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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2090 (Engine Controls - Powertrain DTC Charts And Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> P0720 - Output Shaft Speed (OSS) Sensor Circuit

P0720 - Output Shaft Speed (OSS) Sensor Circuit

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
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   - - refer to PINPOINT TEST DP .
Automatic Transmission   Refer to the AUTOMATIC TRANSAXLE/TRANSMISSION - 4R70E/4R75E -- E-SERIES .
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