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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 125 (Engine Control System Diagnosis (1 Of 2) (HEV)) >> DTC P0077: Intake Valve Control Solenoid Circuit-High (Bank 1) >> Component Inspection

Component Inspection

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  1. Ignition "OFF".
  2. Disconnect oil control valve connector.
  3. Measure resistance between power terminal and control terminal of the solenoid connector (Component side).
    TEMPERATURE RESISTANCE SPECIFICATION

    Temp.(°C) Temp.(°F) Resistance(Ω) Temp.(°C) Temp.(°F) Resistance(Ω)
    0 32 6.2 ~ 7.4 60 140 8.0 ~ 9.2
    10 50 6.5 ~ 7.7 70 158 8.3 ~ 9.5
    20 68 6.9 ~ 7.9 80 176 8.6 ~ 9.8
    30 86 7.1 ~ 8.3 90 194 8.9 ~ 10.1
    40 104 7.4 ~ 8.6 100 212 9.2 ~ 10.4
    50 122 7.7 ~ 8.9      
    Fig 1: Measuring Resistance Between Power Terminal And Control Terminal Of Solenoid Connector (Component Side)
    G10606352Courtesy of HYUNDAI MOTOR AMERICA
  4. Is resistance within specification?

    YES 

    • Go to next step as below.

    NO 

    • Check oil control valve for contamination, deterioration, or damage. Substitute with a known-good solenoid and check for proper operation. If the problem is corrected, replace solenoid and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.