P0400

WIRING DIAGRAM



CIRCUIT DESCRIPTION





DETECTING CONDITION AND POSSIBLE CAUSE





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.

1. Turn ignition switch OFF. Clear DTC with ignition switch ON, check vehicle and environmental condition for:
- Indication of fuel level meter in combination meter: 1/4 or more
- Altitude (barometric pressure): 2400m, 8000ft or less (56OmmHg, 75kPa or more)
- Ambient temp. : -10 C, 14°F or higher
- Intake air temp: 5O°C, 122°F or lower
2. Start engine and warm it up to normal operating temperature (70 - 110°C,158 - 23O°F) and run it at idle for 5 min.
3. Increase vehicle speed to 50 - 55mph, 80 - 88km/h in 5th gear or in "D" range.
4. Hold throttle valve at that opening position for 2 min. or longer.
5. Increase engine speed to 4000r/min. in 3rd gear or in "2" range.
6. Release accelerator pedal and with engine brake applied, keep vehicle coasting (fuel cut condition) until engine speed reaches 1500r/min.
7. Stop vehicle (don't turn ignition switch OFF) and confirm test results according to following "Test Result Confirmation Flow Chart."





Test Result Confirmation Flow Chart

�d���:

INSPECTION