DTC P0455: Notes
DTC P0455 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0455 |
Evaporative emission control system leak detected (gross leak) |
| DETECTION CONDITION |
- PCM measures the pump load current (EVAP line pressure) when the specified period has passed after the EVAP system is sealed when monitoring conditions are met. If the load does riot reach the reference current value within the specified period, the PCM determines that the EVAP system has a gross leak.
MONITORING CONDITION
- IG switch OFF
- IAT: 5-35°C {40-95°F}
- Battery voltage: 11 V or above
- Atmospheric pressure: 72.2 kPa {542 mmHg, 21.3 inHg} or above
- Fuel tank level: 15-85%
- Time from engine off: 5 h 10 min
Diagnostic support note
- This is an intermittent monitor (Evaporative emission system).
- 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.
- DTCs are stored in the PCM memory.
- DIAGNOSTIC MONITORING TEST RESULT is available.
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| POSSIBLE CAUSE |
- Purge solenoid valve malfunction
- EVAP system leak detection pump malfunction
- Loose, missing or defective fuel filler cap
- Charcoal canister malfunction
- Fuel tank malfunction
- EVAP hose damaged or loose
- Poor connection or damaged vacuum hose
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