module/adaptive front lighting system (AFS) control module/adaptive LED headlights control module
NOTE:
Repeatability verification procedure
  • Not applicable
System wiring diagram
  • Not applicable