DTC B10AF-12: Blower Relay 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 B10AF:12 (FRONT BODY CONTROL MODULE (FBCM)) DETECTION CONDITION AND POSSIBLE CAUSE

Description	Blower Relay Circuit Malfunction
Detection condition	Front body control module (FBCM) detects a short to power supply in the blower relay circuit with the ignition switched ON (engine off or on)
Fail-safe	Not applicable
Possible cause	Blower relay malfunction Front body control module (FBCM) connector or terminal malfunction Short to power supply in the wiring harness between blower relay terminal D and the front body control module (FBCM) terminal 2Z Front body control module (FBCM) malfunction