Volvo Workshop Manuals
XC90 FWD L6-3.2L VIN 98 B6324S (2007)
Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Communications Control Module > Component Information > Description and Operation > Audio Module (AUD) > Page 159
Diagnostic trouble codes (DTCs)
If the control module detect a fault, a diagnostic trouble code (DTC) is stored. A fault that was detected during the last operating cycle is defined as
Reading and erasing diagnostic trouble codes (DTCs)
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.
Note! Certain functions are unavailable until the diagnostic trouble codes (DTCs) have been erased.
Reading off the parameters
This function is used to read the status or value of parameters. The status or value can be presented digitally.
Activating components and functions
This function can be used to activate components and functions that affect the multimedia module (MMM).
Reading off the control module identification
The diagnostic tool identifies control modules by reading off a number of codes from the control module memory.
hardware P/N (control module without software)
hardware serial number (control module without software)
diagnostic software P/N
Reading off extended fault-tracing information
This function can be used to read out parameters, identify status and counts stored at the same time as a diagnostic trouble code (known as frozen
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