DTC C0049-85: Brake Fluid Level Signal Error: 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 C0049:85 RADAR UNIT DETECTION CONDITION AND POSSIBLE CAUSE

Description	Brake Fluid Level Signal error
Detection condition	The front body control module (FBCM) continues the detected condition in which the brake fluid level is less than MIN for the specified period or more.
Fail-safe	Inhibits the Mazda radar cruise control (MRCC) system control Inhibits the smart brake support (SBS) system control Inhibits the distance recognition support system (DRSS) control
Possible cause	Insufficient brake fluid level Front body control module (FBCM) malfunction Signal error in circuit between front body control module (FBCM) and radar unit
System wiring diagram	Not applicable