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Home >> Kia >> 2016 >> Sedona LX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P0638: Throttle Actuator Control Range/Performance >> Wiring Inspection >> Control Circuit Inspection

Control Circuit Inspection

  1. IG "OFF" & Disconnect ETC Motor connector.
  2. IG "ON".
  3. Measure voltage between Pin No. 2 (High) terminal of ETC Motor harness connector and chassis ground.

    Measure voltage between Pin No. 1 (Low) terminal of ETC Motor harness connector and chassis ground.

    Specification: 

    ETC (+) - Approx 12V

    ETC (-) - Approx 0V

  4. Is the measured voltage within specification?

    YES 

    NO