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Home >> Ford >> 2009 >> Taurus X SEL, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P0315 - Crankshaft Position System Variation Not Learned

DTC P0315 - Crankshaft Position System Variation Not Learned

DTC 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: 
  • Damaged crankshaft pulse wheel teeth
  • Damaged crankshaft position (CKP) sensor
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 - - GO to Pinpoint Test HD .