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.

Fig 1: Identifying High Level Display Front (HLDF)

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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