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P0315 - Crankshaft Position System Variation Not Learned - DTC Chart

P0315 - CRANKSHAFT POSITION SYSTEM VARIATION NOT LEARNED - DTC CHART

For Neutral Profile Correction Using Scan Tool 
Description:  The PCM has not learned the crankshaft pulse wheel tooth spacing. This DTC disables the misfire monitor.
Possible Causes: 
  • PCM replacement
  • Internal PCM non-volatile random access memory (NVRAM) error
Diagnostic Aids:  Complete the Misfire Monitor Neutral Profile Correction procedure using the scan tool.
For All Others 
Description:  The 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 
Edge,
F-150,
Fiesta 1.0L,
Fiesta 1.6L GTDI,
Focus,
MKC,
Mustang,
Transit		 Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.
All others GO to Pinpoint Test HD .
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