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HOMESERVICE MANUALSHYUNDAI2011EQUUS SIGNATUREREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 3)DTC P0081: INTAKE VALVE CONTROL SOLENOID CIRCUIT (BANK 2)INSPECTION/REPAIRCOMPONENT INSPECTION
2011 Hyundai Equus Signature

Component Inspection

2011 Hyundai Equus SignatureSECTION Component Inspection
  • Check OCV resistance 
    1. IG "OFF" and disconnect OCV connector.
    2. Measure resistance between power and signal terminals of OCV. (Component Side)

      Specification:  6.7 ~ 7.7 Ω

      Fig 1: Measuring Resistance Between Power And Signal Terminals Of OCV
      G07305658Courtesy of HYUNDAI MOTOR CO.
    3. Is the measured resistance within specification?

      YES 

      • Go to "OCV Actuation Test  " as follows.

      NO 

      • Substitute with a known - good OCV and check for proper operation. If the problem is corrected, replace OCV and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  • OCV Actuation Test 
    1. Connect GDS and IG "ON".
    2. Select "OIL CONTROL VALVE" on the Actuation Test.
    3. Activates "OIL CONTROL VALVE" by pressing "START" button.

      (Should hear a faint click from Oil Control solenoid Valve)

    4. Repeat this procedure 4 or 5 times to ensure oil control solenoid valve reliability.
      Fig 2: Screen Display - Actuation Test
      G07305659Courtesy of HYUNDAI MOTOR CO.
    5. Does OCV generate click sound during actuation test?

      YES 

      • Substitute with a known - good ECM and check for proper operation. If the problem is corrected, replace ECM and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

      NO 

      • Substitute with a known - good OCV and check for proper operation. If the problem is corrected, replace OCV and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
RENDER: 1.0x

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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.