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Home >> Kia >> 2016 >> Forte EX >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System Diagnosis >> DTC P0721: Output Speed Sensor Circuit Range/Performance >> DTC Inspection >> Monitor GDS Data

Monitor GDS Data

  1. Connect GDS to Data Link Connector (DLC).
  2. Ignition "ON" & Engine "ON".
  3. Select "Current Data  " mode and monitor "Input Speed (PG-A)", "Output Speed (PG-B)", "Shift Lever Switch", "Current Gear", "Engine RPM", "Vehicle Speed" parameter.
  4. Driving above 20 Km/h (12.4mi/h).

    Specification:  Increasing Gradually

    Fig 1: Screen Display - Current Data And Oscilloscope (P, N Range)
    G11799498Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: Screen Display - Current Data And Oscilloscope (R Range)
    G11799499Courtesy of KIA MOTORS AMERICA, INC.
    Fig 3: Screen Display - Current Data And Oscilloscope (D Range 1st Gear)
    G11799500Courtesy of KIA MOTORS AMERICA, INC.
    Fig 4: Screen Display - Current Data And Oscilloscope (D Range 1st Gear, Vehicle Speed=0)
    G11799501Courtesy of KIA MOTORS AMERICA, INC.
    Fig 5: Screen Display - Current Data And Oscilloscope (D Range 2nd Gear)
    G11799502Courtesy of KIA MOTORS AMERICA, INC.
    Fig 6: Screen Display - Current Data And Oscilloscope (D Range 3rd Gear)
    G11799503Courtesy of KIA MOTORS AMERICA, INC.
    Fig 7: Screen Display - Current Data And Oscilloscope (D Range 4th Gear)
    G11799504Courtesy of KIA MOTORS AMERICA, INC.
    Fig 8: Screen Display - Current Data And Oscilloscope (D Range 5th Gear)
    G11799505Courtesy of KIA MOTORS AMERICA, INC.
    Fig 9: Screen Display - Current Data And Oscilloscope (D Range 6th Gear)
    G11799506Courtesy of KIA MOTORS AMERICA, INC.
  5. Is measured "Output speed sensor" value within specification?

    YES 

    • Fault is intermittent caused by poor contact between PCM/TCM and Sensor, and DTC was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair as necessary and go to "VERIFICATION VEHICLE REPAIR " procedure.

    NO