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DTC B1D00-13: Headlight Leveling Actuator Circuit Malfunction [Auto Leveling Control Module]: Notes

WARNING: This page is about a different car, the 2021 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1D00:13 (AUTO LEVELING CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

Description Headlight (LH) circuit malfunction
Detection condition
  • The auto leveling control module detected an open circuit in the headlight (LH) circuit during the headlight LO on control with the ignition switched ON (engine off or on).
Fail-safe
  • Control of the headlight auto leveling system is continued.
Possible cause
  • Front combination light (LH) connector or terminal malfunction
  • Auto leveling control module connector or terminal malfunction
  • Short to ground in wiring harness between auto leveling control module terminal J and front combination light (LH) terminal M
  • Open circuit in wiring harness between auto leveling control module terminal J and front combination light (LH) terminal M
  • Front combination light (LH) malfunction
  • Auto leveling control module malfunction
G13675425Courtesy of MAZDA MOTORS CORP.