DTC P1309: Misfire Monitor Disabled
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
P1309 - MISFIRE MONITOR DISABLED
| Description: | When the misfire monitor is disabled, usually due to the input signal generated by the camshaft position (CMP) sensor, by sensing the passage of teeth from the CMP wheel. | ||
| Possible Causes: |
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| Diagnostic Aids: | Verify the CMP sensor is installed correctly and is not out of synchronization. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | - | - | GO to HD: Misfire Detection Monitor STEP HD30. |