DTC B0052-09, B0052-11 Or B0052-14: Passenger-Side Buckle Switch (Airbag) (Us): Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC B0052:09, B0052:11 OR B0052:14 [SAS CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	B0052:09: Passenger-side buckle switch internal malfunction B0052:11: Passenger-side buckle switch circuit open circuit or short to power supply B0052:14: Passenger-side buckle switch circuit short to body ground
Detection condition	WARNING: Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only the detection conditions may cause injury due to an operating error, or damage the system. When performing an inspection, always follow the inspection procedure. B0052:09: The SAS control module detects that the passenger-side buckle switch signal from the seat weight sensor control module is undetermined. B0052:11: The seat weight sensor control module detects a short to power supply or open circuit in the passenger-side buckle switch signal circuit. B0052:14: The seat weight sensor control module detects a short to ground in the passenger-side buckle switch signal circuit.
Fail-safe	Not applicable
Possible cause	Communication error between seat weight sensor control module and SAS control module Seat weight sensor control module malfunction Passenger-side buckle switch connector malfunction Seat weight sensor control module connector malfunction Short circuit to body ground in passenger-side buckle switch signal circuit Open circuit in passenger-side buckle switch signal circuit Short circuit to each other in passenger-side buckle switch signal circuit Short circuit to power supply in passenger-side buckle switch signal circuit Passenger-side buckle switch malfunction SAS control module malfunction
Courtesy of MAZDA MOTORS CORP.