P0451

DTC P0451: Evaporative Emission Control System Pressure Sensor Range / Performance

Wiring Diagram:

Wiring Diagram

DTC Detecting Condition:

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure

WARNING:
- When performing a road test, select a place where there is no traffic or possibility of a traffic accident and very careful during testing to avoid occurrence of an accident.
- Road test should be carried out with 2 persons, a driver and tester, on a level road.

NOTE: Check to make sure that the following conditions are satisfied when using this DTC Confirmation Procedure.
- Intake air temp.: 14 °C, 6.8 °F or higher.
- Altitude (barometric pressure): 2500 m, 8202 ft or less (560 mmHg, 75 kPa or more).

1. With ignition switch turned OFF, connect scan tool.
2. Turn ON ignition switch and clear DTC using scan tool.
3. Start engine and warm up to normal operating temperature.
4. Drive vehicle at 40 mph 60 km/h or more for 5 min. or more.
5. Stop vehicle and check DTC and pending DTC.

Step 1 - 5:

Step 6 - 9:

Step 10 - 14:

Step 15 - 17:

DTC Troubleshooting

WARNING: In order to reduce risk of fire and personal injury, this work must be performed in a well ventilated area and away from any open flames such as gas hot water.