Scantool Diagnostics

Engine Control

P0456 Evaporative Emission System-Leak detected (very small leak) - Scantool Diagnostics

Monitor Scantool Data

1. Connect GDS to the Data Link Connector (DLC).
2. IG "ON".
3. Select "DTC" button, and then Press "DTC Status" to check DTC's information from the DTCs menu.
4. Read "DTC Status" parameter.




5. Is parameter displayed "Present fault"?





EVAP Leakage Test:
1. Cool the vehicle down for about two hours to prevent misdiagnosis.
2. IG "ON". Connect the GDS and clear DTC(s).
3. Select and press "EVAP Leakage Test".
4. Confirm that the vehicle is under test conditions as below. (Fig.1)
5. Start engine and restart "EVAP Leakage Test". (Fig.2)








Fig.1) EVAP Leakage Test Condition
Fig.2) EVAP Leakage Test Start
6. Does DTC P0456 set after the "EVAP Leakage Test"?