DTC C1128-2A: Electric Parking Brake Switch [DSC HU/Cm]: 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.

System malfunction location	Electric parking brake switch
Detection condition	While the vehicle is stopped, the DSC HU/CM detects that the activate operation or release operation of the electric parking brake switch continues for 60 s or more.
Fail-safe	Refer to "DTC Table" and "Fail-safe Function Malfunction Contents Table". (See DTC TABLE [DSC HU/CM (US)] .)
Possible cause	CAUTION: When the electric parking brake switch is continuously pulled up/pressed down for a long period, DTCs may be detected. Therefore, always verify that DTCs being detected are due to how the customer has operated the switch. Electric parking brake switch malfunction Electric parking brake switch is mechanically stuck DSC HU/CM malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable