P0315 - Crankshaft Position System Variation Not Learned.
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
P0315 - CRANKSHAFT POSITION SYSTEM VARIATION NOT LEARNED.
| Description: | The powertrain control module (PCM) is unable to learn and correct for mechanical inaccuracies in crankshaft pulse wheel tooth spacing. This DTC disables the misfire monitor. | |||
| Possible Causes: |
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| Diagnostic Aids: | Requires visual inspection of the CKP sensor and the crankshaft pulse wheel teeth for damage. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | - | - | refer to PINPOINT TEST HD . | |