LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Genesis >> 2019 >> G70 2.0T Advanced, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System Diagnosis >> DTC P0721-00: Output Speed Sensor Circuit Range/Performance >> Component Inspection >> Input Speed Sensor Waveform Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Input Speed Sensor Waveform Inspection

  1. Connect "A/T solenoid valve" connector and GDS to Data Link Connector (DLC).
  2. Engine ON and operate Input speed sensor.
  3. Measure waveform between (output speed sensor signal) terminal of ATM solenoid harness connector and chassis ground.

    Specification:  See specification waveform

  4. Is the measured value within specifications?

    YES 

    • Fault might be intermittent caused by poor contact in the sensor's and/or ECU's connector or was repaired and ECU 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 

    • Carefully re-do this troubleshooting guide steps.
    • If problem still occurs, replace input speed sensor and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.