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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 P0721: Output Speed Sensor Circuit Range/Performance >> W/Harness Inspection >> Power Circuit Inspection

Power Circuit Inspection

WARNING: This page is about a different variant/trim than selected.
  1. IG KEY "ON" & Engine "OFF".
  2. Disconnect "ATM solenoid valve" connector.
  3. Measure voltage between power of output speed sensor connector and chassis ground.

    Specification:  Approx. 7.6V

    Fig 1: Measuring Voltage Between Power Of Output Speed Sensor Connector And Chassis Ground
    G10603462Courtesy of HYUNDAI MOTOR AMERICA
    Fig 2: Identifying Input And Output Speed Sensor Connector Terminals
    G10603463Courtesy of HYUNDAI MOTOR AMERICA
  4. Is the measured voltage within specifications?

    YES 

    NO