Diagnostic Trouble Code (DTC) Information HLDF-U042268

Condition

The control module continually supplies necessary information from the Central electronic module (CEM) via CAN communication. The control module checks the quality of the information from the Central electronic module (CEM).

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

Transmitting control module indicates a lower quality level of information than the High Level Display Front (HLDF) accepts.

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

Ignition switch position II.

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.

Fig 1: Identifying High Level Display Front (HLDF)

Courtesy of VOLVO CARS CORPORATION

Substitute Value

None.

Possible Source

Fault-trace in transmitting control module.

Fault symptom[s]

Information on the screen is not updated
No picture on the display