Door Lock Does Not Operate: 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.

DOOR LOCK DOES NOT OPERATE [SECURITY AND LOCKS (US)] DETECTION CONDITION AND POSSIBLE CAUSE

Description	All doors cannot be locked/unlocked using the door lock switch. All doors cannot be locked/unlocked using the auto door lock.
Possible cause	Connector or terminal malfunction of the following parts: Door lock switch Front door latch and lock actuator Rear door latch and lock actuator BCM Electrical Supply Unit Door-electrical supply unit Short to ground or open circuit in door lock switch power supply circuit Open circuit in door lock switch ground circuit Short to ground or open circuit in door lock actuator (front door latch and lock actuator) signal circuit Short to ground or open circuit in door latch switch (front door latch and lock actuator) signal circuit Short to ground or open circuit in door lock actuator (rear door latch and lock actuator) signal circuit Short to ground or open circuit in door latch switch (rear door latch and lock actuator) signal circuit Door lock switch malfunction Front door latch and lock actuator malfunction Rear door latch and lock actuator malfunction Door-electrical supply unit malfunction
Courtesy of MAZDA MOTORS CORP.
Courtesy of MAZDA MOTORS CORP.