Dtc Summary

DTCs

Monitoring Items

Malfunction Detection Conditions

Trouble Areas

Detection Timings

Detection Logic

P2419

Vent valve stuck closed

Leak detection pump creates negative pressure through reference orifice and EVAP system pressure measured to determine leak criterion. If system pressure higher than -1.06 kPa (-7.95 mmHg)* 4 seconds after leak detection pump turned ON, ECM determines that vent valve stuck closed.

• Canister pump module

• Connector/wire harness (Canister pump module -ECM)

• ECM

While ignition switch OFF

2 trip

P2420

Vent valve stuck open (vent)

Leak detection pump creates negative pressure through reference orifice and EVAP system pressure measured to determine leak criterion. 0.02 inch leak criterion measured at start and at end of leak check.

If system pressure does not increase by more than 0.3 kPa (2.25 mmHg) within 10 seconds when vent valve turned ON, ECM determines that vent valve stuck closed.

• Canister pump module

• Connector/wire harness (Canister pump module -ECM)

• Leakage from EVAP system

While ignition switch OFF

2 trip

: The threshold value varies according to the atmospheric pressure measured in operation A. The value described above is based on an atmospheric pressure of 100 kPa (750.1 mmHg): absolute pressure. HINT:

The vent valve is built into the canister pump module. DESCRIPTION

The circuit description can be found in the EVAP System (See page ES-351). Refer to the EVAP System (See page ES-351).

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