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Home >> Ford >> 2009 >> Taurus X SEL, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P0720: - Output Shaft Speed (OSS) Sensor Circuit

DTC P0720: - Output Shaft Speed (OSS) Sensor Circuit

DTC P0720: - OUTPUT SHAFT SPEED (OSS) SENSOR CIRCUIT

Description:  The OSS sensor inputs a signal to the powertrain control module (PCM) based on the speed of the output shaft of the transmission.
Possible Causes: 
  • OSS sensor circuit short to GND
  • OSS sensor circuit short to PWR
  • OSS sensor 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 .
Automatic Transmission Refer to the AUTOMATIC TRANSAXLE/TRANSMISSION - 5R55S Cooling Symptom Chart, Diagnostic Trouble Code (DTC) Index to continue diagnosis.