Checking diagnostic trouble codes (DTCs) after test driving the car
WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.
Check that no diagnostic trouble codes (DTCs) have been stored. Remedy and erase diagnostic trouble codes (DTCs).