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Home >> Subaru >> 2018 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) (Except For STI) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0336: Crankshaft Position Sensor "A" Circuit Range/Performance >> Notes

DTC P0336: Crankshaft Position Sensor "A" Circuit Range/Performance: Notes

DTC detecting condition: 

Detected when two consecutive driving cycles with fault occur.

Trouble symptom: 

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode Ref. to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>Clear Memory Mode>OPERATION , and inspection mode Ref. to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>Inspection Mode>PROCEDURE .
  1. CHECK CONDITION OF CRANKSHAFT POSITION SENSOR  .

    Check installation condition of the crankshaft position sensor.

    Is the crankshaft position sensor installation bolt tightened securely?

    Yes: Go to  2.

    No: Tighten the crankshaft position sensor installation bolt securely. Ref. to FUEL INJECTION (FUEL SYSTEMS) (EXCEPT FOR STI)>Crankshaft Position Sensor .

  2. CHECK CRANKSHAFT POSITION SENSOR PLATE  .

    Check the crankshaft position sensor plate.

    Is there crack or damage in the crankshaft position sensor plate teeth?

    Yes: Replace the crankshaft position sensor plate. Ref. to MECHANICAL(EXCEPT FOR STI)>Cylinder Block .

    No: Go to  3.

  3. CHECK INSTALLATION CONDITION OF TIMING CHAIN  .

    Turn the crankshaft, and align alignment mark on crank sprocket with alignment mark on cylinder block.

    ST 18252AA000 CRANKSHAFT SOCKET 

    Is the timing chain dislocated from its proper position?

    Yes: Correct the installation condition of timing chain. Ref. to MECHANICAL(EXCEPT FOR STI)>Timing Chain Assembly .

    No: Replace the crankshaft position sensor. Ref. to FUEL INJECTION (FUEL SYSTEMS) (EXCEPT FOR STI)>Crankshaft Position Sensor .