Checking diagnostic trouble codes (DTCs)
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.
- Test drive the vehicle for at least 10 minutes at a constant speed and throttle opening
- Allow the engine to idle for at least 5 minutes.
- Read off diagnostic trouble codes (DTCs)
- Check whether the diagnostic trouble code (DTC) status changes to intermittent
Has the diagnostic trouble code (DTC) status switched to intermittent?
- YES
VERIFIED: Troubleshooting has been completed.
- NO
Refer to Information