Dtc Summary

DTC

Monitoring Items

Malfunction Detection Conditions

Trouble Areas

Detection Timings

Detecti on logic

P0455

EVAP gross leak

Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure measured. 0.02 inch leak criterion measured at start and at end of leak check. If stabilized pressure higher than [second 0.02 inch leak criterion x 0.2], ECM determines that EVAP system has large leakage.

• Leakage from EVAP line (Canister - Fuel tank)

• Leakage from EVAP line (Purge VSV - Canister)

• Canister pump module

• Leakage from fuel tank

• Leakage from canister

While ignition switch OFF

2 trip

P0456

EVAP small leak

Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure measured. 0.02 inch leak criterion measured at start and at end of leak check. If stabilized pressure higher than second 0.02 inch leak criterion, ECM determines that EVAP system has small leakage.

Same above

While ignition switch OFF

2 trip

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