Infotainment Control Module (ICM)

Infotainment Control Module (ICM)

Diagnostic functions

General
The control module has a built-in diagnostic system, Volvo Diagnostic, which monitors internal functions as well as input and output signals.

Diagnostic trouble codes (DTCs)
A diagnostic trouble code (DTC) is stored if the control module detects a fault. This control module can store up to six diagnostic trouble codes (DTCs), the three first and the three latest.

If a fault disappears for any reason after the diagnostic trouble code (DTC) has been permanently stored in the control module, information about the fault remains in the control module.

Reading and erasing diagnostic trouble codes (DTCs)
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function. The on-board diagnostic (OBD) system can identify 35 different faults in the infotainment control module (ICM). These are stored as diagnostic trouble codes (DTCs). This function can also be used to read off whether the fault is still present (permanent) or whether it has now ceased (intermittent) after the diagnostic trouble code (DTC) has been stored.

Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.

Reading off the parameters
Using this function, the status or value of parameters can be read off. The presentation of the status or value can be obtained graphically or digitally.

Activating components and functions
This function can be used to activate components/functions which affect the infotainment control module (ICM).

Reading off static data
This function allows programmed data to be read off or data such as customer parameters to be programmed in.

Reading off the control module identification
VIDA identifies control modules by reading off a number of codes from the control module memory.
The codes contain information about the control module:
- hardware P/N (control module without software)
- hardware serial number (control module without software)
- software P/N
- diagnostic software P/N.

Reading off extended fault-tracing information
This function can be used to read parameters, status identifiers and counters stored at the same time as a diagnostic trouble code (DTC). These are called frozen values.