Diagnostic trouble codes (DTCs)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
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.