DTC P0455: Notes
DTC P0455 [AJ] DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0455 |
EVAP control system leak detected (large leak) |
| DETECTION CONDITION |
- The PCM measures the pump load current (EVAP line pressure) when the specified period has passed after the EVAP system is sealed when the monitoring conditions are met. If the load does not reach the reference current value within the specified period, the PCM determines that the EVAP system has a large leak.
MONITORING CONDITION
- Ignition 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%
Diagnostic support note
- This is an intermittent monitor (Evaporative 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.
- DIAGNOSTIC MONITORING TEST RESULTS is available.
- FREEZE FRAME DATA is available.
- 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
- EVAP hose damaged or loose
- Fuel tank malfunction
- Charcoal canister malfunction
- Poor connection or damaged vacuum hose
- PCM malfunction
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