Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information BCM-U300316

Condition
The Brake control module (BCM) is supplied with 12 V via three fuses and is grounded at two ground terminals.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The power supply is lower than 9.5 V.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- The speed of the fastest rotating wheel exceeds 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
- Stability control (SC) blocked.
- Traction control (TC) blocked.
- Dynamic stability control (DSC) blocked.

Hint: Brake system, abbreviations Brake System, Abbreviations

Possible source
- Contact resistance in the terminals.
- Battery voltage too low.
- Fault in the charging system.
- Open-circuit in the power supply cable.
- Damaged fuse.
- Internal fault in the brake control module (BCM).

Fault symptom[s]
- ABS warning light on
- Brake circuit warning light on
- Anti-spin warning lamp lit
- Stability function is not working
- Traction control 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