DTC P0109: Manifold Absolute Pressure (Map)/Barometric Pressure (BARO) Sensor Intermittent
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2010 Mercury Mountaineer, 2010 Mercury Milan, 2010 Mercury Mariner, 2010 Mercury Grand Marquis, and 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0109: MANIFOLD ABSOLUTE PRESSURE (MAP)/BAROMETRIC PRESSURE (BARO) SENSOR INTERMITTENT
| Description: | The sensor signal to the powertrain control module (PCM) is failing intermittently. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check the harness and connection. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| Flex GTDI, MKS 3.5L, MKT 3.5L, Taurus GTDI |
GO to PINPOINT TEST DN . | ||
| All others | GO to PINPOINT TEST DM . | - | - |