RTI Diagnostic Functions

RTI diagnostic functions

General
The RTI control module has a built-in diagnostic system, the Volvo on-board diagnostic (OBD) system, which continuously monitors itself and the input and output signals.

Diagnostic trouble codes (DTCs)
A diagnostic trouble code (DTC) is stored if the RTI detects a fault. A fault which is detected in the latest driving cycle is defined as permanent. Other detected faults are defined as intermittent.

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 when all diagnostic trouble codes (DTCs) have been read at least once.

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