P0446

DTC P0446: EVAP Control System Vent Control Circuit

System Diagram:

System Diagram

Wiring Diagram:

Wiring Diagram

DTC Detecting Condition / Trouble Area:

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 be very careful during testing to avoid occurrence of an accident.
- Road test should be carried out with 2 persons, a driver and a 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.: -8 °C (18 °F) or higher
- Engine coolant temp.: -8 - 110 °C (18 - 230 °F)
- Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg (75 kPa) or more)

1. Connect scan tool with ignition switch OFF.
2. Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool and start engine.
3. Drive vehicle at 50 - 60 km/h (30 - 40 mph) till engine coolant temp. reaches 70 °C (158 °F) or higher.
4. stop vehicle and check DTC and pending DTC by using scan tool.

Step 1 - 5:

DTC Troubleshooting

WARNING: This work must be performed in a well ventilated area and away from any open flames such as gas hot water.