Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Testing Condition
- Open engine hood before conducting following procedure .
- If any of following conditions are met just before the DTC confirmation procedure, leave the vehicle for more than 1 hour
.
- Fuel filler cap is removed .
- Fuel is refilled or drained .
- EVAP component part is/are removed .
- Before performing the following procedure, confirm that battery voltage is more than 11V at idle .
With CONSULT-II
- Turn ignition switch ON and select DATA MONITOR mode with CONSULT-II.
- Make sure the following conditions are met.
FUEL LEVEL SE: 0.25 - 1.4V
COOLAN TEMP/S: 0 - 32° C (32 - 90° F)
FUEL T/TMP SE: 0 - 35° C (32 - 95° F)
INT A/TEMP SE: More than 0° C (32° F)
If NG, turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle) or refilling/draining fuel until the output voltage condition of the FUEL LEVEL SE meets within the range above and leave the vehicle for more than 1 hour. Then start from step 1).
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Select EVAP V/S LEAK P0456/P1456 of EVAPORATIVE SYSTEM in DTC WORK SUPPORT mode with CONSULT-II
Follow the instruction displayed.
- Make sure that OK is displayed.
If NG is displayed, Refer to DIAGNOSTIC PROCEDURE .
- If the engine speed cannot be maintained within the range displayed on CONSULT-II screen , go to BASIC INSPECTION .
- Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve properly .
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.