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Home >> Kia >> 2007 >> Magentis 2.4 3 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System >> DTC P0721 Output Speed Sensor Circuit Range/Performance >> Ground Circuit Inspection
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Ground Circuit Inspection

  1. Ignition "ON" & Engine "OFF".
  2. Disconnect the "OUTPUT SPEED SENSOR" connector.
  3. Measure resistance between terminal "1" of the OUTPUT SPEED SENSOR harness connector and chassis ground.

    Specification: approx. 0 Ω

    Fig 1: Identifying Output Speed Sensor And Sensor Ground
    G04805107Courtesy of KIA MOTORS AMERICA, INC.
  4. Is resistance within specification?

    YES  : --> Go to "COMPONENT INSPECTION " procedure.

    no  : --> Check for open in harness. Repair as necessary and Go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    --> If ground circuit in harness is OK, Go to  2 "Check TCM (PCM)" of the "Component Inspection" procedure.