Scantool Diagnostics

Engine Control

P0442 Evaporative Emission System-Leak detected (small leak) - Scantool Diagnostics

Monitor GDS Data

Check DTC Status
1. Connect GDS to 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. Install GDS and IG "ON" and then clear DTC.
3. Select and press "EVAP. LEAKAGE TEST" mode in the GDS.
4. Check if the vehicle is under test conditions as below [Fig 1].
5. If OK, Start engine and restart Evap. Leakage Test again[Fig 2].








6. Is the same DTC set after the Evap. leakage test with GDS?