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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 correctly seated
  • Harness intermittently short or open
  • Harness connector damaged
  • OSS sensor damaged, or not installed correctly
Diagnostic Aids:  Verify harness and connector integrity.
Verify correct installation of the OSS sensor.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Manual Transmission GO to PINPOINT TEST DP .
Automatic Transmission Refer to the appropriate Automatic Transmission, Pinpoint Test Output Shaft Speed Sensor to continue diagnosis.
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