Diagnostic Trouble Code (DTC) Information BCM-U040168
Condition
The control modules transmit and receive information via a standardized serial communication method - CAN (Control Area Network). If a control module registers a fault, the control module can then transmit a signal informing that its information cannot be trusted.
The diagnostic trouble code (DTC) is stored if the control module detects:
- The signal that informs that the information from the Engine control module (ECM) is incorrect.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.
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 blocked.
- Traction control blocked.
- Active yaw control (AYC) is blocked.
HINT: BRAKE SYSTEM, ABBREVIATIONS
Possible Source
- Locate the cause of the fault in the engine control module (ECM).
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]
- 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
- Front monitoring/Active safety/City Safety does not work