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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 753 (Engine Controls - Powertrain DTC Charts & Descriptions - CNG, Flex-Fuel & Gasoline) >> Diagnostic Trouble Code (DTC) Charts >> P0720 - Insufficient Input From The Output Shaft Speed Sensor

P0720 - Insufficient Input From The Output Shaft Speed Sensor

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P0720 - INSUFFICIENT INPUT FROM THE OUTPUT SHAFT SPEED SENSOR

Description:  The output shaft speed sensor inputs a signal to the PCM, based on the speed of the output shaft of the transmission. The PCM compares this signal with the signal of the VSS or TCSS and determines correct tire size and axle gear ratio.
Possible Causes: 
  • OSS sensor circuit short to GND.
  • OSS sensor circuit short to PWR.
  • OSS sensor circuit open.
  • Damaged OSS sensor.
  • Damaged PCM.
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 TJ: Output Shaft Speed (OSS) Sensor Introduction STEP 1
All Others - - All Automatic Transmissions go to the appropriate AUTOMATIC TRANSMISSION article.
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