Diagnostic Trouble Code (DTC) Information ICM-1A53

Condition 

Fig 1: Identifying Multimedia Module (MMM)

Courtesy of VOLVO CARS CORPORATION

The infotainment control module (ICM) checks the communication with the multimedia module (MMM).

The diagnostic trouble code (DTC) is stored if the infotainment control module (ICM) registers a fault in the communication with the multimedia module (MMM).

The diagnostic trouble code (DTC) can be diagnosed with the ignition on and the battery voltage above 11 V.

Substitute Value 

• None.

Possible Source 

• Internal fault in the multimedia module (MMM)
• No multimedia module (MMM).

Fault symptom[s] 

• The navigation buttons on the steering wheel do not function.
• No voice message.