Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information BCM-U010400

Condition
The control modules in the vehicle send and receive information continuously on the vehicle's controller area network (CAN).
The Supplemental restraint system module (SRS) is the main system in a local network, sensor-CAN, that both transmits and receives information via a standardized serial communication protocol - CAN (Controller Area Network). The local network can have several different control modules connected (market dependent).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Communication between Brake control module (BCM) and Forward Sensing Module (FSM) suffers from interference or is lost.

Note! This fault code is set regardless of on which network the problem is located.

The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition on.

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.
- Active yaw control (AYC) is blocked.

Hint: Brake system, abbreviations Brake System, Abbreviations

Possible source
- Disruption or intermittent open-circuit on the Control area network (CAN).
- Fault-trace the Forward Sensing Module (FSM).

Note! This diagnostic trouble code (DTC) is not due to an internal hardware fault in the Brake control module (BCM) and must not be remedied by replacing the control module.

Fault symptom[s]
- Adaptive cruise control; No Functionality
- Collision avoidance driver support; No Functionality
- Front monitoring/Active safety/City Safety does not work