October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Diagnostic trouble codes (DTCs)

If the control module detects a fault, a diagnostic trouble code (DTC) is set. Any fault detected during the last run cycle is defined as permanent. Other faults are defined as intermittent. A run cycle comprises ignition on, the car speed exceeding 10 km/h (20 km/h in XC90 with B8444S engine) and ignition off.