DTC P0455: Notes
DTC P0455 DETECTION & CONDITION POSSIBLE CAUSES
| DTC P0455 |
EVAP system leak detected (large leak) |
| DETECTION CONDITION |
- The PCM monitors the pump load current (EVAP line pressure) when the specified period has passed after EVAP system is sealed when the following conditions are met. If the pump load current does not reach the reference current value within the specified period, the PCM determines that the EVAP system has a large leak.
MONITORING CONDITION
- BARO: more than 72 kPa {542 mmHg, 21.33 inHg}
- IAT: 5-40 °C {41-104 °F}
- Fuel tank level: 15-85%
- Battery voltage: 11.0-14.6 V
- Ignition switch: OFF
Diagnostic support note
- This is an intermittent monitor (EVAP system).
- The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
- PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle.
- FREEZE FRAME DATA is available.
- The DTC is stored in the PCM memory.
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| POSSIBLE CAUSE |
- Loose, missing or defective fuel-filler cap
- Purge solenoid valve malfunction
- EVAP system leak detection pump malfunction
- Fuel tank malfunction
- Poor connection or damaged vacuum hose
- EVAP hose damaged or loose
- Catch tank malfunction
- Charcoal canister malfunction
- PCM malfunction
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