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Home >> Kia >> 2016 >> Sedona L >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System Diagnosis >> DTC P0721: Output Speed Sensor Circuit Range/Performance >> DTC Inspection >> Monitor GDS Data
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Monitor GDS Data

  1. Ignition "OFF".
  2. Connect GDS to Data Link Connector (DLC).
  3. Refer to "SPECIAL SERVICE TOOLS " and lift vehicle with suitable lift.
  4. Engine "ON".
  5. Place gear lever position to "D" and Turn "OFF" TCS/ESC (ESP) system.
  6. Monitor "Input Speed (PG-A)", "Shift Lever Switch", "Vehicle Speed" and "Engine RPM" parameter in "Current Data"  with GDS.

    Specification:  Refer to Fig 1 below

    Fig 1: Screen Display - Output Speed And Vehicle Speed Data When Driving On Lift
    G11853351Courtesy of KIA MOTORS AMERICA, INC.
  7. Is displayed parameter within specification?

    YES 

    • Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Go to next procedure.
  8. Ignition "OFF".
  9. Refer to "AUTOMATIC TRANSAXLE CONTROL SYSTEM " and remove necessary parts to get access to ATM Solenoid connector and lift vehicle with suitable lift.
  10. Engine "ON".
  11. Back probe and measure signal waveform between Pin No. 8 (Signal) terminal of ATM Solenoid harness connector and chassis ground.

    Specification:  High - Approx. 1.5 V/Low - Approx. 0.7 V (Refer to Fig 2 below)

    Fig 2: Screen Display - Input Speed And Output Speed Data And Signal Waveform At Engine ON, Gear Lever Position At P/N
    G11853352Courtesy of KIA MOTORS AMERICA, INC.
    Fig 3: Screen Display - Input Speed And Output Speed Data And Signal Waveform At Engine ON, Gear Lever Position At R And No Brake Pedal Applied
    G11853353Courtesy of KIA MOTORS AMERICA, INC.
    Fig 4: Screen Display - Input Speed And Output Speed Data And Signal Waveform At Engine ON, Gear Lever Position At R And No Brake Pedal Applied
    G11853354Courtesy of KIA MOTORS AMERICA, INC.
    Fig 5: VMI Probe To Measure Input/Output Speed Sensor Signal Waveform
    G11853355Courtesy of KIA MOTORS AMERICA, INC.
  12. Is measured value within specification?

    YES 

    • Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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