Diagnostic trouble code (DTC) information
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.
Condition
The control module performs a function test of the leak diagnostic system. Diagnostic trouble code (DTC) ECM-66 is stored if the movement of the membrane in the leak diagnostic pump from active position to resting position is too slow. For further information about leak diagnostics, see Leak diagnostic .
Substitute Value
Leak diagnostics disabled.
Possible Source
- Blocked filter between the leak diagnostic pump and the EVAP canister
- Blocked hose between the leak diagnostic pump and the EVAP canister
- Blocked hose between the EVAP canister and the fuel tank
- Defective leak diagnostic pump.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.