S60 L5-2.4L VIN 64 B5244S6 (2003)
The control unit has built-in diagnostics, Volvo Diagnostics, which continually monitor the unit and the input and output signals.
Diagnostic trouble codes
If the control unit detects a fault, it stores a diagnostic trouble code. If, for any reason, a fault disappears after the diagnostic trouble code has been
permanently stored in the control unit, information about the trouble code still remains in the control unit.
Reading and erasing diagnostic trouble codes
Stored diagnostic trouble codes can be read from the control unit using this facility.
Diagnostic trouble codes may be erased but only after they have been read at least once.
Reading Input And Output Signals
Status of control unit input and output signals can be continually read using this facility.
Reading the control unit identity
VADIS/VIDA identifies control units by reading the number of codes from the control unit memory. The codes contain information on the control unit
as follows:
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hardware component number (control units without software)
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software component number (control units without software)
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software component number
-
diagnostic software component number
Software downloading
New software can be downloaded into the control module for the Steering wheel angle sensor. When ordering software, the hardware and the software in
the car is compared to the Volvo central database. If the comparison is OK the software is downloaded to the control module. If the comparison between
the car and Volvo central database is not OK, the database is updated with the car configuration. When this is complete the software is downloaded.
