Diagnostic Trouble Code (DTC) Information Mmm-1000

Condition 

Fig 1: Identifying Multimedia Module (MMM)

Courtesy of VOLVO CARS OF NORTH AMERICA.

At start up, the multimedia module (MMM) runs an automatic memory check. The diagnostic trouble code (DTC) is stored if this check indicates that the internal memory of the unit is damaged or incorrect.

The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute Value 

• None.

Possible Source 

• Damaged or incorrect internal memory.

Fault symptom[s] 

• The multimedia system is not working.