Code Definition

C200B — Electric Parking Brake Motor Gear Unit Position Incorrect (RH)

System: Chassis  |  Type: Generic (OBD-II Standard)  |  Make: Mazda

About C200B

C200B is a generic (obd-ii standard) chassis diagnostic trouble code recorded for Mazda vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

Because C200B is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The Electronic Parking Brake (EPB) control module monitors the commanded position and the actual position feedback of the rear parking brake motor gear units. DTC C200B is set when the module detects that the right hand EPB motor gear unit position does not correspond with the commanded apply or release position, or fails to reach and hold that position within the specified time and tolerance. The actuator uses an electric motor and a gear reduction unit to clamp the rear brake, and the module verifies travel through motor current and internal position feedback. When this code sets the driver ...

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