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Home >> Ford >> 2011 >> Focus S, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions - DTC P0218 Through DTC P0581 - (Except Diesel & Hybrid) >> DTC P0315: Crankshaft Position System Variation Not Learned

DTC P0315: Crankshaft Position System Variation Not Learned

P0315 - CRANKSHAFT POSITION SYSTEM VARIATION NOT LEARNED

For Profile Correction Learning During Drive Cycle 
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.
For Neutral Profile Correction Using Scan Tool 
Description:  The powertrain control module (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.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Crown Victoria,
Edge,
Escape/Mariner,
E-Series,
Expedition,
Explorer,
F-150 3.5L,
F-150 3.7L,
F-150 6.2L,
Fiesta,
Flex,
Focus,
F-Series Super
Duty,
Fusion,
Grand Marquis,
Milan,
MKS,
MKT,
MKX,
MKZ,
Navigator,
Ranger,
Taurus,
Town Car,
Transit Connect		 GO to PINPOINT TEST HD .
F-150 5.0L,
Mustang		 Refer to the Description, Possible Causes and Diagnostic Aids for the DTC in table.
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