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 5 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 parameters
This function can be used to read off the values and status of parameters from the driver information module (DIM).
For more information on the different parameters, see Vehicle communication information under Specifications, other.

Activations of components and functions
Use this option to activate components / functions in the driver information module (DIM).
For more information on activations, see Vehicle communication information under Specifications, other.

Programming control module
Use this function to program customer parameters in the driver information module (DIM).
For further information about programmed values, see Vehicle communication under Specifications, other.

Reading off the control module identification
The diagnostic tool 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.