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P0720 - Output Shaft Speed (OSS) Sensor Circuit

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P0720 - OUTPUT SHAFT SPEED (OSS) SENSOR CIRCUIT

Description:  This DTC sets when the OSS sensor signal input exceeds the calibrated threshold. The OSS sensor provides a signal to the PCM based on the speed of the output shaft of the transmission.
Possible Causes: 
  • OSS circuit short to ground
  • OSS circuit short to voltage
  • OSS circuit open
  • Damaged OSS sensor
Diagnostic Aids:  Verify the sensor signal output varies with the vehicle speed.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Manual Transmission GO to PINPOINT TEST DP: OUTPUT SHAFT SPEED (OSS) SENSOR/VEHICLE SPEED SENSOR (VSS) .
Automatic Transmission Refer to the Automatic Transmission, Diagnostic Trouble Code (DTC) Index to continue diagnosis.