Diagnostic Trouble Code (DTC) Information CVM-U300064

Condition 

The Closing velocity module (CVM) monitors the internal functions of the control module.

The diagnostic trouble code (DTC) is stored if the control module detects that:

• Pre-loading of brake pressure requested for too long.
• Torque limiting in the engine requested for too long.

The control module's test for the diagnostic trouble code (DTC) starts when:

• The vehicle is in normal mode.
• Engine running.
• The voltage supply to the control module is 9-16 V.

Fig 1: Identifying Closing Velocity Module (CVM)

Courtesy of VOLVO CARS CORPORATION

Substitute Value 

• switches off.

Possible Source 

• Internal fault in the Closing velocity module (CVM).

Fault symptom[s] 

• Front monitoring/Active safety/City Safety does not work
• Text window and warning symbol/Text message