DTC B1D00-13; Headlight (LH) Circuit Malfunction: Notes

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION & 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	DTCs are stored in the front body control module (FBCM). Headlight LO (LH) circuit malfunction 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 E Open circuit in wiring harness between auto leveling control module terminal J and front combination light (LH) terminal E Front combination light (LH) malfunction Auto leveling control module malfunction