P2404

DTC P2404

DTC Detecting Condition and Trouble Area






Wiring Diagram

Refer to P0449 DTC P0449.

System Description

Refer to EVAP Leak Check System Description EVAP Leak Check System Description.

System Diagram





DTC Confirmation Procedure

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

- Select a level road with no traffic to minimize the risk of accident.
- Perform the test extremely carefully.
- Perform the road test using 2 persons, a driver and an assistant.

NOTE:

- If DTCs other than aimed DTC are previously detected in DTC confirmation procedure, be sure to troubleshoot DTC previously detected.
- Check that the following conditions are satisfied when using this procedure.

- 4.4 °C (39.9 °F) < ECT < 50 °C (122 °F)

- 4.4 °C (39.9 °F) < IAT < 50 °C (122 °F)

- BARO > 75 kPa (0.8 kgf/cm2, 10.8 psi, 0.75 bar)

- Fuel level < 85%


1) Warm up engine to normal operating temperature.
2) Drive vehicle for 40 km/h (25 mile/h) for 15 min.
3) Turn ignition switch to OFF position for 6 hours.

DTC Troubleshooting

1.
Was "Engine and Emission Control System Check" performed?
YES -
Go to Step 2.
NO -
Go to Engine and Emission Control System Check Engine and Emission Control System Check.

2. DTC check

Check DTC.

Is there DTC(s) other than P2404?
YES -
Go to applicable DTC(s).
NO -
Go to Step 3.

3. EVAP leak detection pump circuit check

Check EVAP leak detection pump circuit according to Step 3 through 4 under P2400 DTC P2400.

Are they in good condition?
YES -
Go to Step 7.
NO -
Repair or replace defective wire harness.

4. EVAP vent valve circuit check

Check EVAP vent valve circuit according to Step 2 through 3 under P0449 DTC P0449.

Are they in good condition?
YES -
Go to Step 5.
NO -
Repair or replace defective wire harness.

5. EVAP leak check module check

Check EVAP leak detection pump, EVAP vent valve and EVAP leak check pressure sensor for operation. Testing and Inspection

Are they in good condition?
YES -
Go to Step 6.
NO -
Replace EVAP leak check module.

6. Wire harness check

Turn OFF ignition switch.
Check for proper terminal connection to EVAP leak check module and ECM connectors.
If connections are OK, recheck DTC.

Is DTC P2404 detected again?
YES -
Substitute a known-good ECM and recheck.
NO -
Intermittent trouble.