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Home >> Kia >> 2012 >> Sorento SX, 4WD >> Repair and Diagnosis >> Transmission >> Transfer Case >> 4WD Control System Diagnosis >> DTC U0122: Lost Communication With Vehicle Dynamics Control Module >> Scantool Diagnostics >> Monitor Scantool Data

Monitor Scantool Data

  1. Connect scantool to Data Link Connector (DLC).
  2. Self-diagnose 4WD ECM with scantool.
  3. Check the change of each wheel speed sensor's value according to the change of vehicle speed. (Refer to Fig 1.
  4. If the sensor's value is stuck, self-diagnose VDC ECM with scantool. So if there are any DTCs related to the sensor, inspect it at first and check if the DTCs have been erased.
  5. In a case that there is no DTC, select "RPM" item among the service data. (Refer to Fig 2.
  6. Check the change of the sensor's value according to a vehicle's speed.

    Specification :  It varies according to a vehicle's speed.

    Fig 1: Screen Display - Wheel Speed Velocity (4WD)
    G07417203Courtesy of KIA MOTORS AMERICA, INC.
    Fig 2: Screen Display - Wheel Speed Sensor (VDC)
    G07417204Courtesy of KIA MOTORS AMERICA, INC.
  7. Is parameter displayed within specifications?

    YES 

    • Fault is intermittent caused by poor contact in the sensor's and/or ECM's connector or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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