Erasing diagnostic trouble codes (DTCs) and resetting adaptive functions
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
It is important both that diagnostic trouble codes (DTCs) are erased and adaptive functions are reset when the engine control module (ECM) is replaced or when remedying diagnostic trouble codes (DTCs) EFI-231, EFI-232 and EFI-233. If this is not done the car may run poorly despite an absence of faults. This can be carried out in two ways:
- Diagnostic trouble codes (DTCs) are erased and adaptation reset separately. Reset adaptive functions
NOTE:
If using the engine control module (ECM) from another car, diagnostic trouble codes (DTCs) (if any) must be erased and adaptive functions reset as described above before engine control module (ECM) is reinstalled in car.