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Home >> Hyundai >> 2014 >> Equus Ultimate >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission 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 "Output speed sensor (PG-B)" parameter.
  4. Driving above 20 Km/h.

    Specification:  Increasing Gradually

    Fig 1: Display - Output Speed Sensor (PG-B) (Low Speed)
    G09793780Courtesy of HYUNDAI MOTOR AMERICA
    Fig 2: Display - Output Speed Sensor (PG-B) (High Speed)
    G09793781Courtesy of HYUNDAI MOTOR AMERICA
  5. Is measured "Output speed sensor" value within specification?

    YES 

    • Fault is intermittent caused by poor contact between 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 OF VEHICLE REPAIR " procedure.

    NO 

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