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Home >> Ford >> 2018 >> Mustang GT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 65 (Automatic Transmission - 6-Speed Automatic Transmission - 6F50/6F55 (2 Of 2)) >> Diagnosis And Testing >> Automatic Transmission - 3.5L Duratec (212kW/278PS) >> Pinpoint Tests >> Pinpoint Test L : OSS (Output Shaft Speed) Sensor >> Notes

Pinpoint Test L : OSS (Output Shaft Speed) Sensor: Notes

WARNING: This page is about a different car, the 2018 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

OSS Sensor 

Refer to Transmission Controls - 6F50/6F55 for schematic and connector information.

Normal Operation 

The OSS sensor is a Hall-effect sensor that sends a signal to the PCM that indicates transmission output shaft speed. The OSS sensor is used for TCC control and shift scheduling.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
P0720 Output Shaft Speed Sensor Circuit No input from the OSS sensor.
P0721 Output Shaft Speed Sensor Circuit Range/Performance Unrealistic change in the OSS sensor signal, erratic or intermittently no input.
P0722 Output Shaft Speed Sensor Circuit No Signal No input from the OSS sensor.

Possible Sources 

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