Diagnostic Functions

Diagnostic functions

General
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously 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. The driver information module (DIM) can store up to 10 diagnostic trouble codes (DTCs).
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.
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 parameter values
This function can be used to read off the values and status of parameters from the driver information module (DIM).
For further information about the different parameters, see: Description of parameters Description of Parameters

Activating components and functions
Use this option to activate components / functions in the driver information module (DIM).
For further information about activations, see: Description of component / functions activation Description of Component / Functions Activation

Programming customer parameters
Use this function to program customer parameters in the driver information module (DIM).
For further information, see: Description of the programmed values Description of the Programmed Values

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.