Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information BCM-C00201C

Condition
The brake system's pump motor is located on the hydraulic module together with the Brake control module (BCM). The hydraulic pump motor builds up pressure that is necessary during ABS braking, stability control and brake assistance.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The voltage to the hydraulic pump motor is too low when the pump motor is not activated.
- The voltage to the hydraulic pump motor is too high when the pump motor is not activated.
- The voltage to the hydraulic pump motor is too low when the pump motor is activated.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Speeds above 20 km/h.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.





Substitute value
- ABS blocked.
- Traction control (TC) blocked.
- Stability control (SC) blocked.
- Active yaw control (AYC) is blocked.
- Brake assistance (BA) blocked.

Hint: Brake system, abbreviations Brake System, Abbreviations

Possible source
- Contact resistance in the terminals.
- Fuse for the pump motor is damaged.
- Open-circuit in the power supply cable.
- Open-circuit in the ground lead.
- Damaged pump motor.
- Internal fault in the control module.

Fault symptom[s]
- ABS warning light on
- Anti-spin warning lamp lit
- Traction control not working
- Stability function is not working
- Anti skid function is not working
- Adaptive cruise control; No Functionality
- Collision avoidance driver support; No Functionality
- Electrical parking brake; Reduced Functionality
- Front monitoring/Active safety/City Safety does not work