P0400

SYSTEM/WIRING DIAGRAM

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 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 to DLC with ignition switch OFF
2. Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool and warm up engine completely.
3. Increase vehicle speed to 55 - 60 km/h (35-40 mph).
4. keep driving above vehicle speed for 7 min. or more.
5. Increase vehicle speed to 100 - 110 km/h (60 - 70 mph).
6. Release accelerator pedal and with engine brake applied, keep vehicle coasting and then stop vehicle.
7. Check if pending DTC exists by using scan tool. If not, check if EGR system monitoring test has completed by using scan tool. If not in both of above checks (i.e., no pending DTC and EGR system monitoring test not completed), check vehicle conditions (environmental) and repeat Steps 3) through 6).

Steps 1 - 8:

TROUBLESHOOTING