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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 correctly
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 refer to PINPOINT TEST DP .
All others Refer to the appropriate AUTOMATIC TRANSMISSION/TRANSAXLE article.
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