Diagnostic trouble code (DTC) information ECM-434C
Condition
If no fault has been detected in the leak diagnostic unit, the engine control module (ECM) carries out a leak diagnostic of the fuel tank system. The diagnostic trouble code (DTC) is stored if the engine control module (ECM) detects a leak which is 0.5-1.0 mm.
For further information about leak diagnostics, see VIDA Design and Function.
Substitute Value
None.
Possible Source
- A leak that is 0.5-1.0 mm or smaller in the fuel tank, fuel filler pipe, fuel tank filler cap, EVAP canister, evaporative emission system (EVAP) valve, or in the hoses between these components.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.