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Home >> Mazda >> 2014 >> CX-9 Touring, 3.7L Eng VIN A, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (2 Of 4) >> DTC P0315: CKP System Variation Not Learned >> Notes

DTC P0315: CKP System Variation Not Learned: Notes

DTC P0315 CHART (MZI-3.7)

DTC P0315 CKP system variation not learned
DETECTION CONDITION 
  • The PCM is unable to learn and correct for mechanical inaccuracies in the crankshaft pulse wheel tooth spacing. This DTC disables the misfire monitor.
POSSIBLE CAUSE 
  • Crankshaft pulse wheel teeth malfunction
  • CKP sensor malfunction