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P0109 - Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Intermittent

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DTC DESCRIPTION P0109 - MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE SENSOR CIRCUIT INTERMITTENT

Description:  This DTC sets when the manifold absolute pressure (MAP) sensor signal is intermittent.
Possible Causes: 
  • MAP circuit intermittent open
  • MAP circuit intermittent short to voltage
  • MAP circuit intermittent short to ground
  • Damaged MAP sensor
  • Incorrect harness connections
Diagnostic Aids:  Check the harness and connection.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DM.