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Home >> Hyundai >> 2007 >> Azera Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC Troubleshooting Procedures >> DTC P0442 EVAP. Emission System-Leak Detected (Small Leak) >> Monitor SCANTOOL Data

Monitor SCANTOOL Data

  1. Check DTC Status
    1. Connect scantool to Data Link Connector (DLC).
    2. IG "ON".
    3. Select "Diagnostic Trouble Codes (DTCs)" mode, and then Press F4 (DTAL) to check DTC's information from the DTCs menu
    4. Read "DTC Status" parameter.
      Fig 1: Scan Tool Display - DTC Title
      G05344870
    5. Is parameter displayed "Present fault"?

      YES 

      NO 

      • Go to " 2EVAP. Leakage Test" as below with scan tool.
  2. EVAP. Leakage Test
    1. Cool the vehicle down for about two hours to prevent misdiagnosis.
    2. Install scan tool and IG "ON" and then clear DTC.
    3. Select and press "EVAP. LEAKAGE TEST" mode in the scan tool.
    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].
      Fig 2: Scan Tool Display - EVAP LEAKAGE TEST
      G05345090
    6. Is the same DTC set after the EVAP. leakage test with scan tool?

      YES 

      • Go to "SYSTEM INSPECTION" procedure below.

      NO 

      • Repeat "EVAP. leakage test" with scan tool after cool the vehicle down sufficiently. If the same DTC isn't displayed after the test, it was intermittent fault. Go to "VERIFICATION OF VEHICLE REPAIR " procedure.