DTC B13FE:12 [Front Body Control Module (FBCM)]: Notes

WARNING: This page is about a different car, the 2017 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

DTC B13FE:12 (FRONT BODY CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSES

Description	Headlight LO relay No. 1 circuit malfunction
Detection condition	Front body control module (FBCM) detects a short to power supply in the headlight LO relay No. 1 circuit with the ignition switched ON (engine off or on).
Fail-safe function	Not applicable
Possible cause	Headlight LO relay No. 1 malfunction Front body control module (FBCM) connector or terminal malfunction Short to power supply in the wiring harness between headlight LO relay No. 1 terminal A and front body control module (FBCM) terminal 2V Front body control module (FBCM) malfunction