DTC B13CF-19: IG2 Power Supply Output Circuit Malfunction: Notes

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DTC B13CF:19 (FRONT BODY CONTROL MODULE (FBCM)) DETECTION CONDITION AND POSSIBLE CAUSE

Description	IG2 Power Supply Output Circuit Malfunction
Detection condition	Front body control module (FBCM) detects over-current in the IG2 power supply output circuit with the ignition switched ON (engine off or on).
Fail-safe	Stops IG2 power supply output. (Resumes when ignition is switched from OFF to ON)
Possible cause	Front body control module (FBCM) connector or terminal malfunction Short to ground in front body control module (FBCM) IG2 power supply IG2 power supply output circuit related parts malfunction Front body control module (FBCM) malfunction