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Home >> Kia >> 2012 >> Optima LX, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Automatic Transaxle Diagnosis) >> DTC P0721: Output Speed Sensor Circuit Range/Performance >> Inspection/Repair >> Component Inspection >> Notes
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Component Inspection: Notes

WARNING: This page is about a different car, the 2013 Kia Sportage and 2012 Kia Sportage. However, it is still accessible from the selected car via links, so may be relevant.

■ Output speed sensor waveform Inspection 

  1. Connect "A/T solenoid valve" connector and GDS to Data Link Connector (DLC).
  2. Engine ON and operate Input speed sensor.
  3. Measure waveform between signal of Output speed sensor harness and chassis ground.

    Specification:  See specification waveform

    Fig 1: Measuring Waveform Between Signal Of Output Speed Sensor Harness & Chassis Ground
    G07423039Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: PCM/TCM & ATM Solenoid Valve Connector End View
    G07423040Courtesy of KIA MOTORS AMERICA, INC.
  4. Is the measured waveform within specifications?

    YES 

    • Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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