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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 65 (Automatic Transaxle System Diagnosis (HEV)) >> DTC P0712: Transmission Fluid Temperature Sensor 'A' Circuit Low Input >> W/Harness Inspection >> Signal Circuit Inspection

Signal Circuit Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect an Oil temperature sensor connector.
  2. IG KEY "ON"" & Engine "OFF".
  3. Measure voltage between signal of Oil temperature sensor circuit and chassis ground.

    Specification:  Approx. 3.3V

    Fig 1: Measuring Voltage Between Signal Of Oil Temperature Sensor Circuit And Chassis Ground
    G10603411Courtesy of HYUNDAI MOTOR AMERICA
  4. Is the measured voltage within specifications?

    YES 

    NO 

    • Check a battery short circuit or a ground short circuit at the wiring of Oil temperature sensor and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.