DTC P1900: Output Shaft Speed (OSS) Sensor Circuit Intermittent

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P1900 - OUTPUT SHAFT SPEED (OSS) SENSOR CIRCUIT INTERMITTENT

Description:	The OSS sensor signal to the powertrain control module (PCM) is irregular or interrupted.
Possible Causes:	Harness connector not properly seated Harness intermittently shorted or open Harness connector damaged OSS sensor damaged, or not installed properly
Diagnostic Aids:	Verify harness and connector integrity. Verify proper installation of the OSS sensor.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
Manual transmission, Focus, Freestar/Monterey, LS, Sable, Taurus, Thunderbird, Town Car	GO to TJ: Output Shaft Speed (OSS) Sensor STEP TJ1.
All others	Refer to AUTOMATIC TRANSMISSION .