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Last Modified: 9-16-2014 6.6 C Doc ID: RM000000SWH0CIX Model Year: 2015 Model: Tundra Prod Date Range: [08/2014 - ] Title: 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0455,P0456; Evaporative Emission Control System Leak Detected (Gross Leak); 2015 MY Tundra [08/2014 - ] DTC P0455 Evaporative Emission Control System Leak Detected (Gross Leak) DTC P0456 Evaporative Emission Control System Leak Detected (Very Small Leak) DTC SUMMARY DTC NO. MONITORING ITEM MALFUNCTION DETECTION CONDITION TROUBLE AREA DETECTION TIMING DETECTION LOGIC P0455 EVAP gross leak Leak detection pump creates negative pressure (vacuum) in EVAP system and EVAP system pressure measured. Reference pressure If stabilized pressure higher than [second reference pressure x 0.2], ECM determines that EVAP system has large leak. Fuel tank cap (loose) Leak from EVAP line (Canister - Fuel tank) Leak from EVAP line (Purge VSV - Canister) Canister pump module Leak from fuel tank Leak 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. Reference pressure If stabilized pressure higher than second reference pressure, ECM determines that EVAP system has small leak. Fuel tank cap (loose) Leak from EVAP line (Canister - Fuel tank) Leak from EVAP line (Purge VSV - Canister) Canister pump module While ignition switch off 2 trip 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0455,P0456;... |