DTC P0451 EVAP. Emission System-Pressure Sensor Range / Performance: DTC Detecting Condition
DTC DETECTING CONDITION CHART
| ITEM |
DETECTING CONDITION |
POSSIBLE CAUSE |
| DTC Strategy |
- Check signal oscillations
|
- Contact resistance in connectors
- Faulty FTPS
|
| Enable Conditions |
- Vehicle speed > 45km/h (28mph)
- Canister Purge Flow variation within 13 sec. > 1kg/h
- Minimum Tank Pressure Signal Voltage > 0.32V
- Ambient air temperature model > -10°C (14°F)
- No relevant failure
- 11 < Battery voltage < 16V
|
| Threshold Value |
- Difference between max./min. voltage < 15 mV
|
| Diagnostic Time |
|
| Fail Safe |
- EVAP. System monitoring is inhibited
- Fuel Tank Pressure Sensor monitoring is inhibited
- Canister close valve monitoring is inhibited
|