DTC Confirmation Procedure: Notes

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Never remove fuel filler cap during the DTC Confirmation Procedure.

NOTE:

If DTC P0455 is displayed with P1448, first perform trouble diagnosis for DTC P1448. (See DTC P1448: EVAP CANISTER VENT CONTROL VALVE ).
Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve properly.
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

TESTING CONDITION:

Perform "DTC WORK SUPPORT" when the fuel level is between 1/4 and 3/4 full, and vehicle is placed on flat level surface.
Open engine hood before conducting the following procedures.