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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Engine Control System Diagnosis - 1.6L (2 Of 3) (Except HEV)) >> DTC P0442: Evaporative Emission System-Leak Detected (Small Leak) >> DTC Inspection >> Monitor GDS Data

Monitor GDS Data

WARNING: This page is about a different variant/trim than selected.
  1. 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 follows.
    Fig 1: Scantool Display - EVAP Leakage Test
    G11991242Courtesy of HYUNDAI MOTOR AMERICA
  5. Is the same DTC set after the Evap.leakage test with GDS?

    YES 

    NO 

    • Repeat "Evap.leakage test" with GDS 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.
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